1.Endorectal Coli MRI in the Local Staging of Clinically Organ Confined Prostate Cancer.
Yong Jae KIM ; Jun Hyuk HONG ; Han Jong AHN
Korean Journal of Urology 2000;41(9):1057-1062
No abstract available.
Magnetic Resonance Imaging*
;
Prostate*
;
Prostatic Neoplasms*
2.Early and Late Complications of Radical Retropublic Prostatectomy.
Jae Won LEE ; Choung Soo KIM ; Han Jong AHN
Korean Journal of Urology 2000;41(11):1409-1414
No abstract available.
Prostatectomy*
3.The Prognostic Value of Fuhrman Nuclear Grade, 1997 TNM Classification and cell Type in Renal Cell Carcinoma.
Uk LEE ; Kyu Rae KIM ; Han Jong AHN
Korean Journal of Urology 2001;42(1):32-39
PURPOSE: It is agreed that tumor stage is the definitive prognostic indicator for patients with renal cell carcinoma. We investigated pathologic grade and cell subtype as another prognostic in each tumor stage. MATERIALS AND METHODS: We reviewed the medical records of 206 patients who underwent partial or radical nephrectomy for renal cell carcinoma between January 1991 and June 1998. Renal cell carcinoma grade, stage and cell subtype (conventional [clear cell], papillary, chromophobe, sarcomatoid type) were evaluated using the 1997 Union International Contre Ie cancer (UICC) and the American Joint Committee on Cancer (AJCC) grading, TNM staging criteria and renal cell carcinoma classification. Kaplan -Meier survival curves were used to determine 5-year survival for all patient groups. Univariate analysis using log rank test was performed to evaluate the prognostic significance of TNM stage, Fuhrman nuclear grade, cell subtype and tumor size. We investigated pathologic grade and cell subtype with log rank teat whether those were another significant prognostic factors in each tumor stage. Multivariate analysis was performed to determine which factors had an independent impact on survival of patients with renal cell carcinoma. RESULTS: Univariate analysis revealed that TNM stage (p<0.001), pathologic grad (p<0.001) were the important prognostic indicators for renal cell carcinoma. Survival was affected significantly by tumor size when cutoff diameter for localized T1 lesions was 7cm but not 2.5cm. Pathologic grade had a significant impact on patient survival (p<0.0001). In the cell subtype chromophobe type had the best survival and sarcomatoid type had the worst survival though cell subtype did not appear to affect survival significantly (p=0.0583). Multivariate analysis revealed that N classification (p=0.009) and M classification (p=0.018) were the most important prognostic indicators for cell subtype (p=0.841) were not shown to have any independent impact on patient survival. In the group of localized disease(TXN0M0 stage) at the diagnosis, cell subtype had a significant impact on survival in T1(p<0.001), T2(p=0.01) and T3(p=0.029) and grade in T1(p=0.0016) and T3(p=0.0054). CONCLUSIONS: Pathologic grade and cell subtype were significant predictors of survival in each T stage of localized disease though they didn't have independent impact on the patient survival.
Carcinoma, Renal Cell*
;
Classification*
;
Diagnosis
;
Humans
;
Joints
;
Medical Records
;
Multivariate Analysis
;
Neoplasm Staging
;
Nephrectomy
4.Santonin-kainic acid complex as a mass chemotherapeutic of Ascaris lumbricoides control in Korea.
Soon Hyung LEE ; Se Chul KANG ; Jong Ho AHN ; Jung Woo LEE ; Han Jong RIM
The Korean Journal of Parasitology 1972;10(2):79-85
Santonin-kainic acid complex was evaluated as a chemotherapeutic of the mass treatment of the Ascaris lumbricoides infection in Korea. The results could be summarized as follows: The negative conversion rate was 82.9% in average in 4 treated groups. Some variations of negative conversion rate among the treated groups were noticed. The egg reduciton rate was 97.7% in average and the results were rather uniform among the three evaluated groups. By the analysis of egg reduction, it seems that the lightly infected cases whose E.P.G. were under 5,000 were resistant to treatment with the less reduced egg output. After the treatment with this complex, the number of egg discharged cases were reduced to 1.84% and the average number of discharge eggs per incompletely treated or untreated cases were reduced to 12.5% compared with the level of before-treatment egg output. The successive observations of the pattern of worm expulsion after drug intake was made. The worms were mostly expelled in the stool within 3 days, and 58.9% of total expelled worms were collected within 24-hour stool. The minimum length of the immature worms expelled was 7.6cm. Among the 659 Ascaris collected in the first-day stool from 91 rural people, 8.5% were in the range of 7.6-12.2 cm-long, immature worms. The sex ratio, male: female= 0.69: 1.
parasitology-helminth-nematoda
;
Ascaris lumbricoides
;
chemotherapy
;
Santonin
;
kainic acid
5.Initial Clinical Trials of Urinary Stones with Dornier Lithotriptor MPL 9000.
Tei Young AHN ; Choung Soo KIM ; Han Jong AHN
Korean Journal of Urology 1990;31(5):677-684
Extracorporeal shock wave lithotripsy was performed in 231 patients for 13 months with Dornier MPL 9000 lithotriptor. The 231 patients had renal ( 48.9%) or ureteral (51.1%) stones varying from 0.6 to 4.4cm (mean 1.2cm) in size. Among 231 patients, 184 patients (79.7%) completed the treatment with 1 session and the number of treatment sessions increased in larger stones and in situ impacted ureteral stones, with an average of 1.3 sessions. The success rate (rate free of calculi plus that of clinically insignificant residual fragments) was 98.3 %. No general or regional anesthesia was required but parental analgesics were required in 22.9% of the treatment sessions. There were no significant complications in any patient. Therefore, extracorporeal shock wave lithotripsy with Dornier MPL 9000 lithotriptor is considered to be a safe and efficient procedure for initial treatment of urinary stones.
Analgesics
;
Anesthesia, Conduction
;
Calculi
;
Humans
;
Lithotripsy
;
Parents
;
Shock
;
Ureter
;
Urinary Calculi*
6.Spontaneous Rupture of Hemorrhage Renal Cyst into the pyelocaliceal System.
Han Jong AHN ; Eun Sil YU ; Tai Young AHN ; Kwang Hoon KIM
Korean Journal of Urology 1990;31(1):116-119
We report on a patient with spontaneous rupture of hemorrhagic renal cyst into the pyelocaliceal system. He had no history of trauma, bleeding disorders, urinary tract infection or urinary tract obstruction. Gross hematuria followed by left flank pain occurred 1 day prior to admission. Although radiologic findings were suggestive of rupture of renal cyst into the calyx or calyceal diverticulum. exclusion of malignant disease or renal carbuncle was difficult. He was managed by partial nephrectomy. Microscopic findings revealed ruptured cyst lined with low cuboidal epithelium without evidence of malignancy.
Carbuncle
;
Diverticulum
;
Epithelium
;
Flank Pain
;
Hematuria
;
Hemorrhage*
;
Humans
;
Nephrectomy
;
Rupture
;
Rupture, Spontaneous*
;
Urinary Tract
;
Urinary Tract Infections
7.Bladder Tumor: 20 years Experiences.
Korean Journal of Urology 1986;27(3):451-457
Five hundred forty three patients with transitional cell carcinoma managed at Seoul National University Hospital during a 20 year period between 1965 and 1984 art analyzed retrospectively. We selected 108 patients with stage A tumor for analysis of recurrence by excluding 95 patient with a prior history of bladder cancer, 14 patients whose initial treatment were a total cystectomy, 12 patients whose disease progressed in stage within 3 years following treatment, 58 patients followed up less than 3 years and 65 patients lost to follow up from 352 patients with stage A tumor. The over-all recurrent rate within the first 3 years following resection of stage A tumor was 70%. The influence of the tumor size, number and grade on recurrence was examined. Disease-free status by 36 months according to the tumor size 1cm or smaller, 1-2cm, 3-4cm, 5cm or larger was 57%, 31%, 17% and 7% respectively. All differences were statistically significant. There was no significant difference of recurrence rate between 1 tumor and 2 tumors, but 3 or more tumors showed significantly higher recurrence rate than 2 or less tumors. There was no significant difference of recurrent rate among grade I, Fade II , grade III tumors combined. Total cystectomies without pelvic lymphadenectomy or preoperative irradiation were performed in 110 patients and 77 patients were adequately followed up. Five-year survival rate of stage A, B, C, D was 87%, 26%, 11%, and 0% respectively. Operative mortality among patients undergoing total cystectomy was 4.5%. Metastases were found in the lymph node, adjacent organs and bone in the order of frequency. Only one patient with stage D tumor on initial presentation survived more than 5 years and the average survival length of stage D was 8 months.
Carcinoma, Transitional Cell
;
Cystectomy
;
Humans
;
Lost to Follow-Up
;
Lymph Node Excision
;
Lymph Nodes
;
Mortality
;
Neoplasm Metastasis
;
Recurrence
;
Retrospective Studies
;
Seoul
;
Survival Rate
;
Urinary Bladder Neoplasms*
;
Urinary Bladder*
8.Efficacy of Norfloxacin(Neutam 400.
Sang Eun LEE ; Jae Yong CHUNG ; Han Jong AHN ; Young Kyoon KIM
Korean Journal of Urology 1985;26(5):507-511
Forty five patients with urinary tract infection were treated with 100mg Norfloxacin twice daily for 3 or 7 days according to the seriousness of infection. Of the 19 patients with uncomplicated urinary tract infection including 5 patients with acute bacterial prostatitis or acute epididymitis, none had bacteriuria 7 days after therapy and 1 patient was reinfected 14 days after therapy discontinuation. Of the 26 patients with complicated urinary tract infection, 17 patients(65%) were uninfected 7days after therapy and among them, 3 patients were reinfected I4 days after discontinuation of therapy. Of the 9 patients with persistent infection, 4 patients had resistant bacteriuria and 5 patients had bacteriuria different from that found before therapy. Eradication rate of E. coli, Enterobacter spp., Proteus spp., Pseudomonas spp., and Serratia spp. were 100%,, 100%,, 100%,, 80% and 40%, respectively. Further clinical envaluation seems worthwhile especially in pseudomonas infections since it offers one of the very few alternatives for oral treatment of pseudomonas infections which today may require hospitalization only for the purpose of injectible antibiotics.
Anti-Bacterial Agents
;
Bacteriuria
;
Enterobacter
;
Epididymitis
;
Hospitalization
;
Humans
;
Male
;
Norfloxacin
;
Prostatitis
;
Proteus
;
Pseudomonas
;
Pseudomonas Infections
;
Serratia
;
Urinary Tract Infections*
;
Urinary Tract*
9.CHONDROBLSTOMA ON TEMPOROMANDIBULAR JOINT, A CASE REPORT.
Hyun Ho CHANG ; Seung Yun HAN ; Hyung Mo AHN ; Won Jong CHOI ; Jae Seung KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1997;23(4):756-762
Chondroblastoma is a rare primary bone tumor which originates from cartilage, and represents approximate 1% af all bone tumor. The chondroblastoma arises most frequently from the epiphysis of the long bones with the humerus being the commonest site. It afflicts usually the young under 25 years with greater incidence in male. As there is no cartilage cell on craniofacial bone which is mainly fromed by intramembranous ossification, the chondroblastoma on the craniofacial bone is extremely rare. But the chondroblastoma recurred frequently in craniofacial bone when the mass is excised incompletely or curretted and, as the tumor has the outstanding ability of local invasiveness, it destructs the adjacent bone. In addition, it is difficult to diagnose differentially from sarcoma or giant cell tumor histopathologically. Due to the entities described above, it is necessary to remove the entire tumor mass as complete as possible, to treat with radiation pre or postoperatively for preventing from recurrence, and to observe for a long time. The chondroblastoma on temporal bone is rare and is difficult to diagnose and treat successfully. So we'd like to present a case of chondroblastoma which was originated from temporal side of TMJ with literatural review.
Cartilage
;
Chondroblastoma
;
Epiphyses
;
Giant Cell Tumors
;
Humans
;
Humerus
;
Incidence
;
Male
;
Recurrence
;
Sarcoma
;
Temporal Bone
;
Temporomandibular Joint*
10.Molecular Analysis of Oculocutaneous Albinism Patients in Korea.
Ji Hwan HWANG ; Sang Woong YOUN ; Jong Seong AHN ; Kyu Han KIM ; Kyoung Chan PARK
Annals of Dermatology 1997;9(3):182-187
BACKGROUND: Oculocutaneous albinism (OCA) is a genetic disorder of the melanin pigment system in which melanin synthesis is reduced or absent in the skin, hair, and eyes. OCA is classified into two major types, and tyrosinase-related OCA can be produced by mutations of the structural gene for tyrosinase enzyme (TYR gene). OBJECTIVE: The purpose of this study was to analyze the segregation of mutant alleles of the TYR gene in tyrosinase-negative and tyrosinase-positive Korean OCA patients and families. METHODS: We amplified exon I, II, and III of the TYR gene of Korean OCA patients and their families by polymerase chain reactions (PCR), and analyzed the mutations by restriction fragment length polymorphism (RFLP) analysis in exon I and single-strand conformation polymorphism (SSCP) analyses in exon II and exon III. RESULTS: Two tyrosinase-negative cases showed mutations in exon I. Four tyrosinase-nega-tive cases and one tyrosinase-positive case showed mutations in exon II, and one tyrosinase-neg- ative case showed mutations in exon III. In summary, we found three kinds of mutation in four tyrosinase-negative OCA patients and one tyrsinase-positive OCA patient. CONCLUSIONS: RFLP and SSCP analysis can provide a basis for a rapid and sensitive screening system to detect TYR gene mutations of Korean OCA patients and their families.
Albinism, Oculocutaneous*
;
Alleles
;
Exons
;
Hair
;
Humans
;
Korea*
;
Mass Screening
;
Melanins
;
Monophenol Monooxygenase
;
Polymerase Chain Reaction
;
Polymorphism, Restriction Fragment Length
;
Polymorphism, Single-Stranded Conformational
;
Skin