Markedly dilated loop of colon with a coffee-bean shape. Its apex points toward the right upper quadrant. Lucency at the right edge of the dilated bowel most likely represent compressed …

May 17, 2019 · The omega sign, named after the Greek letter, is a handy reference for identifying the motor cortex in the brain. The motor cortex is the most posterior part of the frontal lobe. A …

Mar 16, 2018 · This axial T2-weighted magnetic resonance imaging scan of the brain illustrates the Omega sign. The left hemisphere has the Omega sign encircled, while the right cortex has …

Jan 13, 2025 · Sigmoidal hook sign or omega sign is a term sometimes used to denote the appearance of the hand motor area (hand knob), projecting posteriorly from the precentral …

Omega sign: Laryngoscopic view of the epiglottis in a child with laryngomalacia, demonstrating the omega-shaped epiglottis. Original file: …

May 24, 2016 · One potential pitfall of diagnosing epiglottitis on lateral radiography is the reported “omega sign.” This sign describes the appearance of the normal epiglottis if imaged obliquely: …

Sep 29, 2020 · We propose a new sign the “Omega sign” as a possible added clue to the preoperative CT diagnosis of sigmoid mesocolon hernias and more specifically the …

Mar 8, 2025 · Coffee-bean sign à midline crease corresponding to mesenteric root in a greatly distended sigmoid. Sigmoid volvulus – bowel loop points to RUQ; Cecal volvulus – bowel loop …

J Med Imaging Radiat Oncol. 2019 Feb;63 (1):82-83. doi: 10.1111/1754-9485.12848. Epub 2019 Jan 10. 1 Department of Internal Medicine, Saint Vincent Hospital, Worcester, Massachusetts, …

Sep 29, 2020 · This sigmoid colon configuration has a resemblance to the omega sign. We intend to present a new hallmark sign, which may serve as a clue in the identification of internal …