Papillary tumor of the temporal bone or middle ear has been recognized as an aggressive neoplasm because of its invasive growth pattern. The site of origin is controversial so that most cases have been reported under various diagnostic terms. Recently, Heffner(1989) suggested that the endolymphatic sac is a possible site of origin, because the tumor resembles the endolymphatic sac in several aspects. We report two such cases. One patient was a 34-year-old female presenting with tinnitus and hearing difficulty for 1 year. Temporal bone CT revealed extensive bone destruction by the tumor which was located in the posterolateral aspect of temporal bone. The other patient was a 56-year-old female who complained of tinnitus, dizziness and otalgia for 2 years. Cranial MR imaging showed an irregularly marginated mass in the left jugular fossa with extension to the petrous bone. Histologically, both cases showed a papillary pattern and locally destructive growth that are typical of papillary tumor of the endolymphatic sac. The papillae were lined by a single layer of bland-looking cuboidal to low columnar cells. Immunohistochemically the lining cells expressed cytokeratin, epithelial membrane antigen, neuron specific antigen and in one case, S-100 protein, supporting the thesis that these neoplasms might be of endolymphatic sac origin.
Female ; Humans

BACKGROUND AND OBJECTIVES: Combination of ticlopidine and aspirin has been accepted as a standard antiplatelet regimen after coronary stenting because it reduced the rate of cardiac events and hemorrhagic-vascular compli-cations compared with intensive anticoagulation. Ticlopidine use, however, may accompany serious side effects such as neutropenia or liver dysfunction. Cilostazol, a c-AMP phosphodiesterase inhibitor, is a novel antiplatelet agent which is known to have less side effects. MATERIALS AND METHODS: We compared the efficacy and safety of ci lostazol plus aspirin (CA) with ticlopidine plus asprin (TA) after elective coronary stenting. Patients were randomly assigned to receive either CA or TA two days before stenting. The primary end point was a composite of angiographic stent thrombosis, death, myocardial infarction (Q or Non-Q), repeat intervention or bypass su rgery at 30 days. The secondary end points were hemorrhagic-vascular complications, or drug side effects such as neutropenia, thrombocytopenia, or any side effects requiring cessation of drugs at 30 days. RESULTS: After randomization of 300 patients equally to each group, 4 patients were excluded from the analysis: 1 failure of stenting, 3 follow-up loss. The primary end point was reached in 2 patients (1.4% ) in CA group and 3 patients (2.0% ) in TA group (p=1.0). The rate of hemorrhagic-vascular complications was not different between the gr oups (1.4% vs 2.0%, p=1.0). The incidence of significant drug-related side effects was not statistically different between CA group and TA group (0.7% vs 2.7%, p=0.37). However, serious side effect such as neutropenia was seen only in TA group. CONCLUSION: Compared with TA, CA has comparable effect for the prevention of stent thrombosis and major cardiac events with similar rate of hemorrhagic-complications and drug-related side effects after elective coronary-artery stenting. Thus CA regimen can be a safe alternative to TA in elective implantation of coronary artery stent.
Aspirin ; Coronary Vessels ; Follow-Up Studies ; Humans ; Incidence ; Liver Diseases ; Myocardial Infarction ; Neutropenia ; Random Allocation ; Stents ; Thrombocytopenia ; Thrombosis ; Ticlopidine*

Kawasaki disease or mucocutaneous lymph node syndrome is an acute inflammatory illness of childhood characterized by systemic panvasculitis. It presents with high fever, dramatic changes of the skin and mucous membranes, and lymphadenopathy. Adult-onset Kawasaki disease is rare and reports on coronary involvement in adult are even rarer. Herein, we report a case of adult-onset Kawasaki disease complicated by splenic infarction and development of coronary aneurysm even despite of treatment with intravenous gamma globulin. A 20-year-old man presented with fever, erytheatous rash, induration and desquamation of hands and feet, pulmonary edema and shock due to cardiomyopathy, splenic infarction, bilateral conjunctivitis, jaundice, and cervical lymphadenopathy. After Kawasaki disease was suspected, intravenous gamma globulin (2 g/kg once) and aspirin (6 g/day) were administered. On the 30th hospital day, transesophageal echocardiography showed one coronary aneurysm and coronary angiography showed three aneurysms. Eight months after the first admission, follow-up coronary angiography showed normalization of the previous coronary abnormalities.
Adult ; Aneurysm ; Aspirin ; Cardiomyopathies ; Conjunctivitis ; Coronary Aneurysm* ; Coronary Angiography ; Echocardiography, Transesophageal ; Exanthema ; Fever ; Follow-Up Studies ; Foot ; gamma-Globulins ; Hand ; Humans ; Jaundice ; Lymphatic Diseases ; Mucocutaneous Lymph Node Syndrome ; Mucous Membrane ; Pulmonary Edema ; Shock ; Skin ; Splenic Infarction* ; Young Adult

Tyrosine kinases have been implicated in vascular smooth muscle cell proliferation and contraction. The involvement of tyrosine kinases in 5-hydroxytryptamine (5-HT)-induced contractile response of the isolated aorta was examined in two-kidney, one clip (2K1C) hypertensive rats, 2141C hypertension was made by constricting the left renal artery and age-matched control rat received sham treatment. Thoracic aortic rings denuded of endotheliurn were mounted in tissue bath, for measurement of isometric contractile force. The putative tyrosine kinase inhibitor, genistein, shifted concentration-response curves to 5-HT toward the right in control rats The isometric force generation induced by 5-HT was also inhibited by genistein in aortic rings from 2K1C: hypertensivc rats, however genistein did not affect on the high concentration of 5-HT in hypertensive rat ;. Genistein-induced relaxations were more attenuated in aortae from hypertensive rats than those from control Genistein had no effect on contrartcion elicited by the direct protein kinase C activator, phorbol 12, 13 dibutyrate (PDBu) either in 2KlC hypertensive or in control Group. These findings indicate that genistein-sensitive tyrosine kinases paeticipate in 5-HT-induced contraction of rat aortic smooth muscle, of which role is apparent in 2K1C: hypertension.
Animals ; Aorta ; Baths ; Cell Proliferation ; Genistein ; Hypertension ; Muscle, Smooth ; Muscle, Smooth, Vascular ; Phosphotransferases* ; Placebos ; Protein Kinase C ; Protein-Tyrosine Kinases ; Rats* ; Relaxation ; Renal Artery ; Serotonin ; Tyrosine*

BACKGROUND: Due to rapidly growing elderly population, there are increasing numbers of older persons with multiple chronic disorders and geriatric problems arising from polypharmacy. In this study we tried to find out the state of polypharmacy and inappropriate drug prescription and their related factors in community-dwelling elderly by review of drugs taken by older persons visiting a day health center. METHODS: From April 2007 to July 2007, 80 subjects of 65 year-old or over with chronic illness who visited a elderly-wellness and health care center were randomly sampled. All of them were surveyed by structured questionnaires, medical records review, pill counts about all medications they are taking and experience of adverse drug reactions. And all the prescribed medications were reviewed or their drug prescription's appropriateness for each elderly according to Beers criteria. Data results were evaluated by frequency and correlation analyses. RESULTS: The average counts of drugs taken by elderly with chronic disorders were 7.23, minimum 1 to maximum 27 drugs a day. Patients experienced more adverse effects significantly when more prescribed medications were taken (P=0.005), and patients with lack of information about their drugs had taken increased number of medications (P<0.001). Referred to Beers criteria, inappropriate cases of prescription were observed in 26 persons. Those drugs were NSAIDs including aspirin in 17 subjects (21%), amitrityline in 3 (4%), short-acting benzodiazepines in 3 (4%), long acting benzodiazepines in 2 (3%), and anticholinergic antihistamine in 1 (1%). CONCLUSION: Polypharmacy is very common in community-dwelling elderly with chronic disorders. More medications were related to more adverse drug reactions and lack of information about their drugs related to increased number of drug taking. High proportion of inappropriate drug prescriptions was observed in the elderly, which may have resulted from poor education concerning geriatric care of the medical personnels.
Aged ; Anti-Inflammatory Agents, Non-Steroidal ; Aspirin ; Beer ; Benzodiazepines ; Chronic Disease ; Delivery of Health Care ; Drug Prescriptions ; Drug Toxicity ; Humans ; Medical Records ; Polypharmacy ; Prescriptions ; Surveys and Questionnaires

BACKGROUND: The role of platelet in the pathogenesis of acute coronary syndrome and cerebral thrombosis is well known and the platelet inhibitors are used widely for primary and sccondary prevention of cardiovascular disease. Aspirin is the least expensive and most widely used antiplatelet agent and its effect is associated with its ability to inhibit plateletthromboxane A2 synthesis. The effectiveness of aspirin is dependent on its ability to block the formation of thromboxane A2. Ticlopidine is another popular antiplatelet agent used today in the era of stent implantation for treating coronary artery obstructive disease(CAOD) with aspirin. The mechanism of action of ticlopidine is clearly different from that of aspirin. It is concluded recently that ticlopidine is an inhibitor of ADP binding to platelets. The inhibition of ADP binding to platelets by ticlopidine is very nicely correlated with its does and the inhibition of platelet aggregation. Therefore, in this study, antiplatelet effect of low dose enteric-coated aspirin in place of aspirin and combined therapy with low does enteric-coated aspirin plus ticlopidine were evaluated in the normal subjects. METHOD: IN twenty normal subjects, platelet aggregation tests with adenosine diphosphate(ADP) and collagen were performed baseline, after I week adminisrtation of enteric-coated aspirin, and in randomly selected ten among twenty normal subjects, I week administration of enteric-coated aspirin and ticlopidine. The maximal aggregation rate was calculated by measuring the maximal change of the light transmittance after addition of aggregating agents. RESULT: Low does enteric-coated aspirin inhibited platelet aggregation in response to collagen significantly. Less than 25% of antiaggregation effect was noted in about 50% of subjects with low dose enteric-coated aspirin when platelet aggregation was induced by ADP. Ticlopidine in combination with low does enteric-coated aspirin potentiated the inhibitory effect significantly on platelet aggregation in response to ADP. CONCLUSION: Effect of low dose enteric-coated aspirin alone on platelet aggregation in response to ADP stimulation was weak and showed variablity, comparing to collagen stimulation. The combined treatment of ticlopidine plus aspirin was synergistically inhibited platelet aggregation responding to ADP stimulation. Therefore to achieve the synergistic inhibition of platelet aggregation to ADP and collagen stimulation, combination theraphy might be a effective regimen.
Acute Coronary Syndrome ; Adenosine ; Adenosine Diphosphate ; Aspirin* ; Blood Platelets* ; Cardiovascular Diseases ; Collagen ; Coronary Vessels ; Intracranial Thrombosis ; Platelet Aggregation ; Platelet Aggregation Inhibitors ; Stents ; Thromboxane A2 ; Ticlopidine*

We report a case of pyelocalyceal diverticulum. The patient was a 25-year-old woman and admitted to the Dept. of Urology B.N.U.H. because of mild left flank pain. The tentative diagnosis was made by IVP and confirmed by operation and histological examination. The roentgenogram of IVP revealed round cystic mass at lateral site of middle calyx, right.
Adult ; Diagnosis ; Diverticulum* ; Female ; Flank Pain ; Humans ; Urology

BACKGROUND: The effect of spinal nitric oxide (NO) on mechanical allodynia brought about by Freund's complete adjuvant (FCA)-induced inflammation is not known. From our previous experiment nitric oxide synthase (NOS) inhibitor nitroG-L-arginine methyl ester (L-NAME) given intraplantarly during the induction period decreased a mechanical hyperalgesia occurring because of FCA-induced inflammation. Therefore, we investigated the spinal effect of NO on mechanical allodynia after the development of allodynia produced by FCA-induced inflammation in rats. METHODS: Male Sprague Dawley rats were prepared with lumbar intrathecal catheter implantation. Inflammation was induced in the rats by injecting 0.1 ml of FCA under halothane anesthesia. Behavioral tests were done 1, 3, 6, 24, and 48 hours after injection of FCA. In the other group, intrathecal L-NAME (10 microgram) was given prior to FCA injection to examine the effect of pretreatment. On postinjection day 2, either L-NAME (10 microgram) or methylene blue (10 and 30 microgram) was administered intrathecally after the baseline measurement. The withdrawal response on mechanical allodynia was assessed by applying von Frey filaments to the right lesioned hindpaw and contralateral paw (as control) at 15, 30, 45, 60, 90, and 120 minutes. Sodium nitroprusside was administered intrathecally to determine the reversal effect of increased threshold in the L-NAME group. RESULTS: Injection of FCA produced a significant mechanical allodynia over time. Pretreatment with L-NAME did not prevent such a mechanical allodynia. Intrathecal L-NAME, but not methylene blue, reduced the mechanical allodynia, which was reversed by sodium nitroprusside. CONCLUSIONS: Spinal NO is likely invloved in the mechanism of the development and maintenance of mechanical allodynia in a state of FCA-induced inflammation.
Anesthesia ; Animals ; Catheters ; Halothane ; Humans ; Hyperalgesia* ; Inflammation* ; Male ; Methylene Blue ; NG-Nitroarginine Methyl Ester ; Nitric Oxide ; Nitric Oxide Synthase ; Nitroprusside ; Rats ; Rats, Sprague-Dawley

It has been reported that injection of Freund's complete adjuvant (FCA) into the hindpaw of a rat induces inflammatory responses with accompanying pain behaviors. Signs of pain behaviors observed in FCA-injected animals were reported to be similar to symptoms seen in patients with inflammatory pain. The nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d) is a selective histochemical marker for the nitric oxide synthesizing enzyme, nitric oxide synthase (NOS). N (G)-nitro-L-arginine methyl ester (L-NAME) is a NOS inhibitor. In the present study, we examined if inflammaory pain causes increases in NADPH-diaphorase reactivities in neurons of the dorsal root ganglia (DRG). The results were as follows; 1. FCA-induced inflammation on a limb increased staining density (SD) of NADPH-d positive neurons in the ipsilateral side DRG. 2. Pretreatment of L-NAME did not changed SD of NADPH-d positive neurons on the inflammation of contralateral side DRG 3. Posttreatment of L-NAME decreased the inflammation induced SD of NADPH-d positive neurons. 4. n-NOS immunoreactivity did not match NADPH-d histochemical study, implying the constant level of enzyme itself. Inflammation pain on a hindlimb increased staining density of NADPH-diaphorase positive neuron in the DRG, which was decreased by L-NAME. L-NAME also decreased pain perception. This suggests a role of NO in the pain perception and/or modulation at the level of DRG.
Animals ; Diagnosis-Related Groups* ; Extremities ; Ganglia, Spinal ; Hindlimb ; Humans ; Inflammation ; NAD ; NADP ; Neurons ; NG-Nitroarginine Methyl Ester ; Nitric Oxide Synthase ; Nitric Oxide* ; Pain Perception ; Rats*

Carcinoid tumors are slow growing submucosal tumors with metastatic potential that arise from enterochromaffin cell. The annual incidence of carcinoid tumor is 2 to 3 per 100,000. Carcinoid tumor of duodenum is very rare with an incidence of about 8% among gastrointestinal carcinid tumor. As a endoscopic examination and immnohistochemical stain are developed, an rate of detection is increasing. Among the possible factor of metastatic prediction, tumor size >10 mm, central depression or ulcer, invasion below submucosa, lymphatic or venous invasion are associated with higher metastatic potential. Specially, in case of tumor size <10 mm, in duodenum, there is no report of metastasis to liver in Korea. But, recently, we experienced a rare care of duodenal carcinoid measured by less than 10 mm with liver metastsis. Thus, we report here this case with a review of literature.
Aged, 80 and over ; Carcinoid Tumor/*diagnosis/pathology ; Diagnosis, Differential ; Duodenal Neoplasms/*diagnosis/pathology ; Female ; Humans ; Liver Neoplasms/diagnosis/pathology/*secondary ; Neoplasm Metastasis ; Tomography, X-Ray Computed