No abstract available.

No abstract available.

The patients initially underwent epikeratoplasty for keratoconus but a penetrating kerato plasty was required due to the opacity in the cornea. By using of this specimen, which was obtained by trephination the healing process of the host-Ienticule cornea could be examined by electron microscopy and immunofluorescence method. Epithelial ingrowth over the lenticule was well formed by the regeneration of the basement membrane over the Bowman's membrane. However, the poor attachment of the lenticule over the host corneal stroma made the interface easily separated during the sectioning processes. Electron microscopic study revealed the keratocytes in the lenticule stroma vacuolized with large number of degenerated microorganelles. These results suggest that it may take a long time to complete the wound healing of the host-Ienticule interface despite the epithelial ingrowth onto the lenticule was well formed.
Basement Membrane ; Bowman Membrane ; Cornea ; Corneal Stroma ; Epikeratophakia* ; Extracellular Matrix ; Fluorescent Antibody Technique ; Humans ; Keratoconus ; Microscopy, Electron ; Regeneration ; Trephining ; Wound Healing

Neurenteric cyst(enterogenous cyst) is a rare congenital lesion, usually affecting the lower cervical or upper thoracic areas, and its occurrence in cranial vault is even rarer. We present a patient with intracranial neurenteric cyst anterior to the pons and medulla oblongata. A 40-year old man presented with two-month history of occipital headache and facial spasm. The cyst was decompressed via far lateral suboccipital approach, and the patient recovered without permanent neurological deficits. Features on imaging studies and histological findings are discussed with the review of the literatures.
Adult ; Cranial Fossa, Posterior* ; Headache ; Humans ; Medulla Oblongata ; Neural Tube Defects* ; Pons ; Spasm

Clinical chemotherapy refractoriness is characterized by resistance to multiple drugs. Multidrug resistance(MDR) is caused by over-reactivity of a unidirectional drug efflux pump, transmembrane glycoprotein(P-glycoprotein), which is encoded by the MDR1 gene. P-glycoprotein leads to increased drug efflux and decreased intracellular drug concentration. Clinical trials that attempt to reverse or modulate MDR have been done. Cyclosporin-A and verapamil are the most extensively studied agents and several trials of cyclosporin-A as a MDR modulator have been reported. We report a case of an 8-year-old girl with acute mixed type leukemia who failed to respond 3 times to remission-induction therapy. It led us to conclude she had multidrug resistance. We tried a fourth induction chemotherapy including cytarabine, idarubicin and 6-thioguanine to which cyclosporin-A was added. Then, she showed signs of severe bone marrow depression and fulminant perianal cellulitis. But she recovered and successfully achieved complete remission. The addition of cyclosporine could be useful in achieving complete remission for cases of acute leukemia that resist to usual chemotherapy. Futher observation including more cases will be needed to assess long-term survival and efficacy of adding cyclosporine.
Bone Marrow ; Cellulitis ; Child ; Cyclosporine ; Cytarabine ; Depression ; Drug Resistance ; Drug Resistance, Multiple ; Drug Therapy ; Female ; Humans ; Idarubicin ; Induction Chemotherapy ; Leukemia* ; P-Glycoprotein ; Thioguanine ; Verapamil

Russell-Silver syndrome is characterized by low birth weight, growth retardation, delayed bone age, asymmetry, abnormal sexual development, cranio-facial disproportion, short little finger and clinodactyly. Short stature is the major concern, so there have been interests treating Russell-Silver syndrome with human growth hormone. However, there are no large-scale controlled studies to confirm the effectiveness of growth hormone therapy until now because of the rarity of this disorder. In Korea, we cannot find reports dealing with growth hormone treatment in Russell-Silver syndrome. We present three children with Russell-Silver syndrome who showed accelerated growth with growth hormone treatment.
Child ; Fingers ; Growth Hormone* ; Human Growth Hormone ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; Korea ; Sexual Development ; Silver-Russell Syndrome*

PURPOSE: Bacteremia is one of the major concerns in the treatment of pediatric cancer patients. This study was to determine the etiologic agents and the pattern of antibiotic susceptibilities in a single tertiary medical center. METHODS: We retrospectively reviewed the medical records of the cases of bacteremia in pediatric cancer patients from 1998 to 2005 in Keimyung University Dongsan Medical Center. RESULTS: There were 62 cases of bacteremia from 44 patients. Gram-positive organisms(48.3%) were more common than gram-negative organisms(38.7%) or fungi(13%). Among gram-positive organisms, Staphylococcus epidermidis was the most common etiologic agent(63.3%), followed by Staphylococcus aureus(16.7%), alpha-hemolytic Streptococcus(16.7%), and Streptococcus mitis(3.3%). Among gram-negative organisms, Alcaligenes xylosoxidans was the most common agent(41.7%) and the other organisms were Klebsiella pneumoniae(20.8%), Stenotrophomonas maltophilia(12.5%), Acinetobacter baumanii(8.2%), etc. In febrile neutropenic patients, however, K. pneumoniae was the most common cause of gram-negative bacteremia. All of the isolated K. pneumoniae in our center produced extended-spectrum beta-lactamase and were related with high mortality. S. aureus, S. epidermidis, and Streptococcus species were all susceptible to vancomycin and teicoplanin. Most staphylococci were resistant to penicillin and oxacillin. Most of the gram-negative organisms were susceptible to imipenem. CONCLUSION: Gram-positive organisms were more commonly isolated than gram-negative organisms in pediatric cancer patients like other studies. We could obtained valuable information on the choice of proper antibiotics in our institution. Further studies will be needed to explain the prevalence of A. xylosoxidans in our center.
Acinetobacter ; Alcaligenes ; Anti-Bacterial Agents ; Bacteremia* ; beta-Lactamases ; Child ; Humans ; Imipenem ; Klebsiella ; Medical Records ; Mortality ; Oxacillin ; Penicillins ; Pneumonia ; Prevalence ; Retrospective Studies ; Staphylococcus ; Staphylococcus epidermidis ; Stenotrophomonas ; Streptococcus ; Teicoplanin ; Vancomycin

BACKGROUND: This case-control study concerns a molecular biological method based on the data gathered from a group of Korean subjects to examine the distribution of Malassezia yeasts in seborrheic dermatitis (SD) patients. Cultures for Malassezia yeasts were taken from the foreheads, cheeks and chests of 60 patients with SD and in 60 healthy controls of equivalent age. OBJECTIVE: The purpose of this study is to identify the relationship between certain species of Malassezia and SD. This was done by analyzing the differences in the distribution of Malassezia species in terms of age and body parts of the host with healthy controls. METHODS: 26S rDNA PCR-RFLP, a fast and accurate molecular biological method, was used to overcome the limits of morphological and biochemical methods. RESULTS: The positive Malassezia culture rate was 51.7% in patients with SD, which was lower than that of healthy adults (63.9%). M. restricta was dominant in patients with SD (19.5%). Likewise, M. restricta was identified as a common species (20.5%) in healthy controls. In the ages 31~40, M. restricta was found to be the most common species (31.6%) among SD patients. CONCLUSION: According to the results of the study, the most frequently isolated species was M. restricta (19.5%) in patients with SD. There was no statistically significant difference in the distribution of Malassezia species between the SD patients and healthy control groups.
Adult ; Case-Control Studies ; Cheek ; Dermatitis, Seborrheic ; DNA, Ribosomal ; Epidemiologic Studies ; Forehead ; Human Body ; Humans ; Malassezia ; Thorax ; Yeasts

Cutaneous leiomyoma is a rare benign tumor that originates from the smooth muscles derived from arrector pili muscles, the media of dermal blood vessels and the dartos muscle of the scrotum, vulva or nipples. Piloleiomyomas usually occur in the second to third decades of life with an equal incidence in men and women. They can be solitary, but multiple lesions are seen in 80% of these patients. Although multiple leiomyomas are often grouped, unilateral zosteriform pilar leiomyoma is rare. We report here on a rare case of grouped piloleiomyomas that presented as a zosteriform pattern on the right trunk of a 59-year-old woman.
Blood Vessels ; Female ; Humans ; Incidence ; Leiomyoma ; Male ; Middle Aged ; Muscle, Smooth ; Muscles ; Nipples ; Scrotum ; Vulva

No abstract available.
Adult* ; Humans