Ultrasound Pictures “Urinary Retention”

Clinical manifestations Urinary Retention: retention of urine, increasing pain in the lower abdomen
Diagnosis Urinary Retention: history (onset of pain, location of pain, last voiding); urinalysis; sonography; urethral catheter
Sonographic findings Urinary Retention:
x Markedly distended bladder
x The renal pelvis is often dilated and anechoic as a result of bladder tamponade
and reflux
x High-level internal echoes (blood clots) may be seen.

a and c ultrasound cases Urinary retention.
a Strongly distended bladder, tender to pressure, with faint internal echoes
(clotted blood). The patient, taking 300 mg/day of aspirin, presented
clinically with hemorrhagic cystitis.
b Dilated, obstructed, anechoic renal pelvis. c Following bladder irrigation
(to clear blood clots causing bladder tamponade), ultrasound demonstrates
intravesical air (echogenic crescent along the bladder roof). Bright swirling echoes (blood) can be seen during irrigation

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