The clinical and pathological features of trichoadenoma are presented. Trichoadenoma is very rare, and as far as we know, no report on the trichoadenoma has been published in korea literature. We experienced a case of trichoadenoma occured in a 29 year-old male, who had a 0.9x0.7x0.4cm sized and slowly growing mass in the right buttock. The histopathological findings and histogenesis of trichoadenoma were discussed and a brief review of the literature was made.

Sebaceous epithelioma is a relatively rare tumor, mostly occuring in the face or scalp. The histogenesis and clinical and pathological features of sebaceous epithelioma have not been clearly defined, and a few other diagnostic terms have been used so far instead of sebaceous epithelioma. Two cases of sebacous epitheliomas were presented. No recurrence or metastasis was observed in our cases, so sebaceous epithelioma is considered to be a benign tumor. A brief review of the literature, concerned about the biological behavior, histogenesis and pathological findings of the sebaceous epithelioma, was made.
Neoplasm Metastasis

No abstract available.
Ovarian Neoplasms* ; Survival Analysis*

No abstract available.
Animals ; Muscle, Smooth, Vascular* ; Nitric Oxide* ; Rats*

BACKGROUND: The need for using sunscreen is increasing today, but we know little about the effect of sunscreens on the skin of Korean people. OBJECTIVE: We tried to estimate and compare the SPF of 8% homomenthyl salicylate lotion, which was recommended as the control in SPF experiments by the FDA, USA, in Koreans according to different light sources. METHODS: After application of 8% homomenthyl salicylate lotion to the back, 33 men of the third decade were irradiated by xenon arc solar simulator or by fluorescent sunlamp, We estimated the SPF of them 24 hours later. RESULTS: The SPF of 8% homomenthyl salicylate lotion was 4.8+/-0.8 with the solar simulator, 2.7+/-0.6 with the fluorescent sunlamp. CONCLUSION: We confimed that the SPF of 8% homomenthyl salicylate lotion with xenon arc solar simulator can be used as a control value in Koreans, and found out that the SPF with the fluorescent sunlamp was significantly lower than that with the xenon arc lamp. So it should be taken into consideration that differences of SPF according to light sources exists in studying sunscreens.
Humans ; Male ; Skin ; Solar System* ; Sun Protection Factor* ; Sunscreening Agents ; Xenon

BACKGROUND: The need for using sunscreen is increasing today, but we know little about the effect of sunscreens on the skin of Korean people. OBJECTIVE: We tried to estimate and compare the SPF of 8% homomenthyl salicylate lotion, which was recommended as the control in SPF experiments by the FDA, USA, in Koreans according to different light sources. METHODS: After application of 8% homomenthyl salicylate lotion to the back, 33 men of the third decade were irradiated by xenon arc solar simulator or by fluorescent sunlamp, We estimated the SPF of them 24 hours later. RESULTS: The SPF of 8% homomenthyl salicylate lotion was 4.8+/-0.8 with the solar simulator, 2.7+/-0.6 with the fluorescent sunlamp. CONCLUSION: We confimed that the SPF of 8% homomenthyl salicylate lotion with xenon arc solar simulator can be used as a control value in Koreans, and found out that the SPF with the fluorescent sunlamp was significantly lower than that with the xenon arc lamp. So it should be taken into consideration that differences of SPF according to light sources exists in studying sunscreens.
Humans ; Male ; Skin ; Solar System* ; Sun Protection Factor* ; Sunscreening Agents ; Xenon

PURPOSE:The purpose of this study is to assess the pulmonary airway reactivity in asthmatic patients directly and noninvasively by using high-resolution CT(HRCT). MATERIALS AND METHODS: 130 bronchial luminal areas were measured by HRCT in 16 asthmatic patients before and after inhalation of bronchodilator (Salbutamol sulfate). The change of bronchial luminal area on HRCT was analyzed and correlated with the change of forced expiratory volume in 1 second(FEV1) on pulmonary function test in each patient. RESULTS: The mean percentage of increase in luminal areas of the 130 bronchi after bronchodilator inhalation was 95.4 +/- 103.3%. The group with the smallest luminal areas (lesser than 1.35mm2) was more sensitively increased in area than the group with the largest areas (equal or larger than 3.72 mm2) ;183.5% versus 63.5%. The mean percentage of increase in FEV1 was 21.7% and there was no statistically significant correlation between the increased degrees of luminal areas and that of FEV1(r=-0.04). CONCLUSION:We can measure the bronchial luminal area directly and noninvasively with HRCT and can also estimate the degree of airway reactivity in asthmatic patient by measuring of the changes of bronchial luminal areas after administration of bronchodilator.
Asthma* ; Bronchi ; Forced Expiratory Volume ; Humans ; Inhalation ; Phenobarbital ; Respiratory Function Tests

Xanthomas are benign lesions characterized by the aggregation of lipid-laden histiocytes and foamy cells within tissues. Intraosseous xanthomas (IOXs), especially those in the jaw bone, are rare, with only around 50 cases documented. This case report describes an IOX located at an osteotomy site in the mandible during sagittal split ramus osteotomy (SSRO). Preoperative radiographs revealed a heterogenic radiolucent-radiopaque lesion in the right ramus. After meticulous curettage of the lesion, proximal and distal segments were fixed in the semi-rigid plates and screws. At the one-year followup, radiographs showed excellent bony union between proximal and distal segments, with no significant interval change. IOXs rarely occur in the jaw.However, their predilection for the posterior mandible suggests that such lesions can be encountered during orthognathic surgery. This report demonstrates the feasibility of performing SSRO directly through the lesion with concurrent curettage without compromising surgical outcomes. This case will contribute to the limited literature on IOX of the jaw bone and its treatment via SSRO as a feasible surgical option in concomitant orthognathic surgery.

Xanthomas are benign lesions characterized by the aggregation of lipid-laden histiocytes and foamy cells within tissues. Intraosseous xanthomas (IOXs), especially those in the jaw bone, are rare, with only around 50 cases documented. This case report describes an IOX located at an osteotomy site in the mandible during sagittal split ramus osteotomy (SSRO). Preoperative radiographs revealed a heterogenic radiolucent-radiopaque lesion in the right ramus. After meticulous curettage of the lesion, proximal and distal segments were fixed in the semi-rigid plates and screws. At the one-year followup, radiographs showed excellent bony union between proximal and distal segments, with no significant interval change. IOXs rarely occur in the jaw.However, their predilection for the posterior mandible suggests that such lesions can be encountered during orthognathic surgery. This report demonstrates the feasibility of performing SSRO directly through the lesion with concurrent curettage without compromising surgical outcomes. This case will contribute to the limited literature on IOX of the jaw bone and its treatment via SSRO as a feasible surgical option in concomitant orthognathic surgery.

Xanthomas are benign lesions characterized by the aggregation of lipid-laden histiocytes and foamy cells within tissues. Intraosseous xanthomas (IOXs), especially those in the jaw bone, are rare, with only around 50 cases documented. This case report describes an IOX located at an osteotomy site in the mandible during sagittal split ramus osteotomy (SSRO). Preoperative radiographs revealed a heterogenic radiolucent-radiopaque lesion in the right ramus. After meticulous curettage of the lesion, proximal and distal segments were fixed in the semi-rigid plates and screws. At the one-year followup, radiographs showed excellent bony union between proximal and distal segments, with no significant interval change. IOXs rarely occur in the jaw.However, their predilection for the posterior mandible suggests that such lesions can be encountered during orthognathic surgery. This report demonstrates the feasibility of performing SSRO directly through the lesion with concurrent curettage without compromising surgical outcomes. This case will contribute to the limited literature on IOX of the jaw bone and its treatment via SSRO as a feasible surgical option in concomitant orthognathic surgery.