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  • Title: Hyalinizing clear cell carcinoma of the base of tongue: a distinct and rare entity.
    Author: Masilamani S, Rao S, Chirakkal P, Kumar AR.
    Journal: Indian J Pathol Microbiol; 2011; 54(1):167-9. PubMed ID: 21393908.
    Abstract:
    Hyalinizing clear cell carcinoma (HCCC) of tongue is a rare neoplasm originating from minor salivary glands. We present a case of HCCC involving the base of tongue, in a 73-year-old male, clinically diagnosed as fibroma. Laser excision of the mass was done. Histopathological examination showed an infiltrating lesion composed predominantly of clear cells. The differential diagnosis included other salivary gland lesions having a clear cell component and metastatic clear cell renal carcinoma. Immunohistochemistry was useful in ruling out these lesions exhibiting clear cell component from clear cell carcinoma. Imaging studies revealed no lesion in either kidney. Since, HCCC has a better prognosis and the adequate treatment is wide excision, it needs to be differentiated from other carcinomas with clear cells. No further therapy was given to the patient. One year after the surgery, the patient is symptom free without local recurrence and on regular follow up.
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