History
Patients with infantile digital fibromatosis are asymptomatic, without associated systemic symptoms.
Physical Examination
Single or multiple, firm, pink, dermal nodules with a smooth dome-shaped surface appear on the dorsolateral aspect of the distal phalanges of the digits. Infantile digital fibromatosis lesions can grow up to several centimeters in diameter. There is often deformity of the affected digit; however, they rarely cause functional impairment. Lesions are more common on the fingers than on the toes and spare the thumbs and great toes. Rarely, more than one digit is involved. Rare extradigital sites reported include the hands, feet, arms, nose, breasts, torso, and tongue. [5]
Complications
The infantile digital fibromatosis lesions rarely cause functional impairment or deformity, but they have become ulcerated in some instances.
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Dermal tumor with interlacing spindle-shaped cells and collagen bundles. Perinuclear eosinophilic inclusion bodies are not visible at this magnification.
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Firm, nontender, erythematous nodule on the fifth finger of a 17-month-old boy.
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A dermal nodule extending into the subcutaneous fat.
