IP Archives of Cytology and Histopathology Research

Pilomatrixoma of right arm: a rare case diagnosed on fine needle aspiration cytology

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Author Details: Dhiraj B. Nikumbh, Sudhir Singhavi, Ravi Prabhat, Shirish R. Gondane

Volume : 2

Issue : 1

Online ISSN : 2456-9267

Print ISSN : 2581-5725

Article First Page : 10

Article End Page : 11


Pilomatrixoma, a benign adnexal tumor frequently observed in head and neck. The incidence of pilomatrixoma in upper extremities is not common and sparsely reported in the available literature. Diagnosis by pre-operative aspiration cytology has been limited to few cases of this uncommon tumor. A 4-years-old girl underwent fine needle aspiration cytology (FNAC) of a right arm subcutaneous nodule. FNAC reveled predominantly anucleated shadow (ghost) cells with few basaloid cells. A cytology impression of pilomatrixoma was rendered, which was confirmed on histopathology.
This case report highlight the role of FNAC in diagnosis of uncommon skin adnexal tumor (pilomatrixoma) to avoid misdiagnosis and over diagnosis in view of varied cytomorphology.

FNAC, Diagnosis, Pilomatrixoma, Adnexal tumor