Situs Inversus Totalis, Polysplenia and Annular Pancreas with Duodenal Obstruction: a Case Report of Bizarre Embryological Conundrum

Situs inversus, polysplenia and annular pancreas are unusual anomalies individually, and are extremely rare in combination. A 3 years old boy presented with failure to thrive and symptoms of chronic upper gastrointestinal obstruction. After adequate radiological investigations, he was explored and managed with a duodeno-duodenostomy. and is doing well on a 1 year follow-up. The preoperative radiological assessment is of paramount importance, so as to avoid any intra-operative surprises.