A histopathologic study including iramunohistochemical stains was made in 30 patients who were presented with gastrointestinal lymphoma. The occurrence was 13 in the stomach, 8 in the ileocecum, 7 in the small intestine and 2 in the colon. The disease more frequently affected males than females and the average ages were 53 years in the patients of gastric lymphoma and 44 years in the patients of intestinal lymphoma. Gastric lymphomas were usually presented with a single lesion, and the antrum and/or body were the most common sites. But intestinal lymphomas were presented with a single or multiple lesion, and the ileocecum was the most common site. The most common gross type of gastrointestinal lymphomas was the ulceroinfiltrating type and most are of the diffuse large noncleaved cell type of B-cell lymphoma, histologically. There were 2 cases of T-cell lymphoma presented in the intestine as the superficially ulcerative gross pattern and diffuse immunoblastic cell type. The distinct MALToma was seen in only one case of stomach but the feature was partially remained in each two cases of stomach and intestine. Their coexistent findings may suggest that diffuse large of immunoblastic component arises through blastic transformation of the low-grade M ALToma component.
Female ; Male ; Humans

In this study the authors observed the status of water contamination by crayfish, Cambaroides similis, either alive or dead infected with Paragonimus westermani. The crayfish used as materials were infected heavily with metacercariae of Paragonimus westermani. The live crayfish were kept in water for a long time, and then the sediments of the water were examined to find out whether or not the liberation of the metacercariae from the body of the crayfish had caused contamination of the water with metacercariae. Killed crayfish were also preserved in water for some time. Physical stimuli in terms of mederate degree of shaking were added to the preserved water once a day and half amount of the water was replaced with tapped water of same temperature everyday. Status of the decay of the crayfish, liberation of the metacercariae from the body of the crayfish or contamination of the preserved water by the metacercariae, and numbers of metacercariae harboured in the body of the crayfish were examined everyday. The fate of the metacercariae liberated from the crayfish into water was also observed. Status of the decay of the crayfish, liberation of the metacercariae from the body of the crayfish or contamination of the preserved water by the metacercariae, and numbers of metacercariae harboured in the body of the crayfish were examined everyday. The fate of the metacercariae liberated from the crayfish into water was also observed. The results of this study can be outlined as follows: No metacercaria was detected in the water which contained live crayfish infected with Paragonimus westermani. The preserved water with dead or killed crayfish was found to be contaminated by the metacercariae of Paragonimus westemani, which had been caused by the decay and dispersion of the flesh of the crayfish The liberated metacercariae survived for 10 days in the water at 21-27 C. The liberated metacercariae were found to be sinking into water of s.g. 1.000 with average velocity of 35.8 cm per minute.
parasitology-helminth-trematoda ; Paragonimus westermani ; epidemiology ; crayfish ; Cambaroides similis

CD44 is a hyaluronic acid receptor that exists as a standard 90-kd form (CD44H) as well as several CD44 variants isoforms are produced through alternative splicing. Alternatively spliced variants of the CD44 molecule have been found to be associated with invasive and metastatic potential of cancer cells and poor prognosis in several types of carcinoma. The purpose of the present study is to define the expression of CD44H and CD44v6 in ovarian tumors and to investigate whether the expression of these molecules is associated with adverse prognosis. We evaluated the expression of CD44 isoforms in 58 ovarian tumors by means of immunohistochemistry, and correlated between CD44 expression and the histologic types, tumor grade, peritoneal implants, pseudomyxoma peritonei and FIGO stage. While the CD44H was commonly expressed in ovarian tumors, the CD44v6 was expressed in a minor proportion of serous tumors in comparison with frequent expression of v6 isoform in mucinous tumors. The CD44H expression was significantly higher in stage I/II than in stage III. However, there was no correlation between the expression of CD44 and the presence of peritoneal implants or pseudomyxoma peritonei. These results suggest that CD44H could play an important role in the adhesive function in the lower stage of the ovarian tumor and reduced expression in the higher stage might be related to the metastasis and widespread invasion of ovarian carcinoma cells.
Adhesives ; Alternative Splicing ; Female ; Hyaluronic Acid ; Immunohistochemistry ; Mucins ; Neoplasm Metastasis ; Ovary ; Prognosis ; Protein Isoforms ; Pseudomyxoma Peritonei

Drash syndrome, which was first reported by Denys et al. in 1967 is a complex disorder which associates a nephropathy, Wilms' tumor, and male pseudohermaphroditism. The common denominator is a nephropathy. The nephropathy may be associated with either genital abnormalities or Wilms' tumor, and these associations are called incomplete form of Drash syndrome. This syndrome appears early in life and the first sign usually is genital ambiguity. The nephropathy presents with proteinuria, hematuria and hypertension, and eventually progresses to end stage renal failure. Renal biopsy may reveal a variety of glomerular and interstitial changes. Wilms' tumor may appear as s mass on ultrasound or it may not be recognized until nephrectomy or even autopsy. We report on a boy with nephropathy and genital abnormalities. A nephrotic syndrome with hypertension was present when first seen at 15 days of age. The karyotype was 46, XY and external genitalia was ambiguous. The nephrotic syndrome and signs of renal insufficiency persisted and he died at the age of 40 days. Histopathologic findings of kidney at autopsy revealed those of diffuse mesangial sclerosis. The case was presented with brief review of literatures.
46, XY Disorders of Sex Development ; Autopsy ; Biopsy ; Denys-Drash Syndrome* ; Disorders of Sex Development ; Genitalia ; Hematuria ; Humans ; Hypertension ; Karyotype ; Kidney ; Male ; Nephrectomy ; Nephrotic Syndrome ; Proteinuria ; Renal Insufficiency ; Sclerosis ; Ultrasonography ; Wilms Tumor

PURPOSE: The incidence of clinical nephritis is much higher especially in younger ages and in about one half of the cases, it also shows nephrotic syndrome. Thus, we examine the clinical and pathologic consideration of children with lupus nephritis and their treatment modality to improve the prognosis. MATERIAL AND METHOD: Among 67 cases of children under eighteen who were diagnosed SLE, 50 patients with hematuria and proteinuria from Jan. 1980 to Dec. 1996 were selected for the review. RESULTS: The ratio of the male to female patient was 1:3.5 and the average age at the diagnosis was 11.85+/-3.2 years old. Most common clinical manifestations at the time of the diagnosis were fever and skin rashes and the common laboratory results were proteinuria, hematuria, Out of 50 cases, 33 cases had renal biopsy. The results were 17 cases of Class IV, 7 cases of Class lll, 5 cases of Class lll, 3 cases of Class V and 1 case of Class l. Different treatment modalities were carried out; Corticosteroid only 21 cases, Corticosteroid+Azathioprine 25 cases, Corticosteroid+Cyclophosphamide 3 cases, and Corticosteroid+Cyclosporine A 1 case. However, there were no significant difference in the recurrence and complete remission rate of lupus nephritis in between each treatment groups. Average follow-up period was 37+/-23 months. Of all the follow-ups, 7 patients were dead. CONCLUSION: Early diagnosis should be carried out with renal biopsy, and should be considered for vigorous therapy, which currently includes high doses of corticosteroids and immunosuppressive drugs. Among these immunosuppressive agents, azathioprine has a lower incidence of long-term complications and low costs might be recommended. In addition, regular check-up for anti-DNA antibody, serum complement concentration and appropriate moniroting and management for the adverse effects of the treatment should enable to reach the continuous remission.
Adrenal Cortex Hormones ; Azathioprine* ; Biopsy ; Child* ; Complement System Proteins ; Diagnosis ; Early Diagnosis ; Exanthema ; Female ; Fever ; Follow-Up Studies ; Hematuria ; Humans ; Immunosuppressive Agents ; Incidence ; Lupus Nephritis* ; Male ; Nephritis ; Nephrotic Syndrome ; Prognosis ; Proteinuria ; Recurrence

A possible therapeutic effect of acetyl-L carnitine (ALCAR) on peripheral nerve injuries and the expression of Jun, the protein products of immediate-early genes(IEGs), in the spinal cord were investigated after sciatic nerve injury in Sprague-Dawley rats. Experimental animals were divided into 3 groups: intact sciatic nerve as a control group, surgical repair alone, and surgical repair with ALCAR treatment. Toe-spreading response, pinprick response, and compound action potential were measured to evaluate the recovery of sciatic nerve injury. Recovery of behavioral function and electrophysiological function both improved in the surgical repair with ALCAR treatment group. Weak basal expression of Jun was shown in the ventral horn the of spinal cord in the control group. In the surgical repair alone group or the surgical repair with ALCAR treatment group, Jun expression persisted until 28 days after injury in the ventral horn of the spinal cord. Moreover, the surgical repair with ALCAR treatment group showed more increased expression of Jun than the surgical repair alone group. These results suggest that ALCAR facilitates the functional recovery after peripheral nerve injury.
Acetylcarnitine ; Action Potentials ; Animals ; Carnitine* ; Horns ; Peripheral Nerve Injuries ; Rats* ; Rats, Sprague-Dawley ; Sciatic Nerve* ; Spinal Cord

Diabetic nephropathy is characterized by one or a combination of the following lesions: (1) glomerular involvement with three distinctive patterns: diffuse glomerulosclerosis, nodular glomerulosclerosis, and exudative lesions; (2) arteriolo sclerosis; (3) urinary tract bacterial infection with pyelonephritis and sometimes emphysematous pyelonephritis. Emphysematous pyelonephritis is an uncommon life-threatening and acute suppurative infection of the kidney, and usually occurs in diabetic female patients. It is characterized by the production of intraparenchymal gas. Glucose fermentation has been considered the main cause of the gas formation. We presented two illustrative nephrectomy cases of emphysematous pyelonephritis in addition to the typical pathologic features of diabetic nephropathy.
Bacterial Infections ; Diabetic Nephropathies* ; Female ; Fermentation ; Glucose ; Humans ; Kidney ; Nephrectomy ; Pyelonephritis* ; Sclerosis ; Urinary Tract

Pseudoxanthoma elasticum (PXE) is an uncommon heritable disorder of elastin characterized by cutaneous, ocular and vascular abnormalities. Typical skin lesion shows yellowish papules and redundant skin folds on the neck, axilla and groin due to degeneration and calcification of elastic fibers in deep dermis. As in all heritable disorders of connective tissue, no curative therapy is presently know. Redundant and unsightly skin folds about the neck can be improved by surgery, but irregular papular lesion on skin does not improved by surgery. A-44-year-old female who had a skin lesion and angioid streak was treated as follows: Skin folds on the neck were excised successfully without any significant problem such as intraoperative bleeding, wound dehiscence or hypertrophic scar formation. To evaluate whether we could smooth the irregular skin surface due to multiple papules, laserbrasion with a SLT contack Nd:YAG laser system was performed experimentally on a limited area which was located on the right supracla-vicular area about 2 x 3cm in size. An acceptable aesthetic appearance was achieved with surgical excision 12 months after the operation. Biopsy of the laserbrasion site revealed disappearance of the calcium deposit. This study emphasizes the possibility of using laserbrasion in solving troblesome skin lesion of the PXE.
Angioid Streaks ; Axilla ; Biopsy ; Calcium ; Cicatrix, Hypertrophic ; Connective Tissue ; Dermis ; Elastic Tissue ; Elastin ; Female ; Groin ; Hemorrhage ; Humans ; Neck* ; Pseudoxanthoma Elasticum ; Skin ; Wounds and Injuries

BACKGROUND: Bacteriokiller system(BKS) produces disinfectant which is generated by the mixture of active oxygen and hypochlorous acid with tap water. Previous studies showed that BKS disinfectant is highly bacteridal against clinical isolates in in vitro testings and more effective than general soap and water for the disinfecttion of contaminated handa. This study was performed to evaluate ling-trem effects of BKS as a handwasing agent in clinical settings. METHODS: Five BKS were installed for the 9-month period from June 1995 to February 1996 in 16-bed Neurosurgery Intensive Care Unit. Handwashing was frequency was observed after 1, 6, and 8 month of BKS use. Six-month incidences of nosocomial infecrion before and after BKS installation were compared to evaluate the possible effect of handwashings on nosocomial infection rates. A self-administered questionaire was used to collect data on handwashing frequency and their opinions of the BKS disinfectant at 2 and 8 months after the installation. RESULTS: Handwashing frequency of healthcare workers(HCWs) before and after patient contacts was increased from 34.1%(137/402) to 50.3%(193/384) (p<0.00001). At the same time, the 6-month nosocomial infection rate was down to 10.5%(43/411) from the pre-BKS rate of 13.0%( 51/431) and the patient-day rate was also decreased from 18.3(56/3068) to 15.1(43/2,844). Most (80.5%) of HCWs thought that BKS promote handwashing and "convenience" was the main reason for more frequent handwashing. Ninety three percent of HCWs would recommend the replacement of tne existing sinks and handwashing disinfectants with BKS. NO adverse skin reaction were reported after 8 months. Conclusions: BKS appears to promote handwashing because it is easy to use with no skin irritation and may contribute toward the prevention of nosocomial infections.
Cross Infection ; Delivery of Health Care ; Disinfectants ; Hand Disinfection ; Humans ; Hypochlorous Acid ; Incidence ; Intensive Care Units ; Neurosurgery ; Reactive Oxygen Species ; Skin ; Soaps

PURPOSE: The purpose of this study was to evaluate the validity of reference points for edentulous patient by examining the correlation of teeth and face, and intraoral anatomic landmarks. MATERIALS AND METHODS: We examined a facial outline, length, bizygomatic width, nasion - gnathion length, glabella - nasion distance in 270 men and 280 women satisfied with inclusion criteria from Seoul National School of Dentistry. The shape of maxillary central incisor, mesiodistal crown width and length of maxillary 6 incisors, distance from incisive papilla to labial surface of maxillary central incisor, and perpendicular distance from incisive papilla to intercanine line were measured in the stone model. We analyzed the ratio and relevant relation statistically. RESULTS: The probability on having the same shape of face and the relative same shape maxillary incisor was 55.56% and 46.43% for men and women. The facial length proved to be a more valuable measurement in women in the tooth selection. The ratio of bizygomatic width to mesiodistal width of maxillary central incisor, and the ratio of bizygomatic width to width of maxillary 6 incisors were 16.8 : 1 and 3.0 : 1 and were positively correlated with each other. The distance of the canines from the maxillary incisal papilla was 1.33+/-1.28 mm. The distance between the center of the incisal papilla and the labial surface of their maxillary central incisor was 9.23+/-1.20 mm. CONCLUSION: It was showed that anatomical reference points in tooth selection and arrangement for edentulous patient are useful and have validity in our limited study.
Anatomic Landmarks ; Crowns ; Dentistry ; Female ; Humans ; Incisor ; Male ; Palate ; Seoul ; Tooth