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M R Asch

Publications and source records attributed to M R Asch.

23 records · Page 2Linked to original sources
PubMed1989

Myelolipoma: radiologic findings in seven patients.

Myelolipomas are rare, non-functioning, benign tumors which occur both in the adrenal gland and in various extra-adrenal locations, particularly presacrally. We report the computed tomographic (CT) and ultrasonographic (US) findings in seven patients with pathologically proven myelolipomas. Magnetic resonance (MR) imaging was also obtained in one. Our series includes one patient with bilateral myelolipomas, one with a presacral myelolipoma, and one with a calcified myelolipoma. Radiographic findings can suggest the diagnosis. A characteristic mass is lucent on plain films, is echogenic on US, shows fat attenuation on CT, is avascular at angiography, and has a signal intensity similar to that of fat on T1-weighted MR images. However, the absence of fat can render imaging findings nonspecific. Percutaneous needle biopsy is a simple, safe, effective way to establish the diagnosis when imaging features are not typical.

Adrenal Gland Neoplasms↗
PubMedDate not supplied

Clinical experience with the antecubital Simon nitinol IVC filter.

PURPOSE: To evaluate the Simon nitinol vena cava filter (SNF) placed via the antecubital vein in a series of patients. Issues examined by the authors included insertion site variables, filter efficacy, and complications. The authors also explored the option of placement of a peripherally inserted central catheter (PICC) via the same access site. MATERIALS AND METHODS: This was a prospective study that included all patients who had undergone antecubital attempt at insertion of the SNF. Seventy-four consecutive patients were enrolled during a 29-month period. A PICC was inserted concomitantly in 23 of these patients. The series included 38 men and 36 women, with a mean age of 62.5 years (range, 17-88 years). The clinical indications for filter placement included contraindication to anticoagulation (81.1%), complication of anticoagulation (9.4%), failure of anticoagulation (8.1%), and prophylactic placement (1.4%). Concomitant PICCs were inserted for chemotherapy (56.5%), venous access (39.1%), and total parenteral nutrition (4.4%). Clinical follow-up was available in 61 patients. Mean follow-up was 124 days (range, 0-884 days). RESULTS: The SNF was successfully placed via the antecubital vein in 98.6% of the patients. In one patient, access was via the right common femoral vein because of failed right arm access. There was a question of pulmonary embolism (PE) after filter placement in two patients. Otherwise, there were no complications related to placement of either the filter or PICC. CONCLUSION: Antecubital venous insertion of the SNF is a safe and effective method for the prevention of PE in patients who cannot be managed with traditional anticoagulation, and offers the option of inserting a PICC with no added complications.

Arm↗