A Case of Alveolar Soft Part Sarcoma in Floor of Mouth Mimicking Ranula / 대한이비인후과학회지

ABSTRACT

Alveolar soft part sarcoma (ASPS) is a rare, aggressive mesenchymal malignancy that comprises of approximately 1% of all soft tissue sarcomas. About 60 cases of ASPS arising in the head and neck have been reported, with most of them occuring in the orbit and tongue. An ASPS found in the mouth floor is extremely rare, with only one single case reported in english literature. Because of its rarity and slow growing feature, it can be misdiagnosed as a benign oral cavity mass or a vascular neoplasm. We herein report a new case of mouth floor ASPS, which mimicked a ranula in a child. In our patient of 12 year-old girl, tumor was located at the floor of mouth. She was successfully treated with surgical excision without adjuvant radiation or chemotherapy.