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Subcutaneous fibroadenoma on an arm
The American Journal of Dermatopathology
|April 1, 1985
Summary
A rare subcutaneous fibroadenoma was found on an 18-year-old woman's arm. This breast tissue-like growth highlights the importance of considering fibroadenomas in unusual locations.
Area of Science:
- Dermatology
- Pathology
- Surgical Oncology
Background:
- Fibroadenomas are benign breast tumors typically found in the breast.
- Ectopic breast tissue can occur along the milkline, from the axilla to the groin.
- Subcutaneous neoplasms are often clinically misdiagnosed, commonly as lipomas.
Observation:
- An 18-year-old woman presented with a subcutaneous mass on her arm.
- The mass was initially suspected to be a lipoma based on clinical examination.
- Histopathological examination revealed a fibroadenoma, identical to those found in the breast.
Findings:
- This case presents a rare instance of a subcutaneous fibroadenoma occurring on the arm.
- The neoplasm's location suggests a possible origin in ectopic breast tissue.
- Histological analysis confirmed the lesion as a fibroadenoma, indistinguishable from mammary fibroadenomas.
Implications:
- Dermatologists and dermatopathologists should consider fibroadenomas in the differential diagnosis of subcutaneous arm masses.
- Awareness of ectopic breast tissue and its potential for neoplastic changes is crucial.
- This finding expands the known anatomical distribution of fibroadenomas beyond the breast parenchyma.