1.Erosion of an Inflatable Penile Prosthesis Reservoir into the Bladder, Presenting Bladder Calculi .
Ju Heon YANG ; Ji Sung PARK ; Hyeuk Jun JANG ; Byung Hwa LEE
Korean Journal of Urology 2004;45(10):1077-1079
Complications of penile prosthesis include malfunction, infection and patient dissatisfaction. Herein, a rare complication of a retained reservoir having eroded into the bladder after the removal of the penile components of a three-piece penile prosthesis, is reported. A 39-year-old man complained of irritative voiding symptoms. The symptoms had developed 4 years after the removal of the penile components of the prosthesis. The erosion of the reservoir into the bladder was discovered incidentally during the treatment of bladder calculi. The reservoir was removed by an open vesicolithotomy.
Adult
;
Calculi
;
Cytochrome P-450 CYP1A1
;
Humans
;
Penile Prosthesis*
;
Prostheses and Implants
;
Urinary Bladder Calculi*
;
Urinary Bladder*
2.Adenoma of Anogenital Mammary-like Glands on the Labium Major.
Kyoung Ae JANG ; Hwa Jung LEE ; Jee Ho CHOI ; Kyung Jeh SUNG ; Kee Chan MOON ; Jai Kyoung KOH
Korean Journal of Dermatology 1998;36(6):1137-1138
We describe a 38-year-old woman with an adenoma of anogenital mammary-like glands on the left labium major. Adenomas of anogenital mammary-like glands have been rarely reported with various nomenclatures in the English literature. The knowledge of this rare disease entity may be important to diagnose and treat the lesions arising on the anogenital areas.
Adenoma*
;
Adult
;
Female
;
Humans
;
Rare Diseases
3.Clinical Characteristics of Benign Eyelid Tumors.
Sung Min JANG ; Hwa LEE ; Se Hyun BAEK
Journal of the Korean Ophthalmological Society 2016;57(2):174-180
PURPOSE: To report the relative frequency and clinical characteristics of patients with benign eyelid tumors. METHODS: A retrospective study of 192 consecutive patients admitted to Korea University Ansan Hospital with benign eyelid tumor between January 2009 and December 2014 was undertaken, and clinical records including age, sex, involved site, and pathology of tumors were reviewed retrospectively. All eyelid tumors were confirmed histopathologically. RESULTS: The sexual distribution revealed 87 males and 105 females with benign eyelid tumors. The mean age at diagnosis was 42.6 +/- 19.2 years. Molluscum contagiosum (5.5 +/- 3.5 years) and pilomatrixoma (14.0 +/- 15.6 years) were generally found in younger individuals, while seborrheic keratosis (60.2 +/- 15.8 years) and squamous cell papilloma (50.5 +/- 13.4 years) occurred predominantly in elderly patients. Tumors were most common on the upper lid (63.0%). The four most frequent subtypes were melanocytic nevus (37.5%), epidermal cyst (8.3%), squamous cell papilloma (5.7%), and seborrheic keratosis (5.2%). CONCLUSIONS: The most common histopathological diagnosis of benign eyelid tumors was melanocytic nevus. The results of this study provide epidemiological information that will be useful for diagnosis and therapy of such tumors.
Aged
;
Diagnosis
;
Epidermal Cyst
;
Eyelids*
;
Female
;
Gyeonggi-do
;
Humans
;
Keratosis, Seborrheic
;
Korea
;
Male
;
Molluscum Contagiosum
;
Nevus, Pigmented
;
Papilloma
;
Pathology
;
Pilomatrixoma
;
Retrospective Studies
4.A Case of Primary Malignant Hemangiopericytoma of the Lung.
Kang Moon LEE ; Joong Hyun AHN ; Kyo Young LEE ; Theresa JANG ; Hwa Sik MOON ; Sung Hak PARK ; Jeong Sup SONG
Tuberculosis and Respiratory Diseases 1997;44(3):655-660
Hemangiopericytoma is a rare vascular tumor arising from pericytes. The tumor usually develops in the skin or subcutaneous tissue, particularly in the extremities.4 pulmonary origin of hemangiopericytoma is known to be quite rare. It has the potential to become a highly malignant lesion, so wide excision is the treatment of choice. We present a case of primary malignant hemangiopericytoma of the lung and discuss the clinical symptoms, diagnosis, therapy and prognosis within the context of a brief review.
Diagnosis
;
Hemangiopericytoma*
;
Lung*
;
Pericytes
;
Prognosis
;
Skin
;
Subcutaneous Tissue
5.A Case of Primary Hypomagnesemia.
Kyoung A CHUN ; Sung Pil JANG ; Young Dae HAM ; Jin Hwa JEONG ; Jeong Ho LEE
Journal of the Korean Pediatric Society 2000;43(8):1153-1156
Primary hypomagnesemia is a rare inherited disorder and it is considered to be due to either a defect in the intestinal transport of magnesium or a defect in renal tubular transport. It is important to measure the urinary excretion of magnesium to differentiate the causes of magnesium deficiency. We report here an one-month-old female infant of primary hypomagnesemia who presented generalized tonic-clonic seizures. She had hypomagnesemia(<1.5mg/dL) and several seizure attacks but normal magnesium creatinine ratio in random urine and normal magnesium excretion in 24-hour urine. Continuous oral magnesium supplementation was necessary to avoid the recurrence of symptoms and maintain serum rnagnesium levels.
Creatinine
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Female
;
Humans
;
Infant
;
Magnesium
;
Magnesium Deficiency
;
Recurrence
;
Seizures
6.A Case of Extrapelvic Endometriosis with Abdominal Pain in a 13-Year-Old Girl.
Sung Pill JANG ; Yong Dae HAM ; Jin Hwa JUNG ; Jeong Ho LEE
Journal of the Korean Pediatric Society 1999;42(10):1467-1470
Endometriosis is defined as the presence of endometrial tissue, e.g. gland and stroma, outside the uterus. Extrapelvic endometriosis is a rare condition but it occurrs in the gastrointestinal tract, kidney, pancreas, umbilicus, perianal area, abdominal scar tissue, lung or central nervous system except spleen. We have experienced a case of extrapelvic endometriosis in an adolescent girl, who complained of severe left upper quadrant abdominal pain and vomiting. The lesion was diagnosed by abdominal ultrasonography and computerized tomography, and confirmed histologically by exploratory laparotomy and mass excision biopsy. During menstration after surgery, she had no complaint of abdominal pain nor dysmenorrhea. We report this case with a review of associated literature.
Abdominal Pain*
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Adolescent*
;
Biopsy
;
Central Nervous System
;
Cicatrix
;
Dysmenorrhea
;
Endometriosis*
;
Female
;
Female*
;
Gastrointestinal Tract
;
Humans
;
Kidney
;
Laparotomy
;
Lung
;
Pancreas
;
Spleen
;
Ultrasonography
;
Umbilicus
;
Uterus
;
Vomiting
7.Infection Control Activity in Hallym University Medical Center.
Hyun Sook KOO ; Seung Ju KIM ; Hye Ryeung LEE ; Mi Hwa JANG ; Sung Soon HAN ; Heung Jeong WOO
Korean Journal of Nosocomial Infection Control 2001;6(2):117-124
No Abstract available.
Academic Medical Centers*
;
Infection Control*
8.Appropriate Adjustment according to the Supply and Demand Status and Trend of Doctors
Yun Hwa JUNG ; Ye-Seul JANG ; Hyunkyu KIM ; Eun-Cheol PARK ; Sung-In JANG
Health Policy and Management 2023;33(4):457-478
Background:
This study aims to contribute to the adjustment of the appropriate doctor manpower by analyzing the distribution, supply and demand, and estimation of the doctor manpower.
Methods:
This study utilized the medical personnel data of the Ministry of Health and Welfare, population trend data of the National Statistical Office, and health insurance benefit performance data of the National Health Insurance Service. Based on 2021, we compared the number of doctors in actual supply and the number of doctors in demand according to the amount of medical use by gender and age for 250 regions. Logistic regression analysis and scenario analysis were performed to estimate the future medical workforce by considering the demand for doctors according to the future demographic structure, the size of the quota in medical schools, and the retirement rate.
Results:
There were 186 regions in which the supply of doctors was below average, and the average ratio of the number of doctors in supply to demand in the region was 62.1%.
Conclusion
In order to increase the number of active doctors nationwide to at least 80%, 7,756 people must be allocated. The number of doctors in demand is estimated to decrease after increasing to 1.492 times in 2059. The future projected number of doctors is expected to increase to 1.349 times in 2050 and then decrease taking into account the doctor quota and the retirement rate.
9.A Trainable Hearing Aid Algorithm Reflecting Individual Preferences for Degree of Noise-Suppression, Input Sound Level, and Listening Situation.
Sung Hoon YOON ; Kyoung Won NAM ; Sunhyun YOOK ; Baek Hwan CHO ; Dong Pyo JANG ; Sung Hwa HONG ; In Young KIM
Clinical and Experimental Otorhinolaryngology 2017;10(1):56-65
OBJECTIVES: In an effort to improve hearing aid users’ satisfaction, recent studies on trainable hearing aids have attempted to implement one or two environmental factors into training. However, it would be more beneficial to train the device based on the owner’s personal preferences in a more expanded environmental acoustic conditions. Our study aimed at developing a trainable hearing aid algorithm that can reflect the user’s individual preferences in a more extensive environmental acoustic conditions (ambient sound level, listening situation, and degree of noise suppression) and evaluated the perceptual benefit of the proposed algorithm. METHODS: Ten normal hearing subjects participated in this study. Each subjects trained the algorithm to their personal preference and the trained data was used to record test sounds in three different settings to be utilized to evaluate the perceptual benefit of the proposed algorithm by performing the Comparison Mean Opinion Score test. RESULTS: Statistical analysis revealed that of the 10 subjects, four showed significant differences in amplification constant settings between the noise-only and speech-in-noise situation (P<0.05) and one subject also showed significant difference between the speech-only and speech-in-noise situation (P<0.05). Additionally, every subject preferred different β settings for beamforming in all different input sound levels. CONCLUSION: The positive findings from this study suggested that the proposed algorithm has potential to improve hearing aid users’ personal satisfaction under various ambient situations.
Acoustics
;
Classification
;
Hearing Aids*
;
Hearing*
;
Humans
;
Noise
;
Patient Preference
;
Personal Satisfaction
;
Signal Processing, Computer-Assisted
10.Changes of CA1 Excitability in Rats after Prenatal Methylazoxymethanol Treatment.
Sung Young JANG ; In Sun CHOI ; Jin Hwa CHO ; Il Sung JANG ; Maan Gee LEE ; Byung Ju CHOI
The Korean Journal of Physiology and Pharmacology 2006;10(1):13-17
Experimentally induced cortical disorganization exhibits many anatomical features which are characteristic of cortical malformations in children with early-onset epilepsy. We used an immunocytochemical technique and extracellular field potential recordings from the dorsal hippocampus to determine whether the excitability of the CA1 pyramidal cells was enhanced in rats with experimentally induced hippocampal dysplasia. Compared with control rats, the MAM-treated rats displayed a decrease of paired pulse inhibition. When GABAA receptor antagonists were blocked with 10microM bicuculline, the amplitude of the second population spike of the MAM-treated of rats was similar to that of the first population spike, as was in the control rats. The MAM-treated rats had fewer somatostatin and parvalbumin-immunoreactive neurons than the control rats. These results suggest that the enhanced neuronal responsiveness of the in vivo recording of the CA1 in this animal model may involve a reduction of CA1 inhibition.
Animals
;
Bicuculline
;
Child
;
Epilepsy
;
Hippocampus
;
Humans
;
Models, Animal
;
Neurons
;
Pyramidal Cells
;
Rats*
;
Somatostatin