To evaluate the normal range of articular disk postion, MRIs of 25 temporomandibular joints(TMJs) in 19 asymptomatic volunteers were analysed. On the closed mouth sagittal T1 weighted MRI the junction of the posterior band and bilaminar zone was within 10°anterior from the vertical line through the apex of condylar head in 19 (76%) lad within 20°in 23 (92%) TMJs. The intermediate zone of the articular disk was located between the posterior surface of articular eminence and the anterior surface of condylar head in 22 (88%) TMJs. We suggest that on the closed mouth sagittal MRI the junction of the posterior band and the bilaminar zone could be within 10°anterior from the vertical line through the apex of condylar head in asymptomatic Korean persons. If the junction is located more than 20°anterior from the vertical line or the intermediate zone is anterior to the anterior surface of condylar head it is suggested that the disk is anteriorly displaced. Further studies are needed to evaluate the clinical significance of mild anterior displacement of the articular disk(11°-20°) in asymptomatic persons.
Head ; Humans ; Magnetic Resonance Imaging* ; Mouth ; Reference Values ; Temporomandibular Joint* ; Volunteers

No abstract available.
Female ; Hydronephrosis* ; Ovarian Cysts*

A total of 48 cases of tuberculous lesion in the lymph nodes (43 cases), lung (3 cases) and soft tissue (2 cases), was subjected to fine needle aspiration cytology(FNAC). The age of the patients ranged from 19 to 77 year-old (average 33.6 years in age) and the male to female ratio was 1: 4. Thirty-four cases (70.8%) demonstrated distinct granulomatous reaction with or without caseation necrosis, nine cases (18.8%) showed no granulomas, but large amount of necrotic debris with numerous polymorphonuclear cells and histiocytes, and five cases (10.4%) revealed acellular material only. The overall AFB positivity in smears was 62.5%. In areas associated with granulomatous reaction and necrosis, AFB positivity was 55.8%, while it was 80.0% in cases with acellular necrotic material. There were 2 cases of parasitic infestation which could not be easily differentiated from tuberculosis based on aspiration smears only.
Aged ; Biopsy, Fine-Needle ; Child* ; Female ; Granuloma ; Histiocytes ; Humans ; Lung ; Lymph Nodes ; Male ; Necrosis ; Tuberculosis ; Vesico-Ureteral Reflux*

PURPOSE: Classically air in the portal vein has been detected on plain radiography, but computed tomography and ultrasonography have been shown to be more sensitive. We report a case of air in the PV in a 10-day-old infant with pneumatosis intestinalis with its ultrasonographic and Doppler findings. MATERIAL AND METHODS: The patient was a 10-day-old infant born by cesarean section at 41 weeks. Simple abdomen film revealed branching pattern of radiolucent air shadows within the contour of liver, gas distention of bowel loops and thickenod bowel walls with lincar intraluminal air shadows in abdomcn, suggesting neerotizing enterocolitis. So we performed Doppler ultrasonography. RESULTS: Ultrasonography showed branching pattern of hyperechogenic dots along the lumen of left portal vein. The color Doppler study revcaled an aliasing duo to increased velocity and whirling pattern of blood flow, and the Duplex Doppler spectral display showed sharp, vertical bidirectional spikes by air in portal vein. CONCLUSION: Air in the portal voin can be easily diagnosed by the followign signs:hyperechogenic dots in the portal vein on ultrasonography and vertical, sharp bidirectional spikes superimposod on the usual Doppler tracing of the portal vein on Duplex ultrasonography.
Abdomen ; Cesarean Section ; Enterocolitis ; Female ; Humans ; Infant ; Liver ; Portal Vein* ; Pregnancy ; Radiography ; Ultrasonography ; Ultrasonography, Doppler

No abstract available.

A case of chondroma of soft tissue of right hand in 23-year old man was reported. The presenting symptom was a slow growing mass, causing mild tenderness. Radiologic examination revealed a well demarked and lobulated calcified mass, was located extraskeletally. Specimen exised from soft tisssue of the hypothenar area of the hand was 5×4×3.5cm sized mass, had gelatinous and gray-whitish appearance. On microscopical examination, the tumor was classified as a chondroma of soft tissue.
Chondroma ; Gelatin ; Hand

Intrathoracic meningocele is a protrusion of the spinal meninges through an intervertebral foramen into thethoracic cavity. The majority occur in association with neurofibromatosis. The authors experienced a case ofintrathoracic meningocele in 26 years old male patient associated with neurofibromatosis, and present conventional CT and CT metrizamide myelographic findings.
Humans ; Male ; Meninges ; Meningocele ; Metrizamide ; Myelography ; Neurofibromatoses

The indication of CT for the breast lesions are 1) Unusually extensive or small breast caused technicaldifficulties in performing mammograms. 2) Questionable mammographic findings, especially in dense proliferativebreast parenchyme, 3) Microcancer. 4) Suspicious regional lymph node enlargement of invasion of the chest wall bybreast cancer. The diagnosis of breast CT in breast cancer is based on pathologic anatomic change andcharacteristic increase of mean CT No. of lesion following contrast enhancement. Authors analysed CT of the 34patients who were clinically suspected breast cancer, and compared with mammography. The results are as follows:1. Pathological diagnosis of 34 cases were 27 cases of breast cancer, 4 cases of fibrocystic disease, 2 cases offibroadenoma, and 1 case of intraductal pupilloma. The diagnostic accuracy of CT in 27 breast cancer was 93%(25cases) and mammography 71%(19 cases). 2. Corect diagnosis of CT in 7 benign breast disease is in 5 cases andmammography in 5 cases. 3. The most importment finding of CT in breast cancer is characteristic increase of CT No.of lesion following contrast enhancement (200ml, 65%): over average 50HU in 19 cases of 27 breast cancers, 30-50HUin a 6 cases, 20-30HU in 2 cases with tumor necrosis. 4. Compared with mammography, other more valuable CTfindings of breast cancer are axillary lymph node enlargement and adjacentic pectoral muscle invasion. 5. Inconclusion, Breast CT is considered as a valuable diagnostic tool in evaluation of breast cancer, but not of benign breast disease.
Breast Diseases ; Breast Neoplasms ; Breast ; Diagnosis ; Lymph Nodes ; Mammography ; Necrosis ; Thoracic Wall

DSA(Digital Subtractin Angiography) is a valuable diagnostic imaging method in many clinical fields, includingranal-related conditons. Sixty four renal DSA examinations were performed in 59 patients with renal-relateddiseases from Jan. 1984 to Dec. 1985. Summary of these were as follows: 1. Intraarterial (IA)-DSA is performed in6 cases, intravenous(IV)-DSA in 58 cases. In 58 Examinations of IV-DSA, diagnostic image quality is obtained in 51cases(88%). 2. In investigations of a possible renovascular etiology of hypertension, IV-DSA,is a safe, sensitiveand accurate method. On screening for evaluation of renovascular hypertension, RSP should be replaced with IV-DSA,because IV-DSA is moe sensitive and accurate and can detect not only anatomic change of renal arttery but alsofunctional hemodynamic change. 3. IV-DSA is valuable in diseases with morphologic changes of vessels. Incharacterization of a known renal mass, and evaluation of hematuria, suspected aneurym and renal trauma, IV-DSA isvery useful diagnostic imaging modality. 4. In evaluation of potential renal donors, IV-DSA is an accurate andsafe method with 82.4% of accuracy. IV-DSA also is useful in follow-up of allograft recipients. 5. Ininvestigation of diabetic nephropathy, glomerulonephritis, pyelonephritis, IV-DSA is little helpful. 6. Theadvantages of DSA are well known, particularly post-procedure process using computer programs is helpful forobtaining informations of hemodynamic change or time-sequence-curve of density etc. More technical improvementwith this modality is required for improvement of the image quality and resolution. And more accumulation ofclinical experience is required in order to increase the diagnostic accuracy.
Allografts ; Angiography, Digital Subtraction ; Diabetic Nephropathies ; Diagnostic Imaging ; Follow-Up Studies ; Glomerulonephritis ; Hematuria ; Hemodynamics ; Humans ; Hypertension ; Hypertension, Renovascular ; Mass Screening ; Methods ; Pyelonephritis ; Tissue Donors

No abstract available.