24,854 results match your criteria Nevi of Ota and Ito


Deadbolt cataract due to misplanted minishunt.

Authors:

J Cataract Refract Surg 2022 Jul;48(7):863

A 62-year-old woman with stable unilateral glaucoma in the left eye presented for a cataract consultation. In 2010, laser peripheral iridotomies (LPI) were performed on both eyes by a different provider. Her postoperative course was complicated by a recalcitrant steroid response with a highest intraocular pressure (IOP) of 65 mm Hg in the left eye. Read More

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The Spectrum of Spitz Melanocytic Lesions: From Morphologic Diagnosis to Molecular Classification.

Front Oncol 2022 7;12:889223. Epub 2022 Jun 7.

Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, United States.

Spitz tumors represent a distinct subtype of melanocytic lesions with characteristic histopathologic features, some of which are overlapping with melanoma. More common in the pediatric and younger population, they can be clinically suspected by recognizing specific patterns on dermatoscopic examination, and several subtypes have been described. We now classify these lesions into benign Spitz nevi, intermediate lesions identified as "atypical Spitz tumors" (or Spitz melanocytoma) and malignant Spitz melanoma. Read More

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Colored Texture Analysis Fuzzy Entropy Methods with a Dermoscopic Application.

Entropy (Basel) 2022 Jun 15;24(6). Epub 2022 Jun 15.

Univ Angers, LARIS, SFR MATHSTIC, F-49000 Angers, France.

Texture analysis is a subject of intensive focus in research due to its significant role in the field of image processing. However, few studies focus on colored texture analysis and even fewer use information theory concepts. Entropy measures have been proven competent for gray scale images. Read More

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Secondary Malignant Tumors Arising in Nevus Sebaceus: Two Case Reports.

Diagnostics (Basel) 2022 Jun 13;12(6). Epub 2022 Jun 13.

Department of Dermatology, International University of Health and Welfare, Narita 286-8520, Chiba, Japan.

Nevus sebaceus is a benign tumor that is present at birth and is often seen on the scalp or face. Secondary malignant tumors sometimes occur in nevus sebaceus in adulthood. Herein, we present two malignant tumors arose from nevus sebaceus. Read More

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Clinical and Molecular Spectrum of Sporadic Vascular Malformations: A Single-Center Study.

Biomedicines 2022 Jun 20;10(6). Epub 2022 Jun 20.

Dermatology Unit and Genodermatosis Unit, Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, Piazza Sant'Onofrio 4, 00165 Rome, Italy.

Sporadic vascular malformations (VMs) are a large group of disorders of the blood and lymphatic vessels caused by somatic mutations in several genes-mainly regulating the RAS/MAPK/ERK and PI3K/AKT/mTOR pathways. We performed a cross-sectional study of 43 patients affected with sporadic VMs, who had received molecular diagnosis by high-depth targeted next-generation sequencing in our center. Clinical and imaging features were correlated with the sequence variants identified in lesional tissues. Read More

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Genetic and methylation profiles distinguish benign, malignant and spitzoid melanocytic tumors.

Int J Cancer 2022 Jun 23. Epub 2022 Jun 23.

Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Germany, and German Cancer Consortium (DKTK), Heidelberg, Germany.

Accurate classification of melanocytic tumors is important for prognostic evaluation, treatment and follow-up protocols of patients. The majority of melanocytic proliferations can be classified solely based on clinical and pathological criteria, however in select cases a definitive diagnostic assessment remains challenging and additional diagnostic biomarkers would be advantageous. We analysed melanomas, nevi, Spitz nevi, and atypical spitzoid tumors using parallel sequencing (exons of 611 genes and 507 gene translocation analysis) and methylation arrays (850k Illumina EPIC). Read More

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[The risks of tanning with the Barbie drug].

Ned Tijdschr Geneeskd 2022 May 19;166. Epub 2022 May 19.

Groene Hart Ziekenhuis, afd. Interne Geneeskunde, Gouda.

Background: Melanotan II, also known as 'Barbie drugs', can be purchased over the internet and in gyms to facilitate sunless tanning. The purchased product is a alpha-melanocyte-stimulating hormone (α-MSH) analogue, which stimulates the production of eumelanin to get skin pigmentation. However, previous research showed that Melanotan supports the development of new pigmented and dysplastic naevi. Read More

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Expanded scalp flap combined with laser hair removal to reconstruct facial defects around the hairline.

J Plast Reconstr Aesthet Surg 2022 Apr 29. Epub 2022 Apr 29.

Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, 127 Changle West Road, Xi'an 710032, People's Republic of China. Electronic address:

Background: Congenital and acquired facial lesions around the hairline can bring huge physical and psychological trauma to patients. At present, reconstruction of this area remains a challenge. In this study, we present an alternative technique to reconstruct the aesthetic units using an expanded scalp flap combined with laser hair removal. Read More

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[Reconstruction of facial skin defects by the V-Y subcutaneous pedicle flap].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022 Jun;57(6):718-723

Department of Otolaryngology, Guangdong Province Hospital of Integrated Traditional Chinese and Western Medicine, Foshan 528200, China.

To investigate the method and efficacy of reconstruction of facial skin defects after removing the lesions by applying the V-Y subcutaneous pedicle flap. A retrospective analysis was performed on 23 patients with facial reconstruction by using V-Y subcutaneous pedicle flap in the Otolaryngology Department of Guangdong Integrated Traditional Chinese and Western Medicine Hospital from March 2012 to April 2021. Patient ages ranged from 45 to 85 years old, with a mean age of 66. Read More

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An EfficientNet-based modified sigmoid transform for enhancing dermatological macro-images of melanoma and nevi skin lesions.

Comput Methods Programs Biomed 2022 Jun 5;222:106935. Epub 2022 Jun 5.

Department of Electronics and Communication Engineering, National Institute of Technology Puducherry, Karaikal, Puducherry 609609, India. Electronic address:

Background And Objective: During the initial stages, skin lesions may not have sufficient intensity difference or contrast from the background region on dermatological macro-images. The lack of proper light exposure at the time of capturing the image also reduces the contrast. Low contrast between lesion and background regions adversely impacts segmentation. Read More

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Making a mouse out of a molehill: how precision modeling repurposes drugs for congenital giant nevi.

Trends Cancer 2022 Jun 17. Epub 2022 Jun 17.

Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA. Electronic address:

Patients with congenital giant nevi (CGN), which can compromise quality of life and progress to melanoma, have limited treatment options. Choi et al. have demonstrated that topical application of a proinflammatory hapten for alopecia treatment [squaric acid dibutylester (SADBE)] caused nevus regression and prevented melanoma in an Nras mouse CGN model. Read More

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THE PROPORTION OF ORAL LICHEN PLANUS CASES WITH MALIGNANT TRANSFORMATION MAY BE HIGHER, THAN REPORTED TO DATE.

Authors:
Linda L Cheng

J Evid Based Dent Pract 2022 06 16;22(2):101717. Epub 2022 Mar 16.

Article Title And Bibliographic Information: González-Moles MÁ, Ramos-García P, Warnakulasuriya S. An appraisal of highest quality studies reporting malignant transformation of oral lichen planus based on a systematic review. Oral Dis. Read More

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Azole inhibitors of mushroom and human tyrosinases: Current advances and prospects of drug development for melanogenic dermatological disorders.

Authors:
Usman Ghani

Eur J Med Chem 2022 Jun 9;239:114525. Epub 2022 Jun 9.

Clinical Biochemistry Unit, Department of Pathology, College of Medicine, King Saud University, Riyadh, 12372, Saudi Arabia. Electronic address:

Azoles are a famous and promising class of drugs for treatment of a range of ailments especially fungal infections. A wide variety of azole derivatives are also known to exhibit tyrosinase inhibition, some of which possess promising activity with potential for treatment of dermatological disorders such as post-inflammatory hyperpigmentation, nevus, flecks, melasma, and melanoma. Recently, thiazolyl-resorcinol derivatives have demonstrated potent human tyrosinase inhibition with a safe and effective therapeutic profile for treatment of skin hyperpigmentation in humans, which are currently under clinical trials. Read More

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Central nervous system magnetic resonance imaging abnormalities and neurologic outcomes in pediatric patients with congenital nevi: A 10-year multi-institutional retrospective study.

J Am Acad Dermatol 2022 Jun 15. Epub 2022 Jun 15.

Department of Dermatology, Massachusetts General Hospital, Boston, MA; Dermatology Program, Department of Allergy and Immunology, Boston Children's Hospital, Boston, MA; Harvard Medical School, Boston, MA.

Background: High-risk congenital melanocytic nevi (CMN) are associated with abnormalities of the central nervous system, prompting MRI screening guidelines.

Objective: Describe MRI brain and spine abnormalities in children with CMN and report trends between nevus features, MRI findings, and neurologic outcomes.

Methods: Retrospective review of individuals aged ≤ 18 years with an MRI of brain and/or spine and at least 1 dermatologist-diagnosed CMN. Read More

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Metformin inhibits melanoma cell metastasis by suppressing the miR-5100/SPINK5/STAT3 axis.

Cell Mol Biol Lett 2022 Jun 15;27(1):48. Epub 2022 Jun 15.

Department of Medical Oncology, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, People's Republic of China.

Melanoma is the most lethal skin cancer characterized by its high metastatic potential. It is urgent to find novel therapy strategies to overcome this feature. Metformin has been confirmed to suppress invasion and migration of various types of cancer. Read More

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Grouped cerebriform papules in a child.

J Pediatr 2022 Jun 13. Epub 2022 Jun 13.

Department of Dermatology, University of California, Irvine. 118 Medical Surge I, Irvine, CA 92697-2400.

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Assessing temporal and geographic contacts across the Adriatic Sea through the analysis of genome-wide data from Southern Italy.

Genomics 2022 Jun 13:110405. Epub 2022 Jun 13.

Human Technopole, 20157 Milan, Italy; Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland; Department of Cultural Heritage, University of Salento, 73100 Lecce, Italy; Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy. Electronic address:

Southern Italy was characterised by a complex prehistory that started with different Palaeolithic cultures, later followed by the Neolithization and the demic dispersal from the Pontic-Caspian Steppe during the Bronze Age. Archaeological and historical evidences point to a link between Southern Italians and the Balkans still present in modern times. To shed light on these dynamics, we analysed around 700 South Mediterranean genomes combined with informative ancient DNAs. Read More

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Immunophenotype of tumor-infiltrating lymphocytes in atypical Spitzoid tumors according to the risk of progression.

Ann Diagn Pathol 2022 Jun 7;60:151985. Epub 2022 Jun 7.

University of Barcelona, Villarroel 170, 08036, Barcelona, Spain; Department of Pathology, Hospital Clinic of Barcelona, Villarroel 170, 08036, Spain; August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Casanova 143, 08036 Barcelona, Spain. Electronic address:

The aims of the study were to investigate and compare the immunophenotype of tumor-infiltrating lymphocytes (TILs) and PD-L1 expression in a series of benign, intermediate and malignant Spitzoid lesions showing marked inflammatory lymphoid component, to find out its possible relation with the prognosis of these lesions. Six out of 97 Spitz nevus (SN) (6 %), five out of 26 atypical Spitz tumors (AST) (16 %) and seven out of 37 Spitzoid melanomas (SM) (19 %) showed diffuse, intense inflammatory component and were included in the study. The biological risk of the tumors was assessed in all AST through the melanoma 4 probe-FISH assay and the 9p21 locus exploration. Read More

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Hip dislocation based on Developmental Dysplasia of the Hip (DDH) in a patient with Giant Congenital Melanocytic Nevus (GCMN): A rare coexistence.

Authors:
M Kaya H H Muratli

Niger J Clin Pract 2022 Jun;25(6):960-963

Department of Orthopedics and Traumatology, Marmara University Pendik Training and Research Hospital, Istanbul, Turkey.

Giant congenital melanocytic nevus (GCMN) is a rare congenital benign neoplasm with the potential to become malignant. Various extracutaneous malformations may accompany GCMN. Acetabular dysplasia accompanying GCMN was described in previous studies. Read More

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Primary Cutaneous Malignant Melanoma with Rhabdomyosarcomatous Differentiation Originating from a Melanocytic Nevus in a Patient with Myelodysplastic Syndrome.

J Cutan Pathol 2022 Jun 15. Epub 2022 Jun 15.

Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Republic of Korea.

Malignant melanoma may rarely exhibit divergent differentiation, in which melanocytic markers may be lost, leading to difficulty in diagnosis. A 64-year-old man recently diagnosed with myelodysplastic syndrome complained of development of a nodule in a melanocytic nevus on his scalp. On histopathologic examination, junctional nevus nests and diffuse cellular infiltrations with a sheet-like growth pattern of pleomorphic epithelioid cells were observed in the upper dermis. Read More

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eIF6 as a Promising Diagnostic and Prognostic Biomarker for Poorer Survival of Cutaneous Melanoma.

Front Oncol 2022 30;12:848346. Epub 2022 May 30.

Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China.

Background: Skin cutaneous melanoma (SKCM) is the deadliest skin cancer and has the most rapidly increasing incidences among all cancer types. Previous research elucidated that melanoma can only be successfully treated with surgical abscission in the early stage. Therefore, reliable and specific biomarkers are crucial to melanoma diagnosis since it often looks like nevi in the clinical manifestations. Read More

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Common genetic variants associated with melanoma risk or naevus count in wild-type MC1R melanoma patients.

Br J Dermatol 2022 Jun 14. Epub 2022 Jun 14.

Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Barcelona, Spain.

Background: Hypomorphic MC1R variants are the most prevalent genetic determinants of melanoma risk in the Caucasian population. However, the genetic background of wild-type (WT) MC1R melanoma patients is poorly studied.

Objectives: To analyse the role of candidate common genetic variants on the melanoma risk and the naevi count in Spanish wild-type MC1R melanoma patients. Read More

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"Kissing" basaloid follicular hamartomas of the eyelid.

J Cutan Pathol 2022 Jun 14. Epub 2022 Jun 14.

The Warren Alpert Medical School of Brown University, Department of Dermatology.

Basaloid follicular hamartomas (BFH) are rare, benign, cutaneous adnexal tumors characterized by branching cords and anastomosing strands of basaloid cells in a loose, fibrous stroma. BFH exhibit variable clinical presentations although they are commonly observed as skin to flesh colored papules and are diagnosed based on histological features. Common systemic diseases associated with BFH include alopecia, myasthenia gravis, and palmoplantar pitting. Read More

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Clinical and molecular genetic findings of Crisponi / cold-induced sweating syndrome (CS/CISS) spectrum in patients from Turkey.

Clin Genet 2022 Jun 14. Epub 2022 Jun 14.

Department of Medical Genetics, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey.

Crisponi / cold-induced sweating syndrome (CS/CISS) is a rare autosomal recessive disorder characterized by episodic hyperthermia, arthrogryposis, impaired feeding ability, and respiratory distress. The classic CS/CISS is mainly associated with CRLF1 and, rarely, CLCF1. PERCHING syndrome, previously known as CS/CISS type-3 associated with biallelic pathogenic variants in KLHL7, is notable for its few overlapping manifestations. Read More

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Encorafenib plus cetuximab with or without binimetinib in patients with BRAF V600E-mutated metastatic colorectal cancer: real-life data from an Italian multicenter experience.

ESMO Open 2022 Jun 10;7(3):100506. Epub 2022 Jun 10.

Department of Translational Research and New Technologies in Medicine and Surgery, Unit of Medical Oncology 2, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy.

Background: Encorafenib plus cetuximab with or without binimetinib showed increased objective response rate (ORR), progression-free survival (PFS), and overall survival (OS) compared with chemotherapy plus anti-EGFR in previously treated patients with BRAF V600E-mutated (mut) metastatic colorectal cancer (mCRC). Although no formal comparison was planned, addition of binimetinib to encorafenib plus cetuximab did not provide significant efficacy advantage.

Patients And Methods: This real-life study was aimed at evaluating safety, activity, and efficacy of encorafenib plus cetuximab with or without binimetinib in patients with BRAF V600E-mut mCRC treated at 21 Italian centers within a nominal use program launched in May 2019. Read More

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Oncoviruses and melanomas: A retrospective study and literature review.

J Med Virol 2022 Jun 13. Epub 2022 Jun 13.

Dermatology Clinic, Vita-Salute S.Raffaele University, Milan, Italy.

The role of human oncoviruses in melanoma has been poorly investigated. The aim of this study was to investigate the association between oncoviruses and melanomas searching for human papillomavirus (HPV), Epstein Barr virus (EBV), and human herpesvirus 8DNA in melanoma specimens. Formalin-fixed and paraffin-embedded tissue specimens of cutaneous, mucosal, and ocular melanomas (OM) were selected from the Pathology Departments of the Galliera Hospital (Genoa) and the University Hospitals of Turin and Cagliari. Read More

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Lymphangioma of the Lower Lip-A Diagnostic Dilemma: Report of a Rare Case with a Brief Literature Review.

Case Rep Dent 2022 2;2022:7890338. Epub 2022 Jun 2.

Department of Oral and Maxillofacial Pathology, Institute of Dental Sciences, Siksha 'O' Anusandhan University, Bhubaneswar, Odisha, India.

Hamartomas are tumor-like deformities typified by cellular propagation indigenous to the original site, although they display growth arrest without the possibility for further growth. Various hamartomatous oral lesions include hemangiomas, lymphangiomas, nevi, odontomas, Cherubism, etc. Lymphangiomas are benign, developmental hamartomatous entities typified by abnormal proliferation of lymphatic vessels. Read More

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Plantar Spitz nevus mimicking melanoma.

An Bras Dermatol 2022 Jun 9. Epub 2022 Jun 9.

Dermatology Clinic, Santa Casa of São Paulo Hospital, São Paulo, SP, Brazil.

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Reconstruction of Facial Multiunit Defects Using Expanded Scalp Flap with Laser Depilation in a Group of Predominantly Pediatric Patients.

Facial Plast Surg Aesthet Med 2022 Jun 10. Epub 2022 Jun 10.

Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.

The cervical or thoracic region is currently the main donor site for repair of facial multiunit defects (FMUDs); however, its extensive clinical utilization encompasses the need for flap prefabrication and microsurgical techniques. To illuminate the feasibility of treating FMUD with expanded scalp flaps and laser depilation. From 2016 to 2020, 17 patients with facial giant congenital melanocytic nevi (GCMN) underwent scalp expansion for FMUD reconstruction. Read More

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Rosette-like formations in melanocytic neoplasms: A case report and literature review.

J Cutan Pathol 2022 Jun 9. Epub 2022 Jun 9.

Lauren V. Ackerman Laboratory of Surgical Pathology and Dermatopathology Center, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA.

Homer-Wright-like rosettes are a common finding in neural tumors but seldom seen in melanocytic nevi and melanoma. We report a case of a 23-year-old male with a compound melanocytic nevus with such rosette-like structures and summarize the current literature on this histopathological feature in melanocytic neoplasms. A symmetric, well-circumscribed, compound nevus consisting of aggregations of epithelioid melanocytes with eccentric nuclei and central eosinophilic cytoplasm, resembling Homer-Wright rosettes, was present on biopsy. Read More

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