No abstract available.
Crohn Disease* ; Hodgkin Disease* ; Humans

Meningioangiomatosis is a rare benign hamartomatous lesion. We describe a case of meningioangiomatosis in an 18-year-old boy with a 15 year history of seizures. Computed tomography reveals an irregular calcification density along the right temporal gyrus. Microscopically, irregularly branched blood vessels, surrounded by a concentric arrangement of proliferating spindle cells, are extending into the gray matter from the meningeal surface. Ultrastructural and immunohistochemical examination failed to demonstrate features of meningothelial cell origin in this case. This is the first case of meningioangiomatosis published in Korea along with immunohistochemical and electron microscopic studies. The pathogenesis and previous reports of this lesion will be discussed.
Adolescent ; Brain Neoplasms/*pathology/radiography/ultrastructure ; Hemangioma/*pathology/radiography/ultrastructure ; Humans ; Immunohistochemistry ; Male ; Microscopy, Electron

Kimura's disease is an important category of reactive lymphadenopathy especially among Asians. It is a chronic inflammatory disorder of unknown etiology and is characterized by angiolymphoid proliferation and eosinophilia. The patient was a 17-year-old man with a 3-year-history of submandibular lymphadenopathy Who was referred to Kyung Hee University Hospital for evaluation of enlarging mass. He had a history of nephrotic syndrome for 7-8 years since 1984. Laboratory findings were not specific except for peripheral blood eosinophilia. The submandibular lymph node showed florid germinal enters, increased postcapillary venules in the paracortex, eosinophilic infiltration, and sclerosis. In this paper, a case of lymphadenopathy of Kimura's disease associated with nephrotic syndrome is reported.
Male ; Humans

PURPOSE: To improve low sensitivity of urinary cytology in diagnosis and surveillance of bladder cancer, we performed a study using the Lewis X immunocytology with the murine BG-7 monoclonal anti-Lewis X immunoglobulin M antibody while comparing it with conventional urinary cytology. MATERIALS AND METHODS: Barbotage bladder washings were performed in 36 patients who were diagnosed as having bladder tumor after cystoscopy. The specimens were divided into conventional urinary cytology and immunocytochemical examinations. The cytologic examination was done according to Papanicolau. Indirect immunoperoxidase staining of urine samples was done using the murine BG-7 monoclonal antibody against the Lewis X antigen. Biopsies were obtained in all cases via transurethral resection. The results were analysed according to the tumor stage and grade. RESULTS: Of the 36 patients, 33 patients were diagnosed with transitional cell carcinoma, 1 with inverted papilloma, and 2 with chronic inflammation. Immunocytology showed positive results in 25 of the 33 patients, corresponding to a sensitivity of 75.8% while conventional cytology showed a sensitivity of 45.5%. This discrepancy was vivid in the cases of low grade transitional cell carcinoma. The sensitivities of conventional cytology were 23% in grade I and 50% in grade II, while those of immunocytology were 50% in grade I and 100% in grade II. CONCLUSIONS: Our data show that Lewis X immunocytology using the murine BG-7 monoclonal anti-Lewis X antibody can improve the sensitivity of noninvasive detection of transitional cell carcinoma of the bladder, especially in low grade tumor.
Antigens, CD15* ; Biopsy ; Carcinoma, Transitional Cell ; Cystoscopy ; Diagnosis ; Humans ; Immunoglobulin M ; Inflammation ; Papilloma, Inverted ; Urinary Bladder Neoplasms* ; Urinary Bladder*

No abstract available.
Eosinophils* ; Hypereosinophilic Syndrome*

PURPOSE: Unknown primary carcinoma takes up approximately 0.5-10% of the oncology patients evaluated, and the patients have poor survival of between 3 to 11 months. Despite the short survival, certain clinically defined subsets of patients were reported to have a better prognosis. Thus, the objective of this study was to identify prognostic factors. MATERIALS AND METHODS: The present study was con ducted with 103 patients who were referred from January 1988 to July 1999. The primary end point was survival. The survival curves were estimated using the Kaplan-Meier method and compared using the Log-rank test and Cox's proportional hazards regression analysis. RESULTS: Most patients had histologic evidence of ade nocarcinoma or squamous cell carcinoma. Univariate and multivariate analyses identified good prognostic factors including performance status (grade 0-2), female and adenocarcinoma with more than moderate level of differentiation. The responders of chemotherapy in squamous cell carcinoma and lung, breast, ovary -estimated- cancer showed good survival rates. CONCLUSION: Unknown primary carcinoma tended to show a poor prognosis. However, when treatment modality of unknown primary carcinoma is to be determined through the prognostic factors, the patients quality of life can be improved through reducing the treatment side effects and economic burden on the patients.
Adenocarcinoma ; Breast ; Carcinoma, Squamous Cell ; Drug Therapy ; Female ; Humans ; Lung ; Multivariate Analysis ; Ovary ; Prognosis ; Quality of Life ; Retrospective Studies* ; Survival Rate

Granulocytic sarcoma, also called chloroma or myeloblastoma, is an extramedullary invasive tumor composed of neoplastic myeloid cells. In this report, we describe a 43-year-old male patient with a collision tumor composed of an adenocarcinoma and a granulocytic sarcoma in the stomach. The coexistence of a granulocytic sarcoma and adenocarcinoma in the stomach has, to the best of our knowledge, not been reported in the literature. The diagnosis of granulocytic sarcoma is very difficult; especially in the absence of concurrent hematologic disease or in the uncommon setting of coexistence with another tumor. Cautious observation is needed when a finding of unusual atypical cells admixed with an adenocarcinoma in the stomach is confronted.
Adenocarcinoma ; Adult ; Hematologic Diseases ; Humans ; Male ; Myeloid Cells ; Sarcoma, Myeloid ; Stomach

We present herein the occurrence of multifocal adenocarcinomas with a minute signet ring cell carcinoma that arose within a gastric inverted hyperplastic polyp (IHP) in a 40-year-old woman. Endoscopic ultrasonography demonstrated a heterogeneous hypoechoic mass in the third layer of the gastric wall. The endoscopic submucosal dissection specimen measuring 3.5x3.2x1.8 cm was a well-circumscribed protruding lesion that had a slit-shaped cavity. Histologically, the lesion consisted mainly of endophytic proliferation of hyperplastic columnar cells resembling normal foveolar epithelium. In addition, six foci of adenocarcinomas and a minute focus of signet ring cell carcinoma were randomly distributed in the superficial and deep regions. The adenocarcinoma was gradually transitioning from dysplasia, while the signet ring cell carcinoma was surrounded by hyperplastic foveolar epithelium. This is the first report of a gastric IHP with multifocal intramucosal adenocarcinomas and a signet ring cell carcinoma, and endoscopic submucosal dissection is used to completely resect it.
Adenocarcinoma ; Adult ; Carcinoma, Signet Ring Cell ; Endosonography ; Epithelium ; Female ; Humans ; Polyps ; Stomach

BACKGROUND: Epithelial tumor cells with a CD44(+)/CD24(-/low) immunoprofile may have the ability to cause breast cancer. We studied these cells and their clinicopathological significance. METHODS: The clinicopathologic findings of 100 invasive ductal carcinoma (IDC) cases and 45 ductal carcinoma in situ (DCIS) cases were reviewed. CD44(+)/CD24(-/low) tumor cells were identified by immunohistochemistry, and their clinicopathological implications in IDC and DCIS were analyzed. RESULTS: IDC with a high prevalence of CD44(+)/CD24(-/low) tumor cells was significantly associated with larger mass, higher grade, estrogen receptor (ER) negativity, and tumor cells with a higher frequency of metastasis. The proportion of CD44(+)/CD24(-/low) tumor cells in IDC, and its DCIS components was not significantly different, whereas the proportion of CD44(+)/CD24(-/low) tumor cells was higher in DCIS than in the DCIS component of IDC (p < 0.001). CONCLUSIONS: IDC with a high prevalence of CD44(+)/CD24(-/low) tumor cells might correlate with aggressive features, such as ER and higher grades. Moreover, the proportion of CD44(+)/CD24(-/low) tumor cells in the DCIS components of IDC and DCIS might harbor different biology, which may lead to differences in cancer progression and early carcinogenesis.
Antigens, CD24 ; Antigens, CD44 ; Biology ; Breast ; Breast Neoplasms ; Carcinoma, Ductal ; Carcinoma, Intraductal, Noninfiltrating ; Estrogens ; Immunohistochemistry ; Neoplasm Metastasis ; Neoplastic Stem Cells ; Prevalence

Linoleic acid [LA; 18: 2 (n-6)] is the most abundant polyunsaturated fatty acid in human skin. The exclusion of LA from diet induces epidermal hyperproliferation, which is reversible by the inclusion of LA in diet, and hence, LA is heralded as an essential fatty acid (EFA). Since safflower oil (SO) has been widely recognized as the major dietary source of LA and Arctii Fructus (Arctium lappa L.) is recently reported to contain high level of LA, we compared the antiproliferative effects of SO and Arctii Fructus in this study. Epidermal hyperproliferation was induced in guinea pigs by hydrogenated coconut oil (HCO) diet for 8 wk. During following 2 wk, EFA deficient guinea pigs were fed diets of safflower oil (group HS), water extract of Arctii Fructus (group AW) or organic extract of Arctii Fructus (group AO). Normal control group was fed SO containing diet (group SO) and EFA deficient group was fed HCO containing diet (group HCO) for 10 wk. Epidermal hyperproliferation was reversed in groups AO (55.9% of group HCO) and HS(74.1% of group HCO). However, the thymidine incorporation into epidermal DNA of group HS was greater than of normal control group SO. Epidermal hyperproliferation was not reversed in group AW. The accumulations of LA into phospholipids and ceramides, and of 13-hydroxyoctadecadienoic acid (13-HODE), the potent antiproliferative metabolite of LA in the epidermis of group AO were greater than of group HS. In contrast, the de novo synthesis of ceramides, the major lipids maintaining epidermal barrier, did not differ between all of groups. Together, our data demonstrate that organic extract of Arctii Fructus is more prominent than safflower oil in reversing epidermal hyperproliferation by inducing the higher accumulations of LA and 13-HODE in the epidermis of guinea pigs.
Animals ; Ceramides ; Cocos ; Diet ; DNA ; Epidermis ; Guinea Pigs* ; Guinea* ; Humans ; Hydrogen ; Linoleic Acid* ; Phospholipids ; Safflower Oil ; Skin ; Thymidine ; Water