Asymptomatic eyebrow mass. A rare presenting sign of malignant non-Hodgkin's lymphoma.

A 60-year-old woman had a solitary mass in her left eyebrow that was first thought to be a dermoid cyst and following excision and histological examination was found to be a localized, malignant, non-Hodgkin's lymphoma of the mixed lymphocytic and histiocytic type. Subsequent lymphangiography after excisional biopsy of the left eyebrow mass demonstrated extensive para-aortic and inguinal lymph node involvement.