Case 165. Lepromatous leprosy (35 y-o M)

　 　 　 　
　 Biopsy from erythematous and scaling nodules on the extremities of a Paraguaian Nisei 　
　 　 　 　

　

 　 Mycobacteria consisting of "globi" are strongly stained with immunostaining for BCG antigens. The antiserum available from DakoCytomation is widely cross-reactive to Mycobacterium species.