Stained colon. Endoscope view of a dark patch (upper right) in the colon,called melanosis coli,caused by prolonged use of laxative drugs to treat constipation. The drugs contained anthracene,a pigment extracted from coal tar. Melanosis coli is usually asymptomatic and harmless | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / DAVID M. MARTIN, MD |
Bildgröße: | 3590 px × 3650 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |