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Biomedical subjects

H Hadar

Publications and source records attributed to H Hadar.

49 records · Page 3Linked to original sources
PubMed1979

Spontaneous extravasation of urine in chronic ureteric obstruction.

Two cases of spontaneous extravasation of urine in chronic ureteric obstruction are presented. In 1 case the long-standing partial ureteric obstruction was caused by enlarged lymphomatous glands, and extravasation was followed by a perinephric abscess. In the second case, believed to be unique, there was a moderate chronic ureteric obstruction post irradiation, and extravasation was induced by a sudden rise in intra-abdominal pressure due to vomiting.

Adult↗
PubMed1979

Pica diagnosed by abdominal X-rays.

A young Arab woman with pica is presented. The diagnosis was suggested by the recurrent presence of numerous radiopaque particles in the course of the gastrointestinal tract. The particles changed location and concentration in successive abdominal X-rays taken at intervals of several weeks. Pica and its implications are discussed.

Adult↗
PubMed1977

Portal hypertension and esophageal varices in hemangiomatosis of the spleen.

Bleeding esophageal varices and severe portal hypertension developed in a patient with capillary hemangiomatosis of the spleen. No signs of cirrhosis were found at postmortem examination, and preoperative celiac angiography suggested an intrasplenic shunt as the cause of the high portal pressure. Although a very rare condition, this possibility should be considered in the differential diagnosis of esophageal varices.

Arteriovenous Fistula↗
PubMedDate not supplied

Computed tomography evaluation of the nasal septal reconstructed larynx.

Computed tomography (CT) of the larynx was performed in 15 patients who had their larynx reconstructed by composite nasal septal autograft after frontal, or frontolateral laryngectomy. Five representative cases each with CT scan and additional laryngoscopic documentation are presented. The CT permitted a detailed appraisal of the nasal septal grafted larynx. Our attention was directed to the image of the graft in what concerned its patterns of distortion, fibrosis or chondrification, and width of the laryngeal airway. The scan from 10 patients brought radiographic evidence that the implanted cartilage retained vitality and structural integrity.

Aged↗
PubMedDate not supplied

Primary CT diagnosis of gastrointestinal masses.

Four cases of gastrointestinal masses (3 tumorous and 1 inflammatory) diagnosed primarily by CT, are presented. It is stressed that the radiologist should be familiar with the CT appearance of these conditions. It is recommended that in most cases barium studies and endoscopy should follow. Case 4 is unique because it represents the rare possibility of CT diagnosis of a tumor of the bowel where barium studies and endoscopy may have failed.

Adenocarcinoma↗
PubMedDate not supplied

Early MR demonstration of spinal metastases in patients with normal radiographs and CT and radionuclide bone scans.

Forty patients with known primary tumor and progressive back pain, suspected of having spinal metastatic disease, underwent magnetic resonance (MR) examinations of the thoracic and lumbosacral spine. Conventional radiographs and CT scans of the spine were all normal. The radionuclide bone scans were equivocal. In 21 patients focal or diffuse vertebral MR abnormalities were detected. In nine patients the lesions were hypointense on T1 sequence, and the same lesions were demonstrated poorly or not at all on T2 and proton density sequences. In eight other patients the bone marrow metastases presented with strong signal intensity on T2 and were poorly or not at all demonstrated on T1 and proton density sequences. In three patients with multiple myeloma, the signal intensity pattern of the vertebrae was diffusely heterogeneous, with alternating small foci of strong and weak signals (a mosaic-like pattern). Following the MR studies, needle biopsy confirmed the malignancy in the 21 patients who had shown abnormalities. No correlation between the type of primary tumor and the signal intensity of the vertebral metastases was shown. Possibly the mosaic pattern shown in three of the multiple myeloma patients represents a special case.

Adult↗
PubMedDate not supplied

[Acute mesenteric thrombosis. Successful resection and revascularization. Report of a case].

Acute mesenteric thrombosis; resection and successful revascularization. A case report. A patient with acute mesenteric thrombosis was surgically treated with extensive bowel resection and revascularization interposing a synthetic vascular graft. A few months later on aortoduodenal fistula ensued. Critical discussion by the authors of their therapeutic approach with special emphasis on the value of dynamic CT scanning in the evaluation of a functioning synthetic vascular graft.

Aged↗
PubMedDate not supplied

Percutaneous nephrolithotomy.

Our initial experience with percutaneous nephrolithotomy in 46 randomly selected patients included 16 who had undergone previous surgery for calculi. A urologist and radiologist cooperated closely in carrying out the procedure, which was performed in one or two stages (16 and 30 cases respectively). Calculi were successfully removed from 80.4% of the patients with the use of grasping forceps or ultrasonic lithotripsy. Operating time ranged from 30 to 180 min and the average hospital stay was 8 days. Complications were few and of a transient nature. Further experience and patient selection is necessary in order to reduce the time and cost of this procedure.

Adolescent↗
PubMedDate not supplied

The use of far distal arterial bypass for limb salvage.

Thirty-four distal arterial reconstructions to the ankle and the foot for limb salvage were performed in 33 patients, 11 of whom underwent additional operative procedures. The follow-up period is up to 4 years. The operative mortality rate was 9.09%. The 6 month, 1 year and 2 year accumulated patency rates calculated by life table analysis were 85%, 86.7% and 77.3%, respectively. Limb salvage was achieved not only in patients with patent grafts but also in a considerable number of patients whose grafts were occluded between 3 and 24 months postoperatively.

Actuarial Analysis↗
PubMedDate not supplied

Angiography in the evaluation of carcinoma of the bladder.

Pelvic angiography using the Seldinger technique as a method for more accurate staging of bladder tumors is discussed. This method offers an excellent demonstration of the depth of infiltration and perivesical extension of a tumor. The procedure is considered safe, and involves no technical difficulties. In cases where there has been previous surgery and radiotherapy, there may be some risk of overstaging. We consider this method an extremely valuable tool for staging bladder tumors more accurately, and, therefore, for providing better treatment.

Adult↗
PubMedDate not supplied

Primary bone tumor resectability: the value of serial MRI studies in the determination of the feasibility, timing, and extent of tumor resection.

We report the prospective analysis of 119 magnetic resonance imaging (MRI) studies in 41 patients with primary bone tumors performed from January 1984 to December 1990 to evaluate the contribution of serial MRI studies in the determination of feasibility, timing, and extent of tumor resection. Long repetition time (TR)-long echo time (TE) T2-weighted (T2, second echo) imaging was the most useful in assessing soft-tissue involvement, and short TR-short TE T1-weighted (T1) imaging for documenting the bone marrow changes. The feasibility, timing, and extent of resection was determined with the help of MRI in 20 cases with only two local recurrences. One study falsely suggested active tumor. In four other cases, a treatment decision was made based on the MRI. The MRI added significantly to the evaluation by computed tomography, radiographs, and bone scans.

Adolescent↗