AbstractGranular cell tumours are uncommon tumors of putative neural origin, now incontroveribly proven to be derived from Schwann cells. They can occur in almost any part of the body. The lesions presenting over the skin are located deep in the subcutis yet are not aspirated very often and so the reports of their cytological diagnosis at these sites are sparse in literature. We report a case of 39 year old male presenting with a nodule over nape of neck which presented as a subcutaneous nodule mimicking as an adnexal tumor. Cytolgically, it showed clusters of large oval to polygonal cells with abundant amount of granular cytoplasm. The tumour was diagnosed as granular cell tumour with differential diagnosis of benign adnexal tumour. Histopathology and PAS stained sections from the excised lesion confirmed the FNA diagnosis. The aim of presenting this case is to highlight the importance of cytology in diagnosing the granular cell tumour, cytologically mimicking an adnexal tumour in subcutaneous site along with a review of literature.
Keywords: FNAC; Granular cell tumour; Subcutaneous.