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    Follicular lymphomatoid papulosis with follicular mucinosis: a clinicopathologic study of 3 cases with literature review and conceptual reappraisal.
    J Cutan Pathol 2016 Dec 23. Epub 2016 Dec 23.
    Department of Dermatology, University of Iowa, Iowa City, Iowa.
    Lymphomatoid papulosis (LyP), characterized by recurring, waxing and waning, cutaneous papulonodules, is increasingly recognized to represent a heterogeneous collection of pathologically dissimilar subtypes. Recently, a follicular LyP variant was proposed, featuring folliculotropism. Folliculotropism by atypical lymphocytes is conventionally associated with follicular mucinosis and mycosis fungoides (MF), and review of the literature suggests co-occurrence of folliculotropism and follicular mucinosis in LyP to be rare, with only 3 cases identified to date. Read More

    Past, present and future of cutaneous lymphomas.
    Semin Diagn Pathol 2016 Nov 28. Epub 2016 Nov 28.
    Research Unit Dermatopathology, Department of Dermatology, Medical University of Graz, Auenbruggerplatz 8, 8036 Graz, Austria. Electronic address:
    Primary cutaneous lymphomas represent a broad group of diseases with different clinical, histopathological, phenotypic, molecular, and prognostic features. All cutaneous lymphomas share the same tropism of neoplastic lymphocytes for the skin, but precise classification is paramount for proper management of the patients. Primary cutaneous lymphomas are classified according to the schemes proposed by the European Organization for Research and Treatment of Cancer (EORTC)-Cutaneous Lymphomas Task Force together with the World Health Organization (WHO) in 2005, and the WHO classification of 2008 with the 2016 update. Read More

    Primary cicatricial alopecia: Other lymphocytic primary cicatricial alopecias and neutrophilic and mixed primary cicatricial alopecias.
    J Am Acad Dermatol 2016 Dec;75(6):1101-1117
    Department of Dermatology, University of British Columbia, Vancouver, British Columbia, Canada; Department of Dermatology, New York University, New York, New York.
    Primary cicatricial alopecias can be frustrating for both patients and physicians. Proper diagnosis guides more successful management of these challenging conditions. Part II will cover the remaining lymphocytic primary cicatricial alopecias, which include pseudopelade of Brocq, central centrifugal cicatricial alopecia, alopecia mucinosa, and keratosis follicularis spinulosa decalvans. Read More

    Tick Bite Alopecia: A Report and Review.
    Am J Dermatopathol 2016 Nov;38(11):e150-e153
    *Department of Pathology, Penn State College of Medicine, The Penn State Hershey Medical Center, Hershey, PA; †Penn State College of Medicine, The Penn State Hershey Medical Center, Hershey, PA; and ‡Department of Dermatology, Penn State College of Medicine, The Penn State Hershey Medical Center, Hershey, PA.
    Tick bites can cause a number of local inflammatory reactions, which are often difficult to differentiate from those induced by other arthropod bites or stings. These include erythematous nodular or pustular lesions, erosive plaques, annular lesions of erythema chronicum migrans, and both scarring and nonscarring inflammatory alopecia. We report a case of nonscarring alopecia in a 21-year-old male who reported a recent history of tick bite to the scalp. Read More

    Trichotillomania: Bizzare Patern of Hair Loss at 11-Year-old Girl.
    Acta Dermatovenerol Croat 2016 Jun;24(2):150-3
    Jana Zímová, MD. Department of Dermatology. University Hospital Ostrava. 17. listopadu 1790. 708 52 Ostrava - Poruba. Czech Republic;
    Trichotillomania (TTM) is defined by the Diagnostics and Statistic Manual of Mental Disorders, 4th edition (DMS-IV) as hair loss from a patient`s repetitive self-pulling of hair. The disorder is included under anxiety disorders because it shares some obsessive-compulsive features. Patients have the tendency towards feelings of unattractiveness, body dissatisfaction, and low self-esteem (1,2). Read More

    Follicular Lymphomatoid Papulosis: An Eosinophilic-Rich Follicular Subtype Masquerading as Folliculitis Clinically and Histologically.
    Am J Dermatopathol 2016 Jan;38(1):e1-10
    Departments of *Dermatology and Cutaneous Biology; †Surgery, Thomas Jefferson University, Philadelphia, PA; and ‡Dermatologist and Dermatopathologist, Bryn Mawr Skin and Cancer Institute, Main Line Health, Bryn Mawr, PA.
    Lymphomatoid papulosis (LyP) is an uncommon CD30 lymphoproliferative disorder with a relatively excellent prognosis. Ten to twenty percent of cases, however, are associated with a lymphoma, typically systemic or cutaneous anaplastic large cell lymphoma, mycosis fungoides, or Hodgkin lymphoma. Subtypes divide LyP into infiltrate-descriptive categories along a spectrum of histological manifestation. Read More

    Follicular Mucinosis in a Male Adolescent with a History of Acute Myelogenous Leukemia and Graft-versus-Host Disease.
    Pediatr Dermatol 2016 Jan-Feb;33(1):e34-5. Epub 2015 Dec 8.
    Department of Dermatology, School of Medicine, Johns Hopkins University, Baltimore, Maryland.
    Although many cases of follicular mucinosis are idiopathic, numerous others are associated with mycosis fungoides or, rarely, other neoplastic or inflammatory disorders. There are only three reported cases, all in adults, of follicular mucinosis arising in association with acute myelogenous leukemia, two of which involved mycosis fungoides-associated follicular mucinosis, including one case in which the patient had a preceding bone marrow transplant. We present the first reported case of follicular mucinosis arising in an adolescent with acute myelogenous leukemia and acute graft-versus-host disease after an allogeneic bone marrow transplantation. Read More

    Follicular mucinosis: an important differential diagnosis of leprosy in an endemic area.
    An Bras Dermatol 2015 May-Jun;90(3 Suppl 1):147-9
    Fundação Alfredo da Matta, Manaus, AM, BR.
    Primary follicular mucinosis is a rare dermatosis characterized by the accumulation of mucin in the follicular epithelium and sebaceous glands. Clinically, it is characterized by the presence of papules or well-circumscribed and infiltrated plaques. In this paper, we report the case of a female patient, seven years old, evolving for three months with an asymptomatic, erythematous and infiltrated plaque located in the chin region. Read More

    Idiopathic follicular mucinosis or mycosis fungoides? classification and diagnostic challenges.
    Cutis 2015 Jun;95(6):E9-E14
    601 Elwood St, Room 2.2129, Strong Memorial Hospital, Rochester, NY 14642, USA.
    In recent years, the distinction between idiopathic follicular mucinosis (FM) and lymphoma-associated follicular mucinosis (LAFM) has been made through assessment of T-cell receptor gene rearrangement, flow cytometry, and immunohistochemistry. These methods, among others, have mostly identified monoclonality as a defining characteristic of LAFM; however, this finding cannot be considered conclusive, as monoclonality also has been described in benign inflammatory dermatoses such as lichen planus and idiopathic FM. Pure histologic diagnosis also is unreliable in many cases, as the histologic patterns of idiopathic FM and LAFM overlap. Read More

    Cutaneous focal mucinosis of the scalp and adenocarcinoma of the lung: association or coincidence?
    J Bras Pneumol 2015 Mar-Apr;41(2):206-8
    Centro Hospitalar de Lisboa Central, Curry Cabral Hospital, Department of Dermatology, Lisbon, Portugal, 3 Head, Department of Dermatology, Curry Cabral Hospital, Centro Hospitalar de Lisboa Central - CHLC, Central Lisbon Hospital Center - Lisbon, Portugal.

    Childhood follicular mucinosis co-existed with alopecia universalis.
    J Med Assoc Thai 2015 Apr;98(4):431-4
    We report a case of a 6-year-old girl presented with diffuse scalp and body hair loss and developed multiple groups of follicular papules on the trunk. She was diagnosed as follicular mucinosis co-existed with alopecia universalis. Histopathological study supported the diagnosis and did not find malignancy cells. Read More

    Frequency of primary cutaneous lymphoma variants in Austria: retrospective data from a dermatology referral centre between 2006 and 2013.
    J Eur Acad Dermatol Venereol 2015 Aug 20;29(8):1517-23. Epub 2015 Jan 20.
    Karl Landsteiner Institute of Dermatological Research, St. Pölten, Austria.
    Background: Primary cutaneous lymphomas (PCL) are a heterogenous group of rare lymphoid neoplasms with incomplete information on global and regional prevalence. The recently introduced lymphoma classifications define distinctive clinicopathological disease entities that should allow for more accurate epidemiological assessment.

    Objective: The aim of this study was to evaluate the prevalence and clinical spectrum of PCL diagnosed and treated at the Department of Dermatology and Venereology in St. Read More

    Histologic features of alopecias: part II: scarring alopecias.
    Actas Dermosifiliogr 2015 May 24;106(4):260-70. Epub 2014 Oct 24.
    Servicio de Dermatología, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, España. Electronic address:
    The diagnosis of disorders of the hair and scalp can generally be made on clinical grounds, but clinical signs are not always diagnostic and in some cases more invasive techniques, such as a biopsy, may be necessary. This 2-part article is a detailed review of the histologic features of the main types of alopecia based on the traditional classification of these disorders into 2 major groups: scarring and nonscarring alopecias. Scarring alopecias are disorders in which the hair follicle is replaced by fibrous scar tissue, a process that leads to permanent hair loss. Read More

    The clinical features and histopathologic patterns of folliculotropic mycosis fungoides in a series of 38 cases.
    J Cutan Pathol 2015 Jan 8;42(1):22-31. Epub 2014 Dec 8.
    Department of Pathology, Cerrahpaşa Medical Faculty, Istanbul University, Istanbul, Turkey.
    Background: The recognition of folliculotropic mycosis fungoides (FMF) may pose diagnostic challenges, owing to the variety of histopathological findings.

    Objective: In this study, our aim is to describe the broad spectrum of the histopathological patterns in a total of 86 biopsies from 38 patients with FMF, together with the clinical features.

    Results: The most frequent histopathologic pattern was the folliculocentric/folliculotropic pattern, with or without follicular mucinosis. Read More

    Follicular mucinosis associated with nonlymphoid skin conditions.
    Am J Dermatopathol 2014 Sep;36(9):705-9
    Departments of *Dermatology, and †Pathology, University Hospital of Salamanca, Salamanca, Spain.
    Background: Follicular mucinosis coexisting with lymphoproliferative disorders has been thoroughly debated. However, it has been rarely reported in association with inflammatory disorders.

    Methods: Thirteen cases have been retrieved, and those with cutaneous lymphoma or alopecia mucinosa were excluded. Read More

    Clinical features of primary cicatricial alopecia in Chinese patients.
    Indian J Dermatol Venereol Leprol 2014 Jul-Aug;80(4):306-12
    Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China.
    Background: There have been few reports on primary cicatricial alopecias (PCR) especially from Asia (PCA).

    Aims: To study the clinical, pathological and dermoscopic characteristics of PCA among Chinese patients.

    Methods: A retrospective analysis of the clinical data of 59 patients with PCA was conducted and the dermoscopic, pathological, treatment and prognosis characteristics analyzed. Read More

    Two Clinically Unusual Cases of Folliculotropic Mycosis Fungoides: One with and the Other without Syringotropism.
    Ann Dermatol 2014 Jun 12;26(3):385-91. Epub 2014 Jun 12.
    Department of Pathology, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey.
    Mycosis fungoides is the most common form of cutaneous T-cell lymphoma, and it rarely exhibits predilection for hair follicle and eccrine gland infiltration. Here, we present 2 similar cases that display folliculotropism with varying amounts of follicular mucinosis, with and without syringotropism. The features observed in both cases were cystic, comedo-like, acneiform lesions; generalized involvement with loss of body hair; pruritus; and hidradenitis suppurativa-like lesions. Read More

    Cutaneous mucinosis in a strain of brown-egg laying chickens.
    Vet Pathol 2015 Mar 18;52(2):351-5. Epub 2014 Jun 18.
    California Animal Health and Food Safety Laboratory System, Tulare, CA, USA School of Veterinary Medicine, University of California-Davis, Tulare, CA, USA
    Cutaneous mucinosis is a cutaneous disorder described in humans, dogs, and rarely cats but never reported in birds. Twenty-six brown egg-laying chickens between ages 43 and 46 weeks had a history of feather loss, scaly, dry skin, weight loss, and decreased egg production. Microscopic findings in the skin included fragmentation of collagen bundles and interstitial, periadnexal, and perivascular dermal accumulation of wispy, mildly basophilic material that was also occasionally observed within the follicular epithelium. Read More

    Follicular mucinosis associated with pregnancy.
    Int J Dermatol 2014 Oct 5;53(10):e462-4. Epub 2014 Jun 5.
    Department of Dermatology, Gyeongsang National University Hospital, Jinju, Gyeongnam 660-702, Korea; School of Medicine, Gyeongsang National University Hospital, Jinju, Gyeongnam 660-702, Korea; Department of Dermatology, Gyeongsang National University and Hospital, Gyeongsang Institute of Health Science, Jinju, Gyeongnam 660-702, Korea.

    Follicular mucinosis - case report.
    An Bras Dermatol 2014 Mar-Apr;89(2):337-9
    Faculdade Evangélica do Paraná, Curitiba, PR, Brazil.
    Follicular mucinosis, also known as alopecia mucinosa, is a cutaneous mucinosis histologically characterized by accumulation of dermal type mucin in the pilosebaceous follicle and sebaceous glands. It presents in two forms, a primary or idiopathic form and a secondary form associated with various benign or malignant processes. Among the malignant processes, the main association is with mycosis fungoides. Read More

    Folliculotropic T-cell infiltrates associated with B-cell chronic lymphocytic leukaemia or MALT lymphoma may reveal either true mycosis fungoides or pseudolymphomatous reaction: seven cases and review of the literature.
    J Eur Acad Dermatol Venereol 2015 Jan 19;29(1):77-85. Epub 2014 Mar 19.
    Department of Dermatology, AP-HP, Henri Mondor Hospital, Créteil.
    Background: Mycosis fungoides (MF) and pseudo-MF (or MF simulant) can be associated with B-cell malignancies, but distinction between a true neoplasm and a reactive process may be difficult.

    Objectives: To report seven patients with B-cell malignancy and folliculotropic MF or pseudo-MF and emphasize on criteria allowing distinction between the two conditions.

    Methods: We retrospectively and prospectively included seven patients with B-cell malignancy who presented skin lesions histologically consisting in a folliculotropic T-cell infiltrate and reviewed the literature on the topic. Read More

    Adult T-cell leukemia-lymphoma associated with follicular mucinosis.
    Am J Dermatopathol 2014 Nov;36(11):901-3
    *Laboratory of Pathology, and †Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD.
    Follicular mucinosis is frequently associated with follicular mycosis fungoides, but its association with adult T-cell leukemia-lymphoma (ATLL) is extremely rare. We report a case of a 50-year-old female patient with a history of ATLL, after multiple treatments, with residual/recurrent skin tumors in the forehead and legs. Biopsy of a skin tumor from the forehead revealed a perifollicular and intrafollicular atypical lymphoid infiltrate with abundant mucin deposition. Read More

    Follicular induction overlying a dermatofibrosarcoma protuberans.
    Am J Dermatopathol 2014 Feb;36(2):186-8
    *Department of Dermatology, Ilsan Paik Hospital, Inje University School of Medicine, Goyang, South Korea; †Department of Dermatology, University of Pennsylvania, Philadelphia, PA; and ‡Department of Pathology, Main Line Pathology Associates, Bryn Mawr Hospital, Bryn Mawr, PA.
    The term "induction" has been used to describe epidermal changes overlying a dermatofibroma (DF). Follicular induction is most often associated with DF, but can be observed in other lesions, including focal mucinosis, nevus sebaceous, seborrheic keratosis, wart, neurofibroma, and scars. Dermatofibrosarcoma protuberans (DFSP) is a malignant fibrohistiocytic tumor that may be difficult to distinguish from DF. Read More

    Follicular mucinosis.
    Indian Dermatol Online J 2013 Oct;4(4):333-5
    Lehigh Valley Hospital and Health Network, Advanced Dermatology Associates, LTD, Bethlehem, United States.
    Follicular mucinosis is an uncommon inflammatory disorder that characteristically presents as follicular papules and/or indurated plaques. The face, neck, and scalp are the most frequently affected sites, although lesions may occur on any site of the body. Histologically, the disorder is characterized by mucin deposition in the follicular epithelium. Read More

    Facial and extrafacial eosinophilic pustular folliculitis: a clinical and histopathological comparative study.
    Br J Dermatol 2014 May;170(5):1173-6
    Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Pungnapdong Songpagu, Seoul, 138-736, Korea.
    Background: Although more than 300 cases of eosinophilic pustular folliculitis (EPF) have been reported to date, differences in clinicohistopathological findings among affected sites have not yet been evaluated.

    Objectives: To evaluate differences in the clinical and histopathological features of facial and extrafacial EPF.

    Methods: Forty-six patients diagnosed with EPF were classified into those with facial and extrafacial disease according to the affected site. Read More

    Adult T-cell leukemia/lymphoma accompanying follicular mucinosis: a case report with review of the literature.
    Int J Clin Exp Pathol 2013 15;6(12):3014-8. Epub 2013 Nov 15.
    Department of Clinical Laboratory Medicine and Division of Diagnostic Pathology, Shiga University of Medical Science Shiga, Japan.
    Follicular mucinosis is recognized as one of the histopathological reaction patterns characterized by the accumulation of mucin within follicular epithelium. It is induced by various causes including inflammatory diseases, and more than half of the cases are associated with malignant lymphoma, mainly mycosis fungoides. Herein, we describe the third documented case of adult T-cell leukemia/lymphoma (ATLL) accompanying follicular mucinosis. Read More

    Follicular mucinosis presenting as an acneiform eruption: a follow-up study.
    Am J Dermatopathol 2013 Dec;35(8):792-6
    *Department of Dermatology, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico; and †Instituto Dermatológico de Republica Dominicana, Santo Domingo, Dominican Republic.
    It has been proposed by many authors that follicular mucinosis is directly associated with mycosis fungoides (MF). Follicular mucinosis may be classified into 3 main clinical variants: a benign idiopathic form in children and young adults, which includes an acneiform presentation; an idiopathic form in older patients with a benign course; and a third variant that occurs in adults and is associated with MF. Our goal was to study the relationship between the acneiform variant of follicular mucinosis and MF. Read More

    Follicular Mucinosis Associated With Nonlymphoid Skin Conditions.
    Am J Dermatopathol 2013 Sep 20. Epub 2013 Sep 20.
    Departments of *Dermatology, and †Pathology, University Hospital of Salamanca, Paseo de San Vicente, Salamanca, Spain.
    Background:: Follicular mucinosis coexisting with lymphoproliferative disorders has been thoroughly debated. However, it has been rarely reported in association with inflammatory disorders.

    Methods:: Thirteen cases have been retrieved, and those with cutaneous lymphoma or alopecia mucinosa were excluded. Read More

    A case of idiopathic follicular mucinosis treated with bexarotene gel.
    Int J Dermatol 2014 Jul 22;53(7):838-41. Epub 2013 Aug 22.
    Department of Dermatology, Wayne State University School of Medicine, Detroit, MI, USA.
    Background: Topical bexarotene 1% gel is currently FDA-approved for early stage (IA and IB) persistent or refractory cutaneous T-cell lymphoma (CTCL). No uniformly effective therapy exists for follicular mucinosis, although several treatments are routinely used. There are no known reports of topical bexarotene being used in the treatment of idiopathic follicular mucinosis when there is no association with CTCL. Read More

    Prominent follicular mucinosis with diffuse scalp alopecia resembling alopecia areata.
    J Cutan Pathol 2013 Oct 21;40(10):887-90. Epub 2013 Aug 21.
    Department of Dermatology, Saint Louis University School of Medicine, St. Louis, MO, USA.
    A 56-year-old Caucasian female presented with a 2-month history of alopecia. On examination, she had diffuse hair loss of her scalp with some discrete patches of nonscarring alopecia. Histopathology revealed an inflammatory nonscarring alopecia with prominent follicular mucinosis and findings suggestive of alopecia areata. Read More

    Pediatric case of primary cutaneous eosinophil-rich CD30+ anaplastic large-cell lymphoma with follicular mucinosis.
    Am J Dermatopathol 2014 Mar;36(3):e78-80
    *Sikl's Department of Pathology, Charles University in Prague, Faculty of Medicine in Pilsen, Pilsen, Czech Republic; and †Bioptical Laboratory, Pilsen, Czech Republic.
    We report a pediatric case of primary cutaneous CD30 anaplastic large-cell lymphoma showing a combination of rare histopathologic features. The patient was a 14-year-old boy who had a solitary 2 × 1-cm ulcerated nodule with purulent discharge and undermined borders located in the right preauricular area that had been present for 3 weeks. Histopathologically, there was a dense, nonepidermotropic multinodular to diffuse infiltrate involving the reticular dermis and, focally, the subcutis. Read More

    Adult onset atopic dermatitis with secondary follicular mucinosis with cyclosporine induced spiny follicular hyperkeratosis and hair casts.
    Indian J Dermatol 2013 May;58(3):243
    Department of Dermatology, Dr. L. H. Hiranandani Hospital, Powai, Mumbai, India.
    Secondary follicular mucinosis developing in adult patient with atopic dermatitis (AD) was observed on histology. Due to severity of disease, patient was started on oral cyclosporine 300 mg daily in 3 divided doses. Two weeks later patient started developing multiple spiny follicular keratoses mainly on face but also on extremities and trunk along with hair casts on scalp. Read More

    Alopecia mucinosa responding to antileprosy treatment: are we missing something?
    Indian J Dermatol 2013 May;58(3):227-31
    Department of Dermatology, P. D. Hinduja Hospital, Mahim, Mumbai, India.
    Three cases with single lesion of Alopecia mucinosa (follicular mucinosis) were treated with antileprosy treatment and showed rapid and complete resolution of the lesions with no recurrence on extended follow-up. Two children, a boy aged 14 years and a girl aged 12 years presented themselves, each, with a single hypopigmented, hypoesthetic patch on the face. Clinically leprosy was suspected, however, skin biopsy from both patients revealed follicular mucinosis as the only pathological finding, without any granulomas. Read More

    Angiolymphoid hyperplasia with eosinophilia with follicular mucinosis.
    Indian J Dermatol 2013 Mar;58(2):159
    Department of Dermatology, Seth G. S. Medical College and King Edward Memorial Hospital, Mumbai, India.
    Follicular mucinosis occurring along with angiolymphoid hyperplasia with eosinophils (ALHE) has been described in a 49-year-old male. The patient presented with pruritic hyperpigmented papules and nodules on the vertex and right parietal scalp. There was no any other complaint. Read More

    Follicular mucinosis and follicular mycosis fungoides: clinicopathological evaluation of seven cases.
    Turk Patoloji Derg 2013 ;29(2):108-16
    Department of Pathology, Ege University, Faculty of Medicine, İzmir, Turkey.
    Objective: Follicular mucinosis is a disease characterized by follicular degeneration and mucin accumulation. It can be seen in mycosis fungoides, although idiopathic or forms associated with other diseases are also known. Follicular mycosis fungoides is a type of mycosis fungoides with different clinicopathological and prognostic features. Read More

    Nevoid follicular mucinosis: a new type of hair follicle nevus.
    J Cutan Pathol 2013 Sep 29;40(9):844-7. Epub 2013 Apr 29.
    Section of Dermatology, Fondazione IRCCS Cà Granda-Ospedale Maggiore Policlinico di Milano, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
    Follicular mucinosis represents a term for a histopathologic reaction pattern in follicular epithelium. It is a characteristic of alopecia mucinosa. However, it may also occur in a variety of unrelated conditions. Read More

    Pediatric primary follicular mucinosis: further evidence of its relationship with mycosis fungoides.
    Pediatr Dermatol 2013 Nov-Dec;30(6):e218-20. Epub 2013 Mar 14.
    Departamento de Anatomía Patológica, Hospital Universitario de Salamanca, Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca, Salamanca, Spain.
    Follicular mucinosis (FM) is an uncommon reaction pattern in which the accumulation of mucin in the follicular epithelium is the main pathologic finding. FM may be idiopathic (primary follicular mucinosis [PFM]), in association with mycosis fungoides or cutaneous T-cell lymphoma, or in association with other neoplastic and inflammatory conditions. Herein we report a case of PFM with identical T-cell clone rearrangement at anatomically distinct sites, supporting the idea that some authors have proposed, that FM may represent a low-grade lymphoproliferative disease related to mycoses fungoides with favorable prognosis. Read More

    Clinical and histopathological differential diagnosis of eosinophilic pustular folliculitis.
    J Dermatol 2013 Jun 12;40(6):419-23. Epub 2013 Mar 12.
    Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
    Eosinophilic pustular folliculitis (EPF) is an inflammatory disease characterized by repeated pruritic follicular papules and pustules arranged in arcuate plaques, and folliculotropic infiltration of eosinophils. The diagnosis of EPF is occasionally difficult and problematic because EPF may share the clinical appearance and histological findings with other diseases. Moreover, EPF has several clinical subtypes, including the classical type, infantile type and immunosuppression-associated type. Read More

    Follicular lymphomatoid papulosis revisited: a study of 11 cases, with new histopathological findings.
    J Am Acad Dermatol 2013 May 30;68(5):809-16. Epub 2013 Jan 30.
    Kempf und Pfaltz, Histologische Diagnostik, Zürich, Switzerland.
    Background: Follicular lymphomatoid papulosis (LyP) describes a variant of LyP with perifollicular infiltrates and some degree of folliculotropism of CD30(+) atypical lymphocytes. So far, only a few cases of follicular LyP have been described.

    Objective: Our goal was to study the clinicopathologic features of follicular LyP in a series of 11 cases (9 male, 2 female; age range 7-78 years, mean age 50 years). Read More

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