Placenta accreta. Additional sonographic observations.

Recent reports describe the antenatal sonographic diagnosis of placenta accreta based on failure to visualize a hypoechoic zone at the placental margin. This finding was confirmed in our series of seven cases. New observations in this series include prominent large or multiple placental venous lakes and periuterine vascularity in six of seven cases, and progressive thinning and disappearance of the retroplacental hypoechoic zone on sequential examinations in two of seven cases.

Closed-loop obstruction of the small bowel: CT and sonographic appearance.

Two patients with closed loop obstruction diagnosed by CT and sonography are reported. Abdominal radiograph was nonspecific. The characteristic CT and sonographic features included (a) isolated conglomerate of dilated, fluid-filled bowel loops; (b) fixation of these "U" shaped distended loops; (c) thickened bowel wall; and (d) extraluminal fluid.

Adrenal and pseudoadrenal masses: CT and US findings.

Computed tomography (CT) is currently the imaging modality of choice for assessing the morphology of the adrenal glands in adult patients. Much useful information can be gained using CT in disease processes which primarily involve one or both of the adrenal glands, such as adenomas, as well as in entities which secondarily affect the adrenals, such as pituitary or metastatic disease. The size and configuration of the glands can be readily determined, and masses may be detected.

Prostatic abscess: CT and sonographic findings.

The value of CT and sonography in the diagnosis and follow-up of abscesses of the prostate was studied in six patients with this disease. Five had CT alone, one had CT and sonography, and one had sonography only. CT findings included an enlarged gland with nonenhancing fluid-density collections that sometimes were multiseptated or had enhancing rims.