File:Melanosis coli low mag.jpg
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Summary[edit]
| Summary | |
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| Description | Low magnification micrograph of melanosis coli (MC), also pseudomelanosis coli (PMC). Colonic biopsy. HPS stain.
Melanosis coli is a misnomer, as the pigmentation is due to lipofuscin-laden macrophages - not melanin pigment. Pseudomelanosis coli is a more appropriate descriptor, but not in common usage. The differential diagnosis of brown pigmentation of the colon is: Pseudomelanosis coli. Hemosiderin-laden macrophages (old haemorrhage). Melanin (rare). PMC is predominantly seen in the cecum and right colon (ascending colon) and associated with anthracene laxative use such as senna (Senokot). Related images
Low mag.
Intermed. mag.
High mag.
High mag.
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| Source | Wikimedia Commons file page |
| Author | Nephron |
| Permission | See original Commons license details. |
Licensing[edit]
Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 license.
Official license: CC BY-SA 3.0
License page: CC BY-SA 3.0
Original attribution and file history: Wikimedia Commons
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:32, 8 June 2026 | | 3,432 × 1,676 (680 KB) | Maintenance script (talk | contribs) | == Summary == Importing file |
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