Articles
Articles are a collaborative effort to provide a single canonical page on all topics relevant to the practice of radiology. As such, articles are written and continuously improved upon by countless contributing members. Our dedicated editors oversee each edit for accuracy and style. Find out more about articles.
535 results found
Article
Patte classification of rotator cuff tendon retraction
The Patte classification describes the amount of supraspinatus tendon retraction in a complete tear of the rotator cuff of the shoulder, and is applied on sequences in the frontal plane 1:
stage 1: proximal stump near the bony insertion
stage 2: proximal stump is at the level of the humeral he...
Article
AO Spine classification of upper cervical injuries
The AO Spine classification of upper cervical injuries is a concise and comprehensive system for categorizing the spectrum of traumatic bony and ligamentous injuries involving the occipital condyles, atlas (C1), or axis (C2).
Usage
The AO Spine upper cervical classification system is relativel...
Article
Three column concept of spinal fractures
The three-column concept of thoracolumbar spinal fractures (of Denis) forms the basis of a number of widely used thoracolumbar spinal fracture classification systems.
Usage
While the three-column concept was initially developed for classification of thoracolumbar spinal fractures, it can also ...
Article
Scheuermann disease
Scheuermann disease, also known as juvenile kyphosis, juvenile discogenic disease 11, or vertebral epiphysitis, is a common condition which results in kyphosis of the thoracic or thoracolumbar spine. The diagnosis is usually made on plain radiograph.
Epidemiology
occurs in ~5% (range 0.4-8%) o...
Article
Ovarian-Adnexal Reporting and Data System (O-RADS)
The Ovarian-Adnexal Imaging Reporting and Data System, (O-RADS), aims to ensure that there are uniform unambiguous sonographic and MRI evaluations of ovarian or other adnexal lesions, accurately assigning each lesion to a risk category of malignancy being present, and which informs the appropria...
Article
Cervical degenerative spondylosis (grading)
Cervical degenerative disease is extremely common. Cervical spondylosis can be graded using a very old but reliable classification devised by Jonas Kellgren et al 1,2. It is based on findings on a lateral cervical spine radiograph although it can also be applied to MRI evaluation of spine.
The ...
Article
Langenskiold classification of Blount disease
The Langenskiold Classification of Blount disease uses age and severity of deformity as grading parameters 1.
Classification
Six stage radiographic classification of infantile tibia vara, which is based on changes observed as the child matured:
stage I: 2-3 years
irregularity of metaphyseal ...
Article
Hunt and Hess grading system
The Hunt and Hess scale describes the clinical severity of subarachnoid hemorrhage resulting from the rupture of an intracerebral aneurysm and is used as a predictor of survival.
grade 1
asymptomatic or minimal headache and slight neck stiffness
70% survival
grade 2
moderate to severe heada...
Article
Crawford classification
The Crawford classification system is used to classify thoracoabdominal aneurysms and has important therapeutic implications. Precise classification of anatomical features allows accurate risk stratification and appropriate operative planning 1,2.
Classification
The system divides thoracoabdo...
Article
Dameron-Lawrence-Botte classification of proximal 5th metatarsal fractures
The Dameron-Lawrence-Botte classification, or Lawrence-Botte classification, is a commonly used system for proximal fifth metatarsal fractures as it has management implications 3.
Classification
Under this system, proximal fifth metatarsal fractures are categorized into one of three anatomic ...
Article
Landells classification of atlas fractures
The Landells (and van Peteghem) classification of fractures of the atlas is one of the commonly used systems to describe C1 vertebral injuries.
Classification
Fractures are classified by their involvement of the C1 anterior arch, posterior arch, and/or lateral mass 1:
type I: confined to eith...
Article
Subaxial cervical spine injury classification
The subaxial cervical spine injury classification (SLIC) system and severity score is a system for cervical spine trauma that helps guide treatment and predicts prognosis.
Classification
Three parameters are assessed, two being radiologic determined and the last being a clinical assessment 1.
...
Article
Tuli classification of occipital condyle fractures
The Tuli classification of occipital condyle fractures is a clinically-oriented system for describing these injuries based on fracture displacement and ligamentous injury. It is newer than the more well-known Anderson and Montesano classification of occipital condyle fractures and allows the inc...
Article
Heidelberg bleeding classification
The Heidelberg bleeding classification categorizes intracranial hemorrhages (hemorrhagic transformation) occurring after ischemic stroke and reperfusion therapy.
Anatomic description
Class 1: hemorrhagic transformation of infarcted brain tissue
1a: HI1: scattered small petechiae, no mass effe...
Article
Elbow instability
Elbow instability refers to an excessive, usually painful, mobility in the elbow joint, most of the time as a result of a prior traumatic event or overuse and maybe also seen in patients with connective tissue disease 1,2.
Diagnosis
The diagnosis of elbow instability can be established with cl...
Article
Breast imaging-reporting and data system (BI-RADS)
BI-RADS (Breast Imaging-Reporting and Data System) is a risk assessment and quality assurance tool developed by American College of Radiology that provides a widely accepted lexicon and reporting schema for imaging of the breast. It applies to mammography, ultrasound, and MRI. This article refle...
Article
Modified Outerbridge grading of chondromalacia
The modified Outerbridge grading of chondromalacia is divided into four grades by MRI, typically using fat-saturated proton density sequences. This grading system was originally devised for arthroscopy initially for assessment of chondromalacia patellae, but then modified and extended for all ch...
Article
Musculoskeletal fibromatoses
Musculoskeletal fibromatoses represent a wide spectrum of fibroblastic and myofibroblastic neoplasms with similar pathologic appearances and variable clinical behavior.
Pathology
They are benign fibrous tissue proliferations characterized by infiltrative growth and a tendency for local recurr...
Article
Kellgren and Lawrence system for classification of osteoarthritis
The Kellgren and Lawrence system is a common method of classifying the severity of osteoarthritis (OA) using five grades.
The original paper 1 graded OA at the following sites and projections:
hands: posteroanterior
cervical spine: lateral
lumbar spine (facet joints only): lateral
hips: an...
Article
Hydrometra
Hydrometra is a descriptive term that refers to a distended uterus filled with clear, non-infected fluid.
See also
hematometra
pyometra
hydrometrocolpos
hydrocolpos
endometrial fluid
Unable to process the form. Check for errors and try again.