No abstract available.
Cytomegalovirus Infections* ; Cytomegalovirus* ; HIV Infections* ; HIV* ; Humans

Thyroid cancer is not only an infrequent cancer, but also is the most common malignancy of the endocrine system. When thyroid cancer occurs in childhood and adolescence, it is an unusual but interesting malignancy. Thyroid cancer in childhood and adolescence has a slightly lower preference for female than for male subjects, as compared to adult patients. With regard to the pathogenesis the only factor definitely known to promote development of thyroid cancer in the pediatric age group is irradiation. The evidence demonstrates that thyroid carcinoma in the pediatric age group is a biologically self-reliant and more hostile nature than in adults but paradoxically the prognosis is good. Enhanced survival resulting from advances in therapy in patients with Hodgkin's disease is associated with long-term morbidity, including the potential for the development of a second solid malignancy. Second malignant neoplasms(SMNs) have become a principal consideration in evaluating the prolonged consequences of strategy in pediatric oncology. Thyroid carcinoma has proven to be a common SMN. We have experienced 2 cases of papillary thyroid cancer following radiation therapy for Hodgkin's lymphoma and a papillary thyroid cancer with pulmonary metastases.
Adolescent* ; Adult ; Endocrine System ; Female ; Hodgkin Disease ; Humans ; Male ; Neoplasm Metastasis ; Prognosis ; Thyroid Neoplasms*

No abstract available.
Tuberculosis, Meningeal*

No abstract available.
Chondrosarcoma* ; Nasal Cavity*

We report a case of pilomatrixoma presenting in the right cheek of a 6-year-old girl. In the panoramic view, a small, ovoid-shaped, and nonhomogenous calcified mass was superimposed on the right mandibular angle. The mass was located on the skin overlying the right mandibular ramus area in the skull P-A view. The tumor had a strongly reflective pattern with acoustic shadowing in sonographic view. We also illustrate how these lesions can be effectively diagnosed.
Acoustics ; Cheek* ; Child ; Female ; Humans ; Pilomatrixoma* ; Shadowing (Histology) ; Skin ; Skin Neoplasms ; Skull ; Ultrasonography

PURPOSE: The aim of present study is to estimate the relationship among reference lines used for taking the extraoral radiography and panoramic radiography. MATERIALS AND METHODS: Lateral cephalographs of 40 adults, aged 22 to 30 years were taken. Angles between reference lines (Frankfort line, canthomeatal line, infraorbitomeatal line, and occlusal plane) were measured. RESULTS: Angles between Frankfort line and canthomeatal line, Frankfort line and infraorbitomeatal line, Frankfort line and occlusal plane, canthomeatal line and infraorbitomeatal line, canthomeatal line and occlusal plane, and infraorbitomeatal line and occlusal plane were 16.1degrees(+/-2.2), 5.8degrees(+/-2.4), 8.7degrees(+/-3.5), 10.3degrees(+/-1.3), 24.8degrees(+/-4.0), and 14.5degrees(+/-4.4), respectively. CONCLUSION: Angle between frankfort and canthomeatal line is very different with commonly known angle. Frankfort horizontal reference lines used for panoramic radiography need an exact definition and more accurate standard is needed for the taking of panoramic radiograph
Adult ; Cephalometry ; Dental Occlusion ; Humans ; Radiography* ; Radiography, Panoramic

PURPOSE: The purpose of this study was to evaluate comparison of static MRI and pseudo-dynamic (cine) MRI in temporomandibular joint (TMJ) disorder patients. MATERIALS AND METHODS: In this investigation, 33 patients with TMJ disorders were examined using both conventional static MRI and pseudo-dynamic MRI. Multiple spoiled gradient recalled acquisition in the steady state (SPGR) images were obtained when mouth opened and closed. Proton density weighted images were obtained at the closed and open mouth position in static MRI. Two oral and maxillofacial radiologists evaluated location of the articular disk, movement of condyle and bony change respectively and the posterior boundary of articular disk was obtained. RESULTS: No statistically significant difference was found in the observation of articular disk position, mandibular condylar movement and posterior boundary of articular disk using static MRI and pseudo-dynamic MRI (P>0.05). Statistically significant difference was noted in bony changes of condyle using static MRI and pseudo-dynamic MRI (P<0.05). CONCLUSION: This study showed that pseudo-dynamic MRI didn't make a difference in diagnosing internal derangement of TMJ in comparison with static MRI. But it was considered as an additional method to be supplemented in observing bony change.
Humans ; Joints* ; Magnetic Resonance Imaging* ; Magnetic Resonance Imaging, Cine ; Mouth ; Protons ; Temporomandibular Joint ; Temporomandibular Joint Disorders

No abstract available.
Cystectomy* ; Quality of Life* ; Urinary Diversion*

Lower gastrointestinal complications often develop in end stage renal disease patients, and among the more problematic is recurrent colon ulcer. The exact pathogenesis of this condition is not known and there were no specific therapeutic modalities concerning this type of disease entity. We report, with a literature review, a case of recurrent colon ulcer with intermittent hematochezia in an end stage renal disease patient on long term hemodialysis that improved after conversion to peritoneal dialysis.
Aspirin/therapeutic use ; Colon/pathology ; Colonic Diseases/complications/*diagnosis/drug therapy ; Colonoscopy ; Drug Therapy, Combination ; Gastrointestinal Hemorrhage ; Humans ; Kidney Failure, Chronic/*complications ; Male ; Middle Aged ; Peritoneal Dialysis ; Recurrence ; Ticlopidine/therapeutic use ; Ulcer/complications/*diagnosis/drug therapy

STATEMENT OF PROBLEM: Initial stability of implant is an important factor for predicting osseointegration. It requires a rapid, non-invasive, user-friendly technique to frequently assess the implant stability and the degree of osseointegration. PURPOSE: The aim of this study was to evaluate the correlation between the resonance frequency analysis (RFA) and the radiographic method for peri-implant bone change under in vitro conditions. MATERIAL AND METHOD: Twenty implants of 3.75 mm in diameter(Neoplant, Neobiotech, Korea) were used. To simulate peri-implant bone change, 2 mm-deep 45degrees range horizontal defect and 2 mm-deep 90 degrees range horizontal defect area were serially prepared perpendicular to the X-ray beam after conventional implant insertion. Customized film holding device was fabricated to standardize the projection geometry for serial radiographs of implants and direct digital image was obtained. ISQ values and gray values inside threads were measured before and after periimplant bone defect preparation. Results. Within a limitation of this study, ISQ value of resonance frequency analysis was changed according to peri-implant bone change (p<0.05) and gray value of radiographic method was changed according to peri-implant bone change (p<0.05). There was no correlation between the ISQ value and the gray value for peri-implant bone change (p>0.05). But, in horizontal defect condition, relatively positive correlation were between ISQ and gray values(r=0.663). CONCLUSION: This results provided a possibility that peri-implant bone change may be evaluated by both RFA and radiographic method.
Dental Implants ; Osseointegration ; Radiography