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- Title
Recurrent renal cell carcinoma manifesting as a large intrathoracic fibrotic mass: A case report.
- Authors
JI HYUN KIM; JAE HOON JEONG; SUNG-HYUN PARK; JIN SEON JEONG; YOUNG-JOON RYU; SEO-YOUNG SONG
- Abstract
Renal cell carcinomas (RCCs) have a strong tendency to metastasize, and the most common sites are the lungs, bones and liver. Late recurrence is another feature of the RCC, with lesions appearing .10 years after surgical treatment. However, fibrosis has rarely been associated with the disease. The present study reports a case of recurrent RCC that manifested as a fibrotic mass within the thorax. A 48.year.old man presented with dyspnea that had persisted for 3 days. The patient had undergone a right radical nephrectomy for stage II clear cell carcinoma of the kidney 6 years previously. The patient was a current smoker, with a smoking history of 20 pack.years. Chest radiography showed pleural effusion in the right thorax with an egg.sized mass shadow within the right upper lung (RUL) field. Computed tomography (CT) showed a main mass, 7 cm in diameter, within the RUL, with heterogeneous enhancement and multiple nodules of various sizes in the lungs, suggestive of primary lung cancer or metastatic RCC. A CT.guided percutaneous needle aspiration biopsy was obtained from the main mass, but histology revealed dense fibrous tissue without any malignant cells. Positron emission tomography.CT demonstrated an irregular hypermetabolic RUL mass, with a standardized uptake value (SUV) of 5.0, along the right pleura, and small pulmonary nodules (SUV, 2.0). Ultrasound.guided biopsy was attempted for a smaller hypermetabolic pleural nodule and the result was clear cell adenocarcinoma, consistent with the previous renal histology. The present study describes the case, along with a review of the relevant literature.
- Subjects
RENAL cell carcinoma; NEPHRECTOMY; METASTASIS; CANCER relapse; THERAPEUTIC use of ultrasonic imaging; NEEDLE biopsy; DIAGNOSIS; CANCER treatment
- Publication
Oncology Letters, 2016, Vol 11, Issue 6, p3835
- ISSN
1792-1074
- Publication type
Case Study
- DOI
10.3892/ol.2016.4460