PURPOSE:Craniopharyngioma is one of the most important intracranial tumors in pediatric age which causes multiple pituitary hormone deficiencies. We have studied clinical characteristics in patients with craniopharyngioma, focusing on changes of endocrine function, change of growth pattern, and change of body mass index before and after surgery. In addition, we wanted to know the effect of growth hormone therapy on growth velocity and body mass index, and to identify contributing factors for spontaneous growth in spite of growth hormone deficiency. METHODS:A total number of 17 patients who were diagnosed as having craniopharyngioma at the Department of Pediatrics, Asan Medical Center during the period of January, 1991 to December, 1997 were included in this study. Retrospectively, we reviwed medical records as to their endocrine function tests and auxoloogical data before, after surgery. RESULTS: 1)The number of patients of male and female were 9 and 8 respectively. Mean age was 7.3+/-4.3 years. 2)Preoperatively, 3 patients were thyroid hormone deficient, 3 patients were corticosteroid deficient, and 3 patients suffered from diabetes inspidus. 3)Postoperatively, GH and TSH deficiency were found in 100%, ACTH in 88.2%, ADH in 82.3%, and LH/FSH in 60%, 53% respectively. 4) Mean growth velocity in 14 GH deficient patients without growth hormone treatment for 2 years were 3.5+/-2.4cm/year during the 1st year and 3.1+/-1.7cm/year during the 2nd year. Although height standard deviation score(Ht. SDS) was decreasing trend as -0.24+/-2.19 at diagnosis, -0.94+/-1.73 at 1 year later, and -0.76+/-1.76 at 2 years later, it was not statistically significant. To our suprise, 4 out of 14 patients achieved greater growth velocity than nomal in spite of growth hormone deficiency during the 1st year after operation. 5) Although the mean body mass index of 14 GH deficient patients without GH treatment was increasing trend as 17.9+/-3.5 at diagnosis, 19.0+/-4.5 at 1 year later, and 19.9+/-4.8 at 2 year later, it was not statistically significant. 6) The mean Ht. SDS increased significantly in 7 patients treated with growth hormone(P<0.05) for 2 years, but change of body mass index was not significant. 7) Comparision of postoperative serum prolactin levels and changes of body mass index between spontaneous growth and stunted growth group did not reveal significant difference. CONCLUSION: Since most patients with craniopharyngioma become multiple pituitary hormone deficient after operation, it is important to predict and detect pituitary dysfunction to manage it effectively. Although patients with postoperative GH deficiency responded well to GH treatment, further study is needed to clarify what are the main contributing or prognostic factors for spontaneous growth without growth hormone treatment.
Adrenocorticotropic Hormone ; Body Mass Index ; Chungcheongnam-do ; Craniopharyngioma* ; Diagnosis ; Female ; Growth Hormone ; Humans ; Male ; Medical Records ; Obesity ; Pediatrics ; Prolactin ; Retrospective Studies ; Thyroid Gland

Purpose : As the recombinant human growth hormone has been widely available, a lots of parents having short statured children are interested in promoting growth of them whatever the etiologies of short stature they have. However, the growth hormone therapy for growth-promoting effect is only justified in well-established indications such as growth hormone deficiency, fumer syndrome, and chronic renal insufficiency. This study was undertaken to classify the children with chief complaint of short stature by its cause and giving the basic epidemiologic data for it so that the size of population in which growth hormone is indicated can be estimated. Methods : According to Ranke's etiologic classification, we categorized the 579 children who visited our pediatric endocrinology clinic with chief complaint of short stature during the period of March 1994 to August 1996. In this prospective study, history regarding growth was taken, physical examination and laboratory tests including bone age, thyroid function, blood chemistry were carried out. The auxological data were analyzed. Additional chromosomal study or growth hormone provocative tests were performed when needed. Results : Out of 579 patients, 360(62.2%) were classified as normal and 127(21.9%) were classified as normal variants which consist of familial [74(12.8%)], constitutional [48(8.5%)], and mixed familial & constitutional short stature[5(0.9%)]. Pathologic short stature was found in only 80(13.8%). Those are growth hormone deficiency(28), Tumer syndrome(16), intrauterine growth retardation(14) in order. Other etiologies list varieties of dysmorphism, skeletal dysplasia, chromosomal disorders. Conclusions : This results suggest the vast majority of children with chief complaint of short stature are normal or normal variants. Only 7.8% of children who visited our clinic were indicated for growth hormone therapy.
Chemistry ; Child* ; Chromosome Disorders ; Classification* ; Endocrinology ; Growth Hormone ; Human Growth Hormone ; Humans ; Parents ; Physical Examination ; Prospective Studies ; Renal Insufficiency, Chronic ; Thyroid Gland

PURPOSE:Although Hashimoto's thyroiditis is the most common cause of goiter in children and adolescents, it is not clear what proportion of patients become hypothyroid and which tests are the best predictors of this state. To determine whether these kinds of variations occur in the course of Hashimoto's thyroiditis and whether the size of the thyroid gland or immunologic markers correlate with the course or outcome of Hashimoto's thyroiditis are main objects of our study. METHODS:A total number of 48 patients who were diagnosed as having Hashimoto's thyroiditis at the Department of Pediatrics, Asan Medical Center during the period of January, 1992 to December, 1997 were included in this study. Retrospectively, we reviewed medical records as to their clinical and labaratory data. RESULTS:Thyroid function status at initial diagnosis of Hashimoto's thyroiditis were euthyroidism(33.3%), compensatory hypothyroidism(33.3%), overt hypothyroidism (27.1%), hyperthyroidism(8.3%) in order. Positivity of antithyroglobulin antibodies and antimicrosomal antibodies were 77.1% and 66.7% respectively. In 33 patients, 12(36.4 %) were on remission status after 3 years from initial diagnosis. Antithyroglobulin antibody titer was significantly decreased after 2-year follow up in remission group. Initial antithyroglobulin antibody titer and thyroid function status were not related to remission status after 3-year from diagnosis. CONCLUSION: About 36% of patients with Hashimoto's thyroiditis can be in remission after 3-year from diagnosis. Decrease of antithyroglobulin antibody titer is related to remission status. Further study is necessary to know what can be the predicting factors for early remission, for example, initial thyroid function status, initial antithyroid antibody titier, circulating immune complex, age, sex and size of thyroid.
Adolescent ; Antibodies ; Antigen-Antibody Complex ; Biomarkers ; Child ; Chungcheongnam-do ; Diagnosis ; Follow-Up Studies ; Goiter ; Humans ; Hypothyroidism ; Medical Records ; Pediatrics ; Retrospective Studies ; Thyroid Gland* ; Thyroiditis*

No abstract available.
Krukenberg Tumor*

In order to evaluate the ability of spin-echo MR imaging to differentiate slow flow from mural thrombus in aortic diseases, we reviewed the spin-echo MR images of 13 patients with intraaortic thrombus documented by CT (N=11) or aortography (N=2). Six patients had aortic aneurysms and seven had aortic dissection. Intraaortic mural thrombi were accompanied by flow-related intraluminal signal of various patterns and extents in all 13 patients. On 10 gated MR studies, slow flow regions showed even-echo rephasing phenomenon (N=8), interslice variation of signal intensities of the intraluminal signal (N=7) and flow-related ghost artifact (N=2). However, these MR flow phenomena were obscured on two of three non-gated studies. Seven of 13 intraaortic thrombi remained hyperintense on T2-weighted second-echo images. In these circumstances, a hypointense boundary layer between slow flow and mural thrombus, which was caused by either 'boundary layer dephasing phenomenon' of slow flow or 'paramagnetic T2 shortening' of fresh clot at the edge of mural thrombus, was useful in discriminating the area of slow flow from that of mural thrombus. Proper interpretation of spin-echo MR images may obviate the need for phase display imaging or gradientecho imaging in differentiating slow flow and mural thrombus.
Aortic Aneurysm ; Aortic Diseases* ; Aortography ; Artifacts ; Humans ; Magnetic Resonance Imaging ; Thrombosis*

In order to evaluate the ability of spin-echo MR imaging to differentiate slow flow from mural thrombus in aortic diseases, we reviewed the spin-echo MR images of 13 patients with intraaortic thrombus documented by CT (N=11) or aortography (N=2). Six patients had aortic aneurysms and seven had aortic dissection. Intraaortic mural thrombi were accompanied by flow-related intraluminal signal of various patterns and extents in all 13 patients. On 10 gated MR studies, slow flow regions showed even-echo rephasing phenomenon (N=8), interslice variation of signal intensities of the intraluminal signal (N=7) and flow-related ghost artifact (N=2). However, these MR flow phenomena were obscured on two of three non-gated studies. Seven of 13 intraaortic thrombi remained hyperintense on T2-weighted second-echo images. In these circumstances, a hypointense boundary layer between slow flow and mural thrombus, which was caused by either 'boundary layer dephasing phenomenon' of slow flow or 'paramagnetic T2 shortening' of fresh clot at the edge of mural thrombus, was useful in discriminating the area of slow flow from that of mural thrombus. Proper interpretation of spin-echo MR images may obviate the need for phase display imaging or gradientecho imaging in differentiating slow flow and mural thrombus.
Aortic Aneurysm ; Aortic Diseases* ; Aortography ; Artifacts ; Humans ; Magnetic Resonance Imaging ; Thrombosis*

The shortage of available organ donors is a significant problem and various efforts have been made to avoid the loss of organ donors. Among these, extracorporeal membrane oxygenation (ECMO) has been introduced to help support and manage potential donors. Many traumatic brain injury patients have healthy organs that might be eligible for donation for transplantation. However, the condition of a donor with a fatal brain injury may rapidly deteriorate prior to brain death determination; this frequently results in the loss of eligible donors. Here, we report the use of venoarterial ECMO to support a potential donor with a fatal brain injury before brain death determination, and thereby preserve donor organs. The patient successfully donated his liver and kidneys after brain death determination.
Brain Death* ; Brain Injuries* ; Brain* ; Extracorporeal Membrane Oxygenation* ; Humans ; Kidney ; Liver ; Tissue and Organ Procurement ; Tissue Donors*

OBJECTIVE: Our purpose was to investigate the relation between types of early diastolic notch and placental location and to evaluate the differences in perinatal outcomes. METHODS: We evaluated the Doppler waveform of the uterine artery in 149 pregnant women having an early diastolic notch after 26 weeks gestation, however we were unable to follow the obstetric outcomes in 20 women. Placental location was determined by transverse view of ultrasonography and classified as central and lateral placenta. The unilateral diastolic notches were divided into 3 groups depending on the placental location (ipsilateral: same side of the placenta, contralateral: opposite side of the placenta, and median: central placenta) RESULTS: In the bilateral notch group, the S/D ratio of the contralateral uterine artery was higher than the ipsilateral one(n=60, mean=3.22 Vs 2.80, p=0.0067). Of the 89 unilateral notches observed, the S/D ratio of the uterine artery in patients having early diastolic notch was higher compared to those without early diastolic notch.(t-test, mean=2.74,1.92, p=0.0001) Patients with bilateral notches were associated with poor perinatal outcomes significantly more than the patients with unilateral notches(p=0.003). Among the unilateral groups (ipsilateral: n=10, median: n=21, contralateral: n=58), there was no significant difference in perinatal outcomes. CONCLUSION: The early diastolic notch can be observed on both or either sides of the uterine artery independent on placental location. More bilateral notches were associated with poor pregnancy outcomes than unilateral notches. The pregnancy outcomes tended to be similar in unilateral notch irrespective of placental location, but showed worse outcomes than the control group. Careful analysis of the uterine artery in nonplacental side is necessary because of the frequent appearance of early diastolic notch and higher vascular resistance.
Female ; Humans ; Placenta ; Pregnancy ; Pregnancy Outcome ; Pregnant Women ; Rheology* ; Ultrasonography ; Uterine Artery* ; Vascular Resistance

PURPOSE: MRI is known to be an effective imaging modality of the aorta and its role is steadily increasing in the evaluation of acquired aortic diseases including aortic dissections and aortic aneurysms. However, differentiation of the aortic dissections with thrombosed false lumen from the aortic aneurysm with mural thrombus in MRI has not been easy. Therefore, the authors tried to find the characteristic MR featrses which would to differentiate the two diseases. MATERIALS AND METHODS: MR images of 6 patients with thrombosed aortic dissection and 7 patients with thrombosed aortic aneurysms were reviewed retrospectively and compared in regand to shape and extent of thrombus, dimension of aorta, and luminal flow signal. RESULTS: Thrombosed aortic dissections showed sharply demarcated crescent shaped aortic wall thickening of even thickness involving long segment of the aorta, whereas thrombosed aortic aneurysms showed irregular aortic wall thickening of uneven thickness localized in the short dilated segment of the aorta. Characteristically aortic aneurysm with mural thrombus showed eccentric intraluminal slow flow signal. In contrast to the signal void of the true lumen in aortic dissections, the residual lumen of the aortic aneurysm with mural thrombus revealed intraluminal signal due to slow flow. CONCLUSION: Familiarity to these MRI findings of thrombosed aortic dissections and aortic aneurysms may lead to the accurate differential diagnosis in majority of cases.
Aorta ; Aortic Aneurysm* ; Aortic Diseases ; Diagnosis, Differential* ; Humans ; Magnetic Resonance Imaging* ; Phenobarbital ; Recognition (Psychology) ; Retrospective Studies ; Thrombosis

We performed 70 proceudres of transarterial chemoembolization (TAE) through extrahepatic collateral vessels (n=27) or parasitic feeders (n=18) in 45 hepatocellular carcinoma patients. The collaterals developed after interruption of the hapatic artery due to repeated TAE(n=17), surgical ligation(n=7) and primary celiac occlusion (n=3). Radiologic findings suggesting the existence of parasitic or collateral supply for hepatocellular carcinoma were 1) a focal defect of Lipiodol retention on CT or plain film after TAE via the hepatic artery, 2) dilated and tortuous vessels around the mass on angiography, 3) persistent elevation of the level of serum alpha fetoprotein or continuous clinical symptoms in spite of sufficient devascularization of the tumor via the hepatic artery, and 4) radiological findings of direct invasion into adjacent organ. The sites of the catheter placement were the inferior phrenic artery (n=19), omental branches (n=16), periportal collaterals (n=6), pancreaticodenal arcade (n=3), gastroduodenal artery (n=3), internal mammary artery (n=2), intercostal artery (n=2), lateral thoracic artery (n=1), bronchial artery(n=1), and colic branches(n=1). Masses feeded by the inferior phrenic and chest wall collaterals were usually located at the dome area of the liver, and the omental and gastroduodenal collaterals developed in the masses located at the inferior tip of the liver. After TAE via collateral vessels, 37 patients underwent follow-up study. In 18 cases(48%), the tumor favorably responded to TAE. Specific complications of collateral TAE were epigastric soreness (n=10), severe shoulder pain (n=4), and embolization of the spinal artery during embolization through the intercostal artey (n=1). In conclusion, various extrahepatic collaterals are important alternative or additional routes for effective chemoembolization in patients with advanced hepatoma, and early recognition of the parasitic supply and the effort to perform TAE via collaterals is very important for effective management of the patients with the hepatoma.
alpha-Fetoproteins ; Angiography ; Arteries ; Carcinoma, Hepatocellular* ; Catheters ; Colic ; Ethiodized Oil ; Follow-Up Studies ; Hepatic Artery ; Humans ; Liver ; Mammary Arteries ; Shoulder Pain ; Thoracic Arteries ; Thoracic Wall