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 Indian J Med Microbiol  
 

Figure 2 (A-C): A 17-year-old female was on induction chemotherapy and receiving L-asparaginase when she developed severe headache. The contrast-enhanced CT scan (A) shows an empty delta sign (arrow). The walls of the superior sagittal sinus show enhancement, while the center shows a filling defect. A 10-year-old male presented with headache while receiving induction chemotherapy. Axial plain T1W MRI (B) shows a dilated right lateral sinus (arrow) filled with a hyperintense clot suggestive of thrombosis. The patient also had thrombosis of the superior sagittal sinus; foci of subacute hemorrhage (arrow) seen as oval areas of altered signal intensity on this axial gradient-echo MRI (C)

Figure 2 (A-C): A 17-year-old female was on induction chemotherapy and receiving L-asparaginase when she developed severe headache. The contrast-enhanced CT scan (A) shows an empty delta sign (arrow). The walls of the superior sagittal sinus show enhancement, while the center shows a filling defect. A 10-year-old male presented with headache while receiving induction chemotherapy. Axial plain T1W MRI (B) shows a dilated right lateral sinus (arrow) filled with a hyperintense clot suggestive of thrombosis. The patient also had thrombosis of the superior sagittal sinus; foci of subacute hemorrhage (arrow) seen as oval areas of altered signal intensity on this axial gradient-echo MRI (C)