RT Journal A1 Savell VH, Parham DM, Jacobs RF T1 PAthological case of the month JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2000 FD March 1 VO 154 IS 3 SP 311 OP 311 DO 10.1001/archpedi.154.3.311 UL http://dx.doi.org/10.1001/archpedi.154.3.311 AB A PREVIOUSLY HEALTHY 5-year-old Hispanic girl presented with a 4-month history of fever and night sweats and a recent onset of abdominal swelling and anorexia. She had traveled to Mexico 13 months previously and had otherwise been living in Texas and Arkansas. She did not have a cough, vomiting, or diarrhea but had a history of consumption of pork and goat's milk. Findings from physical examination were remarkable for hepatosplenomegaly. Findings from a bone marrow examination revealed normal hematopoiesis with scattered ill-defined aggregates of foamy histiocytes (Figure 1). A biopsy of the bone marrow core was performed (Figure 2 and Figure 3). Blood cultures and serologic titers were positive for a bacterial organism.