• Archives of Plastic Surgery
• /
• v.35 no.3
• /
• pp.309-311
• /
• 2008

Purpose: Collagenoma is an intradermal harmatomatous collagen proliferation among connective tissue nevi of the skin. Although there are some reports of isolated collagenomas that occurred on the sole and the palm, collagenoms at the finger has not been reported in Korea. Methods: An 11-year-old girl presented with a growing mass on the distal interphalangeal joint of the left 5th finger. It was a skin-colored, oval and mild tender mass. There were no associated cutaneous or systemic abnormal findings. Results: The nodule, at the subcutaneous level on the distal phalanx, was completely removed by excision. Grossly it was covered with normal skin, and its surface was smooth having a definite margin with a size of $1.5{\times}1.2cm$. Histopathological examination, the epidermis showed to be normal, increased thickness of collagens arranged with a whirl formation was found in the dermis. No signs of cellular component increase were observed. Conclusion: Isolated collagenoma can be aroused as a solitary nodule in at any place of the body. We report a rare case of a female patient with an isolated finger collagenoma.

• Journal of the Korean Society of Radiology
• /
• v.82 no.4
• /
• pp.977-981
• /
• 2021

Sclerotic fibroma or storiform collagenoma is a rare benign neoplasm that predominantly affects the skin layer of the head, neck, or limbs. Less frequently, it occurs in non-dermal spaces such as the subcutaneous layer. No cases have been reported in the axilla, and imaging findings of this rare entity have not been described in the literature so far. We present a case of sclerotic fibroma in the deep subcutaneous fat layer of the axilla and describe its ultrasound and computed tomography imaging features.