Items tagged “cases”
5,524 results found
Article
Lateral trochlear inclination
Lateral trochlear inclination (LTI) is the inclination angle between the femoral trochlea and a posterior condylar tangential line 1.
Usage
The lateral trochlear inclination angle is used in the assessment of trochlear dysplasia, a dysplastic deformity of the distal femur, which is a known ris...
Article
Trochlear depth
Trochlear depth (TD) measures the depth of the trochlear groove in relation to the femoral condyles.
Usage
Trochlear depth is used for the assessment of trochlear dysplasia, a dysplastic deformity of the femoral head, which is a known risk factor for patellofemoral instability 1-6.
A review o...
Article
Trochlear facet asymmetry
Trochlear facet asymmetry (FA) refers to the condition of the medial facet being abnormally small if compared to the lateral facet in trochlear dysplasia 1.
Usage
Facet asymmetry is also used as a measurement in magnet resonance imaging for trochlear dysplasia to make it more objective 1-3, th...
Article
Ventral trochlear prominence
Ventral trochlear prominence (VTP) describes and measures the bony surplus in the anterior femoral surface at the most superior or proximal aspect of the trochlea.
Usage
Ventral trochlear prominence is used for the assessment of trochlear dysplasia, a risk factor for patellofemoral instability...
Article
Tuberculous osteomyelitis
Tuberculous osteomyelitis is one of the rarer musculoskeletal manifestations of tuberculosis.
Epidemiology
Tuberculous osteomyelitis accounts for ~20% of musculoskeletal tuberculosis 5.
Clinical presentation
Patients may present with a painful "cold abscess" with a localized mass/swelling +/...
Article
Tanner-Whitehouse method
The Tanner-Whitehouse (TW) method is a way of assessing the bone age of children. There are several variations of this method, but all use a DP radiograph of the left hand and wrist to assess the relative maturity of the bones of the patient.
The TW2 (Tanner-Whitehouse 2) methods 1:
RUS (radiu...
Article
Traversal of lung fissures
Only a small number of pulmonary diseases are known to directly traverse the lung fissures such that the lung pathology extends from one lobe via the interlobar fissure into an adjacent lobe 1. The finding is most commonly due to primary malignancy, however, some infections are also known to do ...
Article
Parathyroid carcinoma
Parathyroid carcinomas are very rare, and the overwhelming majority of discrete parathyroid gland lesions seen will be parathyroid adenomas. Carcinomas often present with profound hyperparathyroidism, as most of them are functional. Early metastasis is not uncommon. Imaging is important in their...
Article
Patellotrochlear index
Patellotrochlear index is one of the methods to determine patellar height.
Measurement
The patellotrochlear index is measured on a sagittal MR image with the maximal patellar cartilage thickness and the maximal craniocaudal diameter of the patella.
Two measurements are made:
A: the length o...
Article
Soap bubble appearance (differential diagnosis)
Soap bubble appearance describes a multi-loculated bubbly appearance of lesion or structure.
A soap bubble appearance of a bone lesion refers to:
an expansile lytic lesion with internal trabeculations and preserved cortex, usually of benign nature
but may be used to describe more aggressive ...
Article
Prostaglandin-induced cortical hyperostosis in infants with cyanotic congenital heart disease
Prostaglandin-induced cortical hyperostosis in infants is a well-known side-effect from the treatment of cyanotic congenital heart diseases. Prostaglandin-E1 (injectable form), and prostaglandin-E2 (oral form) are E-type prostaglandins (PGE), that are commonly used in newborns with cyanotic cong...
Article
Isolated diffuse ground-glass opacification
Isolated diffuse ground-glass opacification/opacity (GGO) has a relatively well-defined differential diagnosis although this remains broad and clinical correlation, like many respiratory diseases, is key to diagnosis.
Differential diagnosis
Miller et al. have described the following different...
Article
T2 mapping - myocardium
T2 mapping is a magnetic resonance imaging technique used to calculate the T2 times of a certain tissue and display them voxel-vice on a parametric map. It has been used for tissue characterization of the myocardium 1-5 and has been investigated for cartilage 6,7 and other tissues 4.
T2 mapping...
Article
Progressive myoclonic epilepsy
The progressive myoclonic epilepsies form a disparate group of rare severe conditions that are characterized by deteriorating action myoclonus, although other CNS symptoms and signs are often present.
Unverricht–Lundborg disease (EPM1)
Lafora body disease (EPM2)
action myoclonus renal failure...
Article
MRI of the knee (an approach)
Knee MRI is one of the more frequent examinations faced in daily radiological practice. This approach is an example of how to create a radiological report of an MRI knee with coverage of the most common anatomical sites of possible pathology.
Systematic review
A systematic review in the MRI of...
Article
MRI of the shoulder (an approach)
MRI of the shoulder is one of the more frequent examinations faced in daily radiological practice. This approach is an example of how to create a radiological report of an MRI shoulder with coverage of the most common anatomical sites of possible pathology.
Systematic review
A systematic revie...
Article
Color-write priority
Color-write priority is an adjustable setting of color Doppler duplex ultrasound and determines whether a particular pixel on the image displays color or grayscale B-mode information at the moment.
Color-write priority is rarely changed directly during routine ultrasound imaging, even though it...
Article
GM2 gangliosidoses
The GM2 gangliosidoses are a small group of three closely-related rare genetic conditions, all due to a deficiency of beta-hexosaminidase, an enzyme vital for the metabolism of GM2 gangliosides in lysosomes, especially important in the brain. The GM2 gangliosidoses form a subgroup of the lysosom...
Article
MRI of the wrist (an approach)
MRI of the wrist is a fairly frequent examination in musculoskeletal radiology practice and not quite as common in general radiological practice. This approach is an example of how to create a radiological report of an MRI of the wrist with coverage of the most common anatomical sites of possibl...
Article
Venous lake (disambiguation)
The term venous lakes may refer to:
cutaneous venous lakes, often occurring on the lower lip 1
osseous venous lakes occurring in the skull 2
placental (venous) lakes 3
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