A case of pneumatosis cystoides intestinalis

Abstract

We report a case of a woman in her sixties whose fecal immunochemical testing results were positive during a physical examination. She had been previously diagnosed with chronic gastritis and taking Rikkunshi-Tou. Colonoscopy revealed multiple cystic nodular lesions, with mucosal hyperemia and erosions in the ascending colon. Prior to nodular lesion removal, we attempted to lift the lesion from the submucosal layer by saline injection until saline spouted from top of the lesion. Next, we snared and partially dissected the lesion. Histopathological finding revealed inflammatory cell infiltration and increased capillary vessels. Furthermore, we dissected the cystic nodular lesion and a hollowed-out cystic wall was visible. Histopathological finding revealed inflammatory cell infiltration but the presence of a cystic wall could not be confirmed. Abdominal CT revealed multiple grape-like gas clusters in the ascending colon. The patient is being followed up regularly.