TTP following ITP in an HIV-positive boy.
OBJECTIVE
To report the previously undescribed development of thrombotic thrombocytopenic purpura (TTP) in a human immunodeficiency virus (HIV)-positive child and discuss the differential diagnosis.


METHODS
Our patient was a 9-year-old boy with vertically acquired HIV infection and a previous history of immune thrombocytopenic purpura (ITP). Initial presentation, difficulty in diagnosis, clinical course, and subsequent outcome are described.


RESULTS
Rapid resolution of TTP following plasmapheresis was seen.


CONCLUSIONS
Recognition of this treatable though potentially fatal complication in severely ill HIV-infected children requires a high degree of suspicion in view of its diverse clinical manifestations. The long-term outcome may be relatively good.
Pediatric Hematology-Oncology Department, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
V K
VK
Prasad
I K
IK
Kim
K
K
Farrington
J B
JB
Bussel
D002648:Child; D015658:HIV Infections / Q000150:complications*; D006801:Humans; D008297:Male; D016553:Purpura, Thrombocytopenic, Idiopathic / Q000150:complications / Q000209:etiology*; D011697:Purpura, Thrombotic Thrombocytopenic / Q000209:etiology*