A diagnostically‐challenging case of melanoma ex blue nevus with comprehensive molecular analysis, including the 23‐gene expression signature (myPath melanoma)

Autor: Joel A. Lefferts, Shaofeng Yan, Dorothea T. Barton, Anh Khoa Pham, Konstantinos Linos, Stephanie A. Castillo, Julia A. Bridge
Rok vydání: 2018
Předmět:
Zdroj: Journal of Cutaneous Pathology. 46:226-230
ISSN: 1600-0560
0303-6987
DOI: 10.1111/cup.13400
Popis: Melanoma ex blue nevus (MEBN) is a rare, aggressive, and potentially lethal neoplasm. Distinguishing MEBN from an atypical cellular blue nevus can be very challenging. We report a diagnostically difficult case of MEBN with lymph node metastases, in which single nucleotide polymorphism array and fluorescence in situ hybridization were used to arrive at the correct diagnosis. It was also analyzed by the recently-introduced proprietary 23-gene expression signature test. To the best of our knowledge, this is the second reported case of MEBN analyzed by the 23-gene expression signature, which provided a false-negative result. More studies are needed to assess the sensitivity and specificity of this test in various melanocytic proliferations.
Databáze: OpenAIRE