BACKGROUND: Previous studies suggested that Pityrosporum may play an important role in the pathogenesis of dandruff. OBJECTIVE: Our purpose was to study the statistical and mycobgic findings of dandruff in normal subjects for better understanding of this condition. MEHTODS: Scales frorn the scalp of 384 students were studied stastistically by answer sheets and clinically by a dermatologist. Mycologic studies of Pityrosporum were also performed by direct smear, culture and inoculation to guinea pigs. RESULTS: There were 76.0% subjects with dandruff. Clinically grading the subjects by Kligrnan's scale, grade III and IV(mild caling) were the most. Dandruff developed commonly at the age of 14 to 16, and no seasonal change was observed. Spores of Pityrosporum were observed in all subjects by KOH microscopic examination with Cohens method, and the grading of the dandruff was not related with the number of the spores. In most subjects, P. orbiculare and P. ovae were found together. Positive culture colonies were observed in 93.7%. Inoculation of the cultured colonies to guinea pigs resulted in an experimental dermatitis. CONCLUSION: Our study shows that Pityrosporum may involve in the pathogenesis of dandruff; however, it is still unclear whether Pityrosporum is a main causative agent of dandruff.
Animals ; Dandruff* ; Dermatitis ; Guinea Pigs ; Humans ; Malassezia ; Ovum ; Scalp ; Seasons ; Spores ; Weights and Measures

BACKGROUND: Seborrheic dermatitis is a very common chronic inflammatory disease. Previous studies suggested that, Pityrosporum, lipophilic fungi, may play an important role in the pathogenesis of the disease. OBJECTIVE: The purpose of this study was to investigate the disease clinically and mycologically for better understanding of the pathogenesis. METHODS: Two hundred and one new patient.s with seborrheic dermatitis of the scalp and 67 norrnal subjects were obs!,rved clinically by the dermatologist and studied stat,istically by questionnaires. A mycologic study of Pityrosporum was also performed by direct smear. RESULTS: Among a total of 201 patients wit,h seborrheic dermatitis, 72.6% had pityriasis sicca, 10.5% had pityr iasis steartoides and 16.9% had inflammatory seborrheic dermatitis. On clinical grading by the Kligman.. scale, grade III(slightly scaling) was the most common in the patients and 52.6% of the norma. subjects were below grade II (no scaling). Spores of Pityrosporum were observed in 76.7% of the patients and 91.5% of the normal subjects. The incidence of Pityrosporum was lower particularly in t,he patients with inflammatory seborrheic dermatitis t,han in other pa~tients groups. CONCLUSION: According to the results of the study, it, is difficult to conclude that Pityrosporum is a main causative ager t of seborrheic dermatitis. In addition, it is thought t.hat further studies of the role of Pityrosporum in seborrheic dermatitis are needed.
Dermatitis, Seborrheic* ; Fungi ; Humans ; Incidence ; Malassezia* ; Pityriasis ; Scalp* ; Spores ; Surveys and Questionnaires

BACKGROUND: Seborrheic dermatitis is a very common chronic inflammatory disease. Previous studies suggested that, Pityrosporum, lipophilic fungi, may play an important role in the pathogenesis of the disease. OBJECTIVE: The purpose of this study was to investigate the disease clinically and mycologically for better understanding of the pathogenesis. METHODS: Two hundred and one new patient.s with seborrheic dermatitis of the scalp and 67 norrnal subjects were obs!,rved clinically by the dermatologist and studied stat,istically by questionnaires. A mycologic study of Pityrosporum was also performed by direct smear. RESULTS: Among a total of 201 patients wit,h seborrheic dermatitis, 72.6% had pityriasis sicca, 10.5% had pityr iasis steartoides and 16.9% had inflammatory seborrheic dermatitis. On clinical grading by the Kligman.. scale, grade III(slightly scaling) was the most common in the patients and 52.6% of the norma. subjects were below grade II (no scaling). Spores of Pityrosporum were observed in 76.7% of the patients and 91.5% of the normal subjects. The incidence of Pityrosporum was lower particularly in t,he patients with inflammatory seborrheic dermatitis t,han in other pa~tients groups. CONCLUSION: According to the results of the study, it, is difficult to conclude that Pityrosporum is a main causative ager t of seborrheic dermatitis. In addition, it is thought t.hat further studies of the role of Pityrosporum in seborrheic dermatitis are needed.
Dermatitis, Seborrheic* ; Fungi ; Humans ; Incidence ; Malassezia* ; Pityriasis ; Scalp* ; Spores ; Surveys and Questionnaires

No abstract available.
Trichosporon*

Angiocentric lymphoma is a lymphoma like lesion which has been known as a lethal midline granuloma, lymphomatoid granulomatosis and polymorphic reticulosis. It involves predominantly lungs, and other extranodal sites such as upper respiratory tract, skin, kidneys, peripheral nervous system and CNS. The authors experienced a case of angiocentric lymphoma which was misdiagnosed as orbital cellulitis because there were persistent epiphora, erythematous swelling in dacryocyst area and diffuse edema in upper and lower eyelids which occurred after functional endoscopic sinus surgery. This case was diagnosised as angiocentric lymphoma through multiple tissue biopsies. This disease is rare, especially in orbit and eyelid. It leads to the destruction and inflammation of tissue. To avoid misdiagnosis to orbital cellulitis, accurate biopsy is needed with the interchange of clinical informations with pathologist. We report this case with the review of literatures.
Biopsy ; Diagnosis ; Diagnostic Errors ; Edema ; Eyelids ; Granuloma, Lethal Midline ; Inflammation ; Kidney ; Lacrimal Apparatus Diseases ; Lung ; Lymphoma* ; Lymphomatoid Granulomatosis ; Orbit ; Orbital Cellulitis ; Peripheral Nervous System ; Respiratory System ; Skin

PURPOSE: The therapeutic dose of cytokine for patients with advanced renal cell carcinoma is very high and leads to toxic side effects and a substantial cost to the patients. Interleukin-2(IL-2) could be released continuously and slowly in the host by genetic engineering of IL-2 genes and increase host immunity with decreasing the a verse effects of the drug. We investigated the IL-2 gene expression, amplification of viral titer, and transduction of IL-2 gene into human renal cell carcinoma cell line with retroviral vectors. MATERIALS AND METHODS: For the production of retroviral vectors with the IL-2 gene, we used PA-317 as a packaging cell and Caki-2 as a renal cell carcinoma cell. Retroviral supernatants were added to culture flask containing Caki-2 cells and after 48 hours, replacement with a media containing G418(Gibco, Grand Island, NY) 800 microgram/m1 was done for selection of transfected colonies. The selected colonies were cultured and then measured the amount of IL-2 production per 1xl0(6) for 24 hours using an ELISA assay kit(BioSource International, USA) for IL-2. RESULTS: Thirteen colonies were selected and the amount of IL-2 production was 143.1 +/-75.3pg/m1/10(6) cells/24hr(range: 51.5-370.7). CONCLUSIONS: The success of transduction of the IL-2 gene into human renal cell carcinoma cell lines with a retroviral vector will give a possibility in gene therapy for advanced renal cell carcinoma and may have promising results
Carcinoma, Renal Cell* ; Cell Line* ; Enzyme-Linked Immunosorbent Assay ; Gene Expression ; Genetic Engineering ; Genetic Therapy ; Humans* ; Interleukin-2* ; Product Packaging ; Zidovudine*

Herein, we describe the first case of renal intravascular large B cell lymphoma in Korea occurring in a 66-year-old female. She presented with mild fever and dyspnea. On physical and laboratory evaluations, hemophagocytic lymphohistiocytosis was suspected, but the bone marrow biopsy results were unremarkable. During the work-up, massive proteinuria developed, which led to a renal biopsy. The renal architecture was relatively well-preserved, but the glomeruli were hypercellular with the infiltration of atypical, large lymphoid cells with increased nucleus-cytoplasm ratio and clumped chromatin. Similar cells were also present in the peritubular capillaries. The tumor cells exhibited membranous staining for CD20 and CD79a. After the diagnosis of intravascular large B cell lymphoma, the patient received rituximab-based chemotherapy under close follow-up.

BACKGROUND: Seborrheic dermatitis and atopic dermatitis are clinically different diseases, but symptoms and signs of both seborrheic dermatitis and atopic dermatitis often can be found simultaneously in one patient. OBJECTIVE: The aim of this study was to (1) investigate if patients with either seborrheic dermatitis or atopic dermatitis have the symptoms and signs of both disease entities at the same time, and (2) study the relationship between Malassezia species on the scalp and each of the diseases. METHOD: Eighty five patients with seborrheic dermatitis on the scalp, the Pityriasis sicca type, and 79 patients with atopic dermatitis and 76 normal subjects were observed clinically by the dermatologist and studied statistically using questionaires. A mycological study of Malassezia species was also performed by direct smearing. RESULT: Among the 21 items of questionaires regarding the symptoms and signs of seborrheic dermatitis, the patients with atopic dermatitis showed higher incidences in 7 items compared with normal subjects, and among the 22 items of questionaires regarding the symptoms and signs of atopic dermatitis, the patients with seborrheic dermatitis showed higher incidences in 2 items than the normal subjects. The patients regarded their skin conditions as follows : the mixed state of dried and oily skin was in 32.9% of the patients with atopic dermatitis, 42.4% of those with seborrheic dermatitis, and 43.4% of the normal subjects. On clinical grading by the Kligman's scale, the most common grade was below grade II(no scaling) in patients with atopic dermatitis and grade III(slight scaling) in patients with seborrheic dermatitis, respectively. The spores of Malassezia species were found in 83.6% of the patients with atopic dermatitis, 96.2% of those with seborrheic dermatitis, and 90.6% of the normal subjects. CONCLUSION: According to the results of the study, the patients with atopic dermatitis showed higher incidences of symptoms and signs of seborrheic dermatitis than normal subjects and there was no difference in the number of spores and hyphae of Malassezia species among the three groups. Further studies will be needed to elucidate the relationship between sebonheic dermatitis and atopic dermatitis.
Dermatitis ; Dermatitis, Atopic* ; Dermatitis, Seborrheic* ; Humans ; Hyphae ; Incidence ; Malassezia* ; Pityriasis ; Scalp ; Skin ; Spores ; Surveys and Questionnaires

BACKGROUND AND PURPOSE: Blepharospasm (BSP) and apraxia of eyelid opening (AEO) have been reported as dystonia related with parkinsonism. However, systematic analysis of clinical characteristics of BSP and AEO in parkinsonism has been seldom reported. To investigate the clinical characteristics of BSP and AEO in parkinsonism and to find out the clinical significance to differentiate parkinsonism. METHODS: We enrolled 35 patients who had BSP with or without AEO out of 1113 patients with parkinsonism (913 IPD, idiopathic Parkinson's disease; 190 MSA, multiple system atrophy, 134 MSA-p, 56 MSA-c and 10 PSP, progressive supranuclear palsy). We subdivided MSA into MSA-p (predominantly parkinsonism) and MSA-c (predominantly cerebellar) according to the diagnostic criteria proposed by Quinn. We analyzed the clinical features of BSP and parkinsonism including onset age, onset interval to BSP, characteristics of BSP, presence of AEO, coexisted dystonias on the other body parts, severity of parkinsonism and relationship with levodopa treatment. RESULTS: BSP with or without AEO were more frequently observed in atypical parkinsonism (PSP, 70%; MSA-p, 11.2%; MSA-c, 8.9%) than in IPD (0.9%). Reflex BSP was observed only in atypical parkinsonism (4 MSA-p, 1 MSA-c and 2 PSP). BSP preceding parkinsonism (Pre-BSP) was observed mainly in atypical parkinsonism (2 MSA-p, 1 MSA-c, 1 PSP and 1 IPD). The presence of AEO was more frequent in atypical parkinsonism than in IPD, but isolated AEO was not detected. BSP related to levodopa ('off' symptom or 'peak-dose' effect) were observed only in IPD. CONCLUSIONS: Reflex BSP, Pre-BSP and the presence of AEO may be a unique feature of atypical parkinsonism. BSP related to levodopa might be representative of IPD. No differences were found in the clinical features of BSP between MSA-p and MSA-c.
Age of Onset ; Apraxias* ; Blepharospasm* ; Dystonia ; Eyelids* ; Human Body ; Humans ; Levodopa ; Multiple System Atrophy ; Parkinson Disease ; Parkinsonian Disorders* ; Reflex

BACKGROUND: There are several studies about the relationship between serum homocysteine levels and bone mineral density (BMD), but the results are varied, and the studies are limited in Korea. In our study, the relationship between serum homocysteine levels and BMD by part according to age and sex is investigated. METHODS: From March 2012 to July 2015, the 3,337 healthy adults who took a medical examination were recruited. Subjects filled in the self-recording type questionnaire and physical examination, blood test, BMD of lumbar spine and femur were measured. After sorting by aging (≤49 year old, 50-59 year old, ≥60 year old) and sex, the results were adjusted with age and body mass index (BMI) and the relationship between serum homocysteine levels and BMD by lumbar spine and femur was analyzed by multiple regression analysis. RESULTS: As results of analysis, with the adjustment with age and BMI, all age groups of men had no significant relationship between log-converted serum homocysteine levels and BMD. In women aged under 50, there were significantly negative relationships at lumbar spine (β=-0.028, P=0.038), femur neck (β=-0.062, P=0.001), and total hip (β=-0.076, P<0.001), but there was no significant relationship in other age groups (50-59 year old and ≥60 year old). CONCLUSIONS: As the serum homocysteine levels increased in women aged under 50, BMD of the lumbar spine and femur decreased, and correlations between homocysteine and BMD were different by sex and age.
Adult* ; Aging ; Body Mass Index ; Bone Density* ; Female ; Femur ; Femur Neck ; Hematologic Tests ; Hip ; Homocysteine* ; Humans ; Korea ; Male ; Osteoporosis ; Physical Examination ; Spine