No abstract

Small animal models of lung fibrosis are essential for unraveling the molecular mechanisms underlying human fibrotic lung diseases; additionally, they are useful for preclinical testing of candidate antifibrotic agents.

No abstract

Two benign leiomyomas are described together with their radiographic and sonographic appearance, and the literature is reviewed. In large, asymptomatic renal masses, which are well circumscribed on angiography, a benign intrarenal leiomyoma may be considered. Nonechogenicity and relatively good through-transmission seem to substantiate the diagnosis.

Cystic degeneration of the adventitia is a rare entity occurring most commonly in the popliteal artery: only a few cases involving the external iliac, femoral, radial, and ulnar arteries have been reported. The authors describe 2 cases, one of which appears to be the first report of the disease in the external iliac artery in a child.