Top 3 Differentials in Gastrointestinal Imaging: A Case Review by renowned radiologist Rocky C. Saenz and esteemed colleagues is one in a series of radiology case books mirroring the highly acclaimed O'Brien classic, Top 3 Differentials in Radiology. The book is organized into five abdominal imaging sections covering hepatobiliary, pancreas and spleen, gastrointestinal (GI) tract, mesentery and vascular, and abdominal wall.Each case is formatted as a two-page unit. The left page features clinical images, succinctly captioned findings, and pertinent clinical history. The right page includes the key imaging gamut, differential diagnoses rank-ordered by the "Top 3," additional diagnostic considerations, and clinical pearls. Each section has multiple differential-based cases and some of them include important "Roentgen Classics" cases with imaging findings characteristic of a single diagnosis.