Transmesenteric hernias through congenital mesenteric defects are the least common of intra-abdominal hernias and rare causes of acute intestinal obstruction in infants and children. Because of its rarity and difficulty of diagnosis, the mortality and morbidity were very high, and incarceration leads to intestinal obstruction and subsequently, strangulation and gangrene of varying lengths of intestine. We present an autopsy case of transmesenteric hernia through the defect of the mesentery of ileum, showing strangulationand obstruction of the affected small bowel.
Autopsy* ; Child ; Diagnosis ; Gangrene ; Hernia* ; Humans ; Ileum ; Infant ; Intestinal Obstruction ; Intestines ; Mesentery ; Mortality

Tracheobronchial aspergillosis is an unusual form of invasive aspergillosis characterized by noninvasive or only superficially invasive tracheobronchitis with a propensity for dissemination. We report a two-year-old male who suddenly died of respiratory failure. Postmortem examination revealed a pseudomembrane covering the mucosa of larynx, trachea and bronchial tree of both lungs. This pseudomembrane was composed predominantly of Aspergillus hyphae. There was transmural necrotizing bronchitis with fungal invasion to the narrow zone of peribronchial tissue, and dissemination to the stomach and kidney. This form of pulmonary aspergillosis had not been reported in this country.
Aspergillosis* ; Aspergillus ; Autopsy* ; Bronchitis ; Humans ; Hyphae ; Kidney ; Larynx ; Lung ; Male ; Mucous Membrane ; Pulmonary Aspergillosis ; Respiratory Insufficiency ; Stomach ; Trachea

An embolus is a detached intravasclar solid, liquid, or gaseous mass that is carried by the blood to a site distant from its point of origin. Virtually 90% of all emboli arise in thrombi (thromboembolism). Rare forms of emboli include fragments of bone or bone marrow, atheromatous debris from ruptured atherosclerotic plaques, droplets of fat, bits of tumor, foreign bodies such as bullets, and bubbles of air of nitrogen. Lung embolism is the disease condition caused by pulmonary vasculature obstruction with various kinds of material mentioned above.
Bone Marrow ; Embolism* ; Foreign Bodies ; Lung* ; Nitrogen ; Plaque, Atherosclerotic

Surgical operation or invasive diagnostic procedure may inflict unwanted mechanical injury on either tissue or organ. Iatrogenic injury is said that unwanted, accidental mechanical injury of the body, caused by surgical procedures. Rarely intraabdominal operation, spinal surgery or invasive diagnostic procedures can cause iatrogenic abdominal injury, which becomes the subject of a medicolegal investigation by prolonged treatment period, sequelae, and death.
Abdominal Injuries*

The authors studied the ultrastructural changes of liver cell mitochondria in autolysis. The male Sprague-Dawley rats, weighting 140~160 gm were sacrificed for extract liver tissue. The slices of the liver tissue were incubated in 37 degrees C aseptic normal saline, and those were examined by following intervals; 10, 20 and 30 minutes and 1, 2, 6, 12 and 24 hours with light and electron microscope. The results obtained by light microscopy were summerized as follow. Several fine intracytoplasmic vacuoles were observed 1 hour after incubation. After 3 hours, focal destruction of cytoplasmic membrane with pyknosis of nuclei were observed. More delicate intracytoplasmic architectural changes could not be detected at light microscopic studies. The cord arrangement and cellular boundaries were relatively well preserved until 24 hours after incubation. Electronmicroscopically, mild intramitochondrial swelling with diminution of intramatrical granules were observed at 20 minutes. These were the earliest findings. Both high amplitude swelling and destruction of mitochondrial membrane were observed concurrently at 1 hour after incubation. The earlier membrane changes were observed at inner membrane with cristae and followed by degeneration of the outer membrane. The intramatrical amorphous dense deposits were observed at 30 minutes when the membranes were not destroyed. These deposits were noted in the other experimental groups which were incubated longer than 30 minutes. More electron dense deposits were observed after 1 hour at that time the membrane changes appeared. Vhe results suggest in this experiment that the earliest autolytic changes of liver cell mitochondria is loss of intramitochondrial granules and the membraneous changes led to the irreversible mitochondiral injury. The appearance of two types of intramitochondrial dense deposits would be an interesting finding needed to require further investigation for the chemical stucture and mechanism of dense deposit formation.
Male ; Humans

The authors studied the formation of giant mitochondria in liver cell. The Sprague Dawley rats were sacrificed following intervals; 5, 10, 20, 30, and 60 minutes after intraperitoneal injection of hydrazine in the amount of 200 microliter/kg. And the extracted liver tissues were examined with light and electron microscopes. The results obtained were summarized as follow; Light microscopically, there is little difference between control and experimental groups. Electron microscopically, elongated, bizzare shaped mitochondria are appears 5 minutes after hydrazine injection. Those show attenuated portion, Y, U, or C shaped feature suggesting fusion or budding mitochondria. The number of giant mitochondria is decreased after 10 minutes group and rarely present in 60 minutes group. The results suggest in this experiment that the formation of giant mitochondria is kind of reversible change and it is different from the mitochondrial swelling of cellular injury. Intermitochondrial fusion and mitochondrial budding may be related with the formation of giant mitochondria.
Rats ; Animals

PURPOSE: The replacement of functional genes into cells that lack genes or mutant genes is the basis of gene therapy. In cancer, where cells often have multiple genetic defects, the replacement of critical genes may suffice to suppress cell growth or induce cell death. In malignant brain tumors, p53 mutation are among the most frequently observed genetic findings and inactivation p53 suggests that p53 plays a critical role in carcinogenesis and tumor progression. Therefore, we study the successful transfer of the wild-type p53 gene using a replicative deficient adenovirus vector into human glioma and medulloblastoma c~ell lines. Meterials and Methods: The human glioma cell line T-98G, U-87MG, U-373MG were used. To determine the efficiency of the adenovirus vector, cell lines were transfected with the Ad-p gal and analysed with X-Gal staining. Cell viability was determined by trypan blue exclusion every day after infection and Westem blot analysis was used to conform the expression of the exogenous p53 protein. RESULTS: Cell growth of the Ad-CMV-p53 infected U-373MG, and U-87MG was significantly suppressed. It appeared that exogenous p53 protein expression had an earlier ad more profound suppressive effect on U-373MG having a mutated p53 gene than on U-87MG having a wild-type p53. The expression of the exogenous p53 was more than 10 times higher than the expression of the endogenous p53. To examine the decreased viability, U-373MG was stained with Hochest 33258 and detected nuclear condensation and apoptic body. Staining results suggest that cells undergo apoptosis. CONCLUSION: The replicative deficient adenoviral vector can transfer and express p53 in human glioma cell lines in vitro, restoring wild-type p53 tumor suppressor functions. The restoration of normal p53-encoded protein in the mutant ceil lines induced cell death. The high expression of the newly transduced protein had different effects on the growth rate of the infected cell lines depending on the p53 status of the cells.
Adenoviridae* ; Apoptosis ; Brain Neoplasms ; Carcinogenesis ; Cell Death ; Cell Line* ; Cell Survival ; Genes, p53 ; Genetic Therapy ; Glioma* ; Humans ; Medulloblastoma ; Trypan Blue

Recently, due to the evolution of technology, the field of neurosurgery is receiving spotlight. In particular endovascular neurosurgery has gained a great interest along with the advancement of the modern neurosurgery. The most remarkable advances were made in embolization of the cerebral aneurysms, arteriovenous malformations and intracranial stenosis during the past 10 years. These advances will further change the role of neurosurgeons in treating cerebrovascular disease. Because interventional neuroradiologists have performed most of procedures in the past, neurosurgeons have been deprived of chances to learn endovascular procedure. This article discusses the development of technological aspect of endovascular neurosurgery in chronological order. By understanding the history and current status of the endovascular surgery, the future of neurosurgery will be promising.
Aneurysm ; Arteriovenous Malformations ; Constriction, Pathologic ; Endovascular Procedures ; Intracranial Aneurysm ; Neurosurgery

Adult polycystic kidney disease is a genetic disease characterized by bilateral multiple renal cysts and is transmitted as an autosomal dominant traits. The disease usually manifests in the fourth decade of life. The affected patients usually die with end stage renal failure, cardiovascular assaults and infection etc. Cardiovascular assaults include ruptured berry aneurysm, spontaneous intracranial hemorrhage, acute myocardial infarction, dissecting aortic aneurysm and hypertensive heart failure. Fatal intracranial hemorrhage and hypertensive heart failure occur in 15% and 2% of patients, respectively. Genetically-determined structural weakness in the arterial wall have been suggested as a possible factor in the genesis of berry aneurysm. We have experienced three autopsy cases with cardiovascular causes of sudden death. Two cases have intracranial hemorrhage (1 berry aneurysm and 1 intracerebral hemorrhage) and the remaining one is dead with hypertensive cardiomyopathy. All of them are aged over 40 years and associated with polycystic liver disease. Histologically, myriad cysts of enlarged bilateral kidney are lined by single layer of cuboidal cells with focal hyperplastic epithelial configuration. Diffusely scattered liver cysts are also lined by flat to cuboidal epithelium and often associated with portal fibrosis.
Adult* ; Aortic Aneurysm ; Autopsy ; Cardiomyopathies ; Cerebral Hemorrhage ; Death, Sudden ; Epithelium ; Fibrosis ; Heart Failure ; Humans ; Intracranial Aneurysm ; Intracranial Hemorrhages ; Kidney ; Liver ; Liver Diseases ; Myocardial Infarction ; Polycystic Kidney, Autosomal Dominant* ; Renal Insufficiency

No abstract available.
Gestational Trophoblastic Disease*