Arteriovenous mafformation(AVM) of female pelvic organ is a rare disease of unknown cause. The authors' report a case of pelvic AVM which was incidentally found during US examination of the patient with choriocarcinoma after chemotherapy. The real-time sonography revealed several cystic lesions around the uterus with adjacent dilated tortuous vessels. The color Doppler sonography depicted abundant blood flow mixed with red and blue colors within the cystic lesions and rapid turbulent systolic and diastolic flows. CT showed well-enhancing round vascular lesions with elongated vessels in the pelvis, and MRI depicted signal-void cystic lesions on both T1 and T2 weighted images with small portions of high intensity within the lesions on T2 weighted image. The angiography revealed pelvic AVM fed by tortuous uterine and vaginal arteries with a dilated draining vein
Angiography ; Arteries ; Arteriovenous Malformations* ; Choriocarcinoma ; Drug Therapy ; Female ; Humans ; Magnetic Resonance Imaging ; Pelvis ; Pregnancy ; Rare Diseases ; Uterus ; Veins

Arteriovenous mafformation(AVM) of female pelvic organ is a rare disease of unknown cause. The authors' report a case of pelvic AVM which was incidentally found during US examination of the patient with choriocarcinoma after chemotherapy. The real-time sonography revealed several cystic lesions around the uterus with adjacent dilated tortuous vessels. The color Doppler sonography depicted abundant blood flow mixed with red and blue colors within the cystic lesions and rapid turbulent systolic and diastolic flows. CT showed well-enhancing round vascular lesions with elongated vessels in the pelvis, and MRI depicted signal-void cystic lesions on both T1 and T2 weighted images with small portions of high intensity within the lesions on T2 weighted image. The angiography revealed pelvic AVM fed by tortuous uterine and vaginal arteries with a dilated draining vein
Angiography ; Arteries ; Arteriovenous Malformations* ; Choriocarcinoma ; Drug Therapy ; Female ; Humans ; Magnetic Resonance Imaging ; Pelvis ; Pregnancy ; Rare Diseases ; Uterus ; Veins

PURPOSE: Results of 181 percutaneous needle aspiration biopsies performed with an 18-gauge needle during a period of 3 years were analyzed to determine efficacy and safety of the procedure. MATERIALS AND METHODS: Biposies were performed in patients that could not be diagnosed by bronchoscopy or sputum cytology. The biopsy procedure with 18-gauge Crown needle was guided by fiuoroscopy. The biopsy specimen placed in 10% formalin solution were histologically confirmed. RESULTS: In 160 patients(89%), the positive diagnosis was made by percutaneous needle aspiration biopsy. There were 153 lung lesions(120 malignant and 33 benign lesions) and 7 mediastinal lesions. the diagnostic accuracy of malignant and benign disease was 91% and 80% respectively. Complications included pneumothorax(n=11) and hemothorax(n=l):six of them required treatment with chest tube and the remainder showed spontaneous resporption. CONCLUSION: PCNB with an 18-gauge needle provided a reliable, relatively safe diagnostic tool to establish the diagnosis of both malignant and benign chest lesions.
Biopsy ; Biopsy, Needle* ; Bronchoscopy ; Chest Tubes ; Crowns ; Diagnosis ; Formaldehyde ; Humans ; Lung ; Needles* ; Sputum ; Thorax*

PURPOSE: Results of 181 percutaneous needle aspiration biopsies performed with an 18-gauge needle during a period of 3 years were analyzed to determine efficacy and safety of the procedure. MATERIALS AND METHODS: Biposies were performed in patients that could not be diagnosed by bronchoscopy or sputum cytology. The biopsy procedure with 18-gauge Crown needle was guided by fiuoroscopy. The biopsy specimen placed in 10% formalin solution were histologically confirmed. RESULTS: In 160 patients(89%), the positive diagnosis was made by percutaneous needle aspiration biopsy. There were 153 lung lesions(120 malignant and 33 benign lesions) and 7 mediastinal lesions. the diagnostic accuracy of malignant and benign disease was 91% and 80% respectively. Complications included pneumothorax(n=11) and hemothorax(n=l):six of them required treatment with chest tube and the remainder showed spontaneous resporption. CONCLUSION: PCNB with an 18-gauge needle provided a reliable, relatively safe diagnostic tool to establish the diagnosis of both malignant and benign chest lesions.
Biopsy ; Biopsy, Needle* ; Bronchoscopy ; Chest Tubes ; Crowns ; Diagnosis ; Formaldehyde ; Humans ; Lung ; Needles* ; Sputum ; Thorax*

No abstract available.
Bilirubin* ; Humans ; Infant, Newborn*

PURPOSE: Congenital Iobar agenesis of the liver is a rare anomaly. We report five cases (three cases of right Iobar agenesis and two cases of left Iobar agenesis) and discuss the radiologic findings of this congenital anomaly. MATERIALS AND METHODS: Between July, 1992 and February, 1993, three cases of right Iobar agenesis and two cases of left Iobar agenesis of the liver were diagnosed by means of computed tomography(CT) and/or sonography. MR imging was performed in two patients, cholangiography in two, and digital subtraction angiography in one. RESULTS: The main findings of right Iobar agenesis of the liver were nonvisualization of the right portal vein and absence of liver tissue to the right of gallbladder. The findings of left Iobar agenesis were nonvisualization of left portal vein, absence of liver tissue to the left of the gallbladder, and absence of ligamentum teres. The ancillary finding of the Iobar agenesis was visualization of less than three hepatic veins. CONCLUSION: It is important to consider Iobar agenesis of the liver in differential diagnosis when imaging studies reveal abnormal portal vein branches, unusual position of gallblader, absence of ligamentum teres, and visualization of less than three hepatic veins.
Angiography, Digital Subtraction ; Cholangiography ; Diagnosis, Differential ; Gallbladder ; Hepatic Veins ; Humans ; Liver ; Portal Vein

The components of bore marrow change dramatically during lifetime. To evaluate the bone marrow of cranium and upper cervical spine, the authors retrospectively evaluated 300 examinations of cranium and the second cervical bone in patients without known bone marrow abnormality. T1-weighted images were used to analyze the changes of lone marrow signal intensity according to the age and sex. The signal intensity of bone marrow of cranium increased most rapidly from birth to age of 10 years. Between 11 and 20 years of age, gradual increase of signal intensity was noted. There was minimal augment of signal intensity after age of 20 years. The examination of signal intensity of bone marrow of the cranium revealed slightly higher score in male than in female. The synchondrosis of the second cervical vertebra was visible in 97%. These results may be useful in the detection of abnormal bone marrow signal of cranium and upper cervical spine.
Bone Marrow* ; Female ; Humans ; Male ; Parturition ; Retrospective Studies ; Skull* ; Spine*

A case of myositis ossificans progressiva is reported. The patient, a 22-year -old progressive ossification for 16 years with severe motion limitation. Bone CT and MRI, bone scanning and muscle biopsy showed multiple ossifying lesions in the connective tissue. All labolatory findings are normal. But serum alkaline pbosphatase become worse with disodium etidronate(EHDP) therapy. The case is presented with the review of literatures.
Biopsy ; Connective Tissue ; Humans ; Magnetic Resonance Imaging ; Myositis Ossificans* ; Myositis*

Intracranial capillary hemangioma is extremely rare. We report the radiologic findings of this entily in the right middle cranial fossa of a 31-year-old man. The lesion was a well-marginated extra-axial tumor that showed hyperdensity on precontrast CT and homogeneous marked enhancement after contrast infusion. MR imaging showed isointensity with gray matter on T1-WI, hyperintensity of signal on T2-WI, and marked enhancement after gadolinium infusion. On cerebral angiography, irregular narrowing and displacement of the right internal carotid artery by the tumor were seen. The mass showed persistent capillary blush.
Adult ; Capillaries* ; Carotid Artery, Internal ; Cerebral Angiography ; Cranial Fossa, Middle ; Gadolinium ; Hemangioma, Capillary* ; Humans ; Magnetic Resonance Imaging

Inverted papilloma of the urinary bladder is a rare urothelial neoplasm, almost benign in its histologic morphology and clinical behavior. It occurs mainly in males and in the region of the trigone of bladder, or posterior urethra. But, it may arise in the renal pelvis. The characteristic downward proliferation of urothelial cells within the underlying lamina propria is of such magnitude as to an exophytic papillomatous tumor. The lesion may be easily mistaken for a low- grade papillary transitional cell carcinoma, although the histologic appearance is distinctly different, as is its subsequent behavior. Because of distinctive histologic features and patterns of growth it is possible to differentiate between two basic types of inverted papillomatous which were termed "trabecular" and "glandular". The trabecular type consists of widely branched, anastomosing cords of urothelial cells originating directly from the overlying transitional epithelium. The glandular type develops apparently from a proliferative cystitis cystica and glandularis which, therefore, should be considered a potentially preneoplastic lesion. The malignant tendency is now being reported with inverted papillomas of urinary tract and therefore they are no longer regarded as innocuous benign neoplasms. We report the 3 cases of inverted papilloma of the urinary bladder with a brief review of literature.
Carcinoma, Transitional Cell ; Cystitis ; Epithelium ; Humans ; Kidney Pelvis ; Male ; Mucous Membrane ; Papilloma, Inverted* ; Urethra ; Urinary Bladder* ; Urinary Tract