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Revista Española de Cirugía Oral y Maxilofacial

On-line version ISSN 2173-9161Print version ISSN 1130-0558


GARCIA DE MARCOS, J.A. et al. FNA limitations in the diagnosis of pilomatrixoma. Rev Esp Cirug Oral y Maxilofac [online]. 2005, vol.27, n.6, pp.354-359. ISSN 2173-9161.

Pilomatrixoma is a benign skin neoplasm that arises from hair follicle matrix cells. The most common anatomical location is the head and neck region. Clinically, it manifests as a firm, solitary, slow-growing, painless nodule of the dermis. Complete surgical excision is the treatment of choice. With FNAB (Fine Needle Aspiration Biopsy) as a presurgical diagnostic test, the highly cellular smear with isolated cells showing a high nuclear/cytoplasmic ratio can be mistaken for a malignant tumor. We report a case of pilomatrixoma with an initial diagnosis, after the FNAB, of low-grade malignant epithelial tumor. Also, a review of the literature is made.

Keywords : Pilomatrixoma; Pilomatricoma; Calcifying epithelioma of Malherbe; Trichomatricoma; Fine Needle Aspiration Biopsy; Cytology.

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