Abstract
Lung cancer may rarely appear with a solitary rectal metastasis and no other metastases. We report the first case of primary small cell lung cancer presenting with a solitary rectal metastasis in a 62-year-old man. Chest computed tomography revealed a soft tissue lesion in the subcarinal area. Following bronchoscopic biopsy, the patient was diagnosed with small cell lung cancer. The rectal mass was incidentally found during an imaging study for staging work-up. Histological examination revealed that the rectal mass was consistent with metastasis from small cell lung cancer. We suggest that clinicians should consider the possibility of rectal metastasis in small cell lung cancer patients with rectal masses.
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