Diagnostic Ultrasound - Abdomen and Pelvis

Diverticulitis
(Left) Acute diverticulitis is
shown by hyperemia on color
Doppler US surrounding
hypoechoic diverticulum .
Hyperechoic fat
surrounding diverticulum
reflects acute inflammation.
(Right) Transvaginal
ultrasound shows
hypertrophied muscularis
propria in sigmoid colon
containing diverticula .
Power Doppler demonstrates
significant mural and
pericolonic hyperemia ſt.
Features are consistent with
acute diverticulitis.
Diagnoses: Bowel
(Left) Right-sided diverticulitis
is shown by calipers outlining
hypoechoic diverticulum
arising from the right colon.
There is surrounding
hyperemia on the color
Doppler assessment.
Echogenic fat accentuates
the diverticulum. (Right) Axial
CECT of the same patient
demonstrates right-sided
colonic diverticulitis. The thickwalled
ascending colon
contains multiple diverticula
with surrounding pericolic
fat stranding .
(Left) Acute sigmoid
diverticulitis with pericolonic
abscess is shown by the thickwalled
sigmoid colon ſt
containing multiple
diverticula. Localized fat
stranding st and pericolic
abscess can also be seen.
(Right) Pericolic abscess is
shown by fluid collection
adjacent to the colon
containing highly reflective
echoes, consistent with gas
within a pericolic abscess .
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