Zeilinger G, Deeg K H, Beck J D
Kinderklinik mit Poliklinik, Universität Erlangen-Nürnberg.
Klin Padiatr. 1988 Jul-Aug;200(4):321-3. doi: 10.1055/s-2008-1033728.
The mesoblastic nephroma is the most common renal tumor among newborn and young infants. The tumor is benign, and metastatic growth has only been described in individual cases. Three patients suffering from histologically proven mesoblastic nephroma were examined with an ultrasonic device. Sonographically, the mesoblastic nephroma is manifest as solid and homogeneous tumor of a fine to medium coarse basic texture and of a medium echogenity which may show individual small cystic areas. The tumor cannot be delimited sharply from the healthy renal tissue although uneventful tissue which often caps the kidney is proved. A secure differential diagnosis against a Wilms' tumor is not possible if metastases cannot be detected sonographically or by means of an excretory urogram. The echopattern and the relation of the mesoblastic nephroma to the kidney in combination with an excretory urogram should, however, make the delimitation of a neuroblastoma possible.
中胚叶肾瘤是新生儿和幼儿中最常见的肾肿瘤。该肿瘤为良性，仅在个别病例中有转移生长的描述。对3例经组织学证实为中胚叶肾瘤的患者进行了超声检查。在超声检查中，中胚叶肾瘤表现为实性、均匀的肿瘤，基本质地细腻至中等粗糙，回声中等，可能显示个别小囊性区域。尽管证实有通常覆盖肾脏的正常组织，但肿瘤与健康肾组织无法清晰界定。如果超声检查或排泄性尿路造影未发现转移，则无法与肾母细胞瘤进行可靠的鉴别诊断。然而，中胚叶肾瘤的回声模式及其与肾脏的关系，结合排泄性尿路造影，应能对神经母细胞瘤进行鉴别。
