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Pulmonary lymphangioleiomyoma

Lymphangioleiomyomatosis (LAM) is a systemic disease with unknown etiology. Due to the abnormal proliferation of smooth muscle, it leads to the obstruction of bronchus, lymphatic vessels and small blood vessels. The lung is the most vulnerable, often manifested as diffuse interstitial lung disease, so Lam is often called pulmonary lymphangioleiomyomatosis. The disease mainly occurs in menopausal women. Clinically, it often has dyspnea, spontaneous pneumothorax, chylothorax and other manifestations. Typical chest imaging shows small thin-walled cysts diffusely distributed in both lungs.


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