Abstract
Fine needle aspiration (FNA) diagnosis of pilomatrixoma is rare. The cytologic presentation can be mistaken for squamous cell carcinoma because of high cellularity, high nuclear/cytoplasmic ratio and presence of anucleate squames. A 25-year-old male presented to Cook County Hospital with a slowly enlarging neck mass of three months' duration. FNA was interpreted as consisted with pilomatrixoma. Subsequently the patient had the mass removed. Histology confirmed the diagnosis of pilomatrixoma. The wide range of cell differentiation in conjunction with pertinent clinical findings, absence of nuclear atypia, tumor diathesis, mitotic figures and awareness of the entity lead to the correct diagnosis of pilomatrixoma.
Published Version
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