case_images: PMC7778187_01
case_images: A) computed tomography (CT) abdominal scan revealing a 4cm nonspecific retroperitoneal, preaortic lesion, between celiac trunk and superior mesenteric artery; B) CT-guided biopsy of the retroperitoneal mass
case_images: PAMJ-37-186-g001.jpg
case_images: PMC7778187_01_PAMJ-37-186-g001.jpg
case_images: F1
case_images: The abdominal CT scan revealed a 4cm nonspecific retroperitoneal, paraaortic lesion, between celiac trunk and superior mesenteric artery, suggestive of neuroendocrine tumor as the first possibility (Figure 1A). After multidisciplinary discussion, it was decided to perform a CT-guided biopsy of the lesion (Figure 1B).
case_images: the (99m) Tc-octreotide Scintigraphy with SPECT/CT showed no evidence of pathological tumor uptake of the retroperitoneal mass
case_images: PAMJ-37-186-g002.jpg
case_images: PMC7778187_01_PAMJ-37-186-g002.jpg
case_images: F2
case_images: The whole-body (99m) Tc-octreotide scintigraphy with SPECT/CT showed a paraaortic abdominal mass, but without evidence of pathological tumor uptake (Figure 2).
case_images: A) image of the microscopy of the biopsy suggestive of microorganisms; B) PAS-stain
case_images: PAMJ-37-186-g003.jpg
case_images: PMC7778187_01_PAMJ-37-186-g003.jpg
case_images: F3
case_images: Microscopic study of the sample demonstrated no atypia but a tissue with fibrosis, collagenization and presence of spongy-looking structures, suggestive of microorganisms (Figure 3).