Subacute sensory neuronopathy and gastrointestinal pseudoobstruction are considered classical paraneoplastic neurologicalsyndromes. We report a 56-year-old male who presented with typical symptoms of subacute sensory neuronopathy andautonomic neuropathy with gastrointestinal pseudoobstruction. The biopsy of the palpable supraclavicular lymph noderevealed a small cell lung cancer. To our knowledge, intestinal pseudoobstruction and sensory neuronopathy in a small celllung cancer have not been reported in Korea.
