PMC6778395_01
No lesion was found in the Contrast-enhanced CT and the appendix displayed normal.
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But no lesion was found (Fig. 1).
Colonoscopy showed that blood came from the appendiceal orifice with time. (A) Irrigation washed away the blood. (B) Oozing bright blood puffed at the appendiceal orifice. (C) Repetitive irrigation couldn't clear away the blood. (D) After about 10 seconds, oozing bright blood flowed away from the appendiceal orifice.
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After the blood was washed away, oozing bright blood flowed from the appendiceal orifice immediately (Fig. 2).
The histology of the appendix after surgery. (A) Inflammatory cells infiltrating. (B) A large number of red blood cells could be seen. (C) Ulcer, inflammatory cells and granulomas were visible. (D-F) Scattered noncaseating granulomas could be seen.
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