Abstract

Hyalinizing clear cell adenocarcinoma is a rare tumor originating from minor salivary glands. 48 years old male patient presented with painless swelling on the hard palate. Computerized tomography and magnetic resonance imagination of the maxilla revealed 3 cm by 3 cm sized, heterogenous gadolinium enhancing mass which was originating from the incisive theet gingiva and extending to the bilateral maxillar arch intraorally and to the palatin bone in the nasal cavity. Incisional biopsy report of the mass was hyalinizing adenocarcinoma of the hard palate. In the light of the biopsy result and radiologic examination wide surgical resection and bilateral supraomohyoid neck dissection was performed. Due to low mitotic activity and nuclear pleomorphism it is defined as low grade tumor according to classic adenocarcinoma leading to better prognosis if treated promptly. Given the rarity and lack of reported series, diagnosis and tretament of this tumor was discussed in the light of the literature.

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