pneumatosis coli


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pneu·ma·to·sis co·li

a usually benign condition in which gas is seen radiographically in the wall of the colon; sometimes associated with obstructive lung disease.
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Signs of CCP include rectal bleeding, mucorrhea, diarrhea, and colonic obstruction, similar to other associated disorders.[sup][3] CCP is associated with a variety of ulcerating diseases including inflammatory bowel disease (ulcerative colitis [UC] and Crohn's disease), infectious colitis, rectal prolapse, solitary rectal ulcer, and diverticulitis, among others.[sup][4],[5],[6] CCP can resemble adenoma, adenocarcinoma, lipoma, endometriosis, neurofibroma, pseudopolyps, and pneumatosis coli.[sup][7] However, the etiology of CCP is not yet well-defined.
Pneumatosis cystoides intestinalis (PCI), also termed pneumatosis intestinalis, pneumatosis coli (when occurring in colon only), and several other uncommon names in the literature, is a rare condition characterized by multiple gas-filled cystic spaces within the bowel wall.
The present study started with the first author's incidental finding (in case 1) that a condensed podoplanin-immunopositive linear structure was seen around the cystic spaces of pneumatosis coli and superficially resembled the adjacent lymphatic spaces.