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  • 1
    Electronic Resource
    Electronic Resource
    Uterus didelphys associated with obstructed hemivagina and ipsilateral renal agenesis: MR findings in seven cases (1998)
    Springer
    Abdominal imaging 23 (1998), S. 437-441 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Müllerian duct anomaly—Complications—MRI.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Although a specific syndrome of the uterus didelphys, obstructive hemivagina, and ipsilateral renal agenesis had been reported in gynecologic literatures, it is not familiar to radiologists. We introduce this syndrome with radiological, especially MR findings. Methods: Imaging findings and medical records of seven patients with this syndrome were retrospectively reviewed. Results: MR clearly demonstrated uterus didelphys with obstructed hemivagina in six of the seven patients. A remaining one showed uterus didelphys with left-sided hematometra and hematosalpinx who had undergone vaginal septum incision prior to the MR. We could also recognize ipsilateral renal agenesis in all five patients, in whom renal areas were examined on MR. After vaginal septum resection, symptoms disappeared in six patients. We could observe the disappearance of the obstructive complications with MR in three patients. Conclusions: MR can do much for the early diagnosis and the prevention against further complications of this condition because it can demonstrate the müllerian duct anomaly complicated with obstructed hemivagina in detail and even ipsilateral renal agenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900375
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  • 2
    Electronic Resource
    Electronic Resource
    Angiomyolipoma of the liver: significance of CT and MR dynamic study (1998)
    Springer
    Abdominal imaging 23 (1998), S. 520-526 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Angiomyolipoma—Liver, US, CT, MRI, angiography.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Angiomyolipoma is a benign mesenchymal tumor that has been reported frequently in the kidney but rarely in the liver. In the present study, we present four cases of hepatic angiomyolipoma with different radiologic appearances, discuss differential diagnosis, and review previously reported cases. One of our cases was followed for 8 years. Computed tomography (plain, enhanced, and dynamic study), magnetic resonance imaging (T1-weighted spin echo, T2-weighted spin echo, and dynamic study), ultrasonography, and angiography were performed in all cases. Although different radiologic appearances were observed in the tumors, based on different proportions of fat, blood vessels, and muscle, three cases were diagnosed as angiomyolipoma. In one case, it was quite difficult to make radiologic diagnosis; hepatocellular carcinoma with fatty metamorphosis in part was most likely suspected, but histopathological examination revealed angiomyolipoma with few fat elements. In the present study, early and prolonged enhancement of the lesion with the special pattern of time density/intensity curve was significant for angiomyolipoma, and we suggest that preoperative radiologic diagnosis of the lesion is possible in most of the cases. However, it can be quite difficult to distinguish angiomyolipoma from some hepatocellular carcinomas with fatty metamorphosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900391
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Mature teratoma of the posterior mediastinum (1998)
    Springer
    European radiology 8 (1998), S. 100-102 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Teratoma ; Posterior mediastinum ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The vast majority of germ cell tumors in the thorax arise at or near the thymus. We report a case of a 41-year-old man with mature teratoma of the posterior mediastinum. He was asymptomatic and was incidentally found to have a posterior mediastinal mass. Computed tomography was helpful in suggesting a diagnosis of mature teratoma by demonstrating the presence of fat and calcification. The differential diagnosis included neurogenic tumors, liposarcoma, and extramedullary hematopoiesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050347
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Well-differentiated liposarcoma of the retroperitoneum with a fat–fluid level: US, CT, and MR appearance (1998)
    Springer
    European radiology 8 (1998), S. 474-475 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Liposarcoma ; Retroperitoneum ; CT ; MR imaging ; US
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report a case of retroperitoneal liposarcoma with a fat–fluid level that has not been previously described. A 36-year-old man presented with abdominal distension. Ultrasonography, CT, and MR imaging showed a tumor with a fat–fluid level; nondependent fluid was characteristic of fat. Liposarcoma should be included in the differential diagnosis of tumors exhibiting a fat–fluid level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050418
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Solid cerebellar hemangioblastoma with an evolving large cystic component (1997)
    Springer
    European radiology 7 (1997), S. 910-912 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Hemangioblastoma ; Cerebellum ; MR imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We present a case of solid cerebellar hemangioblastoma which subsequently developed a large cystic component.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050226
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  • 6
    Electronic Resource
    Electronic Resource
    Predicting microscopic extrauterine spread of endometrial carcinoma with MRI to support less invasive therapy (2000)
    Springer
    International journal of clinical oncology 5 (2000), S. 158-163 
    Details
    ISSN: 1437-7772
    Keywords: Key words Endometrial carcinoma ; MRI ; Diagnosis ; Minimally invasive therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background. Magnetic resonance imaging (MRI) provides precise staging of endometrial carcinoma. However, we have sometimes experienced patients with microscopic extrauterine extension in whom MRI showed the disease as being limited to the uterus. We studied indirect MRI signs for microscopic extrauterine spread of endometrial carcinoma which outwardly seemed to be limited to within the uterus. Methods. MRI studies and the clinical records of 100 patients with surgically proven endometrial carcinoma were retrospectively reviewed. We evaluated: (1) MRI staging, (2) tumor growing at the orifices of the fallopian tube in the uterine fundus, (3) hydrosalpinx, and (4) ascites, in each MRI study. Results. Surgical specimens showed that 12 of the 100 patients had extrauterine spread, with 1 patient showing both ovarian extension and omental metastasis; there ovarian extension in 3, extension to the fallopian tubes in 3, omental metastasis in 1, and positive peritoneal cytology in 4. Tumor growing at the orifices of the fallopian tubes with deep myometrial invasion showed higher accuracy for predicting microscopic intrauterine spread (82.0%) although it was not significantly different from the accuracy of deep myometrial invasion anywhere within the uterus (75.0%). However, tumor growing at the orifices of the fallopian tubes in a patients with stage Ia disease showed a high negative predictive value (89.7%). Hydrosalpinx had the highest specificity (98.9%) and accuracy (88.0%); however, it did not seem to be practical because it was observed in only 2 patients. Ascites in postmenopausal patients showed higher specificity (93.5%), although it was not considered to be useful in the premenopausal patients. Conclusion. Tumor extension at the orifices of the fallopian tubes in patients with stage Ia disease, and ascites in postmenopausal patients on MRI seemed to be predictive factors for microscopic extrauterine spread.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00012031
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    Paper (German National Licenses)
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