Biomedical subjects
Publications and source records attributed to V J Mascatello.
Sharply marginated defects were observed in the scapulae of five patients. In all cases the defects were benigh in appearance and unrelated to symptoms. These patients have been observed up to 5 years without change in the radiographic appearance. Recognition of the benign nature of these defects is important to avoid confusion with pathologic conditions.
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A 29-year-old woman with sarcoidosis developed obstructive jaundice due to granulomatous involvement of the common hepatic duct and surrounding lymph nodes. After temporary decompression by T-tube, obstruction was alleviated by corticosteroid therapy.
Seven patients were identified who developed a palpable breast mass following augmentation mammoplasty. Xeromammography showed the "mass" to be a puckering or bulge in the Silastic implant.
Fifteen cases of circumferential gastric antral disease identified by upper gastrointestinal (GI) series over a 12-month period were studied by a gray-scale ultrasound. In 93 per cent of the patients studied, a characteristic ovoid anechoic area containing a dense central collection of echoes was identified. The abnormality was located in the midline or slightly to either side, just dorsal to the inferior margin of the liver on longitudinal sections. The lesions studied included primary and secondary malignancy, lymphoma, corrosive gastritis, and granulomatous disease of childhood. In each instance a barium study of the stomach confirmed the location of the lesion. A prospective study of 50 normal individuals revealed one patient in whom the characteristic appearance was found at ultrasound and who subsequently had a normal upper GI series. Thus, although the ultrasound appearance of antral thickening may rarely be found in normal individuals, this characteristic appearance should strongly suggest gastric pathology, necessitating an upper GI series.
The problem of a duplex collecting system associated with an obstructed ectopic ureter or ureterocele is common in pediatric urology. Four such patients were studied by gray scale ultrasound which was useful in demonstrating the dilated upper pole collecting system as well as an ectopic ureter and a ureterocele. Although the diagnosis of a nonfunctioning upper pole unit in a duplex kidney is usually suggested by the urogram, ultrasound provides a noninvasive means of confirmation which is independant of function. Further, ultrasound-guided puncture with antegrade pyelography demonstrates the course of the ectopic ureter, thus providing a more complete preoperative evaluation.