Thoracic CT findings in XXXX .

@entity1 @entity358 @entity22148 @entity9129
OBJECTIVE: @entity22148 manifests in the thorax as @entity358 . The purpose of this article is to describe the CT characteristics of cysts in @entity1 with @entity22148 and to note other thoracic findings. MATERIALS AND METHODS: The thoracic CT examinations of 17 @entity1 with @entity22148 were reviewed retrospectively for the presence, anatomic distribution (upper lung predominant, lower lung predominant, or diffuse), extent (size, number), and morphology (shape, wall thickness) of cysts. Any additional thoracic findings were also noted. RESULTS: The study population consisted of 13 @entity1 (76%) and four @entity1 (24%) with a mean age of 50.2   15.2 years. Two @entity1 (12%) had normal findings on CT. Fifteen @entity1 had @entity9129 , all of whom had more than one cyst. Most @entity1 had bilateral (13/15, 87%) and @entity358 (13/15, 87%). The cysts varied in size from 0.2 to 7.8 cm. The largest cysts were located in the lower lobes of 14 of 15 @entity1 (93%). Of the nine @entity1 with large cysts, most had at least one multiseptated cyst (7/9, 78%). Five of 15 @entity1 (33%) had more than 20 cysts. Cyst shape varied among the 15 @entity1 and also within individual @entity1 (10/15, 67%) ranging from round to oval, lentiform, and multiseptated. Cysts showed no central or peripheral predominance. CONCLUSION: Discrete thin-walled cysts in @entity1 with @entity22148 are more numerous and larger in the lower lobes and vary in size and shape. Large @entity358 are frequently multiseptated. These features may aid in differentiating @entity22148 from other more common @entity9129 .
