Briefly noted: Microscopic colitis is much more frequent in adults than in children; nevertheless, it is often important to exclude. A recent study (B Virine et al. Clin Gastroenterol Hepatol 2020; 18: 2003-2009. Full text: Biopsies From Ascending and Descending Colon Are Sufficient for Diagnosis of Microscopic Colitis) indicates that biopsies can be limited to the ascending and descending colon.
Methods: This was a retrospective study using biopsies from 101 consecutive patients with MC (52 cases of collagenous colitis, 42 cases of lymphocytic colitis, 7 combined cases),
- In this study, microscopic colitis was detected with 100% sensitivity by analyzing biopsy specimens from the ascending and descending colon
My take: The authors note that previous guidelines have suggested taking 8 biopsy specimens. Their findings support taking much fewer biopsies.
Related blog post/related article:
- Can Microscopic Colitis Lead to UC or Crohn’s Disease?
- #NASPGHAN19 Postgraduate Course (Part 5)
- Full text PDF: AGA Microscopic Colitis Guideline: GC Nguyen et al. Gastroenterol 2016; 150: 242-6. Technical review DS Pardi et al. Gastroenterol 2016; 150: 247-74. Patient guide: pg 275.
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