1.Clinical and Radiological Features of Diffuse Lacrimal Gland Enlargement: Comparisons among Various Etiologies in 91 Biopsy-Confirmed Patients
Sae Rom CHUNG ; Gye Jung KIM ; Young Jun CHOI ; Kyung-Ja CHO ; Chong Hyun SUH ; Soo Chin KIM ; Jung Hwan BAEK ; Jeong Hyun LEE ; Min Kyu YANG ; Ho-Seok SA
Korean Journal of Radiology 2022;23(10):976-985
Objective:
To compare the clinical and radiological features of various etiologies of chronic diffuse lacrimal gland enlargement.
Materials and Methods:
We retrospectively reviewed 91 consecutive patients who underwent surgical biopsy for chronic diffuse lacrimal gland enlargement and were diagnosed with non-specific dacryoadenitis (DA) (n = 42), immunoglobulin G4-related dacryoadenitis (IgG4-RD) (n = 33), and lymphoma (n = 16). Data on patient demographics, clinical presentation, and CT imaging findings (n = 73) and MRI (n = 43) were collected. The following radiologic features of lacrimal gland enlargement were evaluated: size, unilaterality, wedge sign, angle with the orbital wall, heterogeneity, signal intensity, degree of enhancement, patterns of dynamic contrast-enhanced, and apparent diffusion coefficient value. Radiological features outside the lacrimal glands, such as extra-lacrimal orbital involvement and extra-orbital head and neck involvement, were also evaluated. The clinical and radiological findings were compared among the three diseases.
Results:
Compared to the DA and IgG4-RD groups, the lymphoma group was significantly older (mean 59.9 vs. 46.0 and 49.4 years, respectively; p = 0.001) and had a higher frequency of unilateral involvement (62.5% vs. 31.0% and 15.2%, respectively;p = 0.004). Compared to the IgG4-RD and lymphoma groups, the DA group had significantly smaller lacrimal glands (2.3 vs. 2.8 and 3.3 cm, respectively; p < 0.001) and a lower proportion of cases with a wedge sign (54.8% vs. 84.8% and 87.5%, respectively; p = 0.005). The IgG4-RD group showed more frequent involvement of the extra-orbital head and neck structures, including the infraorbital nerve (36.4%), paranasal sinus (72.7%), and salivary gland (58.6%) compared to the DA and lymphoma groups (4.8%–28.6%) (all p < 0.005).
Conclusion
Patient age, unilaterality, lacrimal gland size, wedge sign, and extra-orbital head and neck involvement differed significantly different between lymphoma, DA, and IgG4-RD. Our results will be useful for the differential diagnosis and proper management of chronic lacrimal gland enlargement.
2.Omental Incarceration over Twenty Years Presenting as a Hyperechoic Endometrial Mass in a Postmenopausal Woman
Gina NAM ; Sa Ra LEE ; Yu Ra KO ; Gwang Jun KIM
Journal of Menopausal Medicine 2021;27(1):46-48
Uterine perforation related with dilatation and curettage (D&C) is an uncommon event. Combined complications such as hemorrhage, adjacent organ injury, and omental incarceration may require an emergent surgical treatment. These are usually evident immediately or several days after the D&C, and a delayed presentation of uterine perforation are extremely rare. Herein, we report a rare case of omental incarceration presenting as a hyperechoic endometrial mass in a postmenopausal woman, diagnosed twenty-three years after the D&C. According to this case, when we encounter a hyperechoic endometrial lesion penetrating the uterine wall in women with a history of an intrauterine procedure such as D&C, we need to consider the possibility of an incarcerated omentum.
3.Omental Incarceration over Twenty Years Presenting as a Hyperechoic Endometrial Mass in a Postmenopausal Woman
Gina NAM ; Sa Ra LEE ; Yu Ra KO ; Gwang Jun KIM
Journal of Menopausal Medicine 2021;27(1):46-48
Uterine perforation related with dilatation and curettage (D&C) is an uncommon event. Combined complications such as hemorrhage, adjacent organ injury, and omental incarceration may require an emergent surgical treatment. These are usually evident immediately or several days after the D&C, and a delayed presentation of uterine perforation are extremely rare. Herein, we report a rare case of omental incarceration presenting as a hyperechoic endometrial mass in a postmenopausal woman, diagnosed twenty-three years after the D&C. According to this case, when we encounter a hyperechoic endometrial lesion penetrating the uterine wall in women with a history of an intrauterine procedure such as D&C, we need to consider the possibility of an incarcerated omentum.
4.Clinical Targeted Next-Generation sequencing Panels for Detection of Somatic Variants in Gliomas
Hyemi SHIN ; Jason K. SA ; Joon Seol BAE ; Harim KOO ; Seonwhee JIN ; Hee Jin CHO ; Seung Won CHOI ; Jong Min KYOUNG ; Ja Yeon KIM ; Yun Jee SEO ; Je-Gun JOUNG ; Nayoung K. D. KIM ; Dae-Soon SON ; Jongsuk CHUNG ; Taeseob LEE ; Doo-Sik KONG ; Jung Won CHOI ; Ho Jun SEOL ; Jung-Il LEE ; Yeon-Lim SUH ; Woong-Yang PARK ; Do-Hyun NAM
Cancer Research and Treatment 2020;52(1):41-50
Purpose:
Targeted next-generation sequencing (NGS) panels for solid tumors have been useful in clinical framework for accurate tumor diagnosis and identifying essential molecular aberrations. However, most cancer panels have been designed to address a wide spectrum of pan-cancer models, lacking integral prognostic markers that are highly specific to gliomas.
Materials and Methods:
To address such challenges, we have developed a glioma-specific NGS panel, termed “GliomaSCAN,” that is capable of capturing single nucleotide variations and insertion/deletion, copy number variation, and selected promoter mutations and structural variations that cover a subset of intron regions in 232 essential glioma-associated genes. We confirmed clinical concordance rate using pairwise comparison of the identified variants from whole exome sequencing (WES), immunohistochemical analysis, and fluorescence in situ hybridization.
Results:
Our panel demonstrated high sensitivity in detecting potential genomic variants that were present in the standard materials. To ensure the accuracy of our targeted sequencing panel, we compared our targeted panel to WES. The comparison results demonstrated a high correlation. Furthermore, we evaluated clinical utility of our panel in 46 glioma patients to assess the detection capacity of potential actionable mutations. Thirty-two patients harbored at least one recurrent somatic mutation in clinically actionable gene.
Conclusion
We have established a glioma-specific cancer panel. GliomaSCAN highly excelled in capturing somatic variations in terms of both sensitivity and specificity and provided potential clinical implication in facilitating genome-based clinical trials. Our results could provide conceptual advance towards improving the response of genomically guided molecularly targeted therapy in glioma patients.
5.Giant Brain Abscess in a Neonate: Good Outcome with Single Transfontanelle Aspiration and Antibiotic Therapy.
Jin Hee KO ; Yu Mi CHOI ; Kye Shik SHIM ; Chong Woo BAE ; Sa Jun CHUNG ; Jae Seung BANG ; Kyung Lim YOON
Journal of the Korean Society of Neonatology 2011;18(2):399-403
Brain abscesses in neonates are extremely rare and usually occur in patients with certain risk factors. A 1-month-old boy presented at the hospital with fever and irritability. As a result of preterm delivery and low birth weight, he had a history of admission to the neonatal intensive care unit. Neuroimaging revealed a large, space-occupying lesion in both frontal lobes, which was suspected to be an abscess with the midline shifting to the right. With a single aspiration and abscess drainage along with concurrent prolonged parenteral antibiotic therapy, the patient showed an excellent treatment outcome with normal development. The focus will be placed on minimally invasive surgical management as well as positive outcomes.
Abscess
;
Bacterial Infections
;
Biopsy, Fine-Needle
;
Brain
;
Brain Abscess
;
Drainage
;
Enterobacter cloacae
;
Fever
;
Frontal Lobe
;
Humans
;
Infant
;
Infant, Low Birth Weight
;
Infant, Newborn
;
Intensive Care, Neonatal
;
Neuroimaging
;
Risk Factors
;
Treatment Outcome
6.Four Children with Multidrug-resistant Acinetobactor baumanii Infections in the Intensive Care Units of a University Hospital.
Kyung Suk LEE ; Gyu Min LEE ; Hoi Soo YOON ; Sa Jun CHUNG ; Sung Ho CHA ; Hee Kyung CHUN
Korean Journal of Pediatric Infectious Diseases 2011;18(1):97-102
The Multidrug-resistant Acinetobactor baumanii (MDRAB) is an opportunistic pathogen. Patients with long periods of hospital stay and/or under intensive care unit (ICU) receiving invasive management are more susceptible to this pathogen. In this report, four children with MDRAB infection are reviewed and described their clinical characteristics. There had been concurrent outbreaks of MDRAB infection in adult patients in the ICU at this period of time. The first child had received a craniotomy and epidural hematoma evacuation. The second child was admitted for status epilepticus with hydrocephalus. The third child had pneumonia with status epilepticus with hydrocephalus. The fourth child had poor activity due to hypoxic ischemic encephalopathy and convulsive disorder. Except the fourth child, all had not been exposed to carbapenem prior to infection of MDRAB. That imply the cause of MDRAB infections may be associated with invasive management and prolonged hospitalization together with the previous exposure to carbapenem in our cases. We would like to emphasize the importance and minimizing the spread of hospital infection in patients under prolonged intensive care management regardless of the use of carbapenem.
Adult
;
Child
;
Craniotomy
;
Cross Infection
;
Disease Outbreaks
;
Hematoma
;
Hospitalization
;
Humans
;
Hydrocephalus
;
Hypoxia-Ischemia, Brain
;
Critical Care
;
Intensive Care Units
;
Length of Stay
;
Pneumonia
;
Status Epilepticus
7.Age and Dosage-related Longitudinal Changes in Body Mass Index on Epileptic Children Treated with Topiramate.
Young Lan KWEON ; Kang Hoon SONG ; Sa Jun CHUNG
Journal of the Korean Child Neurology Society 2010;18(1):14-19
PURPOSE: The objective of this prospective study is to assess changes in body mass index(BMI, weight in kilograms/height in meters2) according to age and dosage on epileptic children treated with topiramate. METHODS: From January 2006 to December 2008, prospective studies have been performed on 63 children with epilepsy aged below 15 old who had been treated with topiramate. Patients were classified into 3 groups according to age: 2-5 years as a group 1; 6-10 years as a group 2; 11-15 years as a group 3;, and classified into 2 groups according to dosage: from 2 to 5 mg/kg/day as group A, more than 5 mg/kg/day to 8 mg/kg/day as group B. We have checked BMI of patients four times and evaluated the changes in BMI of each group. RESULTS: BMI at initial presentation and follow-up periods of 6, 12, and 24 months is as follows: 16.3+/-1.25, 14.3+/-1.8, 14.2+/-2.4, and 15.7+/-2.1 in the group 1, 18.5+/-1.23, 15.2+/-1.24, 14.8+/-2.27, and 16.8+/-2.5 in the group 2, 21.6+/-2.31, 16.5+/-2.17, 15.4+/-2.56, and 15.1+/-1.3 in the group 3. Comparing with group A and B is as follows: 19.3+/-2.35 and 18.1+/-1.89 at initial presentation, 15.5+/-2.45 and 15.1+/-1.15 at 6 months, 14.9+/-2.15 and 14.7+/-1.91 at 12 months, 15.9+/-1.28 and 16.0+/-1.12 at 24 months. CONCLUSION: The effect of topiramate on changes of BMI shows difference according to age. In groups of 2-10 years old, BMI was rebounded from lowest value after 12 months, however, in the group of 11-15 years old, BMI kept decreasing at 24 months. And dosage of topiramate does not affect to BMI significantly.
Aged
;
Body Mass Index
;
Child
;
Epilepsy
;
Follow-Up Studies
;
Fructose
;
Humans
;
Prospective Studies
8.The age and dose-related hyponatremia during carbamazepine and oxcarbazepine therapy in epileptic children.
Kyu Ha LEE ; Jun Hyuk SONG ; Sung Ho CHA ; Sa Jun CHUNG
Korean Journal of Pediatrics 2008;51(4):409-414
PURPOSE: To assess the prevalence of hyponatremia in epileptic children receiving carbamazepine or oxcarbazpine, we investigate serum sodium changes according to age, serum carbamazepine level, and daily oxcarbazepine dosage, and the prevalence of symptoms of hyponatremia. METHODS: We reviewed the clinical data of the 197 children receiving carbamazepine and/or oxcarbazepine with or without antiepileptic therapy. And these were classified into the carbamazepine treated patients (group I), oxcarbazepine treated patients (group II), and carbamzepine or oxcarbazepine with other antiepileptics treated patients (group III). Potentially predictive values for development of hyponatremia were examined in each group: age, plasma level of carbamazepine and daily dosage of oxcarbazepine. We assessed the symptoms of hyponatremia. RESULTS: The overall prevalence of hyponatremia was 20.8% (group I, II and III: 17.9%, 22.6%, and 21.8%, respectively), and the prevalence in groups II and III compared with controls (P<0.03) was significantly lower. The changes of serum sodium levels relation to age were not significantly different. The changes of serum sodium levels by increasing of serum levels of carbamazepine and dosage of oxcarbazepine were statistically significant (P<0.01). Among the 41 patients who had biochemical hyponatremia, the prevalence of hyponatremic symptoms was 17.1%. CONCLUSION: Hyponatremia may occur relatively more frequently with oxcarbazepine or combined other antiepileptics than carbamzepine therapy only. Age of children receiving carbamazepine or oxcarbazepine was no predictive value for occurrence of hyponatremia. The patients whose serum level were less than 125 mEq/L showed more severe clinical symptoms than any other study groups.
Anticonvulsants
;
Carbamazepine
;
Child
;
Epilepsy
;
Humans
;
Hyponatremia
;
Plasma
;
Prevalence
;
Sodium
9.A Case of Multiple Cardiac Myxomas Complicating Recurrent Right Hemiparesis in a Child who had a Wrong Diagnosis of Acute Disseminated Encephalomyelitis.
Han Seok KO ; Hye Sun YOON ; Mi Young HAN ; Soo Cheol KIM ; Sa Jun CHUNG
Journal of the Korean Pediatric Cardiology Society 2007;11(2):142-147
Multiple cardiac myxomas are rare in children. However, myxomas may be lethal because of their various manifestations such as blood flow obstruction, embolization and constitutional changes. Especially, the cerebral infarction due to tumor fragmentation are more likely to be misdiagnosed of acute disseminated encephalomyelitis. We report a case of multiple cardiac myxoma complicating recurrent right hemiparesis in a 12-year-old child who at first had a wrong diagnosis of acute disseminated encephalomyelitis (ADEM). Consequently, a child who show unrepresentative symptom of ADEM, should be examined rapidly by various tools to rule out the cerebral infarction from cardiogenic cause.
Cerebral Infarction
;
Child*
;
Diagnosis*
;
Encephalomyelitis, Acute Disseminated*
;
Humans
;
Myxoma*
;
Paresis*
10.Surgical removal of a left ventricular thrombus caused by acute myocarditis.
Kyu Ha LEE ; Min Jung YOON ; Mi Young HAN ; Sa Jun CHUNG ; Soo Cheol KIM
Korean Journal of Pediatrics 2007;50(6):588-591
Left ventricular thrombus is mainly caused by anterior myocardial infarction or severe cardiac wall dysfunction of the apex, and is rarely caused by a complication of acute myocarditis. A 12-year-old female who developed symptoms of motor dysphasia and incomplete hemiparesis of the right side was admitted to the hospital. The brain MRI taken on the day of her admission showed acute cerebral infarction in the left basal ganglia and the frontoparietal lobe. The echocardiogram showed a movable thrombus, which was 19x28 mm sized and located in the apex of the left ventricle. So in order to prevent further thromboembolic event we performed open cardiac surgery via the atrium and removed the thrombus of the left ventricle. After the removal of the thrombus her symptoms improved and she was discharged from the hospital. Thrombus formation in acute viral myocarditis are considered to be related with endocardial injury and blood flow stasis. Treatment with anticoagulants in left ventricular thrombosis may not be effective and may even cause a major thromboembolism. When the thrombus is laminar and fixed, one should consider anticoagulant therapy. But if the thrombus is pedunculated and movable, which means that there are higher possibilities of major embolism or there may be already one, one should consider surgical removal. We report a 12-year-old girl who required surgical removal of a left ventricular thrombus caused by acute viral myocarditis.
Anticoagulants
;
Aphasia
;
Basal Ganglia
;
Brain
;
Cerebral Infarction
;
Child
;
Embolism
;
Female
;
Heart Ventricles
;
Humans
;
Magnetic Resonance Imaging
;
Myocardial Infarction
;
Myocarditis*
;
Paresis
;
Thoracic Surgery
;
Thromboembolism
;
Thrombosis*

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