Adrenal Hemorrhage

In this video lecture, we discuss the imaging appearance of adrenal hemorrhage on CT, MRI and ultrasound. Causes of adrenal hemorrhage will also be reviewed. Key points include: 1) On CT scan, adrenal hemorrhage typically appears as a nonenhancing round or oval hyperdense mass with density of 50-90 HU. 2) MRI is the most sensitive and specific modality for diagnosing adrenal hemorrhage. 3) The “high signal intensity rim” rim sign seen on T1-weighted images is characteristic of subacute adrenal hemorrhage. 4) Adrenal hemorrhage may appear solid or cystic on ultrasound depending on the age of hemorrhage. 5) Adrenal hemorrhage is more common in neonates than in children and adults and is the most common adrenal mass in infancy. 6) Trauma is the most common cause and is usually unilateral and right-sided. 7) Atraumatic adrenal hemorrhage is usually unilateral. Website: http://www.radiologistHQ.com Podcast: http://bit.ly/radiologistHQ Facebook:   / radiologistheadquarters   Instagram:   / radiologisthq   Twitter:   / radiologisthq