J Korean Radiol Soc.  1994 Feb;30(2):309-312.

Squamous Cell Carcinoma Arising in the Wall of Epidermoid Cyst of Axilla: A case report

• Cho SY
• Choi CS
• Lee ES
• Cho HC
• Kwack EY
• Kim HH
• Kang IW

Abstract

PURPOSE
Epidormoid cysts are benign epithelial cysts often ocurring within the skin of face and trunk. But carcinomatous change is rare. The authors experienced a case of squamous cell carcinoma arising from the wall of epidermoid cyst of axilla and report the radiologic and pathologic findings with a brief review of the literatures.
METHODS
AND MATERIALS: Plain chest radiograph, US and enhanced CT of axilla were takened. We analyzed radiologic findings of squamous cell carcinoma in the wall of epidermoid cyst of axilla and correlated with pathologic findings.
RESULTS
Plain chest radiograph revealed a huge axiilary mass without bony destruction or calcification. showed a heterogenous hyperechoic mass with eccentrical cystic lesion. Outer margin of the mass was irregular. No posterior acoustic enhancement was seen. Postcontrast CT scan showed a circumscribed complex mass with irregular enhancing rim. During operation mass was located within subcutaneous layer and internal contents of the mass were brown, necrotic keratinous debries.
CONCLUSION
Differentiation from solid tumor was difficult. But intradermal or subcutaneous location and rapid growing were characteristic.

MeSH Terms

Acoustics
Axilla*
Carcinoma, Squamous Cell*
Epidermal Cyst*
Radiography, Thoracic
Skin
Tomography, X-Ray Computed