1.Radiologic manifwstations of pulmonary aspergilloma: special emphesis on atypical manifestation.
Jin Kyeung HAHM ; Kyu Ok CHOE ; Hyung Sik CHOI
Journal of the Korean Radiological Society 1992;28(2):197-204
Pulmonary aspergilloma may usually demonstrate the classic "air-crescent sign" in the conventional radiograph. However, this lesion is often seen as a pulmonary nodule or is obscured by the surrounding scarred and fibrotic lung tissue, which may limit the value of the conventional techniques and hinder the diagnosis. We retrospectively analysed the plan film findings of 44 lesions of 40 patients and CT findings of 29 lesions of 26 patients with pulmonary aspergilloma with special emphasis upon the atypical manifestation. The cases with classic "air-meniscus sign" in conventional radiograph accounted for 50%, while 30%, presented with a pulmonary nodule and 20% were unrecognized forms due to surrounding parenchymal lesion. CT findings of 28 aspergillomas were analyzed according to the shape of the intracavitary space(space between the cavity wall and the fungal ball) and the fungal ball itself. The intracavity space showed "air-meniscus sign" (62%), filling cavity (28%), peripheral air bubble (3%) and high density due to hemorrhage (3%), in descending order of frequency, The shape of the fungal ball itself showed homogeneous low density mass (62%) and spongeform or irregular air bubble contained mass (34%), CT was more accurate than conventional radiograph in the diagnosis and evaluation of number and location of atspergilloma, particularly in the case of atypical presentaion and was useful to assess the associated disease and to predict postoperative outcome.
Cicatrix
;
Diagnosis
;
Hemorrhage
;
Humans
;
Lung
;
Retrospective Studies
2.A Case of Polyagglutination due to T Activation.
Hyun Ok KIM ; Jin Ju KIM ; Sung Suk CHOI
Korean Journal of Blood Transfusion 1996;7(2):263-268
Red blood cells that agglutinate with most normal adult sera but never with own sera are termed polyagglutinable and can be separated by patterns of lectin reactivity into various types. Among these polyagglutination, activation of the T cryptantigen occurs when carbohydrate structures on glycophorins A and B lose sialic acid and express the disaccharide Gal beta-l-3 GalNac which reacts with the peanut agglutinin, a lectin from Arachis hypogaea. T activation is a temporary condition due to exposure of the membrane antigen to the action of microbial neuraminidase. In T activated red cells, the following hazards, which are theoretically possible, are spontaneous polyagglutination of red cells in vitro, in vivo and severe blood transfusion reactions. We experienced a case of T activation in 6 month old girl with bacterial meningitis caused by Streptococcus pneumoniae. The reactivity to lectins indicated the patient's red cells were T activated. We report a case of T activation in an infant with the review of literature.
Adult
;
Arachis
;
Blood Transfusion
;
Erythrocytes
;
Female
;
Glycophorin
;
Humans
;
Infant
;
Lectins
;
Membranes
;
Meningitis, Bacterial
;
N-Acetylneuraminic Acid
;
Neuraminidase
;
Peanut Agglutinin
;
Streptococcus pneumoniae
3.A Study on Satisfaction with Mental Health Services and Quality of Life among Patients with Schizophrenia in the Community Mental Health Center.
Hyun Mi KIM ; Jin Sook CHOI ; Mi Ok LEE
Korean Journal of Schizophrenia Research 2014;17(1):27-35
OBJECTIVES: The purpose of this study was to investigate client satisfaction with mental health services across sociodemographical and service utilization characteristics and to identify the predictors for quality of life for schizophrenic patients who registered in community mental health center. METHODS: One hundred five schizophrenic patients who had received intensive or continuing care completed questionnaires, which included Consumer Satisfaction Scale and the Korean version of World Health Organization Quality of Life Assessment Instrument-Brief (WHOQOL-BREF). Subject's sociodemographic and service utilization characteristics were compared using t-test or one-way analysis of variance. To examine the influence of these variables on quality of life, stepwise multiple regression was conducted. RESULTS: Consumer satisfaction scores differed significantly depending on the length of contact with a current mental health staff. In a stepwise multiple regression model, service relevance and occupation together explained 20.5% of variance in quality of life. CONCLUSION: The results suggest that continuity in contact with a current mental health staff was important in consumer satisfaction. Service relevance and occupation had an impact on quality of life.
Consumer Satisfaction
;
Humans
;
Mental Health Services*
;
Mental Health*
;
Occupations
;
Quality of Life*
;
Surveys and Questionnaires
;
Schizophrenia*
;
World Health Organization
4.Imaging Findings of Cerebellopontine Angle Cistern Melanocytoma: A Case Report.
Sung Mi KIM ; Jin Ok CHOI ; Myung Jin JOO
Journal of the Korean Radiological Society 2000;42(3):439-442
Because melanocytes are found throughout the leptomeninges, primary melanotic pigmented tumors such as pigmented meningioma, malignant melanoma, melanoblastosis, and melanocytoma can arise from this region. Melanocytomas have been described in the literature as isodense or hyperdense compared with brain parenchyme, as seen on noncontrast-enhanced CT, and as showing relatively homogeneous enhancement. MR imaging demonstrates a high signal on T1-weighted images, and an iso to hypointense signal on T2- weighted images. We report the imaging findings of a melanocytoma that showed hyperdense attenuation on precontrast CT with homogeneous enhancement and hyperintense signal intensity on T1-weighted images and dark signal intensity enhancement on T2-weighted images, and also review the literature.
Brain
;
Cerebellopontine Angle*
;
Magnetic Resonance Imaging
;
Melanocytes
;
Melanoma
;
Meninges
;
Meningioma
5.Brain MRI Findings of the Cri-Du-Chat Syndrome: A Case Report and Summary
Jin Sol CHOI ; Eun Ae YOO ; Jin Ok CHOI ; Soo Jung KIM
Journal of the Korean Radiological Society 2020;81(4):979-984
Cri-du-chat syndrome is a rare genetic disorder in which the patient presents with a characteristic high-pitched monotonous cry and recurrent aspiration pneumonia, attributed to abnormalities in the larynx, epiglottis, and nervous system. The most prominent brain MRI findings are the presence of pontine and cerebellar hypoplasia, which primarily involve posterior cranial fossa structures. Although atrophy of supratentorial structures were also a common radiological finding, it was considered to be a secondary change due to pontine hypoplasia. Here, we present the case of a three-month-old patient presenting with cri-du-chat at our institution. The patient also showed the presence of prominent pontine hypoplasia similar to previously reported cases; however, contrary to other cases, there was a general delayed myelination of brain instead of decreased myelination of anterior limb of internal capsule. Since the larynx, pons, and cerebellum all originated from similar notochord level, which suggests anomaly in early stage of development, laryngeal, and brain anomaly characteristically observed in the cridu- chat syndrome.
6.Delayed Post-Hypoxic Leukoencephalopathy Induced by an Overdose with Fentanyl Patches: A Case Report
Jin Sol CHOI ; Eun Ae YOO ; Jin Ok CHOI ; Soo Jung KIM
Journal of the Korean Radiological Society 2020;81(4):972-978
Fentanyl intoxication has occasionally been reported since fentanyl patches became available for medical use. Delayed post-hypoxic leukoencephalopathy is a complication of hypoxia. However, its neuropsychiatric symptoms can be delayed, and it can progress to leukoencephalopathy even after full recovery from coma due to acute intoxication. Herein, we report a case of fentanyl intoxication in a 65-year-old man who was presented to the hospital because of unconsciousness for 13 hours after using ten fentanyl patches simultaneously. Initial brain CT findings were non-specific. Twenty days later, delayed neuropathologic symptoms manifested, and MRI showed bilaterally symmetrical, heterogeneous, confluent high signal intensities on T2-weighted/fluid attenuated inversion recovery MRI in the cerebral white matter with diffusion restriction. This was followed by rapid exacerbation of neuropathological symptoms with diffuse severe cerebral atrophy over 1 year.
7.Dose Characteristics of Stereotactic Radiosurgery in High Energy Linear Accelerator Photon Beam.
Journal of the Korean Society for Therapeutic Radiology 1992;10(2):137-146
Three-dimensional dose calculations based on CT images are fundamental to stereotactic radiosurgery for small intracranial tumor. In our stereotactic radiosurgery program, irradiations have been performed using the 6 MV photon beam of linear accelerator after stereotactic CT investigations of the target center through the beam's-eye view and the coordinates of BRW frame converted to that of radiosurgery. Also we can describe the tumor diameter and the shape in three dimensional configuration. Non-coplanar irradiation technique was developed that it consists of a combination of a moving field with a gantry angle of 140degree, and a horizontal couch angle of 200degreearound the isocenter In this radiosurgery technique, we provide the patient head setup in the base-ring holder and rotate around body axis. The total gantry moving range shows angle of 2520 degrees via two different types of gantry movement in a plane perpendicular to the axis of patient. The 3-D isodose cuties overlapped to the tumor contours in screen and analytic dose profiles in calculation area were provided to calculate the thickness of 80% of tumor center dose to 20% of that. Furtheremore we provided the 3-D dose profiles in entire calculation plane. In this experiments, measured isodose cuties in phantom irradiation have shown very similar to that of computer generations.
Axis, Cervical Vertebra
;
Family Characteristics
;
Head
;
Humans
;
Particle Accelerators*
;
Radiosurgery*
8.Anatomical variants of paranasal sinus affecting the ostiomeatal unit.
Seong Hee CHOI ; Jae Won AHN ; Jeong Wha MOON ; Jin Wha KANG ; Ok KIM
Journal of the Korean Radiological Society 1993;29(3):373-377
It is well known that anatomic variations affecting the ostiomeatal unit (OMU) become one of the causes of mucosal abnormalities of paranasal sinuses (PNS). Findings of coronal plane CT scans of PNS were analyzed in 95 patients with sinusitis or sinusitis-like complaints. Anatomical variations were seen in 88 cases of 60 patients. Mucosal abnormalities were seen in 27 of 47 cases with concha bullosa, 23 of 37 cases with enlarged ethmoid bulla, 8 of 33 cases with Agger nasi, 20 of 26 cases with nasoseptal deviation, 7 of 8 cases with Haller cell, 3 of 6 cases with duoble middle turbinate, 4 of 6 cases with medially bent uncinate process, 1 cases with laterally bent uncinate process, and 33 of 40 cases with mixed variations. Mucosal abnormalities in cases with antomical variations were detected in 61 cases, including maxillary sinus(51 cases), anterior ethmoid sinus (26 cases), frontal sinus (4 cases), and mixed (32 cases). Mucosal abnormalities without anatomical variations were detected in 13 cases involving maxillary sinuses (7 cases), anterior ethmoid sinuses (5 cases), and frontal sinus(1 cases). In conclusion, as coronal plane CT scan has the capability of dolineating anatomical variations and mucosal abnormalities of PNS, it is considered useful in evaluating the treatment and prognosis of chronic or recurrent sinusitis.
Ethmoid Sinus
;
Frontal Sinus
;
Humans
;
Maxillary Sinus
;
Meperidine
;
Paranasal Sinuses
;
Prognosis
;
Sinusitis
;
Tomography, X-Ray Computed
;
Turbinates
9.Anatomical variants of paranasal sinus affecting the ostiomeatal unit.
Seong Hee CHOI ; Jae Won AHN ; Jeong Wha MOON ; Jin Wha KANG ; Ok KIM
Journal of the Korean Radiological Society 1993;29(3):373-377
It is well known that anatomic variations affecting the ostiomeatal unit (OMU) become one of the causes of mucosal abnormalities of paranasal sinuses (PNS). Findings of coronal plane CT scans of PNS were analyzed in 95 patients with sinusitis or sinusitis-like complaints. Anatomical variations were seen in 88 cases of 60 patients. Mucosal abnormalities were seen in 27 of 47 cases with concha bullosa, 23 of 37 cases with enlarged ethmoid bulla, 8 of 33 cases with Agger nasi, 20 of 26 cases with nasoseptal deviation, 7 of 8 cases with Haller cell, 3 of 6 cases with duoble middle turbinate, 4 of 6 cases with medially bent uncinate process, 1 cases with laterally bent uncinate process, and 33 of 40 cases with mixed variations. Mucosal abnormalities in cases with antomical variations were detected in 61 cases, including maxillary sinus(51 cases), anterior ethmoid sinus (26 cases), frontal sinus (4 cases), and mixed (32 cases). Mucosal abnormalities without anatomical variations were detected in 13 cases involving maxillary sinuses (7 cases), anterior ethmoid sinuses (5 cases), and frontal sinus(1 cases). In conclusion, as coronal plane CT scan has the capability of dolineating anatomical variations and mucosal abnormalities of PNS, it is considered useful in evaluating the treatment and prognosis of chronic or recurrent sinusitis.
Ethmoid Sinus
;
Frontal Sinus
;
Humans
;
Maxillary Sinus
;
Meperidine
;
Paranasal Sinuses
;
Prognosis
;
Sinusitis
;
Tomography, X-Ray Computed
;
Turbinates
10.Neurosonographic diagnosis of periventricular-intraventricular hemorrhage in low birth weight infants.
Hee Seok KOH ; Dong Kyun RYU ; Young Tack JANG ; Oh Kyung LEE ; Jin Ok CHOI
Journal of the Korean Pediatric Society 1993;36(1):57-66
Periventricular-intraventricular hemorrhage (PV-IVH)is one of the most important neurologic lesion of the low birth weight infants. Serial neurosonographic exeaminations were performed in 113 low birth weight infants who were admitted to the neonatal intensive care unit of Presbyterian Medical Center from November 1, 1990to July 31, 1991. The results were summarized as follows: 1) The incidence of PV-IVH in the study was 54% 2) According to Papile's grading system of PV-IVH, grade I was 32.8%, grade II was 45.9%, grade IIIwas 11.5% and grade IV was 9.8%. 3) The onset of PV-IVH was within the first 7 days of life in 82%. 4) Poor activity, apnea, bradycardia and hypotension were statistically significant clinical findings associated with PV-IVH(P<0.05). 5) The risk factors associated with PV-IVH were gestational age, birth weight, hyaling membrane disease, patent ductus arteriosus and artifical ventilation. 6) The mortality of PV-IVH was 0% for grade I, 10.7% for grade II,42.9% for grade III and 83.3% for gradeIV.
Apnea
;
Birth Weight
;
Bradycardia
;
Diagnosis*
;
Ductus Arteriosus, Patent
;
Gestational Age
;
Hemorrhage*
;
Humans
;
Hypotension
;
Incidence
;
Infant*
;
Infant, Low Birth Weight*
;
Infant, Newborn
;
Intensive Care, Neonatal
;
Membranes
;
Mortality
;
Protestantism
;
Risk Factors
;
Ventilation