No abstract available.
Schizophrenia*

Helicobacter pylori(H. pylori) infection is considered the most important cause of chronic active gastritis and peptic ulcer. To determine the prevalence, distribution and it's relationship to degree of inflammation, gastric biopsy specimens were obtained from 331 nonulcer dyspepsia(NUD) patients consisting of 52 H. pylori negative normal volunteers and 279 H. pylori infected patients. Lymphoid follicles, degree of acute and chronic inflammation(Grade 0 to 3), and degree of H. pylori(Grade 0 to 4) were observed. The prevalence of H. pylori in NUD was 84.29%. The lymphoid follicles were found in 138 patients(41.7%) and only 5 patients(l.5%) without H. pylori showed lymphoid follicles. There was strong a relationship between lymphoid follicles and degree of acute and chronic inflammation and intensity of H. pylori infection(P<0.001). Acute and chronic inflammation were more serious in the antrum than body in H. pylori infected patients. There was no relationship between lymphoid follicles and the site in the stomach of H. pylori infection(P<0.078), but the body portion had an increased frequency of lymphoid follicles compared to the in antrum. Our results indicate that the prevalence of H. pylori infection in Korea is higher than in Western people and the degree of acute and chronic inflammation are strongly correlated with the presence of lymphoid follicles. The lymphoid follicles are believed to be absent from the normal stomach and their presence is strongly associated with H. pylori infection. The fact there is an that increased frequency of lymphoid follicles in H. pylori infected patients, and that they are more prevalent in the body of the antrum, support the concept that H. pylori may be a precursor in the development of primary gastric lymphoma.
Biopsy

No abstract available.
Cellulitis* ; Klebsiella pneumoniae* ; Osteomyelitis*

Spindle cell hemangioendothelioma was first described in 1986 by Weiss and Enzinger as a low grade angiosarcoma resr mbling a cavernous hemangioma and kaposis sarcoma. Recently, it is suggested to be non neoplastic lesion or reactive process arising from pre-existing vascular mal- formation. We report a case of spindle cell hemangioendothelioma in a 9-month-old boy. He had multiple, variable sized, colorful, cutaneous or subcutaneous nodules on the forearm and hand. The tumor first appeared on the forearm as erythematous patches at birth and grew rapidly with- in 3 months. Histopatholgical findings showed that the lesion was composed of thin walled cavernous spaces mixed with spindle cells and occasional epithelioid endothelial cells containing intracytoplasmic vacuole. Most af the endothelial cells lining the cavernous spaces and intracytoplasmic lumina, were positive for factor VIII associated antigen. But the spindle cells were negative. Atypical vascular structures resembling arteriovenous shunts were noted around the tumor suggesting a reactive proliferation due to disturbance of local blood flow. Several turnors were excised. No recurrence has been recognized in the one year- follow-up period.
Endothelial Cells ; Factor VIII ; Follow-Up Studies ; Forearm ; Hand ; Hemangioendothelioma* ; Hemangioma, Cavernous ; Hemangiosarcoma ; Humans ; Infant ; Male ; Parturition ; Recurrence ; Sarcoma, Kaposi ; Vacuoles

BACKGROUND: The bcl-2 is a newly known oncogene involved in tumorigenisis by blocking apoptosis or programmed cell death. Overexpression of bcl-2 protein has been detected in a variety of human malignancies. However, recent studies of the expression of bcl-2 protein in human melanoma and melanocytic nevus have been controversial. OBJECTIVE: The purpose of this study was to examine whether there are any differences in the expression of bcl-2 protein between melanocytic nevus and rnalignant melanoma. METHODS: Immunohistochemical analysis of bcl-2 protein expression was performed on the formalin-fixed, paraffin-embedded tissue sections of 22 melanocytic nevus and 29 malignant melanomas (20 primary and 9 metastatic) using anti bcl-2 monoclonal antibody with an avidin-biotin peroxidase complex procedure. RESULTS: The results were as follows. 1. The positive rate for bcl-2 protein was observed in 95.4% (21/22) of melanocytic nevus and 95.0% (19/20) of primary malignant melanomas. Therefore, there was no significant difference between the two groups in the positive rate for bcl-2 prtoein. 2. The percentage of stained cells and the staining intensity of bcl-2 protein were significantly increased in melanocytic nevus compared to malignant melanoma (p<0.05). 3. The positive rate for bcl-2 expression of metastatic malignant melanoma [44.4% (4/9)] was significantly decreased compared to that of primary malignant melanoma [95.0%(19/20) ] (p<0. 05). But, there was no significant difference betweeen tumor thickness and histological type of malignant, melanoma in the expression of bcl-2 protein. 4. In melanocytic nevus, immunoreactivity of bcl-2 protein gradually diminished or even disappeared towards the deep dermis. CONCLUSION: the bcl-2 expression was decreased in malignant melanoma compared to melanocytic nevus. It. suggests that the loss of bcl-2 expression may play a significant role in the progression and metastasis of malignant melanoma.
Apoptosis ; Cell Death ; Dermis ; Humans ; Melanoma* ; Neoplasm Metastasis ; Nevus, Pigmented* ; Oncogenes ; Peroxidase

No abstract available.
Dipyridamole* ; Heart Ventricles*

No abstract available.
Biopsy, Fine-Needle* ; Small Cell Lung Carcinoma*

We report three cases of rat mite dermatitis caused by Ornithonysus bacoti(Hirst, 1913), commonly referred to it as the tropicalrat mite. The first case, a 26-year old female had multiple pinhead sized vesicles with peripheral erythematous macule on the upper arms. The second case, a 34-year-old femal had multiple variable sized vesicles with erythematous base on the extremeties. The third case, a 43-year old male had multiple erythematous macules and papules with central punctum on the trunl: and extremities. Histopathologic sections from lesions of the first and second patient showed moderate perivascular lymphahistiocytic infiltration intermingled with some eosinophils. Causative mites, Ornithonyssus bacoti, female were collected around the skin lesion in rase 1, from the house dust in case 2 and furniture in case 3.
Adult ; Animals ; Arm ; Dermatitis* ; Dust ; Eosinophils ; Extremities ; Female ; Humans ; Interior Design and Furnishings ; Male ; Mites* ; Rats* ; Skin

The pseudolymphoma syndrome that may mimic malignant lymphoma clinically and histopathologically has been described as a hypersensitivity reaction to anticonvulsant drugs. It consists of the triad of a fever, generalized rash and lyrnphadenopathy. In some cases, varying degrees of malaise, hepatosplenornegaly, abnormal liver function tests, arthralgias, eosinophilia and blood dyscriasias may also be present. We report a case of pseudolymphoma syndrome due to carbamazepine in a 47-year-old man. He had a diffuse edematous and erythematous patches, papules and vesicles associated with high fever, hepatosplenomegaly and lymphadenopathy. The histopathologic finding slowed a dense atypical mononuclear cell infiltrate of the upper dermis associated with Pautriers microabscess like structures and severe dermal edema. Laboratory findings revealed leukocytosis and an abnormal liver function test. Three weeks after the withdrawal of carbamazepine and treatment with oral prednisolone, his skin lesion and general condition markedly improved.
Anticonvulsants ; Arthralgia ; Carbamazepine* ; Dermis ; Edema ; Eosinophilia ; Exanthema ; Fever ; Humans ; Hypersensitivity ; Leukocytosis ; Liver Function Tests ; Lymphatic Diseases ; Lymphoma ; Middle Aged ; Prednisolone ; Pseudolymphoma* ; Skin

No abstract available.
Neck* ; Nevus* ; Sebaceous Glands*