Monophasic epithelial synovial sarcoma arising in the temporomandibular joint.
Synovial sarcoma is a mesenchymal spindle-cell tumour that occurs infrequently in the head and neck. It originates from unknown stem cells differentiating into mesenchymal and/or epithelial structures. Most synovial sarcomas are biphasic in character, consisting of epithelial and spindle-cell elements. Here is reported a case of monophasic epithelial synovial sarcoma arising in the temporomandibular joint. The tumour was of a predominantly epithelial pattern, although a minute area of sarcomatous cells was found. The primary mode of treatment was wide en-bloc excision. Two years after surgery, the patient died of hepatocellular carcinoma, but there was no evidence of synovial sarcoma recurrence.
Bukawa
H
H
Division of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chiba 260-8677, Japan. bukawah-cuh@umin.ac.jp
Kawabata
A
A
Murano
A
A
Ono
K
K
Ogawara
K
K
Shiiba
M
M
Yokoe
H
H
Uzawa
K
K
Tanzawa
H
H
D000368:Aged; D004848:Epithelium / Q000473:pathology; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D008339:Mandibular Neoplasms / Q000473:pathology* / Q000601:surgery; D013584:Sarcoma, Synovial / Q000473:pathology* / Q000601:surgery; D013704:Temporomandibular Joint / Q000473:pathology* / Q000601:surgery; D013705:Temporomandibular Joint Disorders / Q000473:pathology* / Q000601:surgery