A 24-year-old man presented with a 1.5 × 0.5 cm-sized erythematous nodule with central crust on the forehead since 5 years ago. There was no history of trauma or previous skin disorders. Histopathologic examination showed a typical picture of osteoma cutis. In addition, transepidermal elimination of bony material was observed: red linear plate-like calcified lamella structures had extruded to the skin surface through the perforated epidermis. The perforating type of osteoma cutis was discussed.
Epidermis ; Forehead ; Humans ; Osteoma* ; Skin ; Young Adult

BACKGROUND: The distribution of Malassezia yeasts on normal human skin was varied according to the age and race of the volunteers and the methodologies used. In Korea, most reports of Malassezia yeast distribution have relied on direct skin smears rather than culture methods. OBJECTIVE: The aim of this work was to perform a comprehensive survey of the distribution of Malassezia yeasts on normal human skin to provide a base line for a companion study of Malassezia yeasts in patients with various dermatoses. METHODS: Malassezia yeasts were cultured using the swabbing technique from the scalp, forehead, chest, upper back, upper arm and upper thigh in 137 subjects, infancy to 80 years of age. RESULTS: Malassezia yeasts were present in the lowest incidence(0-30%) on six sites of infants and present in 60.0-66.7% on the sebum-rich sites (scalp, forehead, chest, upper back) of children aged 1-9. Malassezia yeasts were present in 80.0-86.7% on the sebum-rich sites of the elderly group(over 60 years of age), about the same frequency as in the middle-aged groups. The population density of these organisms was significantly higher on the upper back than on the forehead, chest, upper arm and upper thigh in all age groups except the infant group and the group aged 1 to 9 (p<0.05). There were no regular quantitative variations in the distribution of Malassezia yeasts on a given site between age groups. On Leeming and Notman media, besides three morphotypes of Malassezia yeasts reported by Cunningham et al(1990), one additional type was identified. CONCLUSION: The results showed regional variations in the distribution of Malassezia yeasts in all ages except infancy and no regular age variations on a given site. Additionally, four colony types of Malassezia yeasts were found. The findings of our study coold help to investigate the role of Malassezia yeasts in related disorders.
Aged ; Arm ; Child ; Continental Population Groups ; Forehead ; Friends ; Humans* ; Infant ; Korea ; Malassezia* ; Population Density ; Scalp ; Skin Diseases ; Skin* ; Thigh ; Thorax ; Volunteers ; Yeasts*

BACKGROUND: Cutaneous vasculitis associated with viral hepatitis seems to occur as a hypersensitivity reaction against the circulating viral antigens. Hepatitis B virus(HBV)-encoded X antigen(HBxAg) is known to participate in the carcinogenesis of hepatocellular carcinoma(HCC) by the inactivation of p53. However, HBxAg has been found in chronic infiammatory lesions without the overexpression of p53. Accordingly, not only EBsAg and HBcAg but also HBxAg may be involved in HCC-associated cutaneous vasculitis, regardless of the alteration of p53. OBJECTIVE: This study was conducted to investigate the expression of HBV-encoded antigens in cutaneous vasculitis accompanied by HBV hepatopathy. Additionally, we have compared the expression of 3 HBV antigens and p53 between vasculitic patients with HCC and in others showing HCC-non-associated vasculitis. METHODS: Immunohistochemically, we examined the expression of HBsAg, HBcAg, and HBxAg in the tissue specimens taken from the vasculitic lesions of the 33 HBsAg-positive enrolled patients with cutaneous vasculitis proven by skin biopsy. RESULTS: 1. The immunohistochemical positivity rate to HBsAg in vasculitic patients with HBV hepatopathy was 66.7% overall. It was 90% in HCC-associated vasculitic subjects and 56.5% in the vasculitic subjects without HCC, respectively. 2. We found the expression of HBxAg in 80% of the vasculitic subjects showing HCC. The vasculitic patients without HCC showed 17,3% of the positivity rate to HBxAg. 3. We could not find the overexpression of p53 in the vasculitic tissue specimens of the HCC patients without the cutaneous metastasis from primary HCC. CONCLUSION: HBsAg, HBcAg and HBxAg may participate in the pathogenesis of cutaneous vasculitis with HBV hepatopathy, regardless of tumorigenesis.
Antigens, Viral ; Biopsy ; Carcinogenesis ; Hepatitis ; Hepatitis B ; Hepatitis B Core Antigens ; Hepatitis B Surface Antigens ; Humans* ; Hypersensitivity ; Malassezia* ; Neoplasm Metastasis ; Skin* ; Vasculitis ; Yeasts*

BACKGROUND: Pityriasis versicolor(PV) is a superficial mycosis, theoretically unusual in children. Epidemiologic and clinical data for children with PV under 14 years were collected. OBJECTIVE: The purpose of this study was to evaluate the clinical features of PV in the young. METHOD: We included all cases of PV in patients under 14 years of age observed in our department from 1981 to 1995. All cases were diagnosed on the basis of clinical criteria and were confirmed by microscopic examination. RESULTS: From 1981 to 1995 we encountered 32 cases of PV in children, compared with 637 cases in adults; thus children represented 4.7% of all cases. The ratio of male to female was l. 7:1. Among the age groups, the incidence was the highest in the 10-14 years(43%). The monthly prevalence was the highest in August. Distribution of the lesions were the face(40.9%), neck (25%), chest(13.6%), back(11.3%), extremities(6.8%) and abdomen(2.2%). The incidence of hypopigmented lesions was 70.4% and that of hyperpigmented lesions was 29.6%. CONCLUSION: This study confirms that the face is a predilectionl site for PV in children and all facial lesions are hypopigmented. Other clinical features are variable and similar to those of adults.
Adult ; Child ; Female ; Humans ; Incidence ; Male ; Neck ; Pityriasis* ; Prevalence ; Tinea Versicolor*

No abstract available.
Orchiectomy* ; Testis*

The authors experienced six patients who were admitted in Department of Orthopedic Surgery at Seoul National University Hospital during the period of March 1966 to February 1976 with cystic lesions in calcaneus by radiographic findings. The following results were obtained. Among the six patients, four were osteomyelitis, one was eosinophilic granuloma and the other was fibromyxoid sarcoma. They were all similar in radiographic findings, but were different each other in pathologic findings. 2. Diagnosis is very difficult only with the patients history, hematologic and radiographic findings and the pathologic findings is the most important in the final confirmative diagnosis from benign cystic lesions to malignant one. 3. We describe about the kinds and points of the differential diagnosis. of the other discases from the reported six cases.
Calcaneus ; Diagnosis ; Diagnosis, Differential ; Eosinophilic Granuloma ; Humans ; Orthopedics ; Osteomyelitis ; Sarcoma ; Seoul

No abstract available in English.
Arm

Fatty tumours are,the most common soft tissue tumours whereas they are among the rarest tumours in bone. Dahlin quoted an incidence of 1 in 1, 000 of all bone tumours, and fatty tumours in bone are almost single intraosseous lipoma and of four types; I. Soft tissue lipomata or liposarcomata, secondarily affecting bone. 2. Parosteal lipomata. 3. Intraosseous lipomata. 4. Liposarcoma of bone. Here we report a case of multiple intraosseous lipomas in a 23 year old woman.
Female ; Humans ; Incidence ; Lipoma ; Liposarcoma

Ten cases of fracture of the carpal scaphoid analysed clinically and treated by admission at Department of Orthopedic Surgery, National Police Hospital during the period of 1975 to 1980. The results were summerized as follows: 1. The mode of the injury were consist of 3 in football game, 2 in judo, 2 in army training and 1 in fallen from height, 1 in slipping down, 1 in direct blow and almost falling down by outstretched hand. 2. Of the 10 cases, there were 9 male and 1 female patients. This result showed marked predominence of male over female patients and most commonly occured between 20 and 29 of age. 3. In 8 cases, the fracture was found on the waist of the carpal scaphoid. 4. Nonunion of the carpal scaphoid were noticed in 8 cases. 5. 2 cases of the recent fracture, there were appeared by rechecking X.-ray after 2 weeks. 6. The good results were obtained by bone graft according to method of Russe.
Accidental Falls ; Clinical Study ; Female ; Football ; Hand ; Humans ; Male ; Martial Arts ; Methods ; Orthopedics ; Police ; Transplants

No abstract available.