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Diagnostic ultrasound ( PDFDrive )

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FIG. 8.55 Contribution of Color Doppler at Transrectal Sonography to Staging and Diagnosis of Rectal Cancer. (A) and (B) T2 rectal

cancer in 58-year-old man. (A) Axial image shows hypoechoic tumor. Destruction of submucosa is evident with involvement of muscularis propria

on right side of image. (B) Color Doppler shows typical hypervascularity. Color demarcates tumor from normal rectal wall on left side of image.

(C) and (D) Small rectal adenocarcinoma originating in adenomatous polyp in 55-year-old man. (C) Axial image shows an isoechoic polypoid mass

with a broad base surrounded by luid within the rectal lumen. Mass involves the submucosal layer only. (D) Color Doppler image shows profuse

vascularity and vascular stalk of the polypoid mass. (E) and (F) tubulovillous adenoma in 58-year-old woman. (E) Axial transvaginal image shows

a mixed-echogenic mass that seems to ill the lumen of the rectum. (F) Color Doppler frequently shows this type of stellate, branching vascularity

in tubulovillous tumors. (With permission from Berton F, Gola G, Wilson S. Perspective on the role of transrectal and transvaginal sonography of

tumors of the rectum and anal canal. AJR Am J Roentgenol. 2008;190[6]:1495-1504. 106 )

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