A 59-year-old woman who had dyspnea and neck swelling for 10 days was admitted to the hospital. Malignant peritoneal mesothelioma was diagnosed previously. According to the clinical findings, and laboratory and pathologic examination, the patient was found to have disseminated venous thrombosis and antiphospholipid syndrome, which is treatment-resistant autoimmune paraneoplastic syndrome.
When a neck mass is seen, neoplasms should be considered in older adults and inflammatory and congenital masses in children and young patients. Although the history, medical examination and additional diagnostic methods provide important information, the exact diagnosis may only be obtained by histopathological examination.
Renal cell carcinomas account for 2-3% of malignant neoplasms in adults. The lung, soft tissues and bone represent the most frequent sites of distant metastasis in renal cell carcinoma. Gastric metastasis is rare. Our case was a 72-year-old man with complaints of fatigue and loss of appetite. In history, he had unergone radical nephrectomy due to renal cell carcinoma in 1993. A polypoid lesion was observed in upper gastrointestinal endoscopy. Histopathology of gastric biopsy specimen was reported as renal cell carcinoma. In English literature, there are 50 cases diagnosed as gastric metastasis from renal cell carcinoma. To date, there are only 4 cases with extremely late gastric metastasis of renal cell carcinoma. Herein, we present a rare case which underwent radical nephrectomy due to renal cell carcinoma and found to have gastric metastasis at 20. year of his follow-up.
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