Giant acquired acral fibrokeratoma: A case report

Abstract

Acquired acral fibrokeratoma (AAF) is a rare benign fibrous tumor. Its size is usually small (i.e., <0.5 cm). However, few cases with giant lesions (i.e., >1 cm) have been reported. A 17-year-old Saudi male presented to the Dermatology Outpatient Clinic of Aseer Central Hospital, Aseer Region, Saudi Arabia, with a painless rounded skin-colored exophytic nodule arising from the dorsal surface of the right middle toe, 1.7 cm in diameter. The tumor was surgically excised. Histopathology examination revealed a giant polyploid lesion, composed of massive hyperkeratosis, acanthosis, a core of thick collagen bundles and vertically oriented small dermal blood vessels. The diagnosis was giant AAF. There was no evidence of recurrence after surgical excision. AAF is a rare benign skin tumor which should be differentiated from other similar skin lesions. Surgical excision is the first line for treatment.

Giant acquired digital fibrokeratoma

“…ADFKs are benign, solitary, hyperkeratotic well-defined papules in digitate form looking like horns with a collarette of skin at its base. The lesions are usually dome-shaped, although they may present as elongated finger-like projections, as in the index case 1 2. Common sites of occurrence are on fingers and toes but can also be seen on the lower lip, nose, elbow, prepatellar area and periungual tissue.…”

Giant acquired ungual fibrokeratoma of the nail matrix

“…Only few cases with giant lesions (>1 cm) have been reported. 2,3 The aetiology of acquired ungual fibrokeratoma is unknown. Trauma has often been proposed as a predisposing factor, but our patient does not have a clear history of trauma.…”