USMLE-STEP-3 Web TestEngine demo

patient with carcinoid tumor localized to the appendix

patient with carcinoid tumor of the small intestine and a 3-cm nodule in the liver seen on CT scan

patient with an apple core lesion seen on barium enema

patient with adrenal mass and elevated levels of urinary vanillylmandelic acid(VMA)

patient with a retroperitoneal carcinoid tumor