Spitzoid melanoma with ALK copy number gain
نویسندگان
چکیده
منابع مشابه
Spitzoid melanoma.
Because spitzoid melanoma shares many histopathologic features with Spitz nevus, it is one of the most difficult lesions to diagnose in dermatopathology. Uncertainty exists in the medical literature about how to diagnose melanocytic proliferations including Spitz nevus and spitzoid melanoma. A misdiagnosis of a melanoma as Spitz nevus is one of the most frequent causes of malpractice lawsuits i...
متن کاملA Case of Spitzoid Melanoma
Spitzoid melanoma is a subtype of melanoma that, clinically and histologically, resembles a Spitz nevus. Clinically, spitzoid melanomas usually evolve from amelanotic nodular lesions, growing to 1 cm or more in diameter. They often remain clinically undiagnosed because of their wide variety of clinical appearances and a lack of pigmentation. Distinguishing a Spitz nevus from a spitzoid melanoma...
متن کاملAnaplastic lymphoma kinase-positive anaplastic large cell lymphoma with the variant RNF213-, ATIC- and TPM3-ALK fusions is characterized by copy number gain of the rearranged ALK gene
Anaplastic lymphoma kinase (ALK)-positive anaplastic large cell lymphoma is characterized by 2p23/ALK aberrations, including the classic t(2;5)(p23;q35)/NPM1-ALK rearrangement present in ~80% of cases and several variant t(2p23/ALK) occurring in the remaining cases. The ALK fusion partners play a key role in the constitutive activation of the chimeric protein and its subcellular localization. U...
متن کاملSpitzoid melanoma: dermoscopic report and diagnostic discussion.
We present a case of a 16-year-old young man who came for a dermatologic appointment due to acne. He presented a pigmented asymptomatic lesion on the back of his right thigh. Dermoscopic examination revealed uncommon aspects, highly suspect of nodular melanoma, in particular a blue-whitish veil, striae and asymmetric globules. The lesion was promptly removed and the material referred for histop...
متن کاملHypopigmented atypical Spitzoid neoplasms (atypical Spitz nevi, atypical Spitz tumors, Spitzoid melanoma): a clinicopathological update
The clinicopathologic classification, diagnosis, and management of Spitzoid melanocytic lesions is one of the most problematic topics in dermato-oncology and dermatopathology. After earlier anecdotal reports [1,2], the controversial history of these controversial lesions began in 1948 when Sophie Spitz described 13 cases of what she called “juvenile melanoma,” underlining its presumably good pr...
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ژورنال
عنوان ژورنال: British Journal of Dermatology
سال: 2019
ISSN: 0007-0963,1365-2133
DOI: 10.1111/bjd.17480