Vol.102 No.11 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 102 No. 11 November 2009
Two Cases of Salivary Duct Cyst of the Parotid Gland
Hisashi Ohtsuka, Kirito Shimamoto, Masamichi Suzuki, Kazuharu Yamazaki,
Ken Ishijima, Tamotsu Sugai and Hiroaki Sato
(Iwate Medical University)
Koji Nishimura
(Kyoto University)
Salivary duct cyst (SDCy) is more frequent in Europe than in Japan, where the incidence is reported to be 0.5％ of all salivary gland cysts. We report two such cases. Case 1: A 62-year-old woman seen for right throat pain starting at the end of 2006, was found in magnetic resonance imaging (MRI) to have a large cystic mass in the right parapharyngeal space. Surgery yielded a pathological diagnosis of SDCy. SDCy of the parapharyngeal space has not been previously reported to our knowledge. Case 2: A 60-year-old woman with left neck discomfort was found in MRI to have a dumbbell-shaped mass spanning the superficial and deep parotid gland lobe. Superficial parotidectomy yielded a pathological diagnosis of SDCy. We observed no malignancy in either case, although SDCy may arise from malignant tumors such as adenoid cystic carcinoma or mucoepidermoid carcinoma.
Key words :salivary duct cyst, parapharyngeal space, case report