119,710 results found
Article
Billowing phenomenon
Billowing phenomenon refers to the presence of contrast medium on contrast-enhanced CT outside of graft metal struts, due to the specific construction characteristic typical of the AFX® stent-graft (Endologix, Inc., USA), designed to treat abdominal aortic aneurysms. It has a unique internal sca...
Article
Extradural neural axis compartment
Extradural neural axis compartment (EDNAC) exists from the tip of the coccyx all the way to the back of the globe, and yet it is relatively unknown as a concept. It is bounded externally by the periosteum of the vertebrae and sacrum inferiorly and the skull superiorly, and the visceral (meningea...
Case
Solitary fibrous tumor of the dura
Published
03 Mar 2022
95% complete
MRI
Case
Lumbar discal cyst
Published
20 Sep 2022
78% complete
CT
MRI
Case
Epithelioid sarcoma - forefoot
Published
01 Dec 2022
77% complete
MRI
Article
Right lower lobe collapse
Right lower lobe (RLL) collapse has distinctive features, and is usually relatively easily identified. The smaller overlying heart shadow obscures less lung compared with left lower lobe collapse.
Findings of lower lobe collapse can be grouped together as they are almost identical on both side...
Article
Pituitary stalk interruption syndrome
Pituitary stalk interruption syndrome, also known as pituitary stalk transection syndrome, is a syndrome characterized by an absent or hypoplastic anterior pituitary gland, thin or absent infundibulum, and ectopic posterior pituitary location.
Epidemiology
Pituitary stalk interruption syndrome...
Case
Colon cancer (ultrasound)
Published
12 May 2020
81% complete
CT
Ultrasound
Case
Osteolytic skull metastasis of lung cancer
Published
05 May 2013
89% complete
CT
Case
Breast size asymmetry
Published
01 Dec 2022
75% complete
X-ray
Case
Subchondral insufficiency fracture - femoral head
Published
24 Jul 2020
74% complete
MRI
Case
Subcaspular perirenal hematoma
Published
13 Jan 2024
95% complete
CT
Article
Os odontoideum
Os odontoideum (plural: ossa odontoidea) is an anatomic variant of the odontoid process of C2 and needs to be differentiated from persistent ossiculum terminale and from a type 2 odontoid fracture. It can be associated with atlantoaxial instability.
Although it was originally thought to be a c...
Case
Sacroiliitis - grade I
Published
06 May 2015
44% complete
X-ray
Article
Anderson and Montesano classification of occipital condyle fractures
The Anderson and Montesano classification is a widely used system for describing occipital condyle fractures. It divides injuries into three types based on morphology and mechanism of injury 1-5.
Classification
type I: impacted type occipital condyle fracture
morphology: comminution of the co...
Case
Juvenile nasopharyngeal angiofibroma
Published
10 Nov 2014
89% complete
MRI
Article
Caput medusae sign (developmental venous anomaly)
The caput medusae sign also sometimes known as a palm tree sign refers to developmental venous anomalies of the brain, where a number of veins converge centrally into a single draining vein.
The sign is seen on both CT and MRI when contrast medium is administered. Angiographically the caput me...
Article
Shear wave elastography
Shear wave elastography is a developing variation of ultrasound imaging.
The concept is similar to strain elastography, but instead of using transducer pressure to compare a shift in an ultrasound A-line (thereby measuring changes in strain), a higher intensity pulse is transmitted to produce s...
Case
Plantaris tendon tear
Published
30 Nov 2018
91% complete
Ultrasound
Case
Aberrant right subclavian artery
Published
18 Apr 2017
95% complete
CT
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