Endosocopic abnormalities in a Japanese patient with collagenous colitis

Protein-losing Enteropathy Associated with Collagenous Colitis Cured by Withdrawal of a Proton Pump Inhibitor

“…On the other hand, endoscopy indicated an uneven fine granular surface texture and a crowded tortuous vasculature in our patient, findings that were considered specific to CC (9). Recent advancements in endoscopic and diagnostic technologies have led to the identification of minimal mucosal abnormalities and specific longitudinal linear lacerations of the mucosa that are characteristic of CC.…”

Collagenous colitis presenting with skip lesions mimicking Crohn's disease and complicated by intestinal obstruction

“…reported recently that in half of their cohort with lymphocytic colitis mucosal lesions were found during colonoscopy . Other investigators have also found macroscopic lesions such as longitudinal ulcers, hypervascularity or exudative bleeding during colonoscopy in patients with collagenous colitis …”

“…2 Other investigators have also found macroscopic lesions such as longitudinal ulcers, hypervascularity or exudative bleeding during colonoscopy in patients with collagenous colitis. 3,4 Another classically held view on microscopic colitis is that it is usually benign and will not lead to systemic upset or complication. [5][6][7] However, this view seems to be changing as there have been recent reports of collagenous colitis and lymphocytic colitis resulting in colonic perforation, impairing patients' health-related quality of life or developing mass in the terminal ileum.…”

Colonic mucosal tears in collagenous colitis

“…Generally, the colonic mucosa in CC is macroscopically normal, although minor, non-specific abnormalities such as patchy oedema, an abnormal vascular pattern or erythema may be found in up to 30% of patients [4,5]. Chromoendoscopy by vital staining with indigo carmine may furthermore reveal an uneven and coarse surface with a different staining pattern compared with that of normal mucosa [6,7].…”