Sections from the perforated areas show ulceration of small intestinal mucosa with related transmural infiltration by lymphocytes, plasma cells, macrophages, and neutrophils reaching to the serosal covering, with related vascular congestion. No evidence of specific granulomas. No evidence of malignancy.
The patient presented with peritonitis secondary to a perforated viscus, identified as multiple jejunal perforations.
Small intestinal fragments collectively measured 5.5x4.5x0.7 cm, the largest measured 3x2x0.7 cm.
Multiple jejunal biopsies: