middle lobe syndrome
atelectasis with chronic pneumonitis of the middle lobe of the (right) lung, due to compression of the middle lobe bronchus, usually by enlarged lymph nodes, which may be tuberculous; chief symptoms are chronic cough, wheezing, recurrent respiratory infections, hemoptysis, chest pain, malaise, easy fatigability, and loss of weight; sometimes confused with interlobar accumulation of fluid in the lateral x-ray view.
Synonym(s): Brock syndrome
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