References

1. Williams NMA, Watkin DFL. Spontaneous pneumoperitoneum and other nonsurgical causes of intraperitoneal free gas. Postgrad Med J. 1997; 73(863): 531 – 537. PubMed | Google Scholar


2. Michail Pitiakoudis, Petros Zezos, Anastasia Oikonomou, Michail Kirmanidis, Georgios Kouklakis, Constantinos Simopoulos. Spontaneous idiopathic pneumoperitoneum presenting as an acute abdomen:a case report. Journal of Medical Case Reports. 2011; 5(86): 1-4. PubMed | Google Scholar


3. Oliver Mc Laren. Spontaneous idiopathic recurrent pneumoperitoneum. J Surg Case Rep. 2013 Aug; 2013(8): rjt071. PubMed | Google Scholar


4. Nidal Iflazoglu, Oruc Numan Gokce, Mefkure Mine Kivrak, Betul Kocamer. Spontaneous idiopathic pneumoperitoneum with acute Abdomen. Ulus Cerrahi Derg. 2015; 31(2): 110-112. PubMed | Google Scholar


5. Stapakis JC, Thickman D. Diagnosis of pneumoperitoneum: abdominal CT vs upright chest film. J Comput Assist Tomogr. 1992; 16(5): 713-716. PubMed | Google Scholar


6. Ng CS, Watson CJ, Palmer CR, See TC, Beharry NA, Housden BA et al. Evaluation of early abdominopelvic computed tomography in patients with acute abdominal pain of unknown cause: prospective randomised study. BMJ. 2002; 325(7377): 1387. PubMed | Google Scholar


7. Ryo Tanaka Hitoshi Kameyama, Masayuki Nagahashi, Tatsuo Kanda, Hiroshi Ichikawa, Takaaki Hanyu,Takashi Ishikawa, Takashi Kobayashi, Jun Sakata, Shin-ichi Kosugi and Toshifumi Wakai. Conservative treatment of idiopathic spontaneous pneumoperitoneum in a bedridden patient: a case report . Surg Case Rep. 2015 Dec; 1: 69. PubMed | Google Scholar