Yeh H C, Mitty H A, Wolf B S
Radiology. 1977 Sep;124(3):799-801. doi: 10.1148/124.3.799.
Gray scale B-scans in renal sinus lipomatosis show a variety of features which must be differentiated from clinically significant pathological processes. Normal kidneys show dense homogeneous central echoes. In renal sinus lipomatosis, however, the central echoes are divided and become more sparse (Type I), interspersed with small relatively echo-free areas (Type II), or outline a single relatively echo-free area resembling a mass (Type III). In contrast to similar features in hydronephrosis or multiple cysts, the relatively echo-free areas in lipomatosis are ill-defined and do present several weak internal echoes.
肾窦脂肪增多症的灰阶B超扫描显示出多种特征，这些特征必须与具有临床意义的病理过程相鉴别。正常肾脏显示密集均匀的中央回声。然而，在肾窦脂肪增多症中，中央回声被分隔且变得更加稀疏（I型），散布着小的相对无回声区（II型），或勾勒出一个类似肿块的单一相对无回声区（III型）。与肾积水或多发性囊肿的类似特征不同，脂肪增多症中的相对无回声区边界不清，且确实存在一些微弱的内部回声。
