Case report: renal haemangioma: a diagnostic challenge.

Department of Radiology, Southampton University Hospitals NHS Trust, Tremona Road, Southampton, Hampshire SO16 6YD, UK.
Clinical Radiology (Impact Factor: 1.66). 05/2006; 61(4):370-3. DOI: 10.1016/j.crad.2005.10.016
Source: PubMed
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    ABSTRACT: General features. Haemangiomas are benign vascular tumours. They can regress spontaneously as a result of fibrosclerosis, suggesting a conservative approach wherever possible. Asymptomatic haemangiomas do not require treatment. Renal haemangioma. In all, 198 cases have been reported. The lesion is usually solitary and unilateral and occurs most often in the pyramid, and in the mucosa or subepithelial tissue of the pelvis. In some cases a tentative diagnosis of haemangioma has been made by means of selective renal angiography and pre- or per-operative renoscopy. Partial nephrectomy is recommended in cases of minor haemangioma. Ureteric haemangioma. Six cases have been described. When haemangioma is suspected a conservative operation is recommended. Bladder haemangioma. A total of 106 cases have been reported. Many of the tumours had the characteristics of an iceberg, with considerable extravesical extension making endoscopic management less suitable because of the possibility of massive haemorrhage or recurrence. Consequently, many authors prefer local excision. In the case of endoscopic treatment the patient should be prepared for open surgery. Urethral haemangioma. Twenty cases have been described. The lesions often extend further than is immediately apparent. Endoscopic management is recommended for small lesions and, in the case of more extensive lesions, open exploration is advised followed by appropriate urethral reconstruction.
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    ABSTRACT: Tumors of the renal medulla cover a wide spectrum, with characteristic histomorphology and variable biologic profiles. Renal medullary tumors can be categorized into benign and malignant neoplasms based on histologic features and clinico-biologic behavior. They can be further classified into pediatric and adult tumors based on the patient age group. When small, renal medullary tumors may be differentiated from the more common renal adenocarcinomas by their central location and certain demographic characteristics. Although most large malignant medullary tumors demonstrate imaging findings that are indistinguishable from those of other renal malignancies, some tumors demonstrate imaging findings that may suggest a specific diagnosis.
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