Toddler on a farm with fevers and night sweats

CXR and CT of mycobacterium avium pneumonia
CXR AP (left) shows widening of the mediastinal contour bilaterally which on axial CT with contrast (above right) is seen to be due to confluent bilateral hilar and parahilar and subcarinal lymphadenopathy. Axial CT with contrast of the abdomen (below right) shows confluent mesenteric lymphadenopathy.

The diagnosis was mycobacterium avium pneumonia.