Which of these features is more characteristic of ileocecal involvement by Crohn's disease than by tuberculosis?
Which of these is the most common fat-containing renal lesion?
What proportion of renal angiomyolipomas are sporadic in origin?
Which of the following features is more typical of Crohn disease than ulcerative colitis?
What is the correct term for this peripancreatic collection?
What is the most frequent indication for emergency non-obstetric surgery in pregnancy?
This is an MRI study of the abdomen and pelvis in a pregnant woman. On this axial gradient echo sequence image, what are the paired right retroperitoneal structures?
Which of the following is a type of a true diverticulum?
A 25-year-old male presents with a 2-week history of acute breathlessness and chest pain. CT thorax with contrast shows a heterogeneous anterior mediastinal mass and multiple lung nodules. Which is the next best step for diagnosis?