1.Pulmonary vasculitis.
Tuberculosis and Respiratory Diseases 2000;48(6):825-836
No abstract available.
Vasculitis*
2.A Case of allergic Contact Dermatitis from Glutaraldehyde.
Gil Ju YI ; Hyun Chul CHOI ; Kyu Joong AHN
Korean Journal of Dermatology 1999;37(4):500-504
Glutaraldehyde is commonly used as a biocide to disinfect delicate instruments such as dental instruments, to treat warts, hyperhidrosis and bullous diseases and as a preservative in various materials. Contact sensitivity to glutaraldehyde may not be detected, because it is not included in the standard screening chemicals recommended in the screening tests. We report a case of allergic contact dermatitis caused by Wydex(2% glutaraldehyde). A 54-year-old female made a visit to our departrnent with eczematous dermatitis of both hands, neck and face. She worked as a cleaner in delivery room and newborn nursery, and had developed the dermatitis 1 month after Wydex' containing 2% glutaraldehyde had been to clean the rooms. She had no family or personal history of atopy or contact dermatitis. Patch tests with Korean Standard(KS-1000) and Wydex were performed, and patch tests with 2% glutaraldehyde, 0.2% gluteraldehyde and rubber mix followed. The positive results were, Wydex 2% ++, 0.2% +, 0.02% + and. glutaraldehyde 2% aq. +, 0.2% aq. + on day 2 and day 4. We confirmed that the skin lesions had been caused by Wydex . The symptoms were eradicated after she changed her work environment and there has been no evidence of recurrence.
Delivery Rooms
;
Dental Instruments
;
Dermatitis
;
Dermatitis, Allergic Contact*
;
Dermatitis, Contact
;
Eczema
;
Female
;
Glutaral*
;
Hand
;
Humans
;
Hyperhidrosis
;
Infant, Newborn
;
Mass Screening
;
Middle Aged
;
Neck
;
Nurseries
;
Patch Tests
;
Recurrence
;
Rubber
;
Skin
;
Warts
3.The Role of Computed Tomography of the Bladder Cancer with Perivesical Fat Infiltration.
Hyun Chul IN ; Kang Hyun LEE ; Hi Joong AHN
Korean Journal of Urology 1996;37(1):54-57
Total cystectomy was performed to the 40 patients with urinary bladder tumor who were found perivesical fat infiltration by computerized tomography. 25 patients were previously untreated, and 15 patients had undergone transurethral resection or biopsy of the tumor before computerized tomography. The histopathological stage was compared to the preoperative computerized tomography stage. In pathologic specimen, perivesical fat infiltration was found in 62.5% of the cases, whereas perivesical fat infiltration was not found in 37.5% of the cases. In untouched tumors or after transurethral resection computerized tomography accuracy demonstrated no significant difference.
Biopsy
;
Cystectomy
;
Humans
;
Urinary Bladder Neoplasms*
;
Urinary Bladder*
4.Complications of Transurethral Resection of Bladder Tumor.
Hyun Jung KIM ; Kang Hyun LEE ; Hi Joong AHN
Korean Journal of Urology 1997;38(1):65-69
A clinical observation was made on the 236 patients who had undergone transurethral resection of bladder tumor(TUR) between Jan. 1990. and Feb. 1996. in the Department of Urology, Korea Cancer Center focusing on complications. The mean operating time was 59.0 minutes(n=400). The most common immediate complication was bleeding(1.8%), and the remainder was nonurologic fever(0.8%). The delayed complication was urethral stricture(1.0%) requiting visual urethrotomy. The immediate postoperative morbidity was 2.5% and risk factors for immediate morbidity after TUR were operating time longer than 60 minutes and tumor, invading the muscle or more deeply(p<0.05, by Chi-square test). The delayed morbidity was 1. 0% and the only risk factor for delayed morbidity after TUR was the number of ~IJR more than 2(p<0.05, by Chi-square test). Careful attention to surgical details and indications is needed to reduce the amount and significance of the postoperative morbidity.
Humans
;
Korea
;
Risk Factors
;
Urinary Bladder Neoplasms*
;
Urinary Bladder*
;
Urology
5.Complications of Transurethral Resection of Bladder Tumor.
Hyun Jung KIM ; Kang Hyun LEE ; Hi Joong AHN
Korean Journal of Urology 1997;38(1):65-69
A clinical observation was made on the 236 patients who had undergone transurethral resection of bladder tumor(TUR) between Jan. 1990. and Feb. 1996. in the Department of Urology, Korea Cancer Center focusing on complications. The mean operating time was 59.0 minutes(n=400). The most common immediate complication was bleeding(1.8%), and the remainder was nonurologic fever(0.8%). The delayed complication was urethral stricture(1.0%) requiting visual urethrotomy. The immediate postoperative morbidity was 2.5% and risk factors for immediate morbidity after TUR were operating time longer than 60 minutes and tumor, invading the muscle or more deeply(p<0.05, by Chi-square test). The delayed morbidity was 1. 0% and the only risk factor for delayed morbidity after TUR was the number of ~IJR more than 2(p<0.05, by Chi-square test). Careful attention to surgical details and indications is needed to reduce the amount and significance of the postoperative morbidity.
Humans
;
Korea
;
Risk Factors
;
Urinary Bladder Neoplasms*
;
Urinary Bladder*
;
Urology
6.Obstructive pneumonitis of right lower lung field.
Kang Hyun AHN ; Chong In LEE ; Yong Gyu LEE ; Suk Joong YONG ; Kye Chul SHIN
Tuberculosis and Respiratory Diseases 1992;39(4):366-369
No abstract available.
Lung*
;
Pneumonia*
7.MR findings of metastatic brain tumors.
Joong Mo AHN ; Kee Hyun CHANG ; Moon Hee HAN ; Sang Hoon CHA ; Jae Wook RYOO
Journal of the Korean Radiological Society 1993;29(3):355-361
The purpose of this study is to describe the magnetic resonance imaging (MR) findings of metastatic brain tumors with emphasis on the signal intensities of the lesion on MR. Thirty four patients with intracranial metastases were studies with MR imaging. The diagnosis was established on the basis of either brain biopsy or combination of brain MR findings and the presence of primary tumors. The primary tumors include lung cancer (n=18), breast cancer (n=3), stomach cancer (n=3), rectal cancer (n=1), renal cell carcinoma (n=1), hepatocellular carcinoma(n=1), ovarian cancer (n=1), thyroid cancer (n=1), melanoma (n=1) and unknown primary sites (n=4). The parenchymal lesions were solitary in 35% (12/34) and multiple in 65% (22/34). The size of the lesions was variable, ranging from several millimeters to 5cm in diameter. The corticomedullar junction of the cerebral heispheres was the most common location of the lesions (68%). The signal intensity of solid portion of the lesions was usually either isointense (44%) or hypointense (29%) on T1-weighted images, whereas it appeared in isointense (47%), hypointense (8%) or hyperintense (11%) on proton density-weighted or T2-weighted images. The remaining cases showed mixed signal intensities. The enhancement patterns were variable including nodular (<1cm) (6%), homogenous (19%), heterogeneous (10%), ring-like enhancement (22%) or mixed pattern(43%). The size of surrounding edema was larger than the tumor diameter in 76%. In conclusion, although there are no specific MR findings of intracranial metastasis except multiplicity, intracranial metastasis should be included in differential diagnosis with high priority, when a solitary mass showing isointensity on boty T1-and T2-weighted images with massive surrounding edema, especially in the corticomedullary junction of the cerebral hemispheres is encountered.
Biopsy
;
Brain Neoplasms*
;
Brain*
;
Breast Neoplasms
;
Carcinoma, Renal Cell
;
Cerebrum
;
Diagnosis
;
Diagnosis, Differential
;
Edema
;
Humans
;
Lung Neoplasms
;
Magnetic Resonance Imaging
;
Melanoma
;
Neoplasm Metastasis
;
Ovarian Neoplasms
;
Protons
;
Rectal Neoplasms
;
Stomach Neoplasms
;
Thyroid Neoplasms
8.MR findings of metastatic brain tumors.
Joong Mo AHN ; Kee Hyun CHANG ; Moon Hee HAN ; Sang Hoon CHA ; Jae Wook RYOO
Journal of the Korean Radiological Society 1993;29(3):355-361
The purpose of this study is to describe the magnetic resonance imaging (MR) findings of metastatic brain tumors with emphasis on the signal intensities of the lesion on MR. Thirty four patients with intracranial metastases were studies with MR imaging. The diagnosis was established on the basis of either brain biopsy or combination of brain MR findings and the presence of primary tumors. The primary tumors include lung cancer (n=18), breast cancer (n=3), stomach cancer (n=3), rectal cancer (n=1), renal cell carcinoma (n=1), hepatocellular carcinoma(n=1), ovarian cancer (n=1), thyroid cancer (n=1), melanoma (n=1) and unknown primary sites (n=4). The parenchymal lesions were solitary in 35% (12/34) and multiple in 65% (22/34). The size of the lesions was variable, ranging from several millimeters to 5cm in diameter. The corticomedullar junction of the cerebral heispheres was the most common location of the lesions (68%). The signal intensity of solid portion of the lesions was usually either isointense (44%) or hypointense (29%) on T1-weighted images, whereas it appeared in isointense (47%), hypointense (8%) or hyperintense (11%) on proton density-weighted or T2-weighted images. The remaining cases showed mixed signal intensities. The enhancement patterns were variable including nodular (<1cm) (6%), homogenous (19%), heterogeneous (10%), ring-like enhancement (22%) or mixed pattern(43%). The size of surrounding edema was larger than the tumor diameter in 76%. In conclusion, although there are no specific MR findings of intracranial metastasis except multiplicity, intracranial metastasis should be included in differential diagnosis with high priority, when a solitary mass showing isointensity on boty T1-and T2-weighted images with massive surrounding edema, especially in the corticomedullary junction of the cerebral hemispheres is encountered.
Biopsy
;
Brain Neoplasms*
;
Brain*
;
Breast Neoplasms
;
Carcinoma, Renal Cell
;
Cerebrum
;
Diagnosis
;
Diagnosis, Differential
;
Edema
;
Humans
;
Lung Neoplasms
;
Magnetic Resonance Imaging
;
Melanoma
;
Neoplasm Metastasis
;
Ovarian Neoplasms
;
Protons
;
Rectal Neoplasms
;
Stomach Neoplasms
;
Thyroid Neoplasms
9.Clinical Characteristics of Nontraumatic Acute Renal Infarction.
Byung Cheol AHN ; Se Joong KIM ; Hyun Soo AHN
Korean Journal of Urology 2004;45(8):788-792
Purpose: Early diagnosis and treatment are essential features to save the kidney in patients with an acute renal infarction. To reduce the delay in diagnosis, the clinical features and treatments of an acute renal infarction were evaluated. Materials and Methods: The medical records of 19 patients (14 men and 5 women) diagnosed with an acute renal infarction were retrospectively analyzed. Symptoms, findings of a cardiologic evaluation, laboratory findings, presumptive diagnosis and treatments were evaluated. Results: All patients complained of flank or abdominal pain. Fifty-three percent of the patients had a history of cardiovascular disease and 37% had no history of specific illnesses. The level of serum LDH was markedly elevated in all patients that performed the test. Initially, only 4 patients were diagnosed as acute renal infarction. In the others, the presumptive diagnoses were urinary stone, acute abdomen, aortic dissection and so forth. Seven patients were managed with conservative care due to the delay in diagnosis or poor general condition. Nine patients were managed with systemic anticoagulation and 3 with intra-arterial thrombolytic therapy. Conclusions: An acute renal infarction must be considered as one of the presumptive diagnoses in patients presenting with flank or abdominal pain and a history of cardiovascular diseases. Prompt CT scanning and testing of the serum LDH level will help in the accurate and immediate diagnosis of an acute renal infarction.
Abdomen, Acute
;
Abdominal Pain
;
Cardiovascular Diseases
;
Diagnosis
;
Early Diagnosis
;
Humans
;
Infarction*
;
Kidney
;
Male
;
Medical Records
;
Retrospective Studies
;
Thrombolytic Therapy
;
Tomography, X-Ray Computed
;
Urinary Calculi
10.A Case of Child with Obstructive Sleep Apnea Syndrome Recurred after Adenotonsillectomy.
Curie KIM ; Dong Soon KIM ; Hyun Joo SEO ; Hong Beom SHIN ; Eui Joong KIM ; Hyun Joon SHIM ; Young Min AHN
Sleep Medicine and Psychophysiology 2008;15(2):94-99
The most common cause of obstructive sleep apnea syndrome (OSAS) in childhood is adenotonsillar hypertrophy. Adenotonsillectomy improves the symptoms quite well in most cases. However, some patients could experience the OSAS again after adenotonsillectomy, who might have several risk factors such as incomplete operation, misdiagnosis, combined anatomical malformation, sinusitis or chronic allergic rhinitis, obesity, initial severe OSAS, and early onset OSAS. We report a case of 11-year-old obese boy who presented with snoring for several years. He was obese with body mass index (BMI) of 26.3 kg/m2 and also found to have fatty liver by ultrasonogram. Initial polysomnography (PSG) showed that he met the criteria of severe OSAS with the apnea-hypopnea index (AHI) of 70.5. He underwent adenotonsillectomy and symptoms improved immediately. Four months later symptoms were relieved with AHI of 0, but 1 year after the adenotonsillectomy he started to complain snoring again and the subsequent PSG results showed that OSAS has relapsed with AHI of 43. Paranasal sinus X-ray and physical examination showed sinusitis and re-growth of adenoid. Obesity was proved not to be a contributing factor because his BMI decreased to normal range (23.1 kg/m2) after diet control and regular exercise. Also, liver transaminase was normalized and fatty liver was disappeared on follow-up abdominal ultrasonogram. After treatment of sinusitis, symptoms were relieved with decreased AHI (8.5). This case suggests that simple adenotonsillectomy might not be the end of OSAS treatment in childhood. Patients who had adenotonsillectomy should be followed by subsequent PSG if symptoms recur. It is also important to be aware of risk factors in the recurrent OSAS for the proper intervention according to the cause.
Adenoids
;
Body Mass Index
;
Child
;
Diagnostic Errors
;
Diet
;
Fatty Liver
;
Follow-Up Studies
;
Humans
;
Hypertrophy
;
Liver
;
Obesity
;
Physical Examination
;
Polysomnography
;
Reference Values
;
Rhinitis
;
Rhinitis, Allergic, Perennial
;
Risk Factors
;
Sinusitis
;
Sleep Apnea, Obstructive
;
Snoring