MediAI

 Edited by ScholarGen MediAI Team What is the key CT finding of lymphangioleiomyomatosis? The characteristic CT pattern of lymphangioleiomyomatosis is numerous bilateral, round, thin-walled pulmonary cysts distributed diffusely throughout both lungs. Pneumothorax and renal angiomyolipoma are important associated findings that can strengthen the diagnostic impression. Executive Answer Lymphangioleiomyomatosis (LAM) should be considered when a woman presents with acute pleuritic chest pain or dyspnea and chest CT demonstrates numerous bilateral, round, thin-walled cysts distributed diffusely throughout the lungs. In this case, a large right pneumothorax was the acute finding, while the diffuse cystic lung pattern provided the key diagnostic clue. A small hyperechoic lesion in the lower pole of the left kidney was also most consistent with a renal angiomyolipoma, an important extrapulmonary association of LAM. Recognizing the combination of diffuse cystic lung disease, pneumothorax, a...