A Rare Presentation of Swyer-James-Macleod Syndrome in the Elderly.

Swyer-James-MacLeod syndrome (SJMS) also known as hyperlucent lung syndrome is a condition that occurs as a complication of infectious bronchiolitis obliterans. It is characterized by inflammation and fibrosis of the affected area of the lung resulting in ventilation and perfusion mismatch ultimately leading to underdevelopment of the affected lung. A key feature used for diagnosis is unilateral small lung with hyperlucency on a chest radiograph.

Swyer-James Syndrome: A Rare Radiological Report of Two Cases Presenting in Adulthood.

Swyer-James syndrome (SJS), also termed MacLeod syndrome, is an acquired secondary unilateral hyperlucency of the lung due to childhood lung infections. This disorder can be diagnosed in children; however if there are few or no symptoms, diagnosis can be missed and can then be detected later in adult life as an incidental finding. We present here the case reports of two patients, where one of them had a unique presentation of unilateral hyperlucency on a chest radiograph and a bilateral mosaic pattern on CT lung but with no history of childhood infections and another case with unilateral hyperlucency of the lung with the history of childhood infection were diagnosed as SJS.

Delayed diagnosis of Swyer-James-MacLeod syndrome.

Swyer-James-MacLeod Syndrome is a rare obliterative lung disease typically caused by childhood infection resulting in arrested pulmonary development. Imaging findings include unilateral hyperlucency on chest x-ray, and hyperlucency, hypovascularity and expiratory gas trapping on computed tomography. Recognition of abnormal imaging can lead to earlier diagnosis and institution of appropriate management.

A case of asthma revealed to be a much rarer condition.

Asthma is one of the most common diseases. However, in patients with refractory asthma, chest imaging assessment should be performed, bearing in mind the possibility of other diseases.

Expiratory CT scan: When to do it and how to interpret it.

Expiratory CT scan is a complementary technique of inspiratory CT that provide valuable physiological information and may be more sensitive to detect air trapping than pul-monary function tests. It is useful in many obstructive airway diseases, including obliterative bronchiolitis, asthma, Swyer-James syndrome, tracheomalacia, hypersensitivity pneumonitis and sarcoidosis. In obliterative bronchiolitis, expiratory CT scan may be the only imaging technique that shows abnormalities in the early phase of disease.

Filtration-histogram based texture analysis and CALIPER based pattern analysis as quantitative CT techniques in idiopathic pulmonary fibrosis: head-to-head comparison.

Objective: To assess the prognostic performance of two quantitative CT (qCT) techniques in idiopathic pulmonary fibrosis (IPF) compared to established clinical measures of disease severity (GAP index).

Methods: Retrospective analysis of high-resolution CT scans for 59 patients (age 70.5 ± 8.

Congenital lung lesions: a radiographic pattern approach.

Congenital lung malformations represent a spectrum of abnormalities that can overlap in imaging appearance and frequently coexist in the same child. Imaging diagnosis in the neonatal period can be challenging; however, the recognition of several archetypal radiographic patterns can aid in narrowing the differential diagnosis. Major radiographic archetypes include (1) hyperlucent lung, (2) pulmonary cysts, (3) focal opacity and (4) normal radiograph.

[Surgical Treatment for Congenital Bronchial Atresia and Intralobar Sequestration in the Same Lobe].

A 21-year-old man who had a history of pneumonia twice presented with chest discomfort. Computed tomography( CT) revealed dilatation of the atretic bronchus that was not continuous with the proximal one, and surrounding hyper-lucent lung fields in the outer and mediastinal sides of the right basal segment, and the absence of B10b+c. CT also demonstrated the presence of A10b+c in the former field and the aberrant artery from the inferior phrenic artery in the latter.