PMC5985755_01
A submucosal protuberance in the transverse colon. Supplied by Dr Pascale Levine.
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figure1
In November 2013, abdominal discomfort led to a colonoscopy with the finding of a submucosal protuberance in the transverse colon (Figure 1); biopsy was consistent with a poorly differentiated carcinoma and immunohistochemical features of a high-grade serous malignancy of likely gynaecologic origin.