Changes of blood pressure, heart rate, ECG, respiration rate and pupil size by intracerebroventricular(ICV) infusion of hypertonic NaCl with 0.04 ml/min for 5 min(total 0.2ml) were observed in urethane-anesthetized rabbits. ICV infusion of 0.75M NaCl produced slight pressor effect (11mmHg) and did not affect other parameters. ICV infusion of 1.5M NaCl began to increase blood pressure from 2~3 min after the infusion and produced maximal increase(24mmHg) at 5~10 min. Then the pressor effect was recovered to the original level at 30~60 min. Change of heart rate by the infusion was not clear, but ST-segment of ECG was markedly depressed. Respiration rate increased about 1.5 times than the control in accordance with the pressor effect and the state was continued even after the recover of the pressor effect. Both pupils dilated markedly and light-reflex was lost. Changes of parameters by ICV infusion of 3.0M NaCl were similar to those by 1.5M NaCl and some rabbits caused severe arrhythmias and died. The purpose of present study is to investigate the mechansim(s) of the pressor effect induced by the ICV infusion of 1.5M NaCl. The pressor effect of 1.5M NaCl was attenuated by the continuous infusion of vasopressin antagonist(20microm/kg/min) but not affected by intravenous treatment with 2mg/kg phentolamine, 2mg/kg propranolol and 1mg/kg chlorisondamine. The pressor effect was not altered with ICV 0.12mg/kg phenoxybenzamine, 0.4mg diltiazem, 0.1mg/kg mecamylamine and 0.2mg/kg atropine. After ICV infusion of 25microg/kg/min of diazepam, however, the pressor effect was completely abolished and restored 3~4 hours after stopping diazepam infusion. The pressor effect was rather potentiated than inhibited in bilateral adrenalectomized or nephrectomized rabbits. Infusion of 2microg/kg/min of saralasin for 10 min in the bliateral adrenalectomized rabbit did not affect the pressor effect at all. These results suggest that hypertensive effect induced by ICV infusion of hypertonic NaCl is mediated by the increase of vasopressin secretion.
Arrhythmias, Cardiac ; Atropine ; Blood Pressure ; Chlorisondamine ; Diazepam ; Diltiazem ; Electrocardiography ; Heart Rate ; Infusions, Intraventricular* ; Mecamylamine ; Phenoxybenzamine ; Phentolamine ; Propranolol ; Pupil ; Rabbits* ; Respiratory Rate ; Saralasin ; Vasopressins

There are three major type of malignant melanoma which differ in their mode of onset, course; lentigo maligna melanoma, superficial spreading malignant melanoma and nodular malignant melanoma. Malignant melanoma may aris on apparently normal skin, in a junction nevus, rarely in a compound nevus and extremely rately in an intradermal nevus. We presented a case of malignant melanoma arising from compoud nevus in 51 year old male patient. Ulcerated verrucous walnut sized brown-black tumor mass was nticed on the posterolateral surface of right foot. There were no palpable lymph nodes in whole body. Tumor cells were epithelioid type and lie in irregularly alveolar formation histologically. There were also numerous nevus cells in dermis and nevus cell nest in lower epidermis with tumor cells. Surgical excision of tumor mass and skin graft was performed.
Dermis ; Epidermis ; Foot ; Humans ; Hutchinson's Melanotic Freckle ; Juglans ; Lymph Nodes ; Male ; Melanoma ; Middle Aged ; Nevus* ; Nevus, Intradermal ; Skin ; Transplants ; Ulcer

Erythromelalgia is a rare disease characterized by burning pain of the extremities associated with erythema and increased temperature of the skin. A case of erythromelalgia was reported with review of literatures. It seemed that this is the first reported case in Korean literatures. patient was 12 years old male having erythematous swelling associated with burning pain on his feet and lower legs for five years. Immersion of his feet in warm water quickly, increased the pain but cold water gave prompt relief that he soaked his feet for many hours during the day and night. No specific abnormalities were noticed in Iaboratory studies, Treatment with various topical, systemic medication revealed of unfavorable result.
Burns ; Child ; Erythema ; Erythromelalgia* ; Extremities ; Foot ; Humans ; Immersion ; Leg ; Male ; Rare Diseases ; Skin ; Water

We observed three patients who showed widespread macular ashy-colored eruptions. They fit clinically and histopathologically with the typical erythema dyschromicum perstans (ashy dermatosis). Erythoma dyschromicum perstans is a peculiar pigmented condition of unknown etiology characterized by persistent ashy-gray colored macule, refractory to any modality. All of them have similar skin lesions which are multiple, variable sized oval-shaped, ash-colored macular eruption on the trunk and extremities. Histologic findings of 2 patients reveal the characteristic feature of focal hydropic degeneration of the basal cell layer of the epidermis, perivascular infiltrates of lymphocytes and histiocytes and melanin-laden macrophages in the corium, however, merely pigmentary incontinence into the corium in 1 patient. Literatures are briefly reviewed.
Dermis ; Epidermis ; Erythema* ; Extremities ; Histiocytes ; Humans ; Lymphocytes ; Macrophages ; Skin

The basic pathophysiology of vitiligo is still obscure. Most researchers emphasized that poasible immunologic role is very important in pathophysiology of vitiligo. Also the type of vitiligo is classified by various type baaed on clinical manifestations. These facts promoted us to analyse the immunologic state in each type of vitiligo in order to verify whether there is present any immunologic alteration in this permatosis or any differences of immune state in each type of vitiligo. The following immune cells were analysed, T cell, B cell, and T cell subsets such as helper T cell and suppresaor T cell. Vitiligo vulgaris in our study showed alteration of immune cell such as low level of T cell and helper T cell.
B-Lymphocytes* ; T-Lymphocyte Subsets* ; Vitiligo*

Nevus lipomatosus cutaneus superficialis is a very rare skin disease which appears at birth or within the firat two decades of life. This uncommon condition is due to collections of ectopic fat cells within the upper and mid-dermis. There are two clinical forms. The first form is a lesion of zonal distribution, present from birth or childhood, usually on the buttocks or the lower back. The second form, a dome or sessile, papule, begins in adult life and is less restricted in distribution, and occurs also on the limbs Coalescence of soft, yellowish papules tends to form cerebriform plaques. The authors experienced two cases of typical nevus lipomatosus cutaneus superficialis. The first case was a 23-year male who had asymptomatic, soft, skin colored, and pea sized confluent nodules on the right lower back area since at birth. The second case was a 35-year female who had asymptomatic, multiple, soft, skin colored from rice to walnut sized confluent nodules on the coccygeal area which developed at the age of 27. Diagnosis was confirmed by clinical and histopathological findings.
Adipocytes ; Adult ; Buttocks ; Diagnosis ; Extremities ; Female ; Fluconazole ; Humans ; Juglans ; Male ; Nevus* ; Parturition ; Peas ; Skin ; Skin Diseases

Epidermolytic hyperkeratosis is a rare disease which is extremely variable in its severity. In some patients it may be so severe and generalized during the neonatal period as to be lifethreatening, in others, it is relatively inconspicuous. A bullous eruption is the characteristic finding of the epidermolytic hyperkeratosis The bullous episodes soon become less frequent and more localized and may eventually cesse, but continue into adult life after the age of 20 years in at least 20% of cases. A case of epidermolytic hyperkeratosis is represented. The patient was a 25-year-old male who had ichthyosiform erythroderma and the frequent episades of bullous eruption. The bullous eruption had been subsided under the treatment with oral penicillin administration. The histopathological features of the bullous lesion on his abdomen revealed the features of epidermolytic hyperkeratosis.
Abdomen ; Adult ; Blister ; Dermatitis, Exfoliative ; Humans ; Hyperkeratosis, Epidermolytic* ; Male ; Penicillins ; Rare Diseases

No abstract available.
Arthrodesis* ; Femur* ; Giant Cell Tumors* ; Giant Cells* ; Transplants*

No abstract available.

No abstract available.
Leg* ; Myocutaneous Flap*