Results 11 to 20 of about 13,359 (150)

Allele-Specific GNAQ Q209 Mutations Reveal Context-Dependent Oncogenic Programs in Uveal Melanoma. [PDF]

open access: yesPigment Cell Melanoma Res
Using matched immune‐competent, multistep uveal melanoma models, we show that GNAQ Q209L and Q209R mutations are not functionally equivalent. Q209L drives faster in vivo progression but reduces in vitro proliferation and migration, whereas Q209R promotes greater in vitro fitness and preferential FAK‐YAP activation, revealing an allele‐dependent ...
Jarajapu V   +5 more
europepmc   +2 more sources

Rapidly Progressive Metastatic Sertoli Cell Tumor Associated With an Adenomatous Polyposis Coli Mutation: A Case Report and Literature Review. [PDF]

open access: yesIJU Case Rep
ABSTRACT Introduction Sertoli cell tumors are rare testicular sex cord‐stromal tumors, and clinically malignant behavior is uncommon. We report a rapidly progressive metastatic Sertoli cell tumor associated with an APC mutation. Case Presentation A 27‐year‐old man with familial adenomatous polyposis (FAP) presented with painless right scrotal ...
Obayashi K   +9 more
europepmc   +2 more sources

Cytological Features of Clear Cell Sarcoma in Exfoliative and Effusion Cytology Specimen-A Case Report and Literature Review. [PDF]

open access: yesDiagn Cytopathol
ABSTRACT Clear cell sarcoma of soft tissue (CCSST) with malignant effusion is a rare yet clinically aggressive appearance, which may pose a diagnostic pitfall with its overlapping cytomorphologic features with metastatic melanoma and carcinoma.
Wu WH, Ng JKM, Li JJX.
europepmc   +2 more sources

Medullary Thyroid Carcinoma Showing Melanocytic Differentiation: A Report of a Rare Case

open access: yesEndocrinology Research and Practice, 2015
Medullary thyroid carcinoma (MTC) accounts for 5-10% of all thyroid malignancies. These tumors show variable morphological features, however, to the best of our knowledge, melanocytic differentiation is rare with only 11 reported cases.
Serap Karaarslan   +5 more
doaj   +1 more source

On the peculiarities of seborrheic keratosis pigmentation

open access: yesVestnik Dermatologii i Venerologii, 2019
Seborrheic keratosis (SK) is a common benign epithelial skin tumor that exists in a variety of clinical op - tions. The color of the tumor varies from yellow to dark brown, which leads to diagnostic errors. There is аlittle data about pigmentation of the
A. K. Alexandrova, V. A. Smolyannikova
doaj   +1 more source

Melanoma of unknown primary origin metastasizing to visceral organs in a sheep

open access: yesBrazilian Journal of Veterinary Pathology, 2018
Malignant melanomas are quite uncommon in sheep and goats. A three-year-old native female sheep with a history of sudden death was referred for postmortem examination.
Ahmad Oryan   +3 more
doaj   +1 more source

Primary Melanoma of the Lung: A Systematic Review

open access: yesMedicina, 2020
Background and Objectives: The respiratory apparatus, generally affected by highly aggressive tumors like lung cancer and mesothelioma, is rarely affected by primary malignant melanoma.
Panagiotis Paliogiannis   +7 more
doaj   +1 more source

Anti-Melanogenic Activity of Gagunin D, a Highly Oxygenated Diterpenoid from the Marine Sponge Phorbas sp., via Modulating Tyrosinase Expression and Degradation

open access: yesMarine Drugs, 2016
Tyrosinase is the rate-limiting enzyme critical for melanin synthesis and controls pigmentation in the skin. The inhibition of tyrosinase is currently the most common approach for the development of skin-whitening cosmetics.
Ho Yeon Lee   +6 more
doaj   +1 more source

SOX11, SOX10 and MITF Gene Interaction: A Possible Diagnostic Tool in Malignant Melanoma

open access: yesLife, 2021
Malignant melanoma (MM) is a highly heterogenic tumor whose histological diagnosis might be difficult. This study aimed to investigate the diagnostic and prognostic utility of the conventional pan-melanoma cocktail members (HMB-45, melan-A and tyrosinase)
Marius-Alexandru Beleaua   +4 more
doaj   +1 more source

ACTIVATED CHARCOAL: A NATURAL PROTECTIVE MEASURE AGAINST THE LINGUAL DEGENERATIVE EFFECT OF TACROLIMUS IMMUNOSUPPRESSANT [PDF]

open access: yesAlexandria Dental Journal
Objective: The presented work was conducted to test the effectiveness of activated charcoal on the lingual mucosa of male rats subjected to the immunosuppressive drug tacrolimus.
Hagar Abdel Fattah   +2 more
doaj   +1 more source

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