We bring you the SonoSim Ultrasound Challenge! Can you give us the correct answer?
This 20-year-old female presents with one day of progressive increased frequency of urination and dysuria. Vital signs are normal, no fever is noted. Using ultrasound, what is the most likely diagnosis?
Findings: Normal bladder anatomy; Female; Mildly distended bladder; Physiologic free fluid in posterior culdesac