Middle Lobe Syndrome Due to Calcified Adenopathy

Right middle lobe syndrome in sisters.

The so-called middle lobe syndrome.

Chronic atelectasis and pneumonia of the middle lobe have been described as a clinical syndrome, of which the essential pathological feature is an obstruction of the middle lobe bronchus. The cause of obstruction may be intraluminal or extraluminal, specific causes such as tumour or active tuberculosis not included. Graham, Burford, and Mayer (1948) reported 12 cases in which the syndrome resul...

Middle lobe syndrome in children today.

Middle lobe syndrome in children is a distinct clinical and radiographic entity that has been well described in the pediatric literature. However, issues regarding its etiology, clinical presentation, and management continue to puzzle the clinical practitioner. Pathophysiologically, there are two forms of middle lobe syndrome, namely obstructive and nonobstructive. Middle lobe syndrome may pres...

Outcome after right middle lobe syndrome.

The long-term pulmonary consequences of right middle lobe syndrome (RMLS) in childhood are not known. Therefore, outcome was evaluated in 17 children with RMLS diagnosed in early childhood (mean age, 3.3 years; SD, 1.1 year). Mean age at follow-up was 10.1 years (SD, 2.6 years). RMLS was defined as atelectasis of the right middle lobe (RML) of at least 1 month's duration and visible on the late...

Infectious Causes of Right Middle Lobe Syndrome.

Right middle lobe (RML) syndrome is defined as recurrent or chronic obstruction or infection of the middle lobe of the right lung. Nonobstructive causes of middle lobe syndrome include inflammatory processes and defects in the bronchial anatomy and collateral ventilation. We report on 2 case patients with RML syndrome, one due to infection with Mycobacterium avium complex followed by M asiaticu...