title: Carcinoid tumor in retinitis pigmentosa.
abstract: A carcinoid tumor was discovered by chance in a 25-year-old woman with the dominant type of retinitis pigmentosa. Although a coincidental association cannot be ruled out, there is at least a possibility that the two diseases have a common embryologic origin.
mesh_terms: D000328:Adult; D001063:Appendiceal Neoplasms / Q000150:complications* / Q000196:embryology; D002276:Carcinoid Tumor / Q000150:complications* / Q000196:embryology; D004759:Enterochromaffin Cells; D005260:Female; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000652:urine; D012174:Retinitis Pigmentosa / Q000150:complications* / Q000196:embryology
chemical_list: D006897:Hydroxyindoleacetic Acid