Abstract
BackgroundGranular cell tumor is an uncommon benign neoplasm with a predisposition for upper aerodigestive tract, skin and soft tissue involvement. Malignant and atypical granular cell tumors account for less than 2% of the lesions and in the pediatric population they are extremely rare and atypia has not been previously reported. CaseWe present a case of a rapidly growing granular cell tumor of the vulva of a 12-year-old girl exhibiting atypical histology. The lesion demonstrated prominent Ki-67 proliferation index (up to 20%), localized areas of spindling of tumor cells, scattered apoptotic bodies and p53 overexpression. ConclusionThe current histologic diagnostic criteria of atypical granular cell tumors are evaluated while physician awareness and the need for follow-up of patients for potential recurrences of this rare entity are emphasized.
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