Am J Surg Pathol 2017 Jun 13. Epub 2017 Jun 13.

*Department of Pathology, Clinical Research and Practical Center for Specialized Oncological Care †Department of Pathology, Medical Faculty, Saint-Petersburg State University ‡Department of Pathology, Saint-Petersburg Medico-Social Institute ∥∥Department of Dermatology, Medical Military Academy, Saint Petersburg, Russia §PathWest Laboratory Medicine WA, QEII Medical Centre ∥School of Pathology and Laboratory Medicine, University of Western Australia, Nedlands ¶PathWest Laboratory Medicine WA, King Edward Memorial Hospital, Perth, WA, Australia #Sikl's Department of Pathology, Medical Faculty in Pilsen, Charles University in Prague **Bioptical Laboratory §§Department of Obstetrics and Gynecology, Charles University Medical Faculty Hospital, Pilsen, Czech Republic ††Miraca Life Science, Irving, TX ‡‡Department of Pathology, Division of Dermatopathology, Medical College of Wisconsin, Milwaukee, WI ¶¶Dermatopathology Unit, Department of Dermatology, Zurich University Hospital, Zurich, Switzerland.

To determine whether a subset of primary extramammary Paget disease (EMPD) may originate in anogenital mammary-like glands (AGMLG), the authors studied 181 specimens of EMPD, detailing alterations in AGMLG. The latter were identified in 33 specimens from 31 patients. All patients were women, ranging in age from 38 to 93 years (median, 65 y). Read More

Dermatol Online J 2017 Apr 15;23(4). Epub 2017 Apr 15.

Department of Dermatology and Venereology, Centro Hospitalar São João EPE, Porto, Portugal.

Paget disease of the breast is an uncommon tumor of the nipple-areola complex that usually presents as an erythematous and erosive lesion. We report the case of a 61-year-old man that presented with a three-year history of an erythematous lesion of the right areola, first treated with topical corticosteroids without benefit. He was then referred to our dermatology department and the clinical suspicion of Paget disease was considered. Read More

Am J Dermatopathol 2017 Jun;39(6):419-427

*Demonstrator at the Dermatology Department, Kasralainy Faculty of Medicine, Cairo, University, Egypt; †Visiting Research Fellow, Ackerman Academy of Dermatopathology, New York, NY; ‡Attending Dermatologist, Department of Dermatology, Dermatology Hospital of Southern Medical University, Guangdong Provincial Dermatology Hospital, China; §Junior Specialist, Department of Dermatology, University of California, Irvine, CA; ¶Attending Dermatologist, Department of Dermatology, Jose R. Reyes Memorial Medical Center, Manila; ‖Medical Student, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ; #Professor of Biostatistics, Department of Biostatistics and Epidemiology, National Cancer Institute, Cairo University, Cairo, Egypt; **Dermatopathologist, Dermpath Diagnostics New York, Port Chester, NY; and ††Professor and Chairman, Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston, SC.

Background: Paget disease, Bowen disease, and malignant melanoma in situ are intraepidermal neoplasms, characterized by the presence of pagetoid scatter of atypical cells in the epidermis. This study reviewed the frequency of select histologic criteria to validate their usefulness in the histologic distinction between these entities.

Methods: One hundred forty-four specimens with the diagnosis of Bowen disease, 144 specimens with Paget disease (mammary and extramammary), and 144 specimens with malignant melanoma in situ were examined microscopically to define frequencies of select histologic criteria present in each disease. Read More

Histopathology 2017 Apr 18. Epub 2017 Apr 18.

Division of Anatomical Pathology, Vancouver General Hospital, University of British Columbia, Vancouver, Canada.

Aims: Mammary-like adenocarcinoma (MLA) of the vulva is thought to be derived from vulvar mammary-like glands. The aim of this study was to characterize a series of MLAs by using an immunohistochemical algorithm that identifies the major molecular subtypes of breast cancer.

Methods And Results: Seven cases of vulval MLA were stained for oestrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2), Ki67, epidermal growth factor receptor (EGFR), cytokeratin (CK) 5, nestin, and inositol polyphosphate-4-phosphatase (INPP4b). Read More

Zhonghua Yi Xue Za Zhi 2017 Apr;97(14):1076-1078

Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.

Objective: To investigate the clinicopathological features of acantholytic mammary Paget's disease (AMPD). Methods: From January, 2010 to October, 2016, a total of 28 patients were diagnosed as AMPD in the Department of Dermatology, Peking Union Medical College Hospital. The clinical and histopathological data of these patients were analyzed retrospectively. Read More

Am J Dermatopathol 2017 May;39(5):358-362

*Department of Pathology, Clinical Research and Practical Center for Specialized Oncological Care, Saint Petersburg, Russia; †Department of Pathology, Medical Faculty, Saint-Petersburg State University, Saint-Petersburg, Russia; ‡Department of Pathology, Saint-Petersburg Medico-Social Institute, Saint Petersburg, Russia; Departments of §Pathology, and ¶Tumor Growth Biology, Petrov's Research Institute of Oncology, Saint Petersburg, Russia; ‖Department of Medical Genetics, Saint Petersburg Pediatric Medical University, Saint Petersburg, Russia; **Sikl's Department of Pathology, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic; and ††Bioptical Laboratory, Pilsen, Czech Republic.

Anogenital mammary-like glands (AGMLGs) are nowadays considered a normal component of the anogenital area. Lesions involving AGMLGs are histopathologically very similar to their mammary counterparts, but the information on molecular biological mechanisms in these vulvar/perianal tumors is scarce. Mutations in the PI3K-AKT cascade have been found in hidradenoma papilliferum. Read More

AJR Am J Roentgenol 2017 Apr 31;208(4):916-922. Epub 2017 Jan 31.

1 Department of Diagnostic Radiology, Section of Breast Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1350, Houston, TX 77030.

Objective: The follow-up of breast lesions with imaging-concordant benign histopathology results on MRI-guided vacuum-assisted biopsy (VAB) is not currently standardized. We determined the false omission rate of breast MRI-guided VAB with benign histopathology (negative results) to assess whether breast MRI follow-up is needed.

Materials And Methods: The medical records of patients who underwent 9-gauge breast MRI-guided VAB during 2007-2012 were reviewed retrospectively. Read More

J Family Med Prim Care 2016 Apr-Jun;5(2):488-490

Department of Endocrinology, Diabetes and Metabolism, Christian Medical College, Vellore, Tamil Nadu, India.

Solid organ malignancies involving breast, prostate, and lung frequently metastasize to the skeleton. However, the occurrence of Paget's disease and metastatic bone disease in the same patient is uncommon. We report a case of a 63-year-old man who presented with back pain and a lump in the right breast. Read More

J Cutan Pathol 2016 Dec 24;43(12):1215-1219. Epub 2016 Oct 24.

Department of Dermatology, University of California, Davis, CA, USA.

The histopathologic characteristics of reactions caused by the many novel anticancer agents are under-recognized. We report a case of a 67-year-old female with locally advanced metastatic breast cancer, who initially presented with an extensive reticulated erythematous patch on the trunk caused by intravascular metastases confirmed by a skin biopsy. Owing to disease progression, she was started on ixabepilone, a mitotic inhibitor. Read More

Dermatol Clin 2016 Oct;34(4):443-458

Medicine and Medical Specialities Department, Medicine and Health Sciences Faculty, Alcalá University, Univeristy Campus, National road II, 28871- Alcalá de Henares, Madrid, Spain; Dermatology Service, Memorial Sloan-Kettering Cancer Center, 16 E 60th Street, New York, NY 10022, USA.

Solitary pink lesions can pose a particular challenge to dermatologists because they may be almost or completely featureless clinically and dermoscopically, previously requiring biopsy to exclude malignancy. However, these lesions usually are not particularly challenging histopathologically. Thus, the incorporation of in vivo reflectance confocal microscopy into the clinical practice, which allows for noninvasive examination of the skin at the cellular level revealing features previously seen only on histopathology, is particularly useful for this subset of clinically difficult lesions. Read More

Cureus 2016 Aug 15;8(8):e737. Epub 2016 Aug 15.

Diagnostic Radiology, Florida Hospital-Orlando.

Paget's disease of the bone, historically known as osteitis deformans, is an uncommon disease typically affecting individuals of European descent. Patients with Paget's disease of the bone are at increased risk for primary bone neoplasms, particularly osteosarcoma. Many cases of metastatic disease to pagetic bone have been reported. Read More

Ann Surg Oncol 2016 Dec 15;23(Suppl 5):649-655. Epub 2016 Sep 15.

Department of Surgery, Mayo Clinic, Phoenix, AZ, USA.

Background: Contrast-enhanced digital mammography (CEDM) is a new breast imaging technique. The role of CEDM in the surgical management of breast cancer has not yet been characterized.

Methods: A retrospective review of prospective breast surgery and breast imaging databases for patients who underwent CEDM and had breast cancer surgery. Read More

Histopathology 2017 Feb 21;70(3):435-441. Epub 2016 Nov 21.

Department of Pathology, AC Camargo Cancer Center, São Paulo, Brazil.

Aims: GATA3 has been reported as a specific urothelial marker among organs in the pelvic region, and has been classified as highly sensitive and specific for urothelial and breast carcinomas. Our aim was to verify GATA3 expression in extramammary Paget disease, and to determine whether it can be use to differentiate primary vulvar Paget disease from pagetoid urothelial intraepithelial neoplasia (PUIN). We also analysed HER2 protein expression and HER2 gene amplification and their roles as prognostic factors in extramammary Paget disease. Read More

Case Rep Oncol 2016 May-Aug;9(2):298-304. Epub 2016 Jun 11.

Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, Calif., USA.

Case 1: A 67-year-old Asian female was diagnosed with locally advanced high-grade salivary duct carcinoma in June 2011. Molecular analysis revealed human epidermal growth factor receptor 2 (HER-2) amplification. She received adjuvant therapy with carboplatin/paclitaxel/ trastuzumab and maintenance of trastuzumab. Read More

Breast 2016 Oct 6;29:14-23. Epub 2016 Jul 6.

Department of Pathology and Laboratory Medicine, University of Saskatchewan, Royal University Hospital, 103 Hospital Drive, Saskatoon, Saskatchewan S7N 0W8, Canada. Electronic address:

Paget's disease of the breast is characterized by eczematous changes of the nipple-areolar complex and is associated with an underlying in situ or invasive breast carcinoma in most cases. Histologically, Paget's disease is identified by epithelial cells with abundant basophilic or amphophilic, finely granular cytoplasm with a large, centrally situated nucleus, most abundant in the lower epidermal layers. Due to the rarity of the condition among breast cancers, compounded by the rarity of breast cancer in men, understanding of the disease's presentation, course, and optimal treatment in men is largely derived from case reports and extrapolation of findings from studies in female patients. Read More

J Breast Cancer 2016 Jun 24;19(2):156-62. Epub 2016 Jun 24.

Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.

Purpose: In the present study, we evaluated the levels of urokinase-type plasminogen activator (uPA) and plasminogen activator inhibitor 1 (PAI-1) by performing immunohistochemical staining to determine whether they were reliable prognostic markers in patients with breast cancer.

Methods: Demographic and clinicopathological parameters of 214 patients with invasive ductal carcinoma (IDC) and 80 patients with ductal carcinoma in situ (DCIS) who were diagnosed and treated from 2006 to 2010 were analyzed. Tissue microarray was constructed and immunohistochemical staining was performed for each specimen. Read More

Radiol Bras 2016 Mar-Apr;49(2):117-21

Affiliate Professor in the Department of Diagnostic Imaging, Escola Paulista de Medicina da Universidade Federal de São Paulo/(EPM-Unifesp), São Paulo, SP, Brazil.

Low back pain is often managed at all levels of healthcare. In general, diagnostic investigation begins with radiography of the lumbar spine. In addition to the most common findings, radiologists can identify increased density of a vertebral body, referred to as ivory vertebra. Read More

Dermatol Online J 2016 Jan 15;22(1). Epub 2016 Jan 15.

University of Texas Health Science Center at Houston.

Extramammary Paget disease (EMPD) is a rare malignant neoplasm of apocrine sweat glands that is morphologically and histologically identical to Paget disease of the breast. The primary lesion is usually a solitary, well-demarcated, erythematous, scaly plaque that may contain crust, erosions, or ulcerations. The vulva is the most common site, but any area containing apocrine sweat glands may be involved. Read More

Pathol Res Pract 2016 Apr 22;212(4):279-81. Epub 2016 Jan 22.

Department of Pathology, Yale University School of Medicine, PO Box 208023, New Haven, CT 06520-8023, USA. Electronic address:

Pathologists should be aware of the existence of a rare CK7-negative variant of breast carcinoma in general, and of Paget's disease in particular. Cytokeratin 7-negative Paget's disease and CK7-negative ductal intraepithelial neoplasia (ductal carcinoma in situ) present a major diagnostic challenge for pathologists since there is limited awareness of their existence. When there is classic Paget's morphology on H&E sections, GATA3 positivity should resolve any doubts about the diagnosis in the setting of a CK7-negative neoplastic cell population. Read More

Surg Case Rep 2015 Dec 15;1(1):103. Epub 2015 Oct 15.

Department of Surgery, Hyogo Prefectural Kaibara Hospital, 5208-1 Kaibara, Kaibara-cho, Tamba, Japan.

The patient was a 91-year-old man with change in nipple appearance, itching and redness, and a palpable breast mass. At presentation, mammary Paget's disease (PD) was clinically suspected. Skin biopsy was performed and showed epidermis invaded by Paget cells, characterized by hyperchromatic nuclei and abundant pale-staining cytoplasm. Read More

Int J Surg Pathol 2016 Sep 2;24(6):532-3. Epub 2016 Mar 2.

Weill Cornell, New York, NY, USA.

Dermatol Online J 2016 Oct 15;22(10). Epub 2016 Oct 15.

Serviço de Dermatologia e Venereologia, Centro Hospitalar de São João EPE, Porto, Portugal.

Differential diagnoses of pigmented lesions of the nipple include melanocytic nevus, melanosis of the nipple, seborrheic keratosis, pigmented basal cell carcinoma, melanoma and Paget disease. The histologic exam with appropriate immunohistochemistry is a fundamental tool to achieve a correct diagnosis. We present a patient with a pigmented lesion of her right nipple revealing mammary Paget disease and elucidate diagnostic obstacles and prognostic importance of early breast cancer detection. Read More

J Gynecol Obstet Biol Reprod (Paris) 2015 Dec 31;44(10):921-6. Epub 2015 Oct 31.

Service de chirurgie gynécologique, cancérologie gynécologique et mammaire, clinique de gynécologie, hôpital Jeanne-de-Flandre, CHRU de Lille, avenue Eugène-Avinée, 59037 Lille cedex, France.

A change in the shape or appearance of the nipple-areola complex, especially if it is unilateral and recent appearance, is a sign of underlying breast tumor. Breast imaging is then required (grade C). Any erythematous lesion of the nipple or nipple-areola can be a Paget's disease, an adenoma of the nipple or a nipple eczema. Read More

Lab Med 2015 ;46(4):332-7

Department of Pathology, University of Texas Southwestern Medical Center, Dallas

Herein, we report a rare case of invasive Paget disease of the nipple with axillary-lymph-node metastasis in a 60-year-old white woman. The patient had intermittent, bloody nipple discharge without skin changes of the nipple-areolar region. We considered the clinical diagnosis of intraductal papilloma. Read More

World J Surg Oncol 2015 Sep 26;13:285. Epub 2015 Sep 26.

Surgical Oncology Department, Oncology Center, Faculty of Medicine, Mansoura University, Mansoura, Egypt.

Background: Traditionally, conservative breast surgery was contraindicated in centrally located breast tumors, with total mastectomy as the treatment of choice. However, restorations of the central defects by the oncoplastic volume displacement or replacement techniques have been shown to be effective. The aim of the current study was to assess the surgical outcome of oncoplastic techniques after central breast tumors resection. Read More

Int J Surg Case Rep 2015 9;15:152-6. Epub 2015 Sep 9.

Department of Pathology, Brigham and Women's Hospital, Boston, MA, United States. Electronic address:

Introduction: Core needle biopsy has become the preferred method of diagnosing breast carcinomas prior to definitive surgery. The possibility of displacing tumor cells into the needle track is a concern.

Presentation Of Case: A 38 year old woman was diagnosed with right breast ductal carcinoma in situ (DCIS) with microinvasion by core needle biopsy. Read More

Cancer 2015 Dec 16;121(24):4333-40. Epub 2015 Sep 16.

Department of Surgery, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, Massachusetts.

Background: The objective of this study was to examine the effect of Paget disease (PD) on axillary lymph node metastases and survival in patients who had concomitant invasive ductal carcinoma (PD-IDC).

Methods: The Surveillance, Epidemiology, and End Results (SEER) database was used to identify women who were diagnosed with PD-IDC from 2000 to 2011, comparing baseline demographic and tumor characteristics with those who were diagnosed with IDC alone during the same period. Multivariable logistic regression was used to examine the association of PD-IDC with axillary lymph node metastasis, and breast cancer-specific survival and overall survival were compared between the PD-IDC and IDC groups using the Kaplan-Meier method and Cox proportional hazards regression. Read More

Turk J Urol 2015 Mar;41(1):43-7

Department of Pathology, Bağcılar Training and Research Hospital, İstanbul, Turkey.

Due to their efficient osteoclastic inhibitor effect in bone metabolism and antiangiogenic activity, bisphosphonates are widely used in many cancer diseases particularly in prostate cancers with bone metastasis, lung cancer, breast cancer and multiple myeloma, as well as in systemic diseases such as osteoporosis, osteopenia, Paget disease and osteogenesis imperfect for the last 13 years. Prostate cancer is a common cancer in males and it is the leading cause of bone metastasis. Mandibular metastasis is rarely encountered during the course of prostate cancer. Read More

Dig Dis Sci 2016 Apr 2;61(4):996-9. Epub 2015 Aug 2.

Division of General Surgery, Department of Surgery, Stanford University, Stanford, CA, USA.

J Dermatol 2015 Dec 16;42(12):1160-4. Epub 2015 Jul 16.

Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan.

We performed skin cancer screenings for 2 or 3 days annually from 2006 through 2013 in Oita Prefecture, Japan. Screening of approximately 3000 people in total allowed us to identify and treat several skin cancers, including five cases of malignant melanoma, four of squamous cell carcinoma, 16 of basal cell carcinoma, 11 of Bowen's disease, 17 of actinic keratosis, one of extramammary Paget's disease and one of metastatic breast carcinoma. The sensitivity and specificity for the category defined by an identified lesion associated with risk of cancer and requiring further examination (category C) were 92. Read More

Int J Gynecol Pathol 2015 Sep;34(5):487-94

Department of Pathology (T.A.N.T.), Florida Orlando Hospital, Orlando, Florida Department of Pathology & Genomic Medicine (M.T.D.) Department of Pathology (A.M.), The University of Texas MD Anderson Cancer Center, Houston, Texas Department of Pathology (J.A.C.), Albany Medical College, Albany, New York.

A spectrum of invasive adenocarcinomas presumably arising from the anogenital mammary-like glands of the vulva has been reported. Even rarer are the cases of pure ductal carcinoma in situ that originated from these unique glandular structures. Herein, we report an 81-yr-old woman presented with an invasive well-differentiated squamous cell carcinoma of the vulva. Read More

J Cutan Pathol 2015 Jul 13;42(7):480-8. Epub 2015 May 13.

Department of Diagnostic Pathology, Kainan Hospital, Yatomi-city, Aichi, Japan.

Background: The aim of this study was to evaluate the effectiveness of CD117 immunostaining for diagnosing cutaneous adnexal tumors, which has not been previously established.

Methods: CD117 immunostaining was performed on representative sections of 87 clinicopathologically confirmed cutaneous apocrine/eccrine tumors, 13 sebaceous tumors, 52 follicular tumors, 55 keratinocytic tumors, 24 metastatic tumors of the skin of known origin and 1 mammary Paget disease. Staining of 5-50% of cells was considered focally positive, and staining of 51-100% of cells was considered diffusely positive. Read More

An Bras Dermatol 2015 Mar-Apr;90(2):225-31

Faculdade de Medicina do ABC (FMABC), Santo André, SP, Brazil.

Paget's disease, described by Sir James Paget in 1874, is classified as mammary and extramammary. The mammary type is rare and often associated with intraductal cancer (93-100% of cases). It is more prevalent in postmenopausal women and it appears as an eczematoid, erythematous, moist or crusted lesion, with or without fine scaling, infiltration and inversion of the nipple. Read More

J Cutan Med Surg 2015 May-Jun;19(3):313-6. Epub 2015 Mar 13.

Case Western Reserve University School of Medicine and Department of Dermatology, Metro Health Medical Center, Cleveland, OH.

Background: Pigmented mammary Paget disease (PMPD) is a rare disease that may mimic cutaneous melanoma both in clinical presentation and on histology.

Objective: The goal of this study was to discuss the clinical and histologic similarities between PMPD and cutaneous melanoma and how to differentiate between the two diseases.

Methods: We describe an African-American patient with PMPD who was thought to have cutaneous melanoma on presentation. Read More

J Am Acad Dermatol 2015 Apr;72(4):e97-8

Department of Dermatology, Hospital Clínic de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Universitat de Barcelona, Barcelona, Spain. Electronic address:

Breast Care (Basel) 2014 Dec;9(6):431-4

Department of Surgical Oncology, Yuyao People's Hospital of Zhejiang Province, China.

Background: Paget's disease (PD) of the breast is a rare presentation of breast malignancy. Mastectomy has been considered the standard of care, but several studies have shown that breast-conserving surgery (BCS) with radiotherapy is an alternative option. According to the literature, the total recurrence rate is as high as 20-40%. Read More

Asian Pac J Cancer Prev 2015 ;16(3):1041-5

Department of Pathology, Antalya Education and Research Hospital, Antalya, Turkey E-mail :

Background: Paget's disease (PD) is a rare form of intraepithelial adenocarcinoma that involves breast and extramammarian tissues. It is often associated with ductal carcinoma in situ and/or invasive ductal cancer. Molecular pathways that play a role in development of Paget's disease are stil unclear. Read More

Case Rep Oncol Med 2015 27;2015:895151. Epub 2015 Jan 27.

Department of Hematology/Oncology Oncology, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA.

Extramammary Paget's disease (EMPD) is a rare cancer. Although EMPD is usually noninvasive and treated with local therapy, once metastatic the prognosis of EMPD is poor and treatment options are limited. We report a case of a complete response to single agent trastuzumab in a hemodialysis patient with metastatic Her2/neu overexpressed EMPD of the scrotum. Read More

Indian J Dermatol 2015 Jan-Feb;60(1):105

Department of Dermatology, STD and Leprosy, Bharati Vidyapeeth Medical College, Pune, India.

Extramammary Paget's disease is a marginated plaque resembling Paget's disease but occurring in anogenital area, axilla or most commonly on the vulva. A 62-year-old postmenopausal woman presented with extremely pruritic plaque on the perineal skin which progressed gradually over 3 years and did not respond to any topical/systemic steroids, antibiotics, and antifungals. Examination revealed 7 × 8 cm. Read More

Ann Dermatol Venereol 2015 Jan 6;142(1):70-3. Epub 2014 Nov 6.

Service de dermatologie, hôpital Erasme, université Libre de Bruxelles, route de Lennik 808, 1070 Bruxelles, Belgique.

J Am Acad Dermatol 2015 Jan;72(1):e44-5

Department of Dermatology, Sapporo Medical University School of Medicine, Japan.

Ann Dermatol 2014 Dec 26;26(6):747-50. Epub 2014 Nov 26.

Department of Dermatology, Gangnam Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea.

Pigmented mammary Paget disease is a very rare clinicopathologic variant of mammary Paget disease. Diagnosis is often difficult because its clinical and histological features are very similar to those of malignant melanoma. Herein, we report a case of pigmented mammary Paget disease misdiagnosed as malignant melanoma. Read More

Clin Breast Cancer 2015 Apr 22;15(2):e159-61. Epub 2014 Oct 22.

Department of Surgery, Bellevue Medical Center, New York University School of Medicine, New York, NY. Electronic address:

Hum Pathol 2014 Dec 7;45(12):2480-7. Epub 2014 Sep 7.

Department of Pathology Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea. Electronic address:

Mammary Paget disease with dermal invasion (invMPD) is rare, and its prognosis remains largely unknown. We reviewed MPD cases diagnosed at our institution and analyzed the clinicopathological characteristics of invMPD and non-invMPD to compare their incidences and outcomes. We retrospectively reviewed 205 cases of women diagnosed as having MPD between 1994 and 2013. Read More

Korean J Pathol 2014 Aug 26;48(4):292-6. Epub 2014 Aug 26.

Pathology Department, The Royal Oldham Hospital, Oldham, UK.

Pigmented extramammary Paget's disease (PEMPD) is an uncommon intraepithelial adenocarcinoma and a rare variant of Paget's disease affecting skin that is rich in apocrine sweat glands such as the axilla, perianal region and vulva. It most commonly occurs in postmenopausal women and presents as a superficial pigmented scaly macule, mimicking a melanocytic lesion. The histological presentation is adenocarcinoma in situ with an increased number of melanocytes scattered between the Paget's cells. Read More

Cutis 2014 Jul;94(1):35-8

1901 1st Ave, New York, NY 10029, USA.

Toker cells are epithelial clear cells found in the areolar and nipple areas of the breast, vulvar region, and other apocrine gland-bearing areas of the skin. Toker cells have been implicated in the pathogenesis of clear cell papulosis, cutaneous hamartoma with pagetoid cells, and rare cases of primary extramammary Paget disease (EMPD) but not in secondary EMPD with underlying adenocarcinoma. The pathogenesis of primary EMPD is not well defined. Read More

J Med Biogr 2014 Jun 12. Epub 2014 Jun 12.

Associate Lecturer, University of Queensland School of Medicine, Southern Clinical School; Brisbane, Australia

The year 2014 marks the bicentenary of the birth of Sir James Paget (1814-1899), the celebrated English surgeon and pathologist. Although best known for his work on bone and breast disease, Paget also played an important role in the institution of Australia's first medical school. In this article, that involvement and Paget's other antipodean influences are summarised. Read More

Cutis 2014 May;93(5):E3-5

Department of Dermatology, Complejo Hospitalario de Pontevedra. C/Dr. Loureiro Crespo n 2; 36002 Pontevedra, Spain.

Am J Dermatopathol 2015 Apr;37(4):295-8

Extramammary Paget disease of the vulva accounts for 1%–2% of the neoplasms of the anogenital area. Very rarely, extramammary Paget disease of the vulva has been associated with an underlying mammary-like carcinoma, usually ductal, extremely rarely mixed ductal and lobular. We report the case of a 60-year-old female with a recurrent extramammary Paget disease of the vulva. Read More

J Cutan Pathol 2014 Jun 2;41(6):529-35. Epub 2014 Apr 2.

Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX, USA.

Importance: Extramammary Paget disease (EMPD) is an uncommon tumor that presents in apocrine-rich skin as an irregular, pruritic plaque. Histopathologically, EMPD consists of an intraepidermal proliferation of atypical epithelioid cells. Rarely, the tumor cells contain intracytoplasmic melanin pigment, and the lesion clinically and histopathologically can mimic a melanocytic proliferation. Read More