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Biomedical subjects

T Siniluoto

Publications and source records attributed to T Siniluoto.

At least 37 records · Page 2Linked to original sources

Radiological findings in small-bowel tumours.

Radiological findings were evaluated in a series of 25 cases with malignant and three with benign small bowel tumours with surgical or autopsy confirmation of diagnosis. 27 patients were operated, two of them without any radiography due to 'acute abdomen'. 23 patients were examined with ultrasound, 14 with barium examination, seven with CT, four with plain films and two with angiography. Ultrasound revealed 16 (70%) out of 23 tumours, in two cases result was abnormal but the tumour was not found and in five cases no abnormality was identified. Eleven barium examinations (78%) showed signs of tumour, one showed signs of occlusion but not the tumour and in two cases no abnormality was found. The tumour was seen in six of seven cases examined with CT. Our results proved that US is useful as screening study. Barium studies are needed for exact location of the tumour and in US negative cases.

Adenocarcinoma↗

Superselective intra-arterial chemotherapy with mitomycin C in liver and gallbladder cancer.

This phase 2 study was undertaken to evaluate the feasibility and efficiency of superselective intra-arterial chemotherapy with mitomycin C (SIAC) in patients with liver and gallbladder cancer and compare them to hepatic artery ligation (HAL) and regional chemotherapy with 5-fluorouracil (5-FU). Survival time was related to the percent hepatic replacement (PHR) of the tumour (P less than 0.01) in all patients. SIAC had no advantage over HAL +/- 5-FU as chemotherapy regimen for unresectable liver cancer. The overall response rate of SIAC was 42% (15/36), 27% (3/11) for primary liver cancer, 40% (8/20) for hepatic metastases from colorectal cancer and 60% (3/5) for carcinoma of the gallbladder. The patients who responded to SIAC survived significantly longer (P less than 0.005). The survival rate for responders at 1 year was 68% and for non-responders 26%. Chemotherapy toxicity after SIAC occurred in 16 (44%) patients requiring cessation of therapy in 6 (16%) patients. We conclude that the results of this phase 2 clinical trial were not encouraging. There is an urgent need for reliable means of predicting tumour response to chemotherapy and for a more careful patient selection.

Colonic Neoplasms↗

Ultrasound in acute and chronic cholecystitis.

Sonograms of 412 consecutive patients with operatively and histologically proven acute or chronic cholecystitis were reviewed retrospectively. 267 of them had been operated on in an acute phase of gallbladder disease and 145 had undergone an elective operation. 236 patients had an operative and/or histological diagnosis of acute cholecystitis and 176 both operatively and histologically confirmed chronic cholecystitis. A thickened gallbladder wall was seen in 80% of acute cases, wall sonolucency in 39%, dilated gallbladder in 60%, sludge in 26% and stones in 75%, the corresponding proportions of the chronic cases being 18%, 4%, 12%, 13% and 93%. A contracted gallbladder with stones was seen in 15% of the chronic and 1% of the acute cholecystitis cases. 90% of the acute cases had two or more sonographic abnormalities, whereas 70% of the chronic cases had only one abnormality, most frequently gallstones. Only one normal sonographic finding was recorded in each group.

Acute Disease↗

Imaging of splenic rupture.

Results from imaging of 30 splenic ruptures were analyzed. Radiography gave abnormal findings in 7/30 thoracic examinations and 8/19 plain abdominal films. Ultrasonography rarely revealed focal splenic lesions at primary examination, though intraperitoneal fluid was commonly found. Subsequently more focal changes were discovered, and none of the 19 examined patients ultimately had a normal ultrasonogram. There were focal splenic lesions in ten patients, subcapsular fluid in four and intraperitoneal fluid in 14. Computed tomography revealed abnormality in all ten studies patients--irregular splenic parenchyma in six, subcapsular fluid accumulation in five and intraperitoneal fluid in six cases.

Adolescent↗

Cavernous hemangioma of the adrenal gland.

Cavernous hemangioma of the adrenal gland is a rare lesion and is seldom examined radiographically. In our case, on staging of gynecological carcinoma, a tumor with calcifications was found in the right adrenal region. On sonography it was of mixed echogenicity, enhanced only poorly on computed tomography and had long-standing contrast-filled lakes on angiography. Surgery revealed a cavernous hemangioma.

Adrenal Gland Neoplasms↗

Ultrasonography of spleen and liver in staging Hodgkin's disease.

Ultrasound (US) findings and accuracy in detecting splenic and hepatic involvement were analysed in 137 unselected, untreated patients with Hodgkin's disease. Histology was available from the spleens of 61 patients and the livers of 59 patients. In 20 patients the spleen appeared abnormal at US; containing focal hypoechoic lesions in 14, being enlarged in 13 and inhomogeneous in 2 patients. Most focal lesions were less than 10 mm. The sensitivity of US in detecting involvement of the spleen was 54% and the specificity 100%; the ability of US to detect hypoechoic splenic lesions improved during the study period. Focal hypoechoic hepatic lesions were found in three patients; histological examination of these showed benign changes in one and suspicious finding in the second. In the third the lesion disappeared during chemotherapy. In three cases with definitive histological evidence of liver involvement, US results were false-negative. The results indicate a higher diagnostic efficacy for US in the detection of splenic than hepatic involvement by Hodgkin's disease.

Adolescent↗

Treatment of symptomatic congenital hepatic cysts with single-session percutaneous drainage and ethanol sclerosis: technique and outcome.

PURPOSE: To evaluate the safety and efficacy of percutaneous aspiration and ethanol sclerotherapy as the sole treatment for symptomatic, nonneoplastic, congenital hepatic cysts. PATIENTS AND METHODS: In a prospective study, 59 symptomatic, congenital hepatic cysts in 25 patients were treated with ultrasound-guided percutaneous aspiration and ethanol sclerotherapy. Eleven patients had a solitary cyst, and 14 patients had polycystic liver disease. Mean follow-up was 4 years. RESULTS: Fifty-seven (97%) of 59 sclerotherapy procedures were technically successful, and there were no recurrences. Eight cysts in six patients disappeared totally. The mean diameter of the remaining 49 cysts decreased from 9 cm to 3 cm. At the last follow-up visit, 14 patients were asymptomatic, four had milder epigastric pain than before the treatment, and seven with polycystic liver disease had recurrent symptoms due to growth of nontreated cysts. No major complications occurred. CONCLUSION: Percutaneous aspiration with ethanol sclerotherapy is a safe, effective, and minimally invasive treatment method for symptomatic congenital cysts. It is the initial treatment of choice for all patients with symptomatic congenital hepatic cysts.

Cysts↗

Percutaneous cholecystostomy in acute cholecystitis in high-risk patients: an analysis of 69 patients.

BACKGROUND: Optimal treatment of acute cholecystitis in high-risk patients with acute cholecystitis continues to be a difficult therapeutic problem. With the development of more advanced radiological imaging techniques, percutaneous cholecystostomy (PCS) has been presented as an effective treatment alternative in critically ill patients. This paper reports our experiences of percutaneous cholecystostomy in the treatment of acute cholecystitis in a well defined high-risk patient group. METHODS: The data concerning 69 high-risk patients with acute cholecystitis treated by percutaneous cholecystostomy in Oulu University Hospital and Kokkola Central Hospital were analyzed. RESULTS: Ultrasound showed gallbladder stones in 71% (49/69) of the patients and 29% of them presented with acalculous cholecystitis. After PCS, pain diminished in 94% (61/65), fever in 90% (35/39), CRP values in 87% (53/61) and leucocyte count in 84% (46/55) of the patients. Before PCS, the CRP value was 132+/-106 mg/l and after PCS 79+/-73 mg/l (P = 0.001) and corresponding leucocyte counts were 14.7+/-5.0 and 9.3+/-3.2 (P = 0.001), respectively. The antegrade cholecystocholangiography was performed in 29 patients after PCS, and common bile duct stones were detected in 8 patients; these stones were treated by endoscopic papillotomy. Complications after PCS occurred in 17 patients (26%), but only two patients required emergency laparotomy. Mortality was 19% (13/69). Acute cholecystitis alone was the cause of death in only three patients. Mostly, fatal outcome was caused by the serious underlying diseases. CONCLUSION: According to our results, PCS should be the method of choice in high-risk patients with acute cholecystitis.

Acute Disease↗