We present a case of a 57-year-old woman with two rare concomitant diseases; sarcoidosis and collagenous colitis. Patient was admitted to our hospital with the symptoms of watery diarrhea that intermittently lasted for years because of delayed diagnosis. Despite increasing awareness of microscopic colitis, the delayed diagnosis remains an important problem. Diagnosis was quickly confirmed with ...

D uring the past few years, there has been a ‘‘proliferation’’ of terms used for the diagnosis of colitis. This reflects the fact that colitis is a complex condition, but the different terminologies are often a source of disagreement between pathologists and clinicians and, at times, can result in misdiagnosis. ‘‘Microscopic colitis’’, ‘‘indeterminate colitis’’, and ‘‘non-specific colitis’’ are...

We present a 72-year-old male who developed progressive, watery diarrhea despite anti-motility agents. On colonoscopy, the mucosa was inflamed and covered with an exudate. Stool studies for Clostridium difficile and Escherichia coli were negative. Biopsies revealed pseudomembranous collagenous colitis, a rare form of microscopic colitis. His symptoms improved dramatically with budesonide therapy.