collagenous fibroma
collagenous fibroma
A rare benign, well-circumscribed tumour, usually measuring 1–3 cm, which is more common in males in their 50s to 70s. It is predominantly peripheral and favours the arm, shoulder, neck and other sites; if adjacent to bone, it causes erosion.Clinical findings
Patients present with a painless subcutaneous mass; one-fourth of cases involve skeletal muscle.
Management
Local excision.