A rare cause of acute abdomen: torsion of a second spleen

Congenital abnormalities of the spleen are not uncommon. Commonest abnormality is the occurrence of accessory spleens (splenunculi). However the presence of a second spleen is very rare. While the size and shape of an accessory spleen can vary markedly, a second spleen is almost identical to the normal spleen morphologically. Torsion in a second spleen is a rare clinical entity and its diagnosis is very difficult. It is due to abnormal anatomical position with a long pedicle and absence or laxity of suspensory ligaments compared to the normal spleen [1].