case_images: PMC11094741_01
case_images: (A) Cervical lymph node biopsy section: areas of lymphocytic proliferation, apoptotic necrosis, and histiocytes infiltration. (Hematoxylin and Eosin staining). (B) CD68(+) histiocytes visualized on immunohistochemical staining.
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case_images: The lymph node biopsy revealed the paracortical necrosis without hematoxylin bodies, and the immunohistochemistry showed the positive lysozyme and CD68, consistent with KFD (Figure 1).
case_images: Fundus images of both eyes. The optic disc was not swollen in our case and the retrobulbar optic neuritis was considered.
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case_images: Funduscopic examination revealed no significant findings (Figure 2).
case_images: (A) A slight thickening and T2 hyperintense signal of the orbital anterior segments of the both optic nerve. The yellow arrow indicates the slight thickening of the nerve. (B) T2WI of the optic nerve.
case_images: JIR-17-2889-g0003.jpg
case_images: PMC11094741_01_JIR-17-2889-g0003.jpg
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case_images: T2 enhancement of the orbital anterior segments of both optic nerves, consistent with optic neuritis (Figure 3).