Swyer-James-MacLeod syndrome. (1/9)
Swyer-James-MacLeod syndrome is a rare complication of respiratory tract infection occurring in early childhood. We report two children with chronic cough and recurrent wheezing who fulfilled the diagnostic criteria for this disorder: 1) Unilateral loss of lung volume with hyperlucency on chest x-ray. 2) Unilateral reduction in vascularity on CT scan of the chest. 3) Unilateral loss of perfusion on Technetium 99c lung scan. (+info)Basilar hyperlucency in a patient with emphysema due to hypocomplementemic urticarial vasculitis syndrome. (2/9)
Disproportionate emphysematous involvement of the lung bases, compared with the apices, sometimes called basilar hyperlucency, is an unusual radiographic pattern that has been reported primarily in patients with alpha-1 antitrypsin deficiency, but also in individuals with emphysema caused by intravenous injection of methylphenidate. We present a patient with emphysema associated with hypocomplementemic urticarial vasculitis syndrome and whose chest radiograph demonstrated basilar hyperlucency. To the extent that basilar hyperlucency has not been well recognized as a feature of hypocomplementemic urticarial vasculitis syndrome, this report extends the spectrum of causes of this unusual radiographic pattern of emphysema. (+info)Swyer-James-MacLeod syndrome; repeated chest drainages in a patient misdiagnosed with pneumothorax. (3/9)
(+info)Regression of giant bullous emphysema. (4/9)
Spontaneous resolution of bulla associated with infection or tumor is occasionally observed. However, resolution of progressively enlarging giant bullous emphysema (GBE) after medical therapy has not been reported. A 51-year-old man smoker with GBE on the right lung was referred to Samsung Medical Center for the consideration of bullectomy. A review of his medical records revealed that right-side bullous emphysema had been detected 4 years previously and it had progressively enlarged with a concomitant deterioration of lung function. Although he had a history of chronic asthma, he had never been treated on a regular basis. After combination therapy, including regular tiopropium, a salmeterol/flucatisone inhaler, a salbutamol inhaler as needed, and oral theophylline therapy, right side bulla showed marked regression. This regression of bulla was associated with an improved forced expiratory volume in one second and normalization of residual volume. This case serves as a reminder to clinicians that medical treatment for underlying diseases should precede surgical consideration in patients with GBE. (+info)Collateral ventilation to congenital hyperlucent lung lesions assessed on xenon-enhanced dynamic dual-energy CT: an initial experience. (5/9)
(+info)Swyer-James syndrome with peculiar course and ipsilateral pulmonary vein defect. (6/9)
Swyer-James syndrome (SJS) is a rare disease probably resulting from bronchiolitis obliterans. The radiological findings of this entity are characterized by hyperlucent appearance of one or more lobes of a unilateral lung, decreased lung volume, diminished ipsilateral hilar shadow and hardly visible arterial structure on chest radiography. We report a 50-year-old patient, who had unilateral right lower lung hyperlucency on chest radiography. However, the patient reported a history of pulmonary atelectasis of lobus centralis dexter in the course and the corresponding affliction of ipsilateral pulmonary vein, that rendered the diagnosis more complicated. The radiological and pathological features of this syndrome, as well as differential diagnosis were also discussed. (+info)Swyer-James-MacLeod syndrome with ipsilateral herniation of hyperinflated hyperlucent lung. (7/9)
(+info)Swyer-James-McLeod's syndrome and pneumothorax on same side: delay in chest drain removal despite full expansion. (8/9)
(+info)A 'Hyperlucent Lung' in medical terms refers to a lung appearing overly lucent or darker on an X-ray or imaging study due to reduced vascularity, decreased air content, or the absence of pulmonary disease.
A hyperlucent lung on a chest X-ray or CT scan appears lighter in density compared to a normal lung, which means that it contains less solid structures such as blood vessels, pulmonary tissue, and fluid. This can be caused by various conditions such as emphysema, lung cysts, bullae, or pneumothorax, among others. It is important to note that the interpretation of medical images requires professional training and expertise.