Henoch-Schönlein purpura as a clinical presentation of small cell lung cancer.

Although exceptionally, Henoch-Schönlein purpura (HSP) may appear as a paraneoplastic syndrome. We report a patient presenting with HSP. A chest X-ray showed a pulmonary nodule, while biopsy of a transthoracic needle aspiration revealed small cell lung cancer. To the best of our knowledge, HSP as a clinical presentation of small cell lung cancer has not been previously reported.