Extract

To the Editor:

An 18 month-old infant with stupor status was admitted to the local hospital in April 2002. Three months earlier, he had presented with occasional mucus and fresh blood in his stool. One week prior to hospital admission, he begun to experience progressively worsening paleness, fatigue, and bloody diarrhea with mucus, and had an episode of tonic-clonic fits of the right arm lasting a few seconds. On hospital admission, a blood analysis revealed the following: hemoglobin concentration, 3.6 mg/dL; platelet count, 748,000/mm3; and C-reactive protein concentration, 2.9 mg/dL. A lumbar puncture was performed, revealing normal cerebral spinal fluid. During a blood transfusion, the child experienced a generalized seizure with loss of consciousness and upward deviation of his eyesight. Computerized axial tomography, magnetic resonance (MR) imaging, and MR angiography scans of the brain revealed bilateral hemorrhagic infarctions of the basal ganglia, and thrombosis of the internal cerebral veins, Galeno's vein, rectum, and left transverse sinus (Fig. 1). Blood flow was preserved in the superior sagittal sinus and the right transverse sinus.

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