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What is A neonate presented with fever, lethargy, abdominal distension, vomiting and constipation. Clinically he was diagnosed as volvulus neonatarum with suspected perforation. Best investigation would be: and explain in detail?
In a case of suspected perforation plain x-ray should be performed. It shows free air under the diaphragm and confirms the diagnosis of perforation. Ref: Jones' Clinical Paediatric Surgery : Diagnosis and Management By Peter G. Jones, John M. Hutson, Alan A Woodward, Page 40; Walker's Pediatric Gastrointestinal Disease : Physiology, Diagnosis By W. Allan Walker, Volume 2, Page 1420