Giant Pilomatrix Carcinoma of the Face.

This case report describes an unusually large facial pilomatrix carcinoma (PC) in a 60-year-old man. This PC had been growing slowly for 11 months and had recently ulcerated. It measured 9 cm × 7 cm × 5 cm. Initial punch biopsy findings were inconclusive. The tumor was excised in total with 5-mm margins in a supra-superficial musculoaponeurotic system plane. The defect was reconstructed with a cervicofacial bilobed rotational advancement flap. Histopathologic findings confirmed the diagnosis of PC. There was no lymph node spread or distant metastasis. The patient recovered with a good esthetic result. This case represents one of the largest facial PCs reported in the literature. Diagnostic challenges are discussed, and the literature is reviewed.