1.The Intestinal Type of Florid Cystitis Glandularis Mimics Bladder Tumor: A Case Report.
Young Soo SONG ; Ki Seok JANG ; Si Hyong JANG ; Kyueng Whan MIN ; Woong NA ; Soon Young SONG ; Hong Sang MOON ; Tchun Yong LEE ; Seung Sam PAIK
Korean Journal of Pathology 2007;41(2):116-118
Cystitis glandularis is a benign metaplastic proliferative lesion of the urinary bladder which usually occurs in the setting of chronic irritation and infection or in some cases as a congenital process. Sometimes it presents as a tumor mass-like florid lesion, grossly mimicking malignancy. We report a case of 59-year-old man with multiple mass lesions around the trigone and the neck portion, which suggested the possibility of malignancy in clinical and radiological evaluations. Final diagnosis was confirmed by transurethral resection. The surface urothelial lining was intact. The submucosa showed von Brunn's nests, cystitis glandularis and cystitis cystica in the edematous lamina propria. There were numerous glands lined by tall columnar, mucin producing epithelium without atypia, conforming to the appearance of the intestinal variant of cystitis glandularis. The cystitis glandularis may mimic a neoplasm on gross evaluation. The intestinal variant of cystitis glandularis is particularly likely to be problematic when florid.
Cystitis*
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Diagnosis
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Epithelium
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Humans
;
Middle Aged
;
Mucins
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Mucous Membrane
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Neck
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Urinary Bladder Neoplasms*
;
Urinary Bladder*
2.Solitary Fibrous Tumor A clinicopathologic review of five cases.
Bum Kyung KIM ; Dong Wook KANG ; Kyeong Hee KIM ; Seong Ki MIN ; Jin Man KIM ; Kyu Sang SONG ; Dae Yung KANG ; Si Whan CHOI
Korean Journal of Pathology 1999;33(2):115-120
We experienced five cases of solitary fibrous tumor; two in the pleura, two in the orbital soft tissue, and one in the lung parenchyma. Three patients were male, and the age of the patients ranged from 38 to 71 years (mean age: 53.6). Grossly, the masses were well circumscribed and had varying sizes from 2.5 to 30.0 cm. The cut surfaces were grayish-yellow firm with focal variegated hemorrhage, necrosis, cystic change, and myxoid area. Microscopically, these were characterized by a haphazard proliferation of spindle cells or polygonal cells separated by variable amounts of hyalinized collagen and showed a prominent vascular channels reminiscent of hemangiopericytoma in foci. Immunoperoxidase stains showed a strong reactivity for CD34, and were weakly positive for vimentin. Electron microscopical examination revealed features of fibroblast; spindle to round tumor cells were arranged in groups and surrounded by collagen. Nucleoli were seldom prominent. The cytoplasm contained many microfilaments and a moderate number of cisternae of rough endoplasmic reticulum.
Actin Cytoskeleton
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Collagen
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Coloring Agents
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Cytoplasm
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Endoplasmic Reticulum, Rough
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Fibroblasts
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Hemangiopericytoma
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Hemorrhage
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Humans
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Hyalin
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Lung
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Male
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Necrosis
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Orbit
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Pleura
;
Solitary Fibrous Tumors*
;
Vimentin
3.Kikuchi's Disease of the Mesenteric Lymph Nodes Presenting as Acute Appendicitis.
Kyueng Whan MIN ; Ki Seok JANG ; Si Hyong JANG ; Young Soo SONG ; Woong NA ; Soon Young SONG ; Seung Sam PAIK
Korean Journal of Pathology 2007;41(1):44-46
Kikuchi's disease is a benign self-limiting necrotizing lymphadenitis that occurs most commonly in young women, and is usually found in the cervical lymph nodes. When there is an unusual location of involved lymph nodes, the diagnosis can be difficult. We recently treated a patient with Kikuchi's disease who had ileocecal mesenteric lymph node involvement; the patient presented with symptoms of acute appendicitis in an 11-year old boy. Although mesenteric lymph node involvement of Kikuchi's disease is very rare, Kikuchi's disease should be added to the differential diagnosis of acute appendicitis in patients with enlarged ileocecal mesenteric lymph nodes on radiological evaluation.
Appendicitis*
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Child
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Diagnosis
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Diagnosis, Differential
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Female
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Histiocytic Necrotizing Lymphadenitis*
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Humans
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Lymph Nodes*
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Lymphadenitis
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Male
;
Mesentery
4.Pharmacokinetic and Toxicokinetic Studies of Potential Antifungal Compounds, KAF-200522 and KAF-200522 . HCl, in Animal Models.
Kwang Han KONG ; Ju Young JUNG ; Kyo Hwan KOO ; Si Whan SONG ; Kap Ho KIM ; Zhong Ze HAN ; Seon Hwa LEE ; Ho Chul SHIN
Laboratory Animal Research 2010;26(4):399-405
Recent researches on clinically used triazole antifungal reagents are focused on their pharmacokinetic disadvantage which increases the probability of inducing adverse effects in patients. For this point, in the present laboratory, Chemon Inc., has investigated new antifungal reactive compounds, KAF-200522 and its chloride form, KAF-200522 . HCl, which has a modified triazole structure. Pharmacokinetic data were measured with LC-MS/MS in male mice which were orally treated with the above compounds at 10 mg/kg. Tmax and t1/2 of KAF-200522 . HCl were comparable to KAF-200522, but AUC and Cmax were 1.4 and 1.6 times higher than those of KAF-200522, respectively. In beagle dogs, AUC and Cmax of KAF-200522 . HCl were 2.7 and 1.4 times higher than those of KAF-200522, and t1/2 was 3.5 times higher than that of KAF-200522. Moreover, in beagle dogs, the oral bioavailability value of KAF-200522 . HCl was revealed as 31.0% to contrast to 6.2% of KAF-200522. In 1-week repeated oral treatment toxicity study of KAF-200522 in male rats, inhibition of body weight gain was observed in 120 mg/kg treatment group, and loss of body weight was observed in 600 mg/kg treatment group. In the toxicokinetic study of KAF-200522, no accumulation after the systemic exposure was observed. In conclusion, as to the new antifungal drug development, KAF-200522 . HCl was considered to be advantageous in pharmacokinetic characteristics compared to KAF-200522.
Animals
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Area Under Curve
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Biological Availability
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Body Weight
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Dogs
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Humans
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Indicators and Reagents
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Male
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Mice
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Models, Animal
;
Rats
5.Myxoma of the Larynx Presenting As a Nodule.
Young Soo SONG ; Si Hyong JANG ; Kyueng Whan MIN ; Woong NA ; Se Min JANG ; Young Jin JUN ; Seung Sam PAIK
Korean Journal of Pathology 2008;42(5):306-307
We describe herein a rare case of a laryngeal myxoma presenting as a nodule. Laryngeal myxomas involving the neck region, especially the laryngeal area, are quite rare. A 36-year-old male patient presented with a 2 month history of hoarseness. On laryngoscopic examination, there was a myxoid homogeneous transparent mass on the right vocal cord. On microscopic examination, the lesion was hypocellular and myxoid. The lesion showed stellate or spindle cells which were evenly dispersed in the poorly vascularized myxoid stroma. Although the incidence is extremely rare, a laryngeal myxoma should be considered in the differential diagnosis of laryngeal masses.
Male
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Humans
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Diagnosis, Differential
;
Incidence
6.Impact of Nocturia on Abnormal Daytime Sleepiness in Men with Lower Urinary Tract Symptoms/Benign Prostate Hyperplasia.
Seung Whan DOO ; Hong Jun LEE ; Won Jae YANG ; Hong Cheol AHN ; Jung Hoon KIM ; Si Jung PARK ; Jin AHN ; Yun Seob SONG
Korean Journal of Andrology 2012;30(1):40-44
PURPOSE: Nocturia is one of the most bothersome lower urinary tract symptoms (LUTS). The aim of the present study is to determine whether severe-nocturia have impact on the abnormal daytime sleepiness in men with LUTS/benign prostate hyperplasia (BPH). MATERIALS AND METHODS: Severe-nocturia was classified as twice or more per night. A total of 85 men met the criteria and constituted the study cohort. The patients had a detailed clinical evaluation, including a complete history, physical examination, urine analysis, urine culture, a digital rectal examination, serum prostate-specific antigen (PSA) level, prostate volume by transrectal ultrasonography, uroflowmetry and postvoid residual urine volume. LUTS and symptom-specific quality of life (QoL) were assessed using the IPSS. Patients were asked to complete an Epworth Sleepiness Scale questionnaire for daytime sleepiness. RESULTS: 43 patients had less than one, 42 patients had more than two episodes of nocturia. There was no significant difference of age, total prostate volume, PSA levels between patients with mild-nocturia and severe-nocturia. There was no significant difference of maximum flow rate (Qmax), voided volume and postvoid residual urine volume (PVR) between patients with mild-nocturia and severe-nocturia. There was significant decrease of total International Prostate Symptom Score (IPSS) scores and QoL index in patients with severe-nocturia compared in patients with mild-nocturia. The number of patients with abnormal daytime sleepiness in mild-nocturia and severe-nocturia were 4.7% (2/43), 16.7% (7/42), respectively (p<0.05). Regression coefficiency between percent of nocturia and total score of daytime sleepiness was significant (p<0.05) and regression coefficient (R) was 0.29. CONCLUSIONS: Our results indicate that severe-nocturia had impact on the abnormal daytime sleepiness in patients with LUTS.
Cohort Studies
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Digital Rectal Examination
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Humans
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Hyperplasia
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Lower Urinary Tract Symptoms
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Male
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Nocturia
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Physical Examination
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Prostate
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Prostate-Specific Antigen
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Quality of Life
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Surveys and Questionnaires
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Sleep Wake Disorders
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Urinary Tract
7.Antifungal Effects of New Synthetic Materials, KAF-200522 and KAF-200522-HCl, on in vitro and in vivo Models.
Ju Young JUNG ; Kwang Han KONG ; Kyo Hwan KOO ; Si Whan SONG ; Kap Ho KIM ; Zhong Ze HAN ; Yeo Jin LEE ; Jin Soo HAN
Laboratory Animal Research 2010;26(4):353-359
KAF-200522 and its chloride form, KAF-200522-HCl, were invented in Chemon inc. as new triazole antifungal agents with excellent activities in vivo and in vitro against wide range of fungi. As a result of in vitro susceptibility measurements, 80% minimum inhibitory concentrations (MIC80) of both test articles against Candida albican sp. and Aspergillus fumigatus sp. were below 0.0156 microg/mL, which were over 4,100 times lower than those of fluconazole against fluconazole resistant C. albican sp. and A. fumigatus sp., and were over 16 times lower than those of amphotericin B against above same fungi. Additionally, against representative dermatophytes, Trichophyton sp., the MIC80s of both test articles were below 0.0156 microg/mL which were over 64 times lower than those of fluconazole and amphotericin B. As in vivo antifungal activities in A. fumigatus sp. infected mouse models, KAF-200522 treatment group at 600 mg/kg showed 80% survival rate which was 2 times higher than that of amphotericin B and showed 13.7 days in the mean survival time (MST) which was about 2.1 times higher than that of amphotericin B. But in KAF-200522-HCl treatment groups, all animals were found dead in contrast to 40% survival rate in amphotericin B treatment group, however dose dependent increases in MST was revealed. In conclusion, antifungal activities of KAF-200522 and its mimics, KAF-200522-HCl in vitro and in vivo were confirmed in this study, therefore the potentiality of the present compounds to be developed into new antifungal drug was expected.
Amphotericin B
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Animals
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Antifungal Agents
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Arthrodermataceae
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Aspergillus fumigatus
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Candida albicans
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Fluconazole
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Fungi
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Mice
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Microbial Sensitivity Tests
;
Survival Rate
;
Trichophyton
8.The Study of Coronary Spasm by Follow-up Coronary Angiography in Variant Angina.
Jun Young JEONG ; Dae Sung LIM ; Jeong Ah KANG ; Min Su LEE ; Jeong Hee KIM ; In Kwan SONG ; Si Wan CHOI ; Jin Ok JEONG ; In Whan SEONG
Korean Circulation Journal 2002;32(9):791-797
BACKGROUND AND OBJECTIVES: The therapeutic duration of variant angina is controversial. This study sought to determine the remission rates for coronary artery spasms, the factors associated with remission and the changes in spasm sites. SUBJECTS AND METHODS: Fifty-eight patients were enrolled in the study. Initial, and follow-up, coronary angiographies (CAG), with ergonovine stimulation tests, were performed. Paired CAG were performed at a mean interval of 27+/-17 months. Medication was stopped 3 days prior to the follow-up CAG, and the occurrence of chest pain during these 3 days was studied. Coronary spasms were confirmed by follow-up CAG. Any changes, and the diameters, of spasm sites were analyzed on each paired CAG. RESULTS: The remission rate of coronary spasms was 24% (14 patients), when the smoking group (49 patients) stopped smoking (31 patients), the remission rate was 29% (9 patients). In the current smoking group (18 patients), the remission rate was 6% (1 patient, p=0.05). 31 patients had chest pains after stopping medication prior to their follow-up CAG. Of those patients, 1 patient had a remission (3%). Among another 27 patients with no chest pain, 13 patients had a remission (48%, p<0.001). In 28 out of 44 patients (64%, non-remission), fluctuations in spastic locations were observed at the follow-up CAG. The interval changes in the diameter of the spasm sites were not significant. CONCLUSION: The non-chest pain group showed higher remission rates, but lack of chest pain did not identify the loss of coronary spasm. Atherosclerosis at spasm sites did not progress, as confirmed by the paired CAG in our study.
Angina Pectoris, Variant
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Atherosclerosis
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Chest Pain
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Coronary Angiography*
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Coronary Artery Disease
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Coronary Vessels
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Ergonovine
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Follow-Up Studies*
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Humans
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Muscle Spasticity
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Smoke
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Smoking
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Spasm*
9.Intravascular Ultrasound Findings of Arterial Remodeling at the Sites of Focal Coronary Spasm in Patients with Vasospatic Angina.
Yoon Haeng CHO ; Myeong Ki HONG ; Seong Wook PARK ; Cheol Whan LEE ; Si Wan CHOI ; Sung Tae CHO ; Kyoung Seok RHEE ; Duk Hyun KANG ; Jae Kwan SONG ; Jae Joong KIM ; Seung Jung PARK
Korean Circulation Journal 2001;31(2):182-190
BACKGROUND: There is little data about the intravascular ultrasound (IVUS) findings in the patients with vasospastic angina, especially with respect to patterns of vascular remodeling. METHODS: Coronary spasm was documented by angiography and ECG evidence of ischemia in 36 patients after administration of ergonovine (cumulative doses up to 350 microgram). After relief of spasm using 1,000 microgram of intracoronary nitroglycerin, IVUS imaging was performed and analyzed using standard methodology. The 36 focal spasm sites were compared to the proximal and distal reference segments. RESULTS: The angiographic baseline minimum lumen diameter measured 1.78+/-0.66mm, which decreased to 0.66+/-0.38mm with ergonovine provocaton (p<0.0001), increased to 2.66+/-0.64mm after intracoronary nitroglycerin (p<0.0001 compared to baseline and post-ergonovine), and did not change after the IVUS imaging (2.66+/-0.63mm, p=.9). Coronary artery spasm was observed in angiographically normal segments in 6 patients and near normal segments (<10% angiographic diameter stenosis by visual estimate) in 30. Atherosclerotic lesions were observed at all coronary spasm sites; the mean plaque burden measured 56% at the spasm site and 35% at the reference site. The plaque composition of spasm site was hypoechoic in 31 and hyperechoic, noncalcific in 5; there was no calcium. Positive remodeling (spasm site arterial area>proximal reference) was present in 5; intermediate remodeling (proximal reference >spasm site >distal reference arterial area) was present in 7; and negative remodeling (spasm site arterial area
10.Quantitation and Radical Scavenging Activity Evaluation of Iridoids and Phenylethanoids from the Roots of Phlomis umbrosa (Turcz.) using DPPH Free Radical and DPPH-HPLC Methods, and their Cytotoxicity
Duc Dat LE ; Duc Hung NGUYEN ; Bing Tian ZHAO ; Byung Sun MIN ; Si Whan SONG ; Mi Hee WOO
Natural Product Sciences 2019;25(2):122-129
The roots of Phlomis umbrosa (Turcz.) (Phlomidis Radix) have been traditionally used to treat cold, reduce swelling and staunch bleeding. Four iridoids (1 – 3 and 5) and six phenylethanoid derivatives (4, and 6 – 10) were isolated from the roots of P. umbrosa. A simple, sensitive, and reliable analytical HPLC/PDA method was developed, validated, and applied to determine 10 marker compounds in Phlomidis Radix. Furthermore, the isolates were evaluated for cytotoxic and anti-oxidant activities as well as DPPH-HPLC method. Among them, compounds 4 and 6 – 9 displayed potent anti-oxidant capacities using DPPH assay with IC50 values of 27.7 ± 2.4, 10.2 ± 1.1, 18.0 ± 0.8, 19.1 ± 0.3, and 19.9 ± 0.6 µM, and compounds 6, 8, and 9 displayed significant cytotoxic activity against HL-60 with IC50 values of 35.4 ± 3.1, 18.6 ± 2.0, and 42.9 ± 3.0 µM, respectively.
Hemorrhage
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Inhibitory Concentration 50
;
Iridoids
;
Methods
;
Phlomis