Items tagged “cases”
5,532 results found
Article
Cloverleaf sign (deep infiltrating endometriosis)
The cloverleaf sign is an MRI sign of deep infiltrating endometriosis described in one case series 1. It is detectable on T2W sequences in sagittal, coronal, and axial planes when at least three organs (uterus, ovaries, rectum, bowel loops, etc.) are brought closer by constrictive adhesions and ...
Article
Hemorrhoids
Hemorrhoids or anal cushions are normal vascular cushions of submucosal tissue present since birth in the anal canal and help in maintaining stool continence 2,6. Symptomatic pathological hemorrhoids occur secondary to raised intra-abdominal pressure 2.
Epidemiology
The prevalence of hemorrhoi...
Article
Axenfeld-Rieger syndrome
Axenfeld-Rieger syndrome is a rare spectrum of disorders with an autosomal dominant pattern of inheritance 6. The syndrome incorporates all of 5:
Axenfeld anomaly: posterior embryotoxon and peripheral irido-corneal adhesions
Rieger anomaly: findings of Axenfeld anomaly along with corectopia (m...
Article
LI-RADS US Surveillance
Liver Imaging Reporting and Data System Ultrasound Surveillance (LI-RADS US Surveillance) is a standardized system with recommendations for imaging technique, interpretation and reporting for surveillance of hepatocellular carcinoma (HCC) using unenhanced ultrasound in patients at high risk for ...
Article
Round ligament varicosities
Round ligament varicosities are dilated and tortuous veins in the round ligament, these are rare although most commonly seen during pregnancy and the postpartum period. They constitute an important differential diagnosis for inguinal masses as to avoid unnecessary surgery and associated complica...
Article
Amnestic syndrome of the subcallosal artery
Amnestic syndrome of the subcallosal artery describes an acute amnestic syndrome secondary to ischemic stroke affecting the subcallosal artery which leads to infarction of the bilateral fornices.
Epidemiology
The exact incidence of amnestic syndrome of the subcallosal artery is not known, but ...
Article
Transient hepatic echogenicity differences
Transient hepatic echogenicity differences (THED) are areas of differential enhancement of the liver parenchyma depicted with contrast-enhanced ultrasound (CEUS) using microbubble intravascular contrast agents. They are equivalent to transient hepatic attenuation differences (THAD) with contrast...
Article
CEUS LI-RADS
The Contrast-enhanced Ultrasound Liver Imaging Reporting and Data System (CEUS LI-RADS) is a standardized classification system, algorithm, and terminology for diagnosing hepatocellular carcinoma (HCC) in high-risk patients using CEUS with blood-pool intravenous contrast agents.
The current ver...
Article
Aortoesophageal fistula
Aortoesophageal (aorto-esophageal) fistulae are pathologic communications between the aorta and esophagus and result in life-threatening upper gastrointestinal hemorrhage. They are fatal in the absence of prompt management.
Epidemiology
Aortoesophageal fistulas are a rare entity that accounts...
Article
5-ALA fluorescence-guided surgery
5-ALA fluorescence-guided surgery is an intraoperative technique that takes advantage of tumor cells accumulating a fluorescent compound to make the location of the tumor more readily apparent. It is primarily used in the resection of high-grade gliomas (e.g. glioblastoma, grade 3 or 4 astrocyto...
Article
Left hemicolectomy
Left hemicolectomy is a surgical procedure in which splenic flexure, descending colon, and a portion of the sigmoid colon are removed for radical treatment of various pathologies affecting the descending colon.
Indications
colon cancer
inflammatory bowel disease
isolated left diverticular di...
Article
Sagittal vertical axis
Sagittal vertical axis/alignment (SVA) is one of the simplest and most widely used methods to assess sagittal balance 1-3.
Measurement
This measurement is performed on lateral standing full-length spine x-rays. A plumb line is drawn vertically from the middle of the C7 vertebral body 1,2 or th...
Unable to process the form. Check for errors and try again.