顎下部に生じた非脂腺型リンパ腺腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 65; no. 8; pp. 523 - 528
• Main Authors: 田中, 陽一, 竹川, 政範, 末次, 博, 先川, 信
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.08.2019
• Subjects: 非脂腺型リンパ腺腫; 顎下部
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.65.523

Non-sebaceous lymphadenoma (NSL) is a rare benign salivary gland tumor that is difficult to diagnose preoperatively on the basis of clinical features. We report a case of NSL arising in the left submandibular region in a 66-year-old woman. The patient had complained of a painless mass in the left submandibular region. Her medical history included a left parotidectomy for adenoid cystic carcinoma (ACC) 22 years ago. Computed tomography showed an enhanced mass with the inside low-density at the distal part of the submandibular gland and no residual parotid gland. On the basis of these findings, lymph node metastasis from ACC or a submandibular gland tumor was suspected. The mass was removed with the left submandibular gland under general anesthesia. Histopathologically, the mass was diagnosed as a NSL. There has been no sign of recurrence as of 2 years after the operation.