No abstract available.
Animals ; Binding Sites* ; Carbon Monoxide* ; Carbon* ; Rats* ; Serotonin*

Eosinophilic granuloma, Hand-Schuller-Christian and Abt-Letterer-Siewe syndrome are known to be the same disease entity involving the reticulohistiocytic system of the body, although their clinical manifestations are different. So they were included under the term of Histiocytosis X and this concept has been generally accepted. The authors have experienced one case of Hand-Schuller-Christian disease and that of eosinophilic granuloma. The former was a 23 years old man with complaints of exophthalmos, polyuria and a tender palpable mass on the right parietal area and in the latter a soft pulastile mase located on the left parietal area in a 3 year old boy. There was no neurological deficits on their admission. We managed them with radiation and steroid therapy following surgical curettage.
Child, Preschool ; Curettage ; Eosinophilic Granuloma ; Exophthalmos ; Histiocytosis* ; Histiocytosis, Langerhans-Cell* ; Humans ; Male ; Polyuria ; Rabeprazole ; Young Adult

No abstract available.
Extremities* ; Limb Salvage* ; Tibia*

PURPOSE: To explain hypothesis that there are two types of human retinal capillary pathways. One is simple type and the other is complex type. The former plays a role in blood flow regulation and the latter does capillary function itself. METHODS: We measured the length, tortousity, and flow velocity of human retinal capillaries using Fluorescein Leukocyte Angiography (FLA) with a Scanning Laser Ophthalmoscope (SLO) on two healthy adult male volunteers. We studied distribution and pathways of human retinal capillaries on the posterior pole. RESULTS: The lengths of capillaries were distributed with two peak incidence. One was 70 microgram and the other 240 microgram. There was no relationship between capillary length and tortousity. The correlation between capillary length and leukocyte velocity showed that the shorter capillary group has a wide range of velocity but the longer group has a narrow range of velocity. CONCLUSIONS: Two types of retinal capillary pathways exist on human retina. Compared with two types of capillaries on the cat retina described by Ben-nun et al, we found that the shorter capillary type plays a role in blood flow regulation and the longer type in capillary function itself.
Adult ; Angiography* ; Animals ; Capillaries* ; Cats ; Fluorescein* ; Humans* ; Incidence ; Leukocytes* ; Male ; Ophthalmoscopes ; Retina ; Retinaldehyde* ; Volunteers

No abstract available.
Vascular System Injuries

We report on a 28 years old female with recurred cardiac myxomas who presented with dizziness, headache, and blurred vision. She had an excision of biatrial atrial myxomas 10 years age. Varying sized multiple cerebral aneuysms and myxomas in left atrium and left ventricle were found on a cerebral angiogram and echocardiogram, respectively. After wide excision including interatrial septum and part of left ventricular septum, her symptoms were much improved.
Adult ; Dizziness ; Female ; Headache ; Heart Atria ; Heart Ventricles ; Humans ; Intracranial Aneurysm ; Myxoma* ; Ventricular Septum

No abstract available.
Neoplasm Metastasis* ; Skull* ; Thyroid Gland* ; Thyroid Neoplasms*

No abstract available.
Hematoma*

No abstract available.
Subarachnoid Hemorrhage, Traumatic*

Traumatic injury to the lower legs has been increasing in Korea and often leads to skin and soft tissue loss, exposing blood vessels, nerves, tendons or bones. Salvaging these legs often requires free flaps. Over the past two decades, the use of free tissue transfer has produced an increasing salvage rate for severely injured lower leg. Between April. 1988 to July, 1997, 47 cases of lower soft tissue defects were reconstructed with free flaps, and retrospective analysis was performed to determine more about the factors associated with free flap failure or immediate vascular complications. We evaluated wound status before operation, operation time after injury, vascular status of recipient site, use of vein graft, use of reverse flow, salvage protocol in compromised anastomosis, survival rate and complications. There were 9 cases of venous thrombosis and 2 cases of arterial insufficiency while 7 out of 9 cases of venous thrombosis were reexplorated. However, 2 cases of partial flap necrosis and 1 case of total necrosis. Two cases of arterial insufficiency were necrotized, so the overall free flap failure rate was 9.6%. The results were analyzed to determine the factors promoting either failure or vascular complication, Many factors which are often blamed for failure (trauma cause, preoperative general condition, preoperative infection status, intraoperative ischemic time) were not significant in this study, but prolonged time after injury correlated with free flap failure, We concluded the adequate debridement and infection control, adequate selection of recipient vessel, accurate vascular anastomosis and most of all, early free flap transfer after injury, will improve the success rate.
Blood Vessels ; Debridement ; Free Tissue Flaps* ; Infection Control ; Korea ; Leg* ; Necrosis ; Retrospective Studies ; Skin ; Survival Rate ; Tendons ; Transplants ; Vascular System Injuries ; Veins ; Venous Thrombosis ; Wounds and Injuries