PURPOSE: This study was to evaluate the clinical usefulness of 99mTc-MDP bone scintigraphy for assessing vascular ingrowth into the ocular implants after enucleation or evisceration. MATERIALS AND METHODS: Twenty-four patients (M:F=7:17, mean age: 36 years), who buried a coralline hydroxyapatite after uncomplicated enucleation or evisceration surgery were studied. Dynamic and static scintigraphy on the orbit fossa were obtained after injection of 740 MBq 99mTc-MDP to evaluate the status of vascularization. The study was performed from the 3 to 33 weeks after surgery. According to the visual analysis, activity greater than nasal bridge was graded as 4, equal to the nasal bridge as 3, less than nasal bridge but greater than normal orbit as 2, greater than normal orbit but less than grade 2 as 1. Uptake ratio was also calculated by measuring the implants activity (H) and contralateral orbit activity (N). Grading score and uptake ratio were compared with clinical outcome of vascularization. Additionally, we also analyzed the vascularization status as time lapse between primary surgery and scintigraphic study and surgical methods. RESULTS: Twenty-one patients who had bone scintigraphy at 11 weeks after surgery showed increased uptake above grade 2 and greater H/N ratio than 1.56. Of these, 19 patients who had drilling surgery for permanent peg application showed adequate bleeding during the procedure. The activity grade and uptake ratio were inversely correlated with vascular ingrowth. Higher than grade 2 or greater than 1.56 in H/N ratio seemed to be an indicator for better prognosis. Accomplishment of vascularization was not affected by the surgical way such as enucleation or evisceration. CONCLUSION: 99mTc-MDP bone scintigraphy can be a useful method to evaluate the vascularized status of implants. Adequate time for 99mTc-MDP bone scintigraphy may be 11-20 weeks after enucleation or evisceration.
Durapatite* ; Hemorrhage ; Humans ; Orbit ; Prognosis ; Radionuclide Imaging* ; Technetium Tc 99m Medronate*

In order to search for anti-Herpes simplex virus (HSV) type-1 agents from Korean medicinal herbs and Korean traditional prescriptions (herb complexes), we selected 80 medicinal herbs and 45 prescriptions, based on a review of the Korean traditional medicine books. Both methanol extracts and boiling-water extracts were tested by means of the MTT assay (tetrazolium based colorimetric assay). Ten of the 125 methanol extracts: CM-11, CM-18, CM-19, CM-21, CM-22, CM-39, MM-3, MM-18, MM-29, MM-73 (see explanation of nomenclature below), showed efficacy against HSV-1. Twelve of the water extracts: CW-2, CW-3-I, CW-3-II, CW-18, MW-3, MW-5 MW-6, MW-12, MW-47, MW-69, MW-73 and MW-75 were active. #3 (individual herb) and #73 (individual herb) were interesting because both water and methanol extracts were active. Especially, #3 is a part of composition of Hong-il-laksamd ngbang and Hojanghaedokt'ang which have anti-HSV-1 activitives. The SI value of MW-69 and CW-18 was relative high as 10.2+/-0.7 and 11.8+/-2.2. The cytotoxic effect on Vero cells of Panch' n-ch' ngbang, Taraxacum platycarpum H. Dahlst. and acycloguanosine was determined by MTT assay. Water extracts of Panch' ngch' ngbang (prescription) and Taraxacum platycarpum H. Dahlst. showed very weak cytotoxic effects on Vero cells at > 100 mug/ml but acycloguanosine showed strong cytotoxic effects on Vero cells at > 100 mu g/ml. As a result, #3, #73, MW-69 and CW-18 are considered as potentially useful for anti-HSV-1 agent and will be the focus of further research. Abbreviations: CM - methanol extracts of traditional prescriptions; CW - water extracts of traditional prescriptions; MM - methanol extracts of individual herbs; MW - water extracts of individual herbs.
Abbreviations ; Acyclovir ; Herpes Simplex* ; Herpesvirus 1, Human ; Mass Screening* ; Medicine, Korean Traditional ; Methanol ; Plants, Medicinal* ; Prescriptions* ; Simplexvirus* ; Taraxacum ; Vero Cells ; Water

No abstract available.
Nucleopolyhedrovirus* ; Sequence Analysis*

PURPOSE: The purpose of this study was to evaluate the differences in the ablation effects of percutaneous ethanol injection therapy (PEIT), percutaneous microwave coagulation therapy (PMCT), and radiofrequency (RF) ablation therapy in extracted bovid livers, and to assess the appropriate therapeutic method for treating hepatic tumors according to their shape, size and location. MATERIALS AND METHODS: PEIT, PMCT and RF ablation were performed at 1 cm and 5 cm depth in bovid livers. PEIT was performed with 1, 2, 3 and 4 ml of ethanol, PMCT with 60 watt for a 30 th, 60 th and 120 th of a second, and RF ablation for 6, 8, 10, 12 and 14 minutes. Ultrasonography was used for the detection of the tissue necrosis that followed the different therapeutic modalities. RESULTS: For PEIT, the extent of the necrosis was smaller than that of the other modalities. For PMCT, the necrosis was elliptical and longer in length. For RF, the necrosis was oval and larger in size. At 1 cm depth for PMCT and RF ablation, the liver capsule was injured. CONCLUSION:We concluded that these different findings in tissue necrosis would aid in selecting the appropriate therapeutic method for hepatic tumors according to the tumors' shape, size and location.
Ethanol* ; Liver* ; Microwaves* ; Necrosis ; Ultrasonography

Antigens, CD20 ; metabolism ; Breast Neoplasms ; diagnosis ; diagnostic imaging ; metabolism ; Female ; Humans ; Immunohistochemistry ; Lymphoma ; diagnosis ; diagnostic imaging ; metabolism ; Middle Aged ; Positron-Emission Tomography ; Radiography ; Ultrasonography

PURPOSE: Intraductal papilloma (IDP) is a benign breast disease with malignant potential, for which complete surgical excision is usually recommended. The aim of the present study was to investigate predictive factors for upgrading patients with a benign papillary lesion (BPL). METHODS: This study was an observational study using a prospectively collected cohort. In total, 13,049 patients who underwent a core needle biopsy (CNB) for a breast lesion between January 2009 and May 2015 were enrolled. We reviewed all patients with pathologically confirmed BPL from a CNB. RESULTS: Surgical treatment was performed for 363 out of a total of 592 lesions. According to the pathological differences, the lowest upgrade rate was shown in IDP without atypia (without atypia, 6.0%; with atypia, 26.8%; papillary neoplasm, 31.5%; p<0.001). The univariate analysis showed that, in IDP without atypia, the age at diagnosis, size of BPL on ultrasonography, and density on mammography were associated with upgrading. The multivariate analysis revealed that age >54 years and lesion size >1 cm were significantly associated with upgrade to malignancy (odds ratio [OR]=4.351, p=0.005 and OR=4.236, p=0.001, respectively). CONCLUSION: The indications for surgical treatment can be defined as age >54 years and mass size >1 cm, even in IDP without atypia in the CNB results; this also includes cases of IDP with atypia or papillary neoplasm. Therefore, we suggest that close observation without surgery is sufficient for younger women with a small IDP without atypia.
Biopsy ; Biopsy, Large-Core Needle* ; Breast Diseases ; Breast Neoplasms ; Breast* ; Cohort Studies ; Diagnosis ; Female ; Humans ; Mammography ; Multivariate Analysis ; Observational Study ; Papilloma, Intraductal ; Prospective Studies ; Ultrasonography

Thyroglossal duct cysts develop in the persistent remnants of the thyroglossal tract between the origin of the thyroid at the foramen cecum and the final position of the thyroid gland. Thyroglossal duct cyst can present anywhere from the base of the tongue to the manubrium, but its occurrence within the thyroid gland is very rare. We report here on a 41-year-old woman who presented with a cystic thyroid nodule that was due to an intrathyroid thyroglossal duct cyst. The sonogram, showed a hypoechoic nodule that measured 0.7 x 0.6 cm in the left thyroid lobe. Left lobectomy of the thyroid gland was performed and microscopic examination revealed a cyst lined by non-keratinized squamous epithelium, which was consistent with a thyroglossal duct cyst in the thyroid gland. Intrathyroid thyroglossal duct cyst should be considered in the differential diagnosis of a cystic thyroid nodule. This is the first reported case of a intrathyroid thyroglossal duct cyst in a Korean adult.
Adult ; Cecum ; Diagnosis, Differential ; Epithelium ; Female ; Humans ; Manubrium ; Thyroglossal Cyst* ; Thyroid Gland ; Thyroid Nodule ; Tongue

PURPOSE: To give a help in the interpretation of cardiac cine-MR examination, the extent, shape, and timing of appearance of signal void regions near atrioventricular(A-V) valve prospectively evaluated in the healthy population. MATERIALS AND METHODS: Using an axial gradient-echo technique with small flip angle, repetition time(TR) of 36 msec and echo time(TE) of 22 msec, 20 volunteers without known valvular abnormalities undertook cardiac cine-MR imaging including atrioventricualr valve areas. RESULTS: Transient signal void was observed within the atrium near the tricuspid(13/20 = 65%) and mitral valves(9/20 = 45%), respectively, which is so called "physiologic atrioventricular valvular insufficiency". Eight subjects revealed the signal void areas near both tricuspid and mitral valves but, 5 subjects didnot show any evidences of physiologic insufficiency. This physiologic condition does not extend more than lcm proximal to A-V valve plane and is generally observed only during early systole. Its morphology is semilunar or triangular configuration with the base to the valve plane in most cases of normal tricuspid insufficiency and small globular appearance in most cases of normal mitral insufficiency. CONCLUSION: Awareness of normal signal void areas near the A-V valve and their characteristics is critical in the interpretation of cardiac cine MR examinations and maybe helpfal in the study of the normal cardiac physiology.
Magnetic Resonance Imaging* ; Mitral Valve ; Mitral Valve Insufficiency ; Physiology ; Prospective Studies ; Systole ; Volunteers

PURPOSE: Retrospective studies were carried out to evaluate the usufulness of CT in differentiating benign or malignant intrahepatic duct(IHD) dilatation due to extrahepatic duct(EHD) obstruction. MATERIALS AND METHODS: Among 75 cases of IHD dilatation, 35 cases(47%) which did not show causative lesion on CT were classified into central or peripheral type according to the extent of the dilatation and into pruned or beaded form according to its pattern. We considered central type or pruned form as a benign feature while peripheral type or beaded from as a malignant feature. Predictions of benignancy or malignancy were made according to the pattern and the extent of IHD dilatation. In all 75 cases, maximum caliber of IHD at portal vein bifurcation were examined. RESULTS: In regard to the classification of the extent, 80% (28 out of the 35 cases:11 of 15 cases of benignancy and 17 of 20 cases of malignancy) of our prediction was correct. As to the classification of the pattern, similar results(82% correct prediction) were obtained(14 out of 17 cases):ln 15 cases of benignancy, we observed six cases of pruning and 1 case of beading. Among the 20 cases of malignancy, two cases of pruning and eight cases of beading of IHD dilatation were observed. Mean diameters of IHD at portal vein bifurcation were 10.1ram in benignancy and 15.1mm in malignancy.(Diameters less than 11mm was suggestive of benignancy(alpha =0.05). CONCLUSION: Evaluation of the extent, the pattern, and the degree of IHD dilatation is necessary in differential diagnosis of benignancy and malignancy of EHD obstruction. We conclude that CT is a useful tool for this purpose of differential diagnosis of the benignancy and the malignancy of extrahepatic biliary obstruction.
Classification ; Diagnosis, Differential ; Dilatation* ; Portal Vein ; Retrospective Studies ; Tomography, X-Ray Computed*

PURPOSE: MR is the most useful imaging method in evaluating the anatomic changes of the optic chiasm (OC). The purpose of this study is to investigate the relationship between the OC displacement and visual manifestations. MATERIALS AND METHODS: We retrospectively reviewed 44 patients who showed displacement of OC on brain MR. The pattern of OC displacement was classified into 3 groups according to following criteria: group A included the patients with OC displacement only due to empty sella;group B represented the patients with OC displacement by a lesion and the border between the lesion and OC was distinct;and group C was the patients with OC displacement by a lesion and had a indistinct border or thinning of the OC. RESULTS: Visual symptoms and signs were noted in 12 patients and the most common sign was bitemporal hemianopsia. In group A(7 patients), the visual symptoms and signs were seen in only one patient(14%), in whom contracted visual fields persisted since previous pituitary apoplexy had developed. In group B(30 patients), the visual symptoms and signs were seen in 4 patients(13%) who had tumorous conditions except one case of cysticercosis. In group C(7 patients), the visual symptoms and signs were seen in all patients (100%). CONCLUSION: The more OC is compressed, the more the prevalence of visual symptoms and signs increases. However, there was no correlation between the occurrence of visual symptoms and the presence of OC displacement only without compression.
Brain ; Cysticercosis ; Hemianopsia ; Humans ; Optic Chiasm* ; Pituitary Apoplexy ; Prevalence ; Retrospective Studies ; Visual Fields