Two Cases of Pneumatosis Cystoides Intestinalis With Intraperitoneal Free Air

Kensuke Wada, Nobuhiro Takeuchi, Masakazu Emori, Masanori Takada, Yusuke Nomura, Akihito Otsuka


Intraperitoneal free air (IFA) is sometimes accompanied by pneumatosis cystoides intestinalis (PCI); therefore, proper diagnosis is essential for PCI management. We report two cases of PCI with IFA. A 70-year-old female taking anti-psychotic medication for schizophrenia presented with repeated vomiting and high-grade fever. Computed tomography revealed small, linear gaseous cysts in the intestinal wall along with IFA. Although there was no sign of peritoneal irritation, intestinal perforation was not excluded. Thus, exploratory laparotomy was performed; it revealed no ascites or perforated sites in the intestine, and revealed numerous small air bubbles in the intestinal wall and mesentery. Thus, a diagnosis of PCI was made, and ileostomy was performed to relieve intestinal pressure. The postoperative course was uneventful. A 79-year-old male with pulmonary emphysema presented with dyspnea due to abdominal distention. Cyanosis was evident, and arterial blood gas analysis revealed metabolic acidosis. CT revealed massive IFA along with multiple, small bubbly cysts under the intestinal serosa. He was intubated because of worsening respiratory conditions, and a 12-French drain was inserted to relieve the intraperitoneal pressure. There was no evidence of peritonitis, and IFA was conservatively observed.

Gastroenterol Res. 2017;10(3):208-211


Pneumatosis cystoides intestinalis; Intraperitoneal free air

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