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Biomedical subjects

W Karp

Publications and source records attributed to W Karp.

At least 37 records · Page 2Linked to original sources
PubMed1981

Percutaneous cytodiagnosis of abdominal masses by ultrasound guided fine needle aspiration biopsy.

A review was made of 168 ultrasound guided fine needle biopsies on 145 patients. Fifty-seven biopsies were from the pancreas, 40 biopsies from the liver, 28 from the kidney, 26 from the abdomen and 17 from the retroperitoneum. The total accuracy rate was 66 per cent varying from 50 per cent in abdominal lesions to 83 per cent in hepatic lesions. The differences of the results are discussed as are the indications and the role of ultrasound guided fine needle puncture compared with other modalities.

Abdominal Neoplasms↗
PubMed1981

Comparison between two radiographic contrast media for hysterosalpingography.

Two water-soluble contrast media for hysterosalpingography--one with high viscosity (Perjodal H viscous) and one with low viscosity (Isopaque Amine) were compared with special reference to the development of pain in 61 patients. Patients examined with Isopaque Amine experienced significantly less pain and this contrast medium therefore is suggested as a suitable agent for hysterosalpingography in the investigation of sterility.

Abdomen↗
PubMed1981

Staging of bladder carcinoma with computed tomography.

In a series of 24 patients with bladder carcinoma. 17 of whom underwent cystourethrectomy, the discriminatory power of computer tomography (CT) in staging of the tumours was compared with the clinical evaluation. In low-stage tumours the accuracy of staging was not increased by CT. In high-stage tumours CT was greatly superior to clinical examination for assessing neoplastic extension. CT is recommended in bladder carcinoma for which cystourethrectomy is planned, so as to achieve maximum accuracy of information concerning depth of infiltration.

Adult↗
PubMed1981

Ultrasonography of the gallbladder. Investigation of the nonvisualized gallbladder at oral cholecystography.

One hundred and one patients with nonvisualized gallbladder at double dose oral cholecystography were examined with ultrasonography. In 41 of 44 operated patients, ultrasonography suggested gallbladder disease. Operation in all of these cases confirmed the diagnosis. In three of the patients with cholelithiasis operation revealed in addition gallbladder carcinoma. In three patients, in which ultrasonography demonstrated normal appearance of the gallbladder surgery revealed chronic cholecystitis and stone impacted in the cystic duct. The diagnostic value of ultrasonography as complementary method for evaluation of gallbladder disease, particularly in cases of nonvisualization of the gallbladder at ultrasonography is stressed. The high incidence of gallbladder carcinoma in the present material in patients with cholelithiasis point to the fact that this group of patients should be the subject for careful investigation.

Adult↗
PubMed1980

Postoperative acute acalculous cholecystitis--an assessment of diagnostic procedures.

Two cases with postoperative acute acalculous cholecystitis diagnosed by computed tomography (CT) and ultrasonography are described. This rare postoperative complication is briefly reviewed. The mortality from this complication is high because the diagnosis is often missed. Use of diagnostic tools such as ultrasonography and CT increases the possibilities of reaching a correct diagnosis and therefore improves the prognosis.

Adult↗
PubMed1980

Retroperitoneal sarcoma treated by surgery.

A retrospective analysis of extensive surgery with resection of retroperitoneal sarcoma and total or partial resection of adjacent organs in 15 patients is presented. Dominating symptoms were a palpable mass (80%). The tumor was felt in all patients. In 9 of 10 patients, ultrasonography showed a solid tumor with retroperitoneal location. In 14 patients (93%) the tumor was removed, in 11 of them adjacent organs also. Five of the patients were subjected to more than one operation because of tumor recurrence. Two patients died postoperatively. Six patients are alive without tumor recurrence; and three, with recurrence 18 to 62 months after the first operation. Four patients died 5--24 months after primary operation. In seven patients (50%), the tumor recurred locally. Surgery for recurrent tumor was beneficial. Complete surgical removal provides the most effective therapeutic approach. Routine second-look operation within a year after primary surgery may be a way to improve the results. Adjuvant cytostatic therapy could be considered.

Adult↗
PubMed1980

Diagnostic and prognostic value of pedal lymphangiography in testicular teratomas.

Since 1960 pedal lymphangiography was followed by retroperitoneal lymphadenectomy in 60 patients with malignant teratoma of the testis. The accuracy of lymphangiography compared to the histological examination of the retroperitoneal lymph nodes was 88%. The prognostic value of lymphangiography seems to be of importance. Cavography and urography have given little additional information while modern techniques, such as computed tomography and perhaps ultrasound, probably will be of great help in the staging of patients with testicular tumours.

Humans↗
PubMed1980

Angiography and ultrasound examination in the evaluation of pancreatic lesions.

Ultrasound and angiography of the pancreas were performed in 68 patients. Ultrasound reached an accuracy of 64.5 per cent and angiography 76.4 per cent. Both methods excluded disease of the gland in all patients without clinical evidence of disease at follow-up. Both methods had higher accuracy in the diagnosis of carcinoma than of pancreatitis. Although angiography has higher accuracy, ultrasound is recommended for screening of patients with abdominal pain. Because of the differential diagnostic difficulties, percutaneous fine-needle biopsy is recommended, when a pancreatic lesion is demonstrated. Angiography is used mainly to predict operability and prognosis.

Adult↗
PubMed1980

Retroperitoneal sarcoma: ultrasonographic and angiographic evaluation.

Fifteen patients with retroperitoneal sarcoma were examined by angiography. Preoperative abdominal ultrasonography was performed in nine of them. Ultrasonography demonstrated in all nine cases a solid mass with characteristic echo-pattern with an echo-rich central area and an echo-poor periphery. Angiography demonstrated an avascular mass in one case, a hypovascular in four, and a hypervascular in ten cases. The techniques of both methods are discussed. The value of ultrasonography as a diagnostic procedure at the time of initial evaluation and angiography as an important diagnostic tool for localization of the mass and for achievement of anatomical details important for surgery is stressed.

Adult↗
PubMed1980

[Ultrasound diagnosis of non-aneurysmic pulsating abdominal tumors].

Ninety-two patients with a pulsating abdominal mass and suspected abdominal aortic aneurysm (AAcA) were examined by ultrasonography. We diagnosed 48 cases (52%) of AAA and 5 unexpected lesions ventral to the aorta (5%), but in 39 cases (42%) we were not able to explain the symptom in spite of extensive diagnostic efforts and follow-up. Changes of the aorta or transmission of the pulse by adjacent structures are the main cause of a pulsating abdominal mass. Ultrasound examination appears to be optimal screening method for diagnosing AAA as well as the other symptoms no further diagnostic efforts are necessary after a negative ultrasound study.

Abdominal Neoplasms↗
PubMed1979

Infusion tomography and ultrasonography of the gallbladder in the diagnosis of acute cholecystitis.

Sixty-three patients with the clinical suspicion of acute cholecystitis were examined with infusion tomography of the gallbladder. Ultrasonography was performed in 51 of these cases. The technique and diagnostic principles of both methods when used in combination is stressed. Thus in a case of gangrenous cholecystitis when opacification of the gallbladder wall may not appear at infusion tomography, ultrasonography may demonstrate signs of gallbladder disease. Infusion tomography, on the other hand, may be of great value if ultrasonography is not informative.

Acute Disease↗
PubMed1979

Ultrasound, angiography and fine needle aspiration biopsy in diagnosis of renal neoplasms.

The diagnostic approach to a renal mass including ultrasound, angiography and fine needle aspiration biopsy is reviewed on the basis of 23 cases. The value of the combination of these methods is emphasized especially in tumors which appear without echoes at ultrasround and avascular-hypovascular at angiography. The findings are correlated and some differential diagnostic problems discussed as well as the possible risk of spreading tumor cells at fine needle aspiration biopsy.

Adenocarcinoma↗
PubMed1979

Bilateral concurrent renal neoplasms: report of eleven cases.

Eleven patients with concurrent bilateral renal neoplasms are presented, including one case with dissimilar tumor histogenesis. In four cases urography showed only unilateral expansive lesions. The importance of high-dose nephrotomography and bilateral selective renal angiography is stressed. Literature review revealed 57 patients with concurrent bilateral renal cell carcinoma, indicating that this entity may be more frequent than previously believed.

Adenocarcinoma↗
PubMed1978

Evaluation of solitary renal cystic lesions.

The diagnostic approach in cases of expanding renal lesions is reviewed on the basis of 106 patients with cystic lesions. Differential diagnostic aspects of cysts, tumor masses and cystic tumors are given. Ultrasound examination is considered to reduce the need of nephroangiography otherwise required. The value of nephroangiography with angiotensin in equivocal cases is emphasized.

Adult↗
PubMed1978

Ultrasonography and angiography in the diagnosis of abdominal aortic aneurysm.

A material of 130 consecutive patients with clinically possible abdominal aortic aneurysm was reviewed. All of them were examined by ultrasonography and 23 by abdominal aortography as well. Ultrasonography revealed aortic aneurysm in 42 patients. The management of this entity and the value of different diagnostic methods are discussed. The importance of ultrasonography as a non-invasive and accurate diagnostic aid is emphasized.

Aged↗
PubMed1977

Angiography of the regenerating liver after lobar resection.

Angiography was performed in 18 patients before and after resection of parts of the liver. The regenerative process was a rule complete within few months and had a characteristic appearance with mainly stretching and displacement of arteries.

Adult↗