Article Figures & Data
Figures
- Fig 1.
Right frontal PXA in a 4.5-year-old girl (patient number 5). A, Sagittal T1-weighted image shows multiple cystic components with hyperintense fluid within a cyst. The crescentic hyperintense fluid corresponds to blood on CT, HU = +77 (B). C, Coronal T2-weighted image shows the lateral solid components and focal scalloping of the overlying inner table (arrows). D, Axial FLAIR image shows marked vasogenic edema. E, Gadolinium-enhanced coronal T1-weighted image shows intense enhancement of the lateral solid components. F and G, Axial diffusion-weighted image and ADC map show that the solid component shows reduced diffusion compared with normal brain (ADC ratio = 0.85).
- Fig 2.
Left frontal PXA in a 4.8-year-old boy (patient number 2). A, Preoperative axial FLAIR image shows marked vasogenic edema. B, Preoperative coronal T1-weighted gadolinium-enhanced image shows intense enhancement of the lesion. C, The calculated preoperative ADC ratio was 1.06. D, The mass could not be resected completely because of its proximity to the left middle cerebral artery and showed progression over 4 years. Sagittal gadolinium-enhanced T1-weighted image shows the signal void of a middle cerebral artery branch within the enhancing mass.
- Fig 3.
Left frontal and parietal PXA with anaplastic features in a 6.1-year-old male (patient number 8). A, Preoperative axial gadolinium-enhanced T1-weighted image shows a predominantly cystic mass with marked vasogenic edema. B, ADC ratio of the tissue corresponding to the solid enhancing tumor is 0.75.
Tables
Individual patient information on demographics, histology, treatment, and outcome
Patient No. Age (y)/Sex Diagnosis ADC Value (×10−6 mm2/s) ADC Ratio Treatment F/U (y) Treatment Response TTP (y) F/U Results 1 4.7/F PXA XRT/Chemo 14.8 PD 8.6 Alive 2 4.8/M PXA 838 1.06 Sx (3)/XRT 5.0 PD 2.7 Alive 3 7.1/F Anap. PXA Sx (2)/XRT/Chemo 0.5 PD 0.2 Died 4 9.3/F PXA 928 1.24 Sx 7.7 CR n/a Alive 5 4.5/F PXA 668 0.85 Sx Lost to F/U 6 6.9/M PXA 1189 1.47 Sx (3) 9.6 PD 3.8 Alive 7 16.1/M PXA 889 1.28 Sx 3.4 CR n/a Alive 8 6.1/M Anap. PXA 825 0.75 Sx/XRT/Chemo 4.0 CR n/a Alive 9 11.6/M PXA 762 1.32 Sx Lost to F/U 10 14.0/F PXA Sx/XRT/Chemo 8.2 PD 0.8 Died 11 13.0/M Anap. PXA Sx/XRT/Chemo 2.5 CR n/a Alive Note:—Anap. indicates anaplastic; Chemo, chemotherapy; CR, complete remission; F/U, follow-up; PD, progressive disease; Sx, surgery; XRT, radiotherapy.
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