Oncocytic carcinoma of the salivary gland with thymoma: A case report and review of the literature

Primary oncocytic carcinoma of ectopic salivary gland: a unique case

Oncocytic carcinoma of the salivary glands is an extremely rare malignant neoplasm. The parotid is the most frequently involved salivary gland, but tumours in the submandibular gland and minor salivary glands have also been described. It appears that oncocytic carcinoma of an ectopic salivary gland has not been reported so far. The unique case of a 78-year-old male patient diagnosed with oncocytic adenocarcinoma of an ectopic salivary gland is reported here. The patient underwent surgery and adjuvant radiotherapy. The clinical, morphological, and immunohistochemical features of this rare entity are also described.

[A case of oncocytic carcinoma at the base of the tongue with cervical lymph node metastasis and literature review]

Oncocytic carcinoma of tongue is extremely rare. This paper reports a case of malignant transformation from oncocytic adenoma to oncocytic carcinoma. A 29-year-old man complained of pharyngeal bleeding and swallowing obstruction. The tumor at the base of the tongue was surgically removed and the pathological diagnosis was oncocytic adenoma. After 5 years, the patient found a tumor of the right neck and felt pharyngeal bleeding and swallowing obstruction again. The next year, he was treated with surgery, chemotherapy and radiotherapy, and was diagnosed as oncocytic carcinoma with cervical lymph node metastasis. The patient showed no sign of recurrence until 30 months after the second operation, when tumor of tongue was detected by electronic laryngoscope. Surgery, chemotherapy and radioactive seed implantation were adopted again. Up to now, the follow-up data showed no evidence of recurrence.