PMC8114277_01
(A) Voluminous para aortic and retro peritoneum lymphadenopathy (arrowhead). (B) No visible bone lesion on the CT scan that could motivate a biopsy.
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A whole body computerized tomography (CT)-scan showed para aortic and retro peritoneal lymphadenopathy with no other abnormalities (Figure 1) suggesting a secondary lymphatic node localization or lymphoma.
18F-fludeoxyglucose positron-emission tomography: (A) Uptake in adenopathy (arrow), (B) diffuse and non-specific uptake on iliac bone (arrowhead).
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A 18F-fludeoxyglucose positron-emission tomography showed a nodular uptake in adenopathy and a diffuse non-specific uptake in iliac bone (Figure 2).
(A and B) T1 contrast sequence with fat suppression: multiple polymorphic lesions of the pelvic bone structure, involving the iliac spine (arrow) and sacroiliac joint (arrowhead). The cortical bone is continuous, suggesting a benign, granulomatous origin. (C and D) Diffusion weighted sequence shows their active character on the iliac bone (arrow) and sacroiliac joint (arrowhead).
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Few epithelioid cells (arrow) (A) associated with granuloma and lymphoid cells (arrowhead) (B).
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