Items tagged “variant”

559 results found
Case

Pancake adrenal gland in patient with a right pelvic kidney

Renal Ultrasound
...
 Diagnosis certain
Dr Lee-Anne Slater
Published 19 Oct 2010
69% complete
Ultrasound
Case

Agenesis of the dorsal pancreas

 Diagnosis not applicable
The Radswiki
Published 20 Oct 2010
39% complete
CT
Case

Arcuate uterus

 Diagnosis certain
The Radswiki
Published 20 Oct 2010
59% complete
MRI
Article

Cervical rib

Cervical ribs are supernumerary or accessory ribs arising from the seventh cervical vertebra. They occur in ~0.5% of the population, are usually bilateral, but often asymmetric 2, and are more common in females. Related pathology Although cervical ribs are usually asymptomatic, they are the mo...
Article

Cervical rib

Cervical ribs are supernumerary or accessory ribs arising from the seventh cervical vertebra. They occur in ~0.5% of the population, are usually bilateral, but often asymmetric 2, and are more common in females. Related pathology Although cervical ribs are usually asymptomatic, they are the mo...
Article

Crossed fused renal ectopia

Crossed fused renal ectopia refers to an anomaly where the kidneys are fused and located on the same side of the midline. Epidemiology The estimated incidence is around 1 out of 1000 births 1. There is a recognized male predilection with a 2:1 male to female ratio. More than 90% of crossed ren...
Article

Crossed fused renal ectopia

Crossed fused renal ectopia refers to an anomaly where the kidneys are fused and located on the same side of the midline. Epidemiology The estimated incidence is around 1 out of 1000 births 1. There is a recognized male predilection with a 2:1 male to female ratio. More than 90% of crossed ren...
Article

Vesicourachal diverticulum

Vesicourachal diverticulum is one of the congenital urachal remnant abnormalities. Gross anatomy It is the proximal equivalent of a urachal umbilical sinus, representing a result of the failure of the urachus to close at the urinary bladder, forming an out-pouching of variable length from the ...
Article

Vesicourachal diverticulum

Vesicourachal diverticulum is one of the congenital urachal remnant abnormalities. Gross anatomy It is the proximal equivalent of a urachal umbilical sinus, representing a result of the failure of the urachus to close at the urinary bladder, forming an out-pouching of variable length from the ...
Article

Anomalous course of coronary arteries

Anomalous course of a coronary artery is a type of congenital coronary artery anomaly. It may represent a benign and incidental finding, but rarely it is a malignant course predisposing patients to life-threatening myocardial ischemia or arrhythmias, depending on where the artery runs.  Clinica...
Article

Anomalous course of coronary arteries

Anomalous course of a coronary artery is a type of congenital coronary artery anomaly. It may represent a benign and incidental finding, but rarely it is a malignant course predisposing patients to life-threatening myocardial ischemia or arrhythmias, depending on where the artery runs.  Clinica...
Article

Butterfly vertebra

Butterfly vertebra is a type of vertebral anomaly that results from the failure of fusion of the lateral halves of the vertebral body because of persistent notochordal tissue between them. Pathology Associations anterior spina bifida +/- anterior meningocele can be part of the Alagille syndr...
Article

Butterfly vertebra

Butterfly vertebra is a type of vertebral anomaly that results from the failure of fusion of the lateral halves of the vertebral body because of persistent notochordal tissue between them. Pathology Associations anterior spina bifida +/- anterior meningocele can be part of the Alagille syndr...
Article

Azygos continuation of the inferior vena cava

Azygos continuation of the inferior vena cava (also known as the absence of the hepatic segment of the IVC with azygos continuation) is an uncommon vascular anomaly and is a cause of a dilated azygos vein. Terminology Spelling it "azygous" when referring to the vein is incorrect, regardless of...
Article

Azygos continuation of the inferior vena cava

Azygos continuation of the inferior vena cava (also known as the absence of the hepatic segment of the IVC with azygos continuation) is an uncommon vascular anomaly and is a cause of a dilated azygos vein. Terminology Spelling it "azygous" when referring to the vein is incorrect, regardless of...
Article

Dromedary hump

Dromedary humps are prominent focal bulges on the lateral border of the left kidney. They are normal variants of the renal contour, caused by the splenic impression onto the superolateral left kidney. Dromedary humps are important because they may mimic a renal mass, and as such is considered a...
Article

Ectopic pancreatic tissue

Ectopic pancreatic tissue, also known as heterotopic pancreatic tissue, refers to the presence of pancreatic tissue in the submucosal, muscularis or subserosal layers of the luminal gastrointestinal tract outside the normal confines of the pancreas and lacking any anatomic or vascular connection...
Article

Sternalis muscle

The sternalis muscle is an uncommon anatomic variant of the chest wall musculature and is of uncertain etiology and function. Its importance lies in that it should not be mistaken for a pathological lesion.  Epidemiology Cadaveric studies have shown that the muscle is present in ~5% (range 1-8...
Article

Sternalis muscle

The sternalis muscle is an uncommon anatomic variant of the chest wall musculature and is of uncertain etiology and function. Its importance lies in that it should not be mistaken for a pathological lesion.  Epidemiology Cadaveric studies have shown that the muscle is present in ~5% (range 1-8...
Article

Weigert-Meyer law

The Weigert-Meyer law describes the relationship of the upper and lower renal moieties in duplicated collecting systems to their drainage inferiorly. Weigert-Meyer law With duplex kidney and complete ureteral duplication, the upper renal and lower renal moieties are drained by separate ureters...