1.Sexual Precocity:Sex Incidence and Etiology.
Ki Hun SONG ; Moon Young SONG ; Byung Kyu SUH ; Byung Churl LEE
Journal of Korean Society of Pediatric Endocrinology 1997;2(2):226-232
PURPOSE:Differential diagnosis of sexual precocity has been aided by new imaging techniques and endocrine evaluation. Sexual precocity, defined as the appearance of secondary sexual characteristics before the age of 8 years in girls and 9 years in boys, was studied to evaluate the sex incidence and etiology of sexual precocity. METHODS:A total 95 children(87 girls and 8 boys) who were diagnosed with sexual precocity at St. Mary's Hospital, Catholic University Medical College from 1984 to 1996, were studied. All underwent standard anthropometric measures. They were assinged to diagnostic categories on the basis of clinical assessment, endocrine evaluation, radiologic imaging, and pelvic ultrasonography. RESULTS: 1) The most common cause of sexual precocity was premature thelarche, 50 cases(52.6%) of all children. 2) Central precocious puberty was noted in 7 girls and 3 boys(female to male ratio 2.3:1). The causes were not identified in 6 cases(85.7%) in girls, but the causes were not found in 1 cases(33.3%) in boys. The idiopathic central precocious puberty occurs at least two fold more frequently in girls than in boys. 3) Incomplete precocious puberty was noted in 29 girls and 5 boys(female to male ratio 5.8:1). In the causes of 29 girls with incomplete precocious puberty, congenital adrenal hyperplasia were found in 23 cases, autonomous functional ovarian cyst in 5 cases and McCune-Albright syndrome in 1 case. In the causes of 5 boys with incomplete precocious puberty, virilizing adrenal cortical tumor were found in 3 cases, congenital adrenal hyperplasia in 1 case, and hepatoblastoma in 1 case. CONCLUSION: Sexual precocity occurs at least ten fold more frequently in girls than in boys. Premature thelarche is the most common form of sexual precocity.
Adrenal Hyperplasia, Congenital
;
Child
;
Diagnosis
;
Female
;
Fibrous Dysplasia, Polyostotic
;
Hepatoblastoma
;
Humans
;
Incidence*
;
Male
;
Ovarian Cysts
;
Puberty, Precocious
;
Ultrasonography
2.A Clinical Study on Factors affecting Spontaneous Resolution of Vesicoureteral Reflux in Children.
Byung Ho SONG ; Chang Weon OH ; Ki bok KIM
Journal of the Korean Society of Pediatric Nephrology 1998;2(2):152-160
We report a case of 53-year-old man with plasmacytoid transitional cell carcinoma of the urinary bladder, which may be confused with plasmacytoma. The patient initially presented with gross hematuria and dysuria for two months. Cystoscopy and radiologic studies revealed multiple intraluminal protruding masses on the urinary bladder invading perivesical fat tissue. After urinary cytologic examination and cystoscopic biopsy, radical cystectomy and pelvic lymph node dissections were done. Urine cytology showed single cells and poorly cohesive cells with round eccentric nuclei, bi-or multi-nucleation, indistinct nucleoli, coarse chromatin, and abundant basophilic cytoplasm within relatively clear background. The cytologic findings of tumor cells were similar to the plasma cells seen in plasmacytoma. The tumor of the bladder was composed of discohesive, individual cancer cells with diffuse pattern that simulated lymphoma or plasmacytoma. Immunohistochemical and electron microscopic studies clearly established the epithelial nature of the neoplasm. Recognition of this plasmacytoid type of transitional cell carcinoma of the urinary bladder can avoid the misdiagnosis.
Child
;
Male
;
Female
;
Humans
;
Biopsy
3.Total anomalous pulmonary venous connection: 1 case report.
Woo Chul SONG ; Byung Joo KIM ; Ki Woo HONG
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(12):1465-1470
No abstract available.
4.Two Cases of Thyroid Tumor after Radiation Therapy of Primary Malignancy.
Moon Young SONG ; Byung Kyu SUH ; Hack Ki KIM ; Byung Churl LEE
Journal of Korean Society of Pediatric Endocrinology 1998;3(2):256-259
The thyroid gland is highly sensitive to the carcinogenic effects of ionizing radiation. The development of benign thyroid nodules, thyroid carcinoma and thyroid dysfunction following radiotherapy during childhood has been documented. Recently we experienced two cases of thyroid tumor after irradiation. One is a 14-year-old boy with thyroid follicular carcinoma who had received mantle irradiation(3,000cGy) eight years previously for Hodgkin' disease. The other is a 15-year- old boy with thyroid follicular adenoma who had received craniospinal irradiation (3,600cGy) seven years previously for CNS relapse of acute lymphoblastic leukemia. We recommend frequent sonographic evaluation and early suppression of thyroid stimulation in an attempt to arrest the development of neoplastic changes in long term survivors of childhood malignancies who received radiation therapy.
Adenoma
;
Adolescent
;
Craniospinal Irradiation
;
Humans
;
Male
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
Radiation, Ionizing
;
Radiotherapy
;
Recurrence
;
Survivors
;
Thyroid Gland*
;
Thyroid Neoplasms
;
Thyroid Nodule
;
Ultrasonography
6.Change of Serum IGF-I and IGFBP-3 Concentration During Induction Chemotherapy in Children with Acute Lymphocytic Leukemia.
Jee Yeon SONG ; Bin CHO ; Hak Ki KIM ; Byung Churl LEE
Journal of Korean Society of Pediatric Endocrinology 1997;2(1):53-59
PURPOSE:The most important regulatory factor for IGF-I and IGFBP-3 known so far GH and food intake. Poor nutrition in children with acute lymphocytic leukemia(ALL) increase morbidity during treatment. The aim of this study was to assess the changes of serum IGF-I and IGFBP-3 concentration during induction chemotherapy in 13 children with acute lymphocytic leukemia. METHODS:13 children aged between 1.6 and 13.5 years with ALL were studied the changes of serum IGF-I and IGFBP-3 concentration before, at 2 and 4 weeks after induction chemotherapy. Serum IGF-I and IGFBP-3 were measured using radioimmunoassay. Results : 1) Mean serum IGF-I and IGFBP-3 concentration before induction chemotherapy in ALL patient was significantly lower than the those of normal control(p<0.05). 2) Mean serum IGF-I and IGFBP-3 concentration at 2 weeks of induction chemotherapy were significantly higher than the those of the basal levels (p<0.05). 3) Mean serum IGF-I and IGFBP-3 concentration at 4 weeks after induction chemotherapy were significantly higher than the those of the basal levels (p<0.05). Conclusion : Concentration of serum IGF-I and IGFBP-3 in patients with ALL were significantly increased during induction chemotherapy. These results are probably related to improvement of nutritional status following induction chemotherapy.
Child*
;
Eating
;
Humans
;
Induction Chemotherapy*
;
Insulin-Like Growth Factor Binding Protein 3*
;
Insulin-Like Growth Factor I*
;
Nutritional Status
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma*
;
Radioimmunoassay
7.The efficacy of GnRH(gonadotropin releasing hormone) and TRH(thyrotropin releasing hormone) stimulation test in amenorrhea.
Chan Ho SONG ; Bo Yon LEE ; Byung Seok LEE ; Ki Hyun PARK ; Dong Jae CHO
Korean Journal of Obstetrics and Gynecology 1991;34(12):1677-1690
No abstract available.
Amenorrhea*
;
Female
8.Effect of endogenous estrogen on calcium metabolism during ovulation induction.
Dal Young YOON ; Ki Hyun PARK ; Byung Seok LEE ; Bo Yeon LEE ; Chan Ho SONG
Korean Journal of Fertility and Sterility 1991;18(2):197-199
No abstract available.
Calcium*
;
Estrogens*
;
Female
;
Metabolism*
;
Ovulation Induction*
;
Ovulation*
10.A Practical Definition of Epilepsy.
Dong Jin SHIN ; Byung In LEE ; Hong Ki SONG
Journal of the Korean Neurological Association 2016;34(3):176-183
In 2005, the ILAE conceptually defined epilepsy as a disorder of the brain, characterized by an enduring predisposition to generate epileptic seizures and by its psychosocial consequences. In clinical practice, this definition of epilepsy is usually taken to mean at least two unprovoked seizures more than 24 h apart. The operational definition for special circumstances that do not meet the criteria of two unprovoked attacks has been recommended. In 2014, the ILAE refined the practical definition of epilepsy. With this definition, epilepsy is a disease of the brain with either: (1) at least two unprovoked (or reflex) seizures occurring more than 24 h apart; (2) one unprovoked (or reflex) seizure and a probability of further seizures similar to the general recurrence risk (at least 60%) after two unprovoked seizures, occurring over the next 10 years; (3) diagnosis of an epilepsy syndrome. Epilepsy is considered to be resolved for individuals past the applicable age of an age-dependent epilepsy syndrome or those who have remained seizure-free for the past 10 years, without seizure medicines for the past 5 years.
Brain
;
Diagnosis
;
Epilepsy*
;
Recurrence
;
Seizures