A splenic hydatid cyst case presented with lumbar pain.

A splenic hydatid cyst is a rare clinical entity from among abdominal hydatid cysts, even in endemic countries. Here, a case with lumbar pain due to a giant splenic hydatid cyst is presented. The importance of this case is that the patient presented at the clinic with only lumbar pain. Initial direct abdominal plain radiography showed a giant abdominal calcification in the spleen and further examinations revealed involvement of three organs: spleen, lung, and liver.