PMC4750320_01
Magnetic resonance imaging of brain plain T2-weighted sequence showing hyperintense signal in (a) dorsal midbrain (b) dorsal pons
JNRP-7-157-g001.jpg
PMC4750320_01_JNRP-7-157-g001.jpg
F1
Magnetic resonance imaging of brain plain and contrast showed altered signal intensity which was hyperintense on T2-weighted [Figure 1] and fluid-attenuated inversion recovery sequences without any postcontrast enhancement in dorsal pons and midbrain [Figure 2].
Magnetic resonance imaging of brain (a) fluid attenuated inversion recovery sequences showing hyperintense signal in dorsal pons (b) no postcontrast enhancement in dorsal pons
JNRP-7-157-g002.jpg
PMC4750320_01_JNRP-7-157-g002.jpg
F2
Magnetic resonance imaging of brain plain and contrast showed altered signal intensity which was hyperintense on T2-weighted [Figure 1] and fluid-attenuated inversion recovery sequences without any postcontrast enhancement in dorsal pons and midbrain [Figure 2].
Papanicolaou staining x20 of cervical lymph node fine-needle aspiration cytology showing lymphocytes, macrophages, foci of necrosis (shaded arrow), and macrophage engulfing karyorrhectic debris (open arrow) which is characteristic of Kikuchi-Fujimoto disease
JNRP-7-157-g003.jpg
PMC4750320_01_JNRP-7-157-g003.jpg
F3
Cervical lymph node fine-needle aspiration cytology was done which showed lymphocytes, sinus histiocytes, endocapillary buds, monocytoid cells, necrosis, karyorrhectic debris, and nodal reticulum suggestive of Kikuchi-Fujimoto disease [Figure 3].
Positron emission tomography/computed tomography of brain showed increased focal uptake of tracer in (a) left frontal lobe, anteriosuperior to anterior cingulate gyrus (b) left frontal and left temporal lobe
JNRP-7-157-g004.jpg
PMC4750320_01_JNRP-7-157-g004.jpg
F4
Positron emission tomography (PET) computed tomography brain showed increased focal uptake of tracer in the left frontal lobe, anteriosuperior to anterior cingulate gyrus [Figure 4].
Magnetic resonance imaging of brain (a) T2-weighted sequence, (b) fluid-attenuated inversion recovery sequence showing complete resolution of hyperintensities
JNRP-7-157-g005.jpg
PMC4750320_01_JNRP-7-157-g005.jpg
F5
Magnetic resonance imaging brain done after 1 month of treatment showed complete resolution of lesions in midbrain and pons [Figure 5].