Does ultrasonography underestimate the volume of normal parenchyma in benign testicular masses?
Classic ultrasonographic patterns of testicular masses may permit preoperative identification of a benign process, permitting a testis sparing procedure to be planned. However, ultrasonography underestimates the amount of normal residual parenchyma because this tissue is compressed against the capsule into a thin rim. The amount of normal residual parenchyma identified on preoperative ultrasound should not be used as a factor when deciding whether a testis sparing procedure might be appropriate.
Osteoclastogenesis is elevated in AS patients, especially in those with sacroiliac joint ankylosis. Increased osteoclastogenesis may be related to osteopenia in AS patients.