1.Skin Manifestations of Patients with Liver Cirrhosis.
Hong Tak LEE ; Tae Young YOON ; Seung Ho CHANG
Korean Journal of Dermatology 1997;35(2):228-233
BACKGROUND: The high level of susceptibility of patients with liver cirrhosis (LC) to septicemic infection is thought to be due to decreased reticuloendothelial function and irnpairment of several components of cell mediated and humoral immunity. It is well known that LC may cause many characteristic skin changes including jaundice, spider angioma, palmar erythema, xanthelasrna and nail changes such as clubbing and white nails. OBJECTIVE AND METHODS: During a 7 month period frorn April to October 1995, 100 patients who had been diagnosed as having LC were evaluated for the duration of their LC, the associated diseases they had apart from LC and various skin manifestations. Also, we performed the tuberculin test in 20 patients with LC and evaluated the correlation of the tuberculin test with severity of LC divided into 3 groups according to the Childs classification. RESULTS: The results are summarized as follows ; 1. The most frequent duration of LC was under 5 years (74%). 2. The most common associated disease of patients with LC was upper GI bleeding including esophageal varix (24 cases). Also, diabetes mellitus (13 cases) and hepatic coma (11 cases) were observed. 3. Jaundice (82 cases) was the most frequent skin rnanifestation of patients with LC. In addition, vascular changes (81 cases) and various nail changes (69 cases) were observed. Onychomychosis was the most common nail change of patients with LC. 4. 60% of the patients who were given the tuberculin test showed anergy, and the frequency of anergy increased in proport on to the severity of LC. However, it was not significant statistically (p> 0.05 ). CONCLUSIONS: Some of the skin manifestations help in the diagnosis of LC. Also, increased frequency of tuberculin test anergy in proportion to the severity of LC is thought to be related to decreased cell mediated immunity, although statistically it is not significant.
Child
;
Classification
;
Diabetes Mellitus
;
Diagnosis
;
Erythema
;
Esophageal and Gastric Varices
;
Hemangioma
;
Hemorrhage
;
Hepatic Encephalopathy
;
Humans
;
Immunity, Cellular
;
Immunity, Humoral
;
Jaundice
;
Liver Cirrhosis*
;
Liver*
;
Skin Manifestations*
;
Skin*
;
Spiders
;
Tuberculin Test
2.An Immunohistochemical Stain in Paget's Disease.
Hong Tak LEE ; Seung Ho CHANG ; Tae Young YOON
Korean Journal of Dermatology 1998;36(5):796-803
BACKGROUND: Generally, there are few problems in the diagnosis of Paget's disease(PD) using the H&E stain. However, the differentiation of PD from the clonal type of Bowens disease and superficial spreading melanoma in situ that shows pagetoid spreading of tumor cells, may present diagnostic difficulties. In addition, the specia1 stains used for demonstrating the presenee of Pagets cells, such as PAS and mucicarmim, are non-specific and not always sensitive. So, inenunohistochemical stains with monoclonal antibodies against various antigens may be helpful for differentiating PD from ather morphologically similar skin lesions. OBJECTIVE: The purpose of this study was to investigate the diagnostic accuracy of immunohisto- chemical staining for diagnostic use in PD. METHODS: Immunohistochemical stains used in the biotin streptavidin amplificxl technique with monoclonal antibodies to several low rnolecular weight cytokeratin(CK)s, EMA and CEA, were performed on formalin-fixed, paraffin-embedded tissue. Twelve cases of PD(10 cases of extranmmmary PD and 2 cases of mammary PD), five cases of superficial spreading melanoma in situ and five cases of Bowens disease were investigated. RESULTS: The results were as follows. 1. Positive reactions with variable intensity using CK7, CKS, CK19 were seen in all cases(100%) of PD and the. staining intensity tor CK7 or CK19 was stronger than that of CKS. 2. Of the 12 cases of PD, both CK18 and CAM5.2 staining showed positivity in 11 cases(92%). 3. EMA and CEA staining showed positivity in 10(83%) and 9(75%) of 12 cases, respectively. 4. Some Pagets cells were negative for CK8, CK18 and EMA, although other positive cells were observed in the same sections. 5. All antigens were consistently negative in all cases of Bowens disease and superficial spreading melanoma in situ. CONCLUSION: The results show that moaoclonal antibodies to low molecular weight CKs are more sensitive than EMA or CEA in the demonstration of Pagets cells. Moreover, among the low molecular weight CK series, CK7 and CK19 are most useful for their high sensitivity and intensity.
Antibodies
;
Antibodies, Monoclonal
;
Biotin
;
Bowen's Disease
;
Coloring Agents
;
Diagnosis
;
Melanoma
;
Molecular Weight
;
Skin
;
Streptavidin
3.A Case of Infantile Myofibromatosis.
Hong Tak LEE ; Seung Ho CHANG ; Tae Young YOON
Korean Journal of Dermatology 1997;35(1):182-186
Infantile myofibromatosis is an uncornmon, benign, self-limiting, localized or generalized process, probably of hamartomatous origin, which consists to a large degree of cells having the characteristics of myofibroblasts and sometimes of pericytes. Both solitary and multicentric forms occur. Most lesions are present at birth or in early infancy, and some are familial in origin. A female newborn presented with a firm, round, red colored, 3 x 3 cm sized tumor with central necrosis on the left chest. Histological examination revealed well-circumscribed nodules consisting of short bundles of plump, spindle shaped cells displaying staining characteristics intermediate between fibroblasts and smooth muscle cells. The tumor was immunoreactive for actin but did not stain for desmin. A Follow-up examination at the age of 3 months revealed a moderate degree of spontaneous regressior of the lesion.
Actins
;
Desmin
;
Female
;
Fibroblasts
;
Follow-Up Studies
;
Humans
;
Infant, Newborn
;
Myocytes, Smooth Muscle
;
Myofibroblasts
;
Myofibromatosis*
;
Necrosis
;
Parturition
;
Pericytes
;
Thorax
4.Studies on parasitic helminths of Korea 5.Survey on intestinal trematodes of house rats.
Byong Seol SEO ; Seung Yull CHO ; Sung Tae HONG ; Sung Jong HONG ; Soon Hyung LEE
The Korean Journal of Parasitology 1981;19(2):131-136
A study was carried out to evaluate the house rats in southern Korea as reservoir host of intestinal trematodes, in 13 different areas: 7 in inland and 6 in brackish-water zones, during the period from August 1980 to August 1981. A total of 170 house rats was captured; 101 rats from inland and 69 from brackish-water zones. They consisted of 129 Rattus norvegicus, 22 R. rattus rufescens, and 19 unidentified. The infection status of the rats were as follows: Total 29 rats (17.1%) were infected by one or more kinds of intestinal trematodes; 27 from inland and 2 from brackish-water zones by areas. Rats in inland were more heavily infected. The intestinal trematodes collected from rats were identified as Echinostoma hortense, E. cinetorchis, Plagiorchis muris, Fibricola seoulensis, Clonorchis sinensis and Metagonimus yokogawai. As a reservoir host, the rats were very important in Echinostoma hortense and E. cinetorchis infection. Rats infected with these trematodes were found widely in southern Korea, and its infection rates were the highest among the discriminated flukes. In this study, no rats were found to be infected with Heterophyes and Pygidiopsis even in endemic areas. The negligible importance of rats as reservoir host of these heterophyid should be reevaluated in the future.
parasitology-helminth-trematoda
;
rat- Rattus norvegicus-Rattus rattus rufescens
;
zoonosis
;
epidemiology
;
Echinostoma hortense
;
Echinostoma cinetorchis
;
Plagiorchis muris
;
Fibricola seoulensis
;
Clonorchis sinensis
;
intestine
;
Metagonimus yokogawai
5.A Familial Nemaline Myopathy.
Tae Yong HONG ; Jae Hyun PARK ; Hong Dong KIM ; Hee Tae KANG ; Hye Je CHO ; Il Nam SUNWOO ; Tae Seung KIM
Journal of the Korean Neurological Association 1993;11(4):607-613
Nemaline myopathy is a rare congenital m opathy, characterized by nonprogressive or slowely progressive muscle weakness associated with rod-like structures in muscle fibers and characteristic dysmorphic features. We report the first farnilial nemaline myopathy in two generations of the same family, confirmed by muscle biospy in an 11-year-old boy and his mother. The patients had hypotonia and slowly progressive muscle weakness of the four limbs associated with characteristic facial dysmorphism and skeletal deformities. Light and electron microscopic study of a muscle biopsy showed numerous nemaline rods in both patients.
Biopsy
;
Child
;
Congenital Abnormalities
;
Extremities
;
Family Characteristics
;
Humans
;
Male
;
Mothers
;
Muscle Hypotonia
;
Muscle Weakness
;
Myopathies, Nemaline*
6.Ictal Cerebral Perfusion Patterns in Partial Epilepsy: SPECT Subtraction.
Hyang Woon LEE ; Seung Bong HONG ; Woo Suk TAE ; Sang Eun KIM ; Dae Won SEO ; Seung Cheol JEONG ; Ji Young YI ; Seung Chyul HONG
Korean Journal of Nuclear Medicine 2000;34(3):169-182
PURPOSE: To investigate the various ictal perfusion patterns and find the relationships between clinical factors and different perfusion patterns. MATERIALS AND METHODS: lnterictal and ictal SPECT and SPECT subtraction were performed in 61 patients with partial epilepsy. Bath positive images showing ictal hypoperfusion and negative images revealing ictal hypoperfusion were obtained by SPECT subtraction. The ictal perfusion patterns of subtracted SPECT were classified into focal hypoperfusion, hypoperfusion-plus, combined hypoperfusion-hypoperfusion, and focal hypoperfusion only. RESULTS: The concordance rates with epileptic focus were 91.8% in combined analysis of ictal hypoperfusion and hypoperfusion images of subtracted SPECT, 85.2% in hypoperfusion images only of subtracted SPECT, and 68.9% in conventional ictal SPECT analysis. Ictal hypoperfusion occurred less frequently in temporal lobe epilepsy (TLE) than extratemporal lobe epilepsy. Mesial temporal hypoperfusion alone was seen only in mesial TLE while lateral temporal hypoperfusion alone was observed only in neocortical TLE. Hippocampal sclerosis had much lower incidence of ictal hypoperfusion than any other pathology. Some patients showed ictal hypoperfusion at epileptic focus with ictal hypoperfusion in the neighboring brain regions where ictal discharges propagated. CONCLUSION: Hypoperfusion as well as hypoperfusion in ictal SPECT should be considered for localizing epileptic focus. Although the mechanisrn of ictal hypopertusion could be an intra-ictal early exhaustion of seizure focus or a steal phenomenon by the propagation of ictal discharges to adjacent brain areas, further study is needed to elucidate it.
Baths
;
Brain
;
Epilepsies, Partial*
;
Epilepsy
;
Epilepsy, Temporal Lobe
;
Humans
;
Incidence
;
Pathology
;
Perfusion*
;
Sclerosis
;
Seizures
;
Tomography, Emission-Computed, Single-Photon*
7.Cortical Deformation Zone in Neocortical Epilepsy: 3D Surface-Projection Rendering of Brain MRI .
Seung Bong HONG ; Woo Suk TAE ; Seung Cheol JEONG ; Hyang Woon LEE ; Dae Won SEO ; Ji Young YI ; Seung Chyul HONG
Journal of Korean Epilepsy Society 2000;4(1):3-11
PURPOSE: The detection of epileptogenic lesion plays an important role in the management of patients with partial epilepsy. Although the development of MRI improved the examination of cerebral hemispheres greatly, many patients with neocortical temporal lobe epilepsy (TLE) or extratemporal lobe epilepsy (extra-TLE) still show no lesion in conventional two-dimensional (2D) images. To increase the yield of MRI in those patients, we performed three-dimensional (3D) surface-projection rendering (SPR) of the cerebral hemispheres. METHODS: Conventional 2D MRI (T1, T2, FLAIR, thin slice SPGR) and 3D SPR were performed in 24 patients with neocortical TLE and extra-TLE, and 20 normal subjects. Sulcogyral patterns were evaluated blindly to clinical information. The locations of the epileptogenic zone, ictal onset zone (IOZ) and irritative zone (IRZ) were determined by intracranial EEG monitoring and epilepsy surgery. RESULTS: The 2D MRI identified epileptogenic lesions in five of the 10 neocortical TLE (50%) and five of the 14 extra-TLE (35.7%). 3D SPR revealed abnormal sulcogyral patterns in 9 of the 10 neocortical TLE (90%) and 9 of the 14 extra-TLE (64.3%). Cortical deformation zones with sulcogyral anomalies included the whole area of IOZ in 10 (55.5%) and IRZ in 6 (33.3%), overlapped with IOZ in 7 (38.9%) and IRZ in 11 (61.1%), were connected to IOZ in 1 (5.6%) and IRZ in 1 (5.6%). CONCLUSION: 3D SPR of volumetric MRI data can detect epileptogenic structural lesions of neocortical epilepsy that are not visible in the conventional 2D images.
Brain*
;
Cerebrum
;
Electroencephalography
;
Epilepsies, Partial
;
Epilepsy*
;
Epilepsy, Temporal Lobe
;
Humans
;
Magnetic Resonance Imaging*
8.Molecular cloning and characterization of an antigenic protein with a repeating region from Clonorchis sinensis.
Tae Yun KIM ; Shin Yong KANG ; Il Young AHN ; Seung Yull CHO ; Sung Jong HONG
The Korean Journal of Parasitology 2001;39(1):57-66
In the course of immunoscreening of Clonorchis sinensis cDNA library, a cDNA CsRP12 containing a tandem repeat was isolated. The cDNA CsRP12 encodes two putative peptides of open reading frames (ORFs) 1 and 2 (CsRP12-1 and -2). The repetitive region is composed of 15 repeats of 10 amino acids. Of the two putative peptides, CsRP12-1 was proline-rich and found to have homologues in several organisms. Recombinant proteins of the putative peptides were bacterially produced and purified by an affinity chromatography. Recombinant CsRP12-1 protein was recognized by sera of clonorchiasis patients and experimental rabbits, but recombinant CsRP12-2 was not. One of the putative peptide, CsRP12-1, is designated CsPRA, proline-rich antigen of C. sinensis. Both the C-termini of CsRP12-1 and -2 were bacterially produced and analysed to show no antigenicity. Recombinant CsPRA protein showed high sensitivity and specificity. In experimental rabbits, IgG antibodies to CsPRA was produced between 4 and 8 weeks after the infection and decreased thereafter over one year. These results indicate that CsPRA is equivalent to a natural protein and a useful antigenic protein for serodiagnosis of human clonorchiasis.
Amino Acid Sequence
;
Animals
;
Antigens, Helminth/*genetics/isolation & purification
;
Base Sequence
;
*Cloning, Molecular
;
Clonorchis sinensis/genetics/*immunology
;
DNA, Helminth
;
Gene Library
;
Human
;
Molecular Sequence Data
;
Rabbits
;
Recombinant Proteins
;
*Repetitive Sequences, Nucleic Acid
;
Support, Non-U.S. Gov't
9.Myoclonus Induced by the Use of Gabapentin.
Keun Tae CHO ; Seung Koan HONG
Journal of Korean Neurosurgical Society 2008;43(5):237-238
Myoclonus is a rare side effect of gabapentin (GBP) and has been reported in patients with preexisting myoclonus, mental retardation, chronic static encephalopathy, diffuse brain damage, impaired renal function, or end stage renal disease. We report a case of myoclonus in a patient with normal renal function and no previous disorders. A 69-year-old female underwent diskectomy and foraminotomy at the left L4-L5 level. Postoperatively,she complained of paresthesia in her left leg, which was thought to be due to root manipulation during surgery. To relieve the paresthesia, she was given tramadol, an oral opioid agonist, and GBP. One week after GBP was increased to 900 mg per day, myoclonus developed, which severely impaired her normal activity. Her symptoms resolved 2 days after discontinuation of GBP. The coadministration of tramadol and GBP may mutually enhance the myoclonic potential of each drug. The causal relationship between GBP and myoclonus was suggested by cessation of myoclonus after GBP discontinuation despite continued therapy with tramadol.
Aged
;
Amines
;
Analgesics, Opioid
;
Brain
;
Cyclohexanecarboxylic Acids
;
Diskectomy
;
Female
;
Foraminotomy
;
gamma-Aminobutyric Acid
;
Humans
;
Intellectual Disability
;
Kidney Failure, Chronic
;
Leg
;
Myoclonus
;
Paresthesia
;
Tramadol
10.Usefulness of Occipital EEG Spectral Profile in the Differential Diagnosis of Alzheimer Type and Vascular Dementia.
Seung Han SUK ; Il Hong SON ; Yong Tae KWAK
Journal of the Korean Neurological Association 2000;18(3):292-297
BACKGROUND: Alzhiemeranjx disease (AD) and vascular dementia (VD) are common types of dementia. As a result of the development of new specific agents for AD, and because vascular dementia is a potentially preventable dementia, differentiating these diseases is of great importance. The role of EEG spectral analysis in the differential diagnosis between Alzheimer type and vascular dementia is still controversial. Since there have been few studies concerning the differential diagnosis of dementia by EEG, the present study has focused on this aspect. Usefulness of EEG in differen-tial diagnosis of dementia will be elucidated by clarifying relationship between type of dementia and spectral profile of EEG. METHODS: We analyzed the power spectra taken from 16 derivations and spectral profile was constructed by averaging twenty 2 sec epochs in three study groups (normal controls, AD and VD). Spectral profile was divided into three groups; (I) type A, showing a dominant 6.5-12 Hz peak (ii) type B, lacking a dominant peak in the 6.5-12 Hz (iii) type C, corresponding to a flat, low voltage, spectrum. To elucidate the relationship between spectral profile and other factors including diagnosis, statistical test was done. RESULTS: (1) In AD, type C profile was statistically more prevalent than in VD and type A profile was reversed. (2) In AD, Mini-Mental State Examination (MMSE) score was statistically lower in type C profile. (3) Spectral profile was not associated with age, age of symptom onset, and symptom duration. CONCLUSIONS: This study suggested that spectral profile is a useful tool for the differential diagnosis of dementia (AD and VD) and correlated with the severity of disease in AD.
Dementia
;
Dementia, Vascular*
;
Diagnosis
;
Diagnosis, Differential*
;
Electroencephalography*