Antitumor effect of transcatheter oily chemoembolization for hepatocellular carcinoma assessed by computed tomography: role of iodized oil.

The efficacy of transcatheter oily chemoembolization (TOCE) was evaluated in 82 patients with unresectable hepatocellular carcinoma (HCC) by computed tomography more than 6 months after TOCE. A doxorubicin in oil emulsion (DOE) was administered to 42 cases and an epirubicin in oil emulsion (EOE) was administered to 40 cases. No significant differences were found in the patient background characteristics between the DOE-treated group and the EOE-treated group.

Suppressed alloreactivity and mixed chimerism in rats with accepted cardiac allografts by intrathymic injection of donor bone marrow cells.

Intrathymic injection of donor bone marrow cells (ITBMCs) at the time of transplantation and treatment with antilymphocyte serum (ALS) permitted the indefinite survival of Brown Norway (BN, RT1n) rat heart grafts in 6 out of 8 Lewis (LEW, RT1l) rat recipients, LEW recipients with long-surviving BN heart grafts (LSGs) also accepted additional BN heart grafts without further immunosuppression, though they rejected Piebald Virol Glaxo (PVG, RT1c) rat heart grafts in the usual fashion. In the in vitro study, the proliferative response of the lymphocytes from LEW recipients with LSGs remained suppressed when they were stimulated by BN spleen cells, but not when stimulated by PVG cells. Bone marrow cells (BMCs) from LEW rats with LSGs showed strong, nonspecific, suppressive effects on the proliferative response in the mixed lymphocyte culture reaction, suggesting that one of the possible explanations for tolerance might be the involvement of a suppressor mechanism.

Accessory parotid gland tumor: a case report.

We report a case of pleomorphic adenoma which was assessed pre-operatively as arising from the accessory parotid gland. Computed tomography (CT)-sialography provided information about the relationship between the tumor and the remaining normal accessory parotid tissue, and fine-needle aspiration of the tumor provided additional information as to the histologic features of the tumor, i.e.

Acute hepatic failure following transcatheter arterial embolization for the treatment of hepatocellular carcinoma.

We conducted a retrospective analysis to evaluate the risk factors associated with the occurrence of acute hepatic failure following transcatheter arterial embolization (TAE) for hepatocellular carcinoma. From 1984 to 1993 we performed a total of 623 embolization procedures in 369 patients with both hepatocellular carcinoma and chronic liver disease. Within 2 weeks after TAE, 13 patients (2.

Delayed vs. immediate adverse reactions to ionic and non-ionic low-osmolality contrast media.

Purpose: To evaluate the correlation between immediate and delayed adverse reactions to low-osmolality ionic and non-ionic contrast media.

Materials And Methods: A comparative survey of 984 consecutive patients was performed using contrast enhanced CT examination; 472 patients were administered ioxaglate, 512 iopamidol. The immediate adverse reactions were recorded during and after completion of the injection, and delayed reactions were surveyed by questionnaire.

Cyclosporine treatment for polymyositis/dermatomyositis: is it possible to rescue the deteriorating cases with interstitial pneumonitis?

Polymyositis and dermatomyositis are inflammatory muscular diseases of unknown etiology which have interstitial pneumonitis as a serious complication. From 1987 to 1994, we used cyclosporine to treat 14 polymyositis/dermatomyositis patients (8 with and 6 without interstitial pneumonitis). In combination with prednisolone, cyclosporine was either added to or substituted for conventional cytotoxic drugs (azathioprine, cyclophosphamide and methotrexate).

Dynamic MR imaging for extraserosal invasion of advanced gastric cancer.

Dynamic magnetic resonance (MR) images in 37 patients with gastric cancers were obtained by a two-dimensional fast multiplanar spoiled gradient technique. The degree of tumor invasion was classified into four grades regarding a low-intensity band between the stomach and surrounding fat. Advanced gastric cancer was strongly enhanced, appearing as a thickened wall, by the contrast medium during the early to delayed phases of dynamic studies.

[Extracorporeal shock wave lithotripsy monotherapy for a renal stone in a 15-month-old child].

A 15-month old child visited our hospital with the chief complaint of macroscopic hematuria. Intravenous pyelography (i.v.

Major salivary gland lesions: correlation of MR findings with flow cytometric DNA analysis and prognosis.

Objective: We correlated MR imaging findings with those from flow cytometry and determined prognostic factors of patients with major salivary gland lesions.

Subjects And Methods: DNA ploidy (11 aneuploid, 35 diploid lesions) and S-phase fraction (SPF) (12 high-SPF, 28 low-SPF lesions) percentages as determined by flow cytometric technique in 46 major salivary gland lesions were correlated with MR findings and signal-intensity ratios of lesion to muscle on fast spin-echo T2-weighted images, unenhanced spin-echo T1-weighted images, and gadolinium-enhanced fat-suppressed spin-echo T1-weighted images. SPF percentages were correlated with the three signal-intensity ratios by stepwise regression analysis.

5-Fluorouracil induces apoptotic cell death with G2 phase arrest in human breast cancer grafted in nude mice.

Treatment with 5-fluorouracil and its derivatives causes DNA double strand breaks in the S phase, and the subsequent cell death. A 5-Fluorouracil derivative (UFT), that is converted to 5-fluorouracil in vivo, was administered orally at a dose of 18 mg/kg/day to nude mice bearing human breast cancer for 28 consecutive days. The tumors on day 7, 14, 21, and 28 after treatment were examined histopathologically and by flow cytometric cell cycle analysis.

[Intra-arterial infusion chemotherapy for liver metastases from breast cancer].

Twelve patients with liver metastases of breast cancer were treated with hepatic arterial infusion chemotherapy using 20-30 mg/body of epi-adriamycin (epi-ADM) every 2 weeks and continuous infusion of 250 mg/body/day of 5-fluorouracil (5-FU). All patients were followed by systemic chemo-endocrine therapy with oral administration of 600-1,200 mg/day of me droxyprogesterone acetate (MPA) alone or with 600-800 mg/day of 5'-deoxy-5-flurouridine (5'-DFUR). The response rate was 41.

[Primary Non-Hodgkin's lymphoma in the chest wall without preceding disease].

An 80-year-old man was admitted to our hospital with complaints of left-sided chest pain and swelling. A chest roentgenogram revealed a left chest-wall mass. Examination of a biopsy specimen of the mass led to the diagnosis of Non-Hodgkin's lymphoma of diffuse mixed-cell type.

Dynamic MR imaging and early-phase helical CT for detecting small intrahepatic metastases of hepatocellular carcinoma.

Objective: We performed a study to evaluate the sensitivities of multislice dynamic MR imaging and early-phase helical CT as noninvasive methods for detecting small intrahepatic metastases of hepatocellular carcinomas.

Materials And Methods: Dynamic and spin-echo MR imaging and early- and delayed-phase helical CT of the liver were performed for patients with multiple hepatocellular carcinomas before transcatheter arterial chemoembolization. Forty-nine patients had 242 intrahepatic metastases less than 3 cm in diameter.

Simultaneous malignant melanoma and squamous cell carcinoma of the oral cavity: a case report.

Primary malignant melanoma of the oral cavity is rare. The incidence of oral melanoma constitutes between 0.2% and 8.

Hashimoto thyroiditis: correlation of MR imaging signal intensity with histopathologic findings and thyroid function test results.

Purpose: To assess the clinical usefulness of magnetic resonance (MR) imaging of the thyroid gland in Hashimoto thyroiditis.

Materials And Methods: Signal intensity ratios on spin-echo T1-, proton-density-, and T2-weighted images were measured prospectively in 37 patients with Hashimoto thyroiditis (33 women, four men; mean age, 51 years) and in 10 patients with thyroid lymphoma (six women, four men; mean age, 68 years). Signal intensity ratios were correlated with histopathologic findings and thyroid function test results with stepwise regression analysis.

[A comparison of intra-arterial chemoembolization and infusion chemotherapy for liver metastases of breast cancer].

Seventeen patients with liver metastases of breast cancer were treated with a combination of intra-arterial chemotherapy and endocrine therapy at our hospital from 1986 to 1994. Of 17 patients, 9 were treated with transarterial chemoembolization through hepatic artery using 40-50 mg/body of 4'epi-adriamycin (epi-ADM) and lipiodol, and the other 8 were treated with hepatic infusion chemotherapy using 20-30 mg/body of epi-ADM every 2 weeks. All patients were followed by endocrine therapy with oral administration of 800-1,200 mg/day of medroxyprogesterone acetate (MPA).

[MR angiography in the evaluation of endoscopic injection sclerotherapy for esophago-gastric varices].

We evaluated the utility of magnetic resonance angiography (MRA) for the detection of esophago-gastric varices and assessment of their therapeutic response to endoscopic injection sclerotherapy (EIS). MRA was performed in a total of 12 patients with esophago (E)-gastric (G) varices (V) (9 EV and 3 GV patients) both before and two-weeks after EIS. 25-35 horizontal images were obtained during single breath holding and data were reconstructed by using the two dimension time of flight method.

Congenital hypothyroidism: assessment with ultrasound.

Purpose: To determine the clinical utility of cervical ultrasound in patients suspected of having congenital hypothyroidism.

Methods: Thirty-seven patients with suspected congenital hypothyroidism underwent ultrasound and scintigraphic evaluation of the thyroid anatomy, morphology, and function. The ultrasound findings and laboratory data were compared with the standard-of-reference scintigraphic findings and laboratory data for diagnosing specific causes in those patients, and prognosis was correlated with the ultrasound findings.

[Detectability of hypervascular small hepatocellular carcinoma by dynamic spiral CT].

Thirty-one cases of small hepatocellular carcinoma (HCC) under 3 cm in diameter underwent Spiral CT with bolus injection of contrast medium (Dynamic Spiral CT). Dynamic Spiral CT was compared with CT after intra-arterial injection of iodized oil (Lipiodol-CT). The detectability of 79 nodules of small HCC on early phase images of Dynamic Spiral CT was 49.

Primary thyroid lymphoma: evaluation with US, CT, and MRI.

Objective: Our goal was to determine the most effective radiologic workup in diagnosing and staging primary thyroid lymphomas and the value of knowing the extent of tumors for prognostic purposes.

Materials And Methods: Magnetic resonance imaging, CT, US, and fine-needle aspiration (FNA) biopsy (palpation- or US-guided) findings were retrospectively reviewed in 14 patients with primary thyroid lymphomas (5 palpable, 9 nonpalpable). Survival was correlated with the presence or absence of extrathyroidal spread of lymphoma.

Thyroid nodules: re-evaluation with ultrasound.

The purpose of this study was to clarify ultrasound (US) evaluation of microcalcifications and determine whether the calcifications seen in US scans can reliably predict malignant thyroid tumors. Diagnostic accuracy of microcalcification and other various signs seen in US scans for predicting malignancy was evaluated prospectively in 259 pathologically verified thyroid nodules. Sonographic and pathologic correlation of calcifications was performed on 69 of 99 surgically removed nodules.

Thyroid nodules: clinical effect of ultrasound-guided fine-needle aspiration biopsy.

Ultrasound (US)-guided fine-needle aspiration biopsy (FNA) was performed on 268 thyroid nodules (135 palpable, 133 nonpalpable) in 210 patients with various thyroid conditions; 62 nodules also had palpation-guided FNA. Surgical pathology was obtained in 67 malignant nodules and 32 benign nodules. Although the initial failure rate for palpation-guided FNA (12 of 62) was significantly higher than that for US-guided FNA (10 of 268) (p < 0.