Figure 1.

A: Rectal GIST: Excrescentand ulcerated rectal masswith stenosis of therectal lumen.B: Rectal GIST with prostatic infiltration: rectal tumour with direct invasion of both adjacent lobules of the prostate. UB: urinary bladder; ADC: prostatic adenocarcinoma; AC: Anal canal; R: rectum; P: prostate.

Macías-García et al. Diagnostic Pathology 2012 7:150   doi:10.1186/1746-1596-7-150
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