PURPOSE: With the use of personal computers generalized, departmental society leveled computerization isgoing on in some other departments. So we tried to develop a program having a simple user interface, various retrieval functions and, analytic & statistic process system to effectively help patient care suitable for works concerned with department of diagnostic radiology and works of department. MATERIALS AND METHODS: This programdeals with such target works as department of diagnostic radiology and some works to need a lot of book keeping. Itis deviced to operate with windows (Microsoft, America), and central processing unit(486DX-2), memory unit(8Mbyte). As a developmental tool, Foxpro 2.6 for windows R(Microsoft, America). RESULTS: This Program can be easily accessed even by staffs poor at computer and it can make many books recording various check-ups and operations unnecessary, which were difficult to keep. Besides, it can keep data as a unified form, and so it provides patient care and other works with convenience and helps applying those stored data scientific research. CONCLUSION: The above result shows that works of department can be effectively controlled by analyzing or printing various check-up and operation done by department of diagnostic radiology.
Humans ; Memory ; Microcomputers* ; Patient Care

We report a rare case of expansile leiomyoma arising from the ilium of a 12-year-old girl. A plain radiographand CT both showed a lesion consisting of a well-defined area of expansile soft tissue mass with a thin scleroticrim and septae, surrounded by thin overlying cortex. MRI revealed a well-defined area of inhomogeneously higher signal intensity than that of surrounding muscle but of similar signal intensity than that of the red marrow of the opposite ilium on proton and T2W1. Inhomogeneous but intense enhancement was noted on Gd-enhanced T1W1. Angiography revealed hypervascularity and tumor staining. Microscopic examination on immunochemical staining with actin revealed a spindle cell tumor supporting the smooth muscle cell origin of the mass.
Bone Marrow ; Child ; Female ; Humans ; Ilium ; Leiomyoma ; Magnetic Resonance Imaging ; Myocytes, Smooth Muscle ; Protons

PURPOSE: To analyse and interpret different sonographic findings in acute nonperforated and appendicitis. MATERIALS AND METHODS: In 46 cases of acute appendicitis in children(26 girls, 20 boys) proven by surgery, sonographic findings were reviewed retrospectively. The findings of nonperforated and perforated appendicitis were analysed, focusing on the size, shape and echogenicity of the appendix, echo patterns of periappendiceal abscesses, mesenteric lymphadenopathy, and the prevalence of appendicolith. RESULTS: A noncompressible distended appendix was present in 18 of 21 patients with nonperforated appendicitis and in 13 of 25 patients with perforation. In 18 patients with nonperforated appendicitis, the average diameter of distended appendix was 8.6mm;target appearance was noted in 16 patients and loss of echogenic submucosa in two. In 13 patients with perforated appendicitis, the average diameter of appendix was 9.1 mm;target appearance was noted in four patientsand loss of echogenic submucosa in nine. periappendiceal abscesses were present in 21 of 25 cases of perforated appendicitis, and the echogenicity of abscesses was mixed in 12 patients, hypoechogenic in eight, and hyperechogenic in one. Mesenteric lymphadenopathy was present in two of 21 patients with nonperforated appendicitis and in four of 25 with perforation. Appendicolith was detected on sonography in three of 25 patients with perforated appendicitis, but was found in seven patients during surgery. One patients with perforated appendicitis also had right side hydronephrosis. Sonographically false-negative results were obtained in sixcases. CONCLUSION: A sonographic examination was useful to differenciate perforated and nonperforated appendicitis in children. Loss of echogenic submucosa in the distended appendix and periappendiceal abscess formation were important findings in diagnosis of perforated appendicitis.
Abscess ; Appendicitis* ; Appendix ; Child* ; Diagnosis ; Female ; Humans ; Hydronephrosis ; Lymphatic Diseases ; Prevalence ; Retrospective Studies ; Ultrasonography

Giant cell tumor of the tendon sheath(GCTTS) is a benign condition which involves the synovium of the tendonsheaths, and usually occurs around the small joints, e. g. the ankle, knee, and wrist. Histologically, GCTTS is similar to pigmented villonodular synovitis(PVNS). The authors report MRI findings of a GCTTS. This showed lower signal-intensity lesions than adjacent muscles on T1-weighted, proton density weighted, and T2-weighted images.
Ankle ; Foot* ; Giant Cell Tumors* ; Giant Cells* ; Joints ; Knee ; Magnetic Resonance Imaging ; Muscles ; Protons ; Synovial Membrane ; Tendons* ; Wrist

A 60-year-old female presented with a slowly growing, painful mass in the superolateral portion of the rightt high. Physical examination, roentgenography, bone scan and magnetic resonance imaging revealed a soft tissue masswith mineralization which did not involve bone or joint. A triangular-shaped, mineralized lesion was found in the superior side of the greater trochanter on simple radiograph and on magnetic resonance imaging. It had not been detected clinically, and was asymptomatic. The masses were removed en bloc and diagnosed as extra articular osteochondroma. Eight months postoperatively, pain had almost been relieved.
Chondromatosis, Synovial* ; Female ; Femur ; Humans ; Joints ; Magnetic Resonance Imaging ; Middle Aged ; Osteochondroma ; Physical Examination ; Radiography

PURPOSE: To evaluate the MRI appearance of Kienbock's disease and correlate this with radiographic findings. MATERIALS AND METHODS: Thirteen clinically confirmed cases of 12 patients with kienbock's disease wereretrospectively reviewed. The significance of signal intensity and pattern of Kienbock's disease on MR images was evaluated and the findings on MR images were compared with radiographic stages classified by Lichtman. Enhanced MR images were abtained in four cases. RESULTS: Lichtman's stage I accounted for one case; stage II, two; stage III, eight; stage IV, two. On T1-weighted MR images, the lunate showed focal low signal intensity in the stage I caseand in one of the two stage II case. Eleven wrists demonstrated a generalized loss of lunate signal. On T2-weighted images, the stage I case showed focal high signal intensity. In stage II, one showed focal low signal intensity and the other exhibited generalized low signal intensity with a high spot area. In stage III, five ofeight cases showed generalized low signal intensity, and one demonstrated high signal intensity. Two showed a high spot area within the generalized low signal intensity. In stage IV, one showed generalized low signal intensity and the other exhibited high signal intensity. No enhancement was seen in the three lesions with focal orgeneralized low signal intensity both on T1 and T2-weighted images. Conversely, one lesion with low signalintensity on T1-weighted imaes and high signal intensity on T2-weighted images showed contrast enhancement. CONCLUSION: Low signal intensity of the lunate on T1-weighted images is a consistent findings of Kienbock's disease. However, further studies such as follow-up MRIs, or pathologic correlation studies and MR contrast enhancement studies will be necessary to evaluate the sighificance of high signal intensity on T2-weighted images.
Follow-Up Studies ; Humans ; Magnetic Resonance Imaging* ; Osteonecrosis* ; Statistics as Topic ; Wrist

PURPOSE: To demonstrate the incidence and variation of the meniscofemoral ligament in Koreans. MATERIALS AND METHODS: A total of 100 MR studies of 95 patients were reviewed with special attention to the appearance and incidence of the meniscofemoral ligaments. The ligament of Wrisberg was classified according to proximal insertion: type I, insertion at the posterofemoral condyle ; type II, insertion at the distal portion of the posteriorcruciate ligament ; type III, insertion at the distal portion of the posterior cruciate ligament. On T2-weighted images, the high signal at the meniscal insertion of the meniscofemoral ligament was classified according to itsshape. RESULTS: The ligament o Humprey was observed in 17 cases and the ligament of Wrisberg was in 90:type I in41 cases;type II, 19 cases;type III, in 28 cases; unclassified, in 2 cases. In 77 cases, the cleft with high signal intensity was seen between the meniscofemoral ligament and the posterior cruciate ligament. CONCLUSION: From our results, the incidence of the ligament of Wrisberg on MRI was moe prevelant than the ligament of Humprey. An exact knowledge of the meniscofemoral ligament could be helpful in distinguishing it from pathologic lesions.
Classification* ; Humans ; Incidence* ; Knee ; Ligaments* ; Magnetic Resonance Imaging* ; Posterior Cruciate Ligament

PURPOSE: The purpose of this study is to determine characteristic CT findings in renal abscess. MATERIAL AND METHODS: Twenty cases of renal abscess were retrospectively analyzed for CT findings relating to the shape andextent of the abscess, change of nephrogram, peripheral rim enhancment, wedge-shaped enhancement on delayed scans, enlargement of the kidney involved and associated findings. RESULTS: Seven patients had a renal abscess at the right kidney, nine at the left kidney and two bilaterally. The abscesses were round in 18 cases and finger-like in two. Rim enhancement around renal abscess was seen in four cases(20%). Changes in the nephrogram around the abscess were seen in 12 cases(60%). In all six patients who had undergone delayed postcontrast scans, wedge-shaped enhancement was shown around the abscess(100%). In the observation of the extent of renal abscesses, 14 cases were within the kidney, six cases extended the beyond renal capsule, and two were loculated in the renal fascia itself. Renal enlargement was seen in nine cases(45%). CONCLUSION: These results suggest that CT findings such as delayed wedge-shaped enhancement, change of nephrogram, peripheral rim enhancement, renal enlargement, and associated findings are valuable for diagnosis, and that CT also gives information concerning the extent, evolution and complication of a renal abscess.
Abscess* ; Diagnosis ; Fascia ; Humans ; Kidney ; Retrospective Studies

Perforated appendicitis with an abscess formation is known to be the most common cause of tender mass in right lower abdomen. The differential diagnosis of a tender mass in right lower abdomen, however, is broad and includesvarious intraabdominal and intrapelvic lesions in origin. Preoperative accurate diagnosis is essential in order toavoid unnecessary surgery or complications resulting from delayed surgery. The purpose of this pictorial essay isto illustrate examples of various causes and methods to differentiate them with ultrasonography and CT.
Abdomen* ; Abscess ; Appendicitis ; Diagnosis ; Diagnosis, Differential ; Ultrasonography ; Unnecessary Procedures

PURPOSE: To discribe the radiologic findings of idiopathic portal hypertension and to find the points of differentiation between idiopathic portal hypertension and liver cirrhosis. MATERIALS AND METHODS: Four portogramsin five patients who for four years had suffered from pathologically confirmed idiopathic portal hypertension were retrospectively analyzed and compared with a portogram obtained from a cntrol subject with liver cirrhosis. RESULTS: Portographic findings of idiopathic portal hypertension were paucity of medium-sized portal branches, irregular and obtuse-angled division of peripheral branches, abrupt interruption and an avascular area beneath the liver margin. CONCLUSION: A portogram of idiopathic portal hypertension may be useful in differentiating this andliver cirrhosis.
Fibrosis ; Humans ; Hypertension, Portal* ; Liver Cirrhosis ; Portography