PMC9880485_01
Enhanced CT images of the abdomen at the time of initial diagnosis show uneven thickening of the terminal ileum wall. Coronal section (A) and transverse section (B, C).
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Abdominal computed tomography (CT) findings showed uneven thickening of the terminal ileum (Figure 1).
Pathological image of surgical specimens. (A) H&E. (B) CD99. (C) Detection of EWSR1 gene disruption by FISH. The probe type: Vysis LSI EWSR1 Probe (LOT 455960). Result of the patient's EWSR1 gene disruption test: positive (count 200 cells, approximately 90% show separation signal). FISH, fluorescence in situ hybridization.
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Molecular assay (FISH) showed positive EWSR1 gene disruption (Figure 2).
The trend of procalcitonin levels was from abnormally elevated initially to nearly normal after surgical resection.
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Stunningly high levels of PCT, which lasted nearly 100 days in the absence of infection, dropped almost a hundredfold after one operation (Figure 3).
Preoperative and postoperative contrast-enhanced MRI of the abdomen. Preoperative (A) coronal and (C) transverse sections. Postoperative (B) coronal and (D) transverse sections.
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After this operation (Figure 4), the patient regularly returned to the hospital for postoperative adjuvant chemotherapy with a two-drug regimen consisting of albumin-bound paclitaxel and gemcitabine.