Items tagged “stub”
1,310 results found
Article
Talc-induced lung disease
Talc-induced lung disease comprises of a group of pathologies that can occur due to exposure to the mineral talc (hydrated magnesium silicate).
Four types of pulmonary disease secondary to talc exposure have been defined. These are:
talcosilicosis: associated with occupational exposure
talcoa...
Article
Lumbar rib
Lumbar (or 13th) ribs are a rare anatomical variant and represent transitional vertebrae at the thoracolumbar junction with a prevalence of ~1% 1. It presents as an additional rib coming off T13 or L1 (depending on numbering classification) and may be unilateral or bilateral. Lumbar ribs are mos...
Article
Foregut duplication cyst
Foregut duplication cysts are a type of congenital duplication cyst. They are sometimes classified under bronchopulmonary foregut malformations.
Entities classified as foregut duplication cysts include:
bronchogenic cysts
neurenteric cysts
other enteric cysts
esophageal duplication...
Article
Lung architectural distortion
Lung architectural distortion in thoracic radiology refers to a descriptive term give when the normal pulmonary bronchial, vascular, fissural or septal anatomy is disrupted and manifested as loss of smooth course of the fissures, crowding of dilated bronchioles or vessels with angulated course 1...
Article
Pleural carcinomatosis
Pleural carcinomatosis is a descriptive term given to the diffuse and widespread spread of metastatic tumor through to the pleural space. It is reported to most commonly occur with breast, bronchogenic and gastrointestinal adenocarcinomas metastatic involvement 2. An accompanying serosanguinous ...
Article
Fibrotic non-specific interstitial pneumonitis
Fibrotic non-specific interstitial pneumonitis is a histological subtype of non-specific interstitial pneumonitis (NSIP). It is considered the more common form 1. This pattern manifests as chronic interstitial inflammation obscured by interstitial fibrosis (with dense collagen), a temporal homog...
Article
Large rod like breast calcification
Large rod like calcifications are benign calcifications seen within ectatic ducts.
Pathology
Associations
plasma cell mastitis
Radiographic features
>1 mm in diameter
may have lucent centers (if calcium is only in walls of ducts)
branching pattern may be seen
radiation towards the nipple...
Article
Eggshell calcification (breast)
Eggshell calcifications in the breast are benign peripheral rim-like calcifications.
Pathology
They are typically secondary to fat necrosis or calcification of oil cysts.
Radiographic features
thin rim-like calcification (<1 mm in thickness)
lucent centers
small to several centimeters in d...
Article
Pseudocalcifications in the breast
Pseudocalcifications and artifacts in the breast include
gold deposits in lymph nodes from intramuscular gold therapy for rheumatoid arthritis
adhesive tape
deodorant
film-screen artifacts
They should be differentiated from parenchymal calcification. Precautions to be taken are t...
Article
Apophysis
The apophysis is a normal secondary ossification center that is located in the non-weight-bearing part of the bone and eventually fuses with it over time (most of the apophyses fuse during the 2nd decade of life, but this process can be delayed, especially in female athletes). The apophysis is a...
Article
Urinary system
The urinary system consists of the kidneys, ureter, bladder and urethra. With the exception of the urethra, this is the same in both males and females. It spans the abdomen and pelvis, from the upper abdomen to the extreme pelvis, being inextricably linked with the genital system.
The urinary ...
Article
Herringbone artifact
Herringbone artifact, also known as spike artifact, crisscross artifact, or corduroy artifact, is an MRI artifact related to one or few aberrant data point(s) in k-space. In image space, the regularly spaced stripes resemble the appearance of a fabric with a herringbone pattern. The artifact cov...
Article
Paracicatricial emphysema
Paracicatricial emphysema is a morphological sub type of pulmonary emphysema.
Pathology
In this form, emphysematous spaces are seen adjacent to areas of scarring with latter usually caused by silicosis, granulomatous infection, tuberculosis, pneumonia or pulmonary infarction.
Radiographic fe...
Article
Macrocystic honeycombing
Macrocystic honeycombing refers to a morphological subtype of honeycombing seen on HRCT. Many authors consider that the individual lung cysts should be >4 mm in diameter to be classified as macrocystic honeycombing. This form is considered to be more commonly associated with usual interstitial p...
Article
Reverse Bankart lesion
Reverse Bankart lesion is defined as the detachment of posteroinferior labrum with avulsion of posterior capsular periosteum. This leads to laxity of the posterior band of the inferior glenohumeral ligament with posterior displacement of the humeral head.
As is the case with a Bankart lesion, t...
Article
Kim lesion (shoulder)
Kim lesions are superficial tears between the posterior glenoid labrum and glenoid articular cartilage without labral detachment. Failure to identify and treat this lesion may lead to permanent posterior instability.
Pathology
It typically results from a posteroinferiorly directed force on th...
Article
Foramen of Weitbrecht
The foramen of Weitbrecht is a small opening in the glenohumeral joint capsule between superior and middle glenohumeral ligaments and is seen communicating with the subtendinous bursa of the subscapularis muscle.
Article
Foramen of Rouviere
The foramen of Rouviere is a rarely seen space in the shoulder joint capsule between middle and inferior glenohumeral ligaments and it may communicate with the subcoracoid recess (inferior subscapularis recess). It should not be confused with an acquired defect.
Article
Intrathoracic kidney
An intrathoracic kidney is a very rare form of ectopic kidney. There has been no reported increased incidence of stones or infections as can be seen with other forms of ectopic kidneys. The adrenal glands are usually normal in location in most cases.
Epidemiology
Thoracic ectopic kidney is rar...
Article
Prussak space
Prussak space is a subcomponent of the lateral epitympanic space and extends from the level of the scutum to the umbo. This space is best demonstrated on the oblique coronal image.
Gross anatomy
Boundaries
lateral: pars flaccida of the tympanic membrane and the scutum
medial: neck of the ma...
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