A rare case of soft tissue sarcoma in the supraclavicular region: A case report

Sarcomas of the head and neck account for about 2% of all head and neck malignancies in adults. The median age at diagnosis is 50–54 years with a slight male predominance. The rarity of these sarcomas and lack of prospective trials make it difficult to reach valid conclusions. A 36‐year‐old woman was referred to our hospital because of an expanding non‐pulsatile mass in the right supraclavicular fossa with associated numbness and paresthesia of the right forearm. The patient reported that the mass had gradually enlarged for the past 5 months. She had no history of trauma or any chronic illnesses. A physical examination revealed a mass measuring approximately 7 cm × 5 cm above the right clavicle with no palpable thrill or bruit. Ultrasound‐guided biopsy was done and the histology report revealed soft tissue cells, fatty cells, and skeletal muscle cells; no tumor cells were identified. Magnetic resonance angiogram studies were made and revealed a highly vascularized supraclavicular mass. Under a multidisciplinary approach, the mass was resected. Head and neck sarcomas are relatively rare tumors and those of the head and neck account for about 2% of all head and neck malignancies and 4%–10% of all sarcomas in adults. The main histologic subtypes are rhabdomyosarcoma, osteosarcoma, chondrosarcoma, and angiosarcoma.