A case of pulmonary arteriovenous fistula in a 8-year-old boy who presented with easy fatigability and cyanosis for 4 months, is described. Grossly, there was a large vascular anomaly measuring 2x2 cm in the center of the removed right lower lobe. Microscopically, the lesion consisted of dilated arterial and venous structures resembling a cavernous hemangioma. Subintimal fibrosis and attenuated vascular structure lacking elastic fiber and representing A-V shunt were also noted in the lesion.
Child ; Male ; Female ; Humans

Two cases of urachal anomaly (1 urachal cyst and 1 patent urachus) are reported in a neonate and an eleven-year old boy, respectively. In case 1, the patient was born after an uncomplicated pregnancy to a mother who had taken progesterone during the first trimester. Because of breech presentation, cesarian section was elected to deliver a male baby weighing 2.3 kg who showed abdominal distension. The patient died of respiratory difficulty several minutes after birth. At autopsy, there was a large cyst in the midpoint of the abdominal and pelvic cavity. This round cyst was composed of two components, urachus and urinary bladder. No area of umbilicocystic fistula was present. The lining epithelium was chiefly of transitional type. Assocaited anomalies were segmental stenosis of posterior urethra, absence of abdominal musculature, bilateral polycystic kidney of Potter type IV, hydroureter, and hypoplasia of lungs. Low set ears, micrognathia and club foot were also present. In case 2 the patient was 11-year old boy. He had suffered from intermittent urinary dribbling from umbilicus since early infancy, whenever the abdominal pressure was increased. The patency of urachus was confirmed by fistulography. And the urachal anomaly was surgically removed. Histopathologically the resected patent urachus consisted of pseudostratified columnar to transitional epithelium resting on fibrous stroma mixed with well formed smooth muscle bundles.
Pregnancy ; Female ; Male ; Infant, Newborn ; Humans ; Cysts

Increased splenic uptake of radiocolloid is a helpful sign in the scintigraphic diagnosis of diffuse hepatocellular diseases, but any attempt has been made to quantify this phsiologic phenomenon. The purpose of thestudy is to evaluate a simple computer quantitation of S/L ratio and to determine normal range and S/L ratios forvarious hepatic diseases. Authors analized S/L ratios of 194 cases of liver scintigraphy from July 1984 to May1985. The results are as follows; 1. The age distribution of normal and various heptic disases was most frequentin 30 to 40 decade. 2. The classification of studied groups were normal subjects (80 cases), hepatitis(30 cases),liver cirrhosis (59 cases), hepatoma(8 cases), metastasis(10 cases), and miscellaneous diseases(7 cases). 3. Thesimple computer quantitation method exhibits small interobserver variation.(r=0.92, p<0.001) 4. The mean S/L ratioin normal group was determined 0.34 (S.D=0.12) with a its range from 0.10 to 0.58 (0.34±2 S.D). The mean S/Lratios in various hepatic diseases were as follows; 0.52 (S.D=0.18) in hepatitis, 1.10 (S.D=0.43) in cirhhosis,0.77 (S.D=0.38) in hepatoma, 0.47 (S.D=0.21) in metastasis, and 0.43(S.D=0.17) in miscellaneous diseases. 5. Theelevated S/L ratios rather than normal values were found in hepatitis (30%), cirrhosis(51%), hepatoma(63%), and metastasis(20%). 6. The sensitivity of single scintigraphic diagnosis of liver cirrhosis was 63%, but thesensitivity was improved to 90% when combined with S/L ratio. 7. The simple computer quantitation of the S/L ratiois a valid and useful method in the interpreation of liver scintigraphy and also may increase the sensitivity inthe diagnosis of liver cirrhosis and hepatoma combined with cirrhosis.
Age Distribution ; Carcinoma, Hepatocellular ; Classification ; Diagnosis ; Fibrosis ; Hepatitis ; Liver Cirrhosis ; Liver ; Methods ; Neoplasm Metastasis ; Radionuclide Imaging ; Reference Values

No abstract available.
Common Variable Immunodeficiency* ; Cytomegalovirus Infections* ; Cytomegalovirus* ; Immune System Diseases

No abstract available.
Protein-Losing Enteropathies*

Histopathological effects due to elevation of blood pressure induced by norepinephrine and sodium chloride, and due to high cholesterol feeding were studied upon the arteries and various organs of rats for the evaluation of relationship between arteriosclerosis and hypertension. Blood pressure was generally elevated in all groups, but rose significantly, particularly in the groups receiving sodium chloride. This was especially abrupt at the end of 3 months. No particular gross nor histopathologic changes were found in the aorta, but variable alterations in the coronary and renal arteries including hypertrophic and proliferative changes were characteristically identified. Variable interesting changes of myocardium, kidneys and adrenal glands were also observed. The hypertrophic changes were especially due to hyalinosis in the vascular wall, and the proliferative changes in several cases were similiar to that noted in malignant hypertension. Induction of hypertension by norepinephrine and sodium chloride caused arterial changes such as hypertrophic changes, mainly hyalinosis, and proliferative and necrotizing changes especially in the renal and coronary arteries of rats.
Animals ; Arteries/*pathology ; Hypertension/*pathology ; Male ; Norepinephrine/*pharmacology ; Rats ; Sodium Chloride/*pharmacology

Evaluations of residual renal function and the therapeutic effectiveness in renal tuberculosis have largely been dependent on intravenous pyelogram or Contrast-CT scan, even though, exact renal function are not evaluated with there methads. 99mTc-DMSA is a radiopharmaceutical that is trapped in the functioning tubular cells of the kidney and therefore, quantitative renal function could be evaluoted by ineasuring the counts of renal radioactivity and concomittant evaluation of renal morphology could be passible with the analog imapes of the radioactivity. The authors retrospectively analyzed 99mTc-DMSA scans of 75 kidndys of 67 patients with confirmed renal tuberculosis. We classified the morphologies of tuberculous kidneys as 6 types. We classified the morphologies of tuberculous kidneys as 6 types such as the type with small cortical defect, with parenchymal ulcerocavernous lesions, ulcerocavernous fistula to pelvis, mass-like defects, contracted kidney with ureter visualization, and the type with nonvisualization of kidney, corresponding to the characters of renal tuberculous pathogenesis with abscess formation, ulcerocavernous fistula, and fibrosis, and correspondings to the renal anatomy with parenchyma, and pelvocalyceal collecting system. Their mean residual renal functions measured with 99mTc-DMSA uptake rates were 19.0%, 18.4%, 7.9%, 12%, 4.1%, 3.4% respectively.
Abscess ; Fibrosis ; Fistula ; Fluspirilene ; Humans ; Kidney ; Pelvis ; Radioactivity ; Retrospective Studies ; Succimer* ; Technetium Tc 99m Dimercaptosuccinic Acid ; Tuberculosis, Renal* ; Ureter

The ultimate goal of blood donor screening for anti-hepatitis C virus(HCV) antibodies is the specific exclusion of vital carriers from the blood donor population. Recently, a third-generation anti-HCV screening (Lucky HCD 3.0) and immunoblot assay (Lucky Confirm) using antigens derived from the core and different nonstructural regioris (NS3, NS4 and NS5) of the HCV vital genome were developed. To evaluate the usefulness of these assays, anti-HCV reaction patterns of the RIBA-2 and the presence of HCV-RNA detected by reverse transcriptase-polymerase chain reaction(RT-PCR) were examined in 180 sera, which were repeatedly positive in Abbott EIA-2, and HCV seroconversion panel sera. The reaction intensity of HCD 3.0 was higher than that of HCD 2.0. The sensitivity and positive predictive value for vital carrier state of HCD 3.0 were 98.4% and 85.4%, respectively. HCD 3.0 assay enabled the detection of the antibody response 2 weeks earlier than did other second-generation EIAs. RT-PCR testing of sera with RIBA-2-indetermihate results showed that 33.3%(10/30) had evidence of HCV-RNA. However, all of nine Lucky Confirm-indeterminate cases were negative for HCV-RNA. The sensitivity and specificity of Lucky Confirm test were 99.2% and 76.4%, respectively, and the positive and negative predictive values were 90.5% and 97.7%, respectively.
Antibodies ; Antibody Formation ; Blood Donors ; Carrier State ; Genome ; Humans ; Immunoenzyme Techniques* ; Mass Screening ; Sensitivity and Specificity

No abstract available.
Spinal Muscular Atrophies of Childhood*

PURPOSE: To evaluate the causative factors of the false positive CT findings of parametrial invasions of cervial cancer. MATERIALS AND METHODS: we analysed 17 parametria of 14 patients with the diseases staged over lib on CT, but confirmed to be under stage Ila on pathology. The CT findings were retrospectively reviewed, and compared with pathologic findings. RESULTS: The causes of false postive diagnosis of parametrial invasions on CT were prominent cardinal ligaments (n=12), vaginal fornix(n=3), and prominent uterine vessels(n=2). CONCLUSION: Familiarity with these CT finding may be helpful in avoiding false positive diagnosis of parametrial invasion in patients with uterine cervical carcinoma.
Diagnosis ; Humans ; Ligaments ; Pathology ; Recognition (Psychology) ; Retrospective Studies