Spleno-hepatic tuberculosis due to Mycobacterium kansasii

A case of tuberculosis of the spleen and liver is described. The organism involved was Mycobacterium kansasii, one of the atypical mycobacteria. The lack of evidence in the literature of primary splenic or hepatic involvement by this organism suggests that it is rare. In this instance it complicated a case of myeloproliferative disease, megakaryocytic myelosis with extra-medullary haemopoiesis, and was not diagnosed until autopsy.