顎下腺に発症した大きな嚢胞形成を伴う多形性腺腫の1症例

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Pleomorphic adenomas derive from major or minor salivary glands. It appears most preferably in the parotid gland and relatively rare in the submandibular gland. Cyst formation and extensive haemorrhage in the tumors are not common.<BR>Recently, we found pleomorphic adenoma with a large cystic lesion in the left submandibular gland of an 81-year-old woman. An enlargement of the left submandibular lesion had been growing for five years. The tumor showed a firm, nodular, non-tender mass protruding from the submandibular region without palpable cervical or submandibular lymph-nodes. The tumor was excised locally with submandibular gland and adjacent normal tissue under enflurane anesthesia with endotracheal intubation. The removed mass measured 7×3×2cm in size and had a thickened capsule including completely separated two large cysts. Histologically the tumor was diagnosed as pleomorphic adenoma with a large cyst and a haemorrhagic lesion.<BR>Subsequently the patient has been free of recurrence during three years after operation.
社団法人日本口腔外科学会の論文