Detection and evaluation of early soft tissue changes are important in rheumatoid arthritis or other jointdiseases. The most important factors for radiologic demonstration of soft tissue changes are resolving power andthe optimization of contrast differences between structures representing skin and subcutaneous tissue densities.Phantom study was done by using combination of immersion technique and mammography to get the most reliable methodfor improvement of soft tissue contrast without deterioration of resolution. Clinical application was also done in5 normal volunteers and 5 rheumatoid patients. The results indicate that soft tissue contrast, especially betwenskin and subcutaneous tissues can be significantly imporved with combination of immersion technique andmammography with 50% ethanol in both phantom and clinical study.
Arthritis, Rheumatoid ; Clinical Study ; Ethanol ; Healthy Volunteers ; Humans ; Immersion ; Mammography ; Radiography ; Skin ; Subcutaneous Tissue

Obstetric problems concerning macrosomia were evaluated by retrospective review of 91 pregnancies that resulted in the delivery of an infant weighing 4,000 gm or more at the Yeungnam University Hospital during 3 1/2 years from Jun 1983 to Oct 1986. The results obtained were as follows 1. Macrosomic infants weighing 4,000 gm or more occurred in 2.8% of the deliveries. 2. 65.9% of macrosomic infants and 53.5% of total infants were male. The ratio of male was statistically higher in the macrosomic infants than in the total infants (P<0.05) 3. The incidence of macrosomia was higher with increasing gestational age, and deliveries at 42 weeks or more gestation were more common in the macrosomic infants than in the total infants (P<0.01).
Clinical Study* ; Gestational Age ; Humans ; Incidence ; Infant ; Male ; Pregnancy ; Retrospective Studies

To evaluate the status of hepatitis B virus infection in the mothers and neonates and to determine the maternal-neonatal transmission of hepatitis B virus, 2,276 term pregnant women were screened for presence of serum HBsAg, at the Department of Obstetrics and Gynecology, Yeungnam University Hospital, during the period of 18 months from Jan. 1986 to Jun. 1987, and the sera of sixty-six HBsAg carrier mothers and their neonates were tested for HBV markers and liver enzymes. The results were as follows: 1. The prevalence rate of asymptomatic HBsAg carrier in the term pregnant women was 4.7% (53/1,279). 2. Positive rates of HBsAg and anti-HBs in the sera of sixty-six neonates born to asymptomatic HBsAg carrier mothers were 12.1% and 9.1%, respectively. Transient elevation of SGOT (three to four times of upper normal limit) was detected in one of eight HBsAg-positive neonates and one of six anti-HBs positive neonates. 3. Positive rates of anti-HBc, HBeAg and anti-HBe in the sera of sixty-six asymptomatic HBsAg carrier term pregnant women were 93.9%, 45.5%, 50%, respectively. The rates of transmission of maternal anti-HBc, HBeAg and anti-HBe to the neonates were 85.5 (53/62), 90% (27/30) and 87.9% (29/33), respectively. 4. Serum HBsAg was detected in four of thirty neonates born to HBeAg positive HBsAg carrier mother, three of thirty-three neonates born to anti-HBe positive HBsAg carrier mothers, and one of three neonates born to both HBeAg and anti-HBe negative HBsAg carrier mothers.
Aspartate Aminotransferases ; Female ; Gynecology ; Hepatitis B e Antigens ; Hepatitis B Surface Antigens ; Hepatitis B virus ; Humans ; Infant, Newborn* ; Liver ; Mothers ; Obstetrics ; Pregnant Women* ; Prevalence

PURPOSE: To describe the MR characteristics of giant cell tumor of bone. MATERIALS AND METHODS: MR iraagings of 15 cases of pathologically proved giant cell tumor were retrospectively analyzed. Signal intensity and homogeneity, involvement of articular surface, low signal intensity rim around the tumor, cortical disruption and soft tissue involvement were evaluated. RESULTS:Tumor showed low signal intensity on T1 weighted images(93%), inhomogenous high signal on T2 or T2* weighted images(93%) and inhomogeneous enhancing pattern(88%). In 11 cases of giant cell tumor of long bones, all cases showed involvement of articular margin and 10 cases(90%) showed rim of low signal intensity between tumor and normal marrow. Disruption of cortical bone(25%) and soft tissue involevement(7%) were also demonstrated. CONCLUSION: We concluded that giant cell tumor showed characteristic MR findings could be helpful in making correct diagnosis.
Bone Marrow ; Diagnosis ; Giant Cell Tumor of Bone ; Giant Cell Tumors* ; Giant Cells* ; Retrospective Studies

No abstract available.
Anterior Temporal Lobectomy* ; Seizures*

No abstract available.
Colon* ; Humans* ; Substance P* ; Tetrodotoxin*

PURPOSE: To describe the magnetic resonance (MR) findings of pigmented villonodular synovitis(PVNS) of the knee, and to evaluate the clinical value of MR in the diagnosis of PVNS. MATERIALS AND METHODS:MR imagings of seven patients with PVNS were studied. The type of lesion, presence of bony erosion, the signal intensity, and the relationship between contrast enhancement and signal intensity on T2-weighted images were analyzed, retrospectively. RESULTS: The lesion was mainly villous in three patients and nodular in four, and bony erosion was seen in one patient. On T2-weighted image, the signal intensity of the villous form was mixed iso- and hypointense in two, hypointense in one, and that of the nodular form was heterogeneous with hypo-, iso-, and hyperintensities. The hypointense portion on T2-weighted image showed poor contrast enhancement, which may suggest hemosiderin deposition or advanced fibrosis. The iso- or hyperintense portion on T2-weighted image showed strong enhancement, which suggest active cellular proliferation. CONCLUSION:MR imaging could be a very useful modality in the diagnosis as well as prediction of histological findings of the PVNS.
Cell Proliferation ; Diagnosis ; Fibrosis ; Hemosiderin ; Humans ; Knee* ; Magnetic Resonance Imaging* ; Retrospective Studies ; Synovitis, Pigmented Villonodular*

In adenomatous polyposis coli there are many colonic and extracolonic manifestations, and various combinations of these induce different clinical presentations and syndromes. We experienced a unique case of adenomatous polyposis of the large intestine and stomach in a 39-year-old man. In the colon, small cell neuroendocrine carcinoma rather than adenocarcinoma had developed, which did not contain adenomatous or carcinomatous foci. The adenomatous polyps in the colon were all small and sessile with no cancerous or precancerous change two years after the resection of the symptomatic gastric adenomas, even though the gastric adenomas were larger and showed dysplastic change. We think this case is another variant of adenomatous polyposis syndrome.
Adenocarcinoma ; Adenoma

No abstract available.
Rhizotomy* ; Scoliosis*

No abstract available.
Carcinoma, Squamous Cell* ; Cervix Uteri* ; Female ; Humans ; Biomarkers, Tumor*