Case report and review: A rare case of sarcomatoid renal cell carcinoma manifesting with supraclavicular lymph node metastasis

Abstract

Sarcomatoid renal cell carcinoma (SRCC) is a highly aggressive form of dedifferentiated renal cell carcinoma. We report a 65-year-old man who presented to the emergency department with respiratory symptoms, obstructive jaundice with deranged liver function tests and raised inflammatory marker. General physical examination showed a swelling in left supraclavicular region. The initial differential diagnosis was pancreatic cancer, bronchogenic carcinoma, gastric cancer and lymphoma. Computer tomography (CT) scan showed a solid right renal lesion, multiple liver metastases, florid chest, lymphadenopathy in left supraclavicular region and a right adrenal mass. Patient had biopsy of left supraclavicular node which diagnosed it as a metastatic high grade sarcomatoid renal cell carcinoma. We present the findings and a brief review.