Items tagged “hrct”

24 results found
Article

Crazy paving

Crazy paving refers to the appearance of ground-glass opacity with superimposed interlobular septal thickening and intralobular septal thickening, seen on chest HRCT. It is a non-specific finding that can be seen in a number of conditions.  Pathology Aetiology Common causes: acute respirator...
Case

Bronchiectasis

 Diagnosis certain
A.Prof Frank Gaillard
Published 07 May 2008
62% complete
CT
Article

Cryptogenic organising pneumonia

Cryptogenic organising pneumonia (COP) is a disease of unknown aetiology characterised on imaging by multifocal ground glass opacifications and/or consolidation. A wide variety of infectious as well as noninfectious causes may result in a similar histologic pattern. Terminology Organising pneu...
Article

Intralobular septa

The intralobular septa (sing: septum) are delicate strands of connective tissue separating adjacent pulmonary acini and primary pulmonary lobules. They are continuous with the interlobular septa which surround and define the secondary pulmonary lobules.  See also HRCT terminology
Article

Pulmonary acinus

Pulmonary acinus is commonly defined as the portion of lung distal toa terminal bronchiole and supplied by a first-order respiratory bronchiole or bronchioles 1.  Each secondary pulmonary lobule contains 3-12 acini, and adjacent acini are separated by incomplete intralobular septae. See also H...
Article

Centrilobular region

The centrilobular region, in context of the lungs and HRCT, refers to the central portion of the secondary pulmonary lobule, around the central pulmonary artery and bronchiole.  See also HRCT terminology
Article

Pulmonary parenchymal bands

Parenchymal bands are a HRCT finding. They can be commonly encountered among patients with asbestosis. They are typically over 2 cm in length (up to 5cm), 1-3mm thick and runn though the lung parenchyma and usually extend from a visceral pleural surface 6. They are formed in a number of ways 1:...
Article

Mosaic attenuation pattern in lung

Mosaic attenuation is a descriptive term used in describing a patchwork of regions of differing pulmonary attenuation on CT imaging.  It is a non-specific finding, although is associated with the following: obstructive small airways disease: low attenuation regions are abnormal and reflect decr...
Case

Pneumocystis pneumonia

 Diagnosis almost certain
A.Prof Frank Gaillard
Published 15 Oct 2010
77% complete
CT
Article

Reversed halo sign (lungs)

Reversed halo sign, also known as the atoll sign, is defined as central ground-glass opacity surrounded by denser consolidation of crescentic (forming more than three-fourths of a circle) or ring (forming a complete circle) shape of at least 2 mm in thickness. It was initially described on high-...
Case

Severe bullous emphysema

 Diagnosis certain
Dr Jeremy Jones
Published 11 May 2011
83% complete
CT
Case

Cholesteatoma

 Diagnosis probable
Dr Roberto Schubert
Published 18 Nov 2011
36% complete
CT
Case

Bilateral tympanoplasty

 Diagnosis certain
Dr Roberto Schubert
Published 02 Mar 2012
59% complete
CT
Case

Pulmonary manifestations of scleroderma (prone HRCT)

 Diagnosis probable
Dr Mohammad Taghi Niknejad
Published 23 Nov 2012
62% complete
CT
Case

Non-specific interstitial pneumonia

 Diagnosis probable
Dr Mohammad Taghi Niknejad
Published 08 Feb 2013
71% complete
CT
Article

High resolution CT

High resolution CT is a scanning protocol in which thin sections (usually 0.625 to 1.25 mm) are acquired and reconstructed using a sharp algorithm (e.g. bone algorithm). It has been used for: lung imaging temporal bone imaging Lung imaging Two techniques have been used: spaced axial (non-h...
Case

Usual interstitial pneumonia pattern: idiopathic pulmonary fibrosis

Mild enlarged med...
 Diagnosis almost certain
Dr Hani Salam
Published 14 Jul 2016
86% complete
X-rayCT
Case

Sarcoidosis

 Diagnosis certain
Dr Henry Knipe
Published 25 Feb 2016
92% complete
CTX-ray
Case

Eosinophilic pneumonia: probable

 Diagnosis probable
Dr Imad Awwad
Published 21 Aug 2016
68% complete
CT

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