肾血管平滑肌脂肪瘤(附四例报道)

肾血管平滑肌脂肪瘤是一种相当少见的肾脏良性肿瘤,占我院157例肾肿瘤的2.5％。术前正确诊断困难,常笼统诊断为肾肿瘤。本病系肾实质间叶组织肿瘤,因含较多脂肪组织,故X线平片肾肿块区有不规则斑片状密度减低透亮区。多发生于肾小管,肾盂及肾盏旁,生长缓慢,于肾盂造影时,可见压迫肾盂肾盏移位、分离、变形,无侵蚀破坏,肾盏数目不减少为其特征。临床表现腹痛、腰痛、腹块、血尿及胄肠道症状,约50％伴结节硬化症。本文就我院已经手术,病理证买的四例病人(不伴结节硬化症),对其临床、病理及X线特征加以讨论,有助于诊断和鉴别诊断。

Renal Angiomyolipoma—A Report of 4 Cases

Renal angiomyolipoma is a rare renal benign tumor, which comprises about 2.5％ of 157 cases of renal tumors in our hospital. The preoperative diagnosis is more difficult, and it is generally diagnosed as renal tumor. This disease is renal mesenchymal tumor and because of more fat tissues, it can show a characteristic irregular patchy radiolucent area in the renal mass in the x-ray plain film. The tumor often occurs near the renal tubule, calyx and pelvis, and it grows slowly. Its pyelography shows that the calyx aud pelvis are compressed to displace, separate and deform, but not destroied. Clinically, the patient often suffers from the pain in the abdomen or waist, abdomenal mass, hematuria and some trouble in thegastrointestinal tract, with tuberous sclerosis in 50％ of patients. In this paper, 4 cases of renal angiomyolipoma were confirmed by operation and pathological examination, with no tuberous sclerosis. The clinical, pathological and radiological features of the disease are to help in the radiographic and differential diagnosis of angiomyolipoma.