PMC8519585_01
Histopathology of affected lymph node of case 1 (A,B): Patchy circumscribed areas with eosinophilic fibrinoid necrosis in the paracortex and cortex and absence of granulocytes in the areas of necrosis are shown. A variety of cells surround the necrotic area, and a large number of apoptotic cell fragments exist outside the cells.
fped-09-727411-g0001.jpg
PMC8519585_01_fped-09-727411-g0001.jpg
F1
He underwent lymph node biopsy, which revealed a large classic necrotic focus and proliferation of surrounding tissue cells suggestive of KFD (Figure 1).
PMC8519585_02
Magnetic resonance imaging (MRI) of case 2 (A-C) shows a wide range of abnormal signals in both hemispheres and basal ganglia region before pulse therapy. Follow-up brain MRI (D-F) after 15 days shows normal results.
fped-09-727411-g0002.jpg
PMC8519585_02_fped-09-727411-g0002.jpg
F2
MRI showed abnormal signals in both cerebral hemispheres and the basal ganglia region (Figure 2). Follow-up cranial MRI was normal (Figure 2).
PMC8519585_03