Parotid Gland Lipoma: An Unusual Entity
CHIRURGIA(2016)
摘要
The occurrence of lipomas in the parotid gland is extremely rare, and impossible to differentiate clinically. A case of this bizarre entity is reported herein, which was treated successfully with superficial parotidectomy. A 57-year-old man with a well-circumscribed, rubbery mass, probably arising horn the right parotid gland was investigated in our hospital initially with ultrasound scan, and finally with MRI-scan. Both imaging modalities implied a benign lipomatous tumor and the patient underwent an uneventful superficial parotidectomy. Although adipose tissue is a natural component of parotid glands, lipomas arising in the gland are very unusual. The entity's incidence is about 1% (0.6-4.4%) of parotid gland mass lesions and history of previous trauma in the area is the most common pathophysiological mechanism described. Tomographic imaging modalities are very accurate in preoperative diagnosis and cosmetic appearance is the usual indication for surgical intervention. Any particular symptoms jeopardize clinically the diagnosis of parotid lipoma. As always, surgical excision should respect the facial nerve and branches.
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关键词
parotid gland, lipoma, superficial parotidectomy
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