Case report demonstrates amelanotic melanoma arising from a giant congenital melanocytic nevus in infancy, highlighting diagnostic challenges with needle biopsy.
Giant congenital melanocytic nevi (GCMN) are rare benign congenital melanocytic proliferations. Malignant transformation of these lesions is even rarer. This case report might be the first to describe the cytomorphological features of amelanotic melanoma of the lumbosacral region arising from GCMN in infancy, diagnosed by fine needle aspiration, highlighting the diagnostic challenges and technical difficulties encountered.
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Gangadaran et al. (2024) studied this question.
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