An 85-year-old man presents with complaints of per rectal bleeding, diarrhea and abdominal pain. Subsequently, he underwent contrast-enhanced CT abdomen which showed findings consistent with ischemic colitis. Which of the following is NOT usually seen in ischemic colitis?

A 10-year-old boy presents with a history of abdominal pain and constipation. A contrast-enhanced CT of the abdomen and pelvis was acquired. A single CT coronal image is provided. The boy is at risk of developing which of the following conditions?

A 20-year-old female presents with right flank pain and a high-grade fever. A selected image from a CTU is shown. What is the most likely diagnosis?

What is the most common cause of incisional hernia?

All of the following regarding point of care ultrasound (POCUS) to guide NG tube insertion are true EXCEPT...

A 5-month-old neonate was brought into the emergency department by his parents with complaints of vomiting, bloody stool, and periodical crying. An urgent ultrasound abdomen was performed. Transverse and longitudinal ultrasound images are provided. What is the most likely diagnosis?

A 6-year-old child presented with complaints of repeated bouts of vomiting. A single spot image from a barium meal examination is provided. What is the most likely diagnosis?

A 2-month-old neonate presents with abdominal distension and blood stained vomitus. His x-ray abdomen frontal view is presented. Which of the following is NOT a risk factor for this condition?

A newborn baby boy presented with bilious vomiting and abdominal distension. His frontal radiograph is shown. All of the following are possible causes of this appearance EXCEPT... 

A patient with untreated HIV (human immunodeficiency virus) infection in a developed country presents with altered mental status. Neuroimaging reveals multiple brain lesions associated with edema, contrast enhancement, and mass effect. What are the two most likely possibilities in the differential diagnosis?

Which animals lend their name to this imaging sign?

What is the correct term for this peripancreatic collection?

Low attenuation wall thickening of the stomach is most indicative of which diagnosis?

A 12-year-old boy presents with reduced visual acuity and during workup has an MRI. The right optic nerve is expanded all the way back to the chiasm which is also enlarged. Given the likely diagnosis, what is the most likely underlying condition?

This image is from day 1 of a colonic transit study, with ingestion of 20 markers. How many markers on the day 5 x-ray would indicate normal colonic transit?

What does a reduction in receiver bandwidth cause?

What is the best imaging modality for diagnosing gallbladder agenesis and characterizing ectopic gallbladder?

A 50-year-old male presented to the emergency department with complaints of absolute constipation and diffuse abdominal pain. He underwent x-ray abdomen in the ER which raised suspicion for sigmoid volvulus. Subsequently, a Gastrografin enema examination was performed - spot image shown.

Which of the following signs of sigmoid volvulus is shown on the provided image?

Which imaging feature is crucial for diagnosing gallbladder agenesis?

What condition is associated with isolated gastric varices?