The hemodynamic aspects of cerebral arteriovenous malformations(AVM) are currently the subject of increasing interest. Recently developed methods such as Doppler sonography, Xenon-enhanced Computed tomography Cerebral blood flow(CT CBF), single photon emission computed tomography(SPECT), and position emission tomography(PET) have promoted a more dynamic diagnostic and therapeutic approach to the complicated problem related to surgery of AVM. In this article, the literatures concerning the hemodynamics of cerebral AVM were reviewed.
Arteriovenous Malformations ; Hemodynamics* ; Intracranial Arteriovenous Malformations*

A 21-year-old Korean male was referred to our department in June, 1999 for the evaluation of extensive reddish patches and gray-bluish pigmentation since birth. Physical examination revealed two kinds of patches over the various parts of the body. Reddish patches suggesting nevus flammeus were located on the left side of face, chest, and both upper and lower extremities. Gray-bluish pigmented patches suggesting nevus of Ota were found on both the periorbital areas. A 0.5×0.6 cm erythematous papule was found on the right anterior chest. The results of its histopathologic examination were compatible with pyogenic granuloma. We made the diagnosis of phakomatosis pigmentovascularis associated with pyogenic granuloma as well as Sturge-Weber syndrome and Klippel-Trenanunay syndrome.
Diagnosis ; Granuloma, Pyogenic* ; Humans ; Klippel-Trenaunay-Weber Syndrome* ; Lower Extremity ; Male ; Neurocutaneous Syndromes* ; Nevus of Ota ; Parturition ; Physical Examination ; Pigmentation ; Port-Wine Stain ; Sturge-Weber Syndrome* ; Thorax ; Young Adult

No abstract available.
Microdialysis* ; Myocardium*

In mammal, lots of follicles start simultaneously their growth but only a few oocytes are ovulated in every sexual cycles. Most of matured and grown oocytes are destined to degenerate by atresia. However, the molecular and physiological mechanisms are not elucidated yet. The present study was designed to establish an induction method of follicular atresia with ketamine or pentobarbitone and evaluate the effect of these anesthetics on oocyte maturation and granulosa cell apoptosis of the mouse ovarian follicle. The percentages of degenerated oocyte and apoptotic granulosa cell in ketamine treated groups were significantly higher than that in controls (58.9% vs 33.5%, p<0.01, degeneration; 44.9% vs 26.6%, p<0.01, apotosis). Futhermore, it was revealed that the concentrations of progesterone in both groups were markedly higher than that in control. In conclusion, it is considered that ketamine induce an atresia as pentobarbitone, and may be useful for inducing follicular atresia.
Anesthetics ; Animals ; Apoptosis ; Female ; Follicular Atresia ; Granulosa Cells* ; Ketamine* ; Mammals ; Mice* ; Oocytes* ; Ovarian Follicle ; Ovary* ; Pentobarbital* ; Progesterone

No abstract available.
Laryngeal Neoplasms* ; Radiotherapy*

Tubular apocrine adenoma(TAA) is a rare benign neoplasm usually found on the scalp. It has been designated as an apocrine histogenesis on the basis of its ultrastructural characteristics, enzyme, and immunohistochemical phenotype. Histopathologically the neoplasm consists of tubules or cysts, which show signs of apocrine secretion and sometimes needs to be differentiated from papillary eccrine adenoma. We report a typical case of TAA on nostril which shows differentiation toward apocrine in nature.
Adenoma* ; Phenotype ; Scalp

No abstract available.
Hypopituitarism*

No abstract available.

Assays for HBsAg, HBV DNA, anti-HBc and anti-HBs of 285 units of packed red blood cells supplied by Taegu Red Cross Blood Center were performed to evaluate the correlation between the prevalence of HBV DNA and the serologic markers for hepatitis B virus. None of 285 plasma samples was positive for HBsAg, however, HBV DNA were detected by polymerase chain reaction in 2 samples which both presented only with anti-HBc positivity.. Of 204 samples tested for anti-HBs, 96 samples(47.1%) were positive and among 216 samples tested for anti-HBc, 80 samples(37.0%) were positive. Of 193 samples tested for both anti-HBs and anti-HBc, 80(41.1%) were all negative and 48(24.9%) were positive on both tests. Those samples which showed positivity only to anti-HBc were 25(13.0%). Considering the above results, transfusion-transmitted hepatitis B virus infection could be prevented by discarding anti-HBc positive blood, however, that may bring insufficient supply of donor bloods in the country like Korea where the prevalence of anti-HBc is high. Anti-HBc positive blood unequivocally positive for anti-HBs should be considered noninfectious for HBV and should be allowed to be transfused. It would reduce the amount of discarding donor blood as the routine blood donor screening tests presently used at Korea Red Cross Blood Center supplemented by anti-HBs and anti-HBc testing.
Blood Donors ; Daegu ; DNA* ; Erythrocytes* ; Hepatitis B Surface Antigens ; Hepatitis B virus ; Humans ; Korea ; Mass Screening ; Plasma ; Polymerase Chain Reaction ; Prevalence* ; Red Cross ; Tissue Donors

No abstract available.
Agammaglobulinemia*