Renal cell carcinoma and renal angiomyolipoma misd

ncycgdxhl · Wysłany: Czw 0:03, 10 Mar 2011

,[link widoczny dla zalogowanych]
Renal cell carcinoma and renal angiomyolipoma misdiagnosis each other

Cases of RCC intraoperative frozen section pathology were reported RAML, 1 underwent tumor enucleation ,[link widoczny dla zalogowanych], 2 cases simple nephrectomy , the pathological diagnosis of RCC. 5 cases RAML intraoperative frozen section pathology were reported as RCC and the line radical nephrectomy , the pathological diagnosis of RAML. 2 to discuss the causes of misdiagnosis 2.1 fat tissue imaging is RAML important basis for imaging diagnosis . RAML when the strong echo ultrasound , CT is negative ; the RCC was strongly echo ultrasound , CT is less than the normal kidney tissue, a time when , under normal circumstances , the two is not difficult to identify. 5 patients in this group as the sample profile RAML eye surgery were not found in the exact fat mass ,[link widoczny dla zalogowanych], fat content is low considering the tumor imaging in this group the main reason for misdiagnosis of tumor hemorrhage imaging of fat will cover up the signs . Kong Xiangtian ... and so the distribution of fat found in RAML was fat interspersed in the smooth muscle bundles and blood vessels and fat tissue mass was distributed in two forms , the former is less fat and scattered , the image diagnosis difficult. J Henderson reported 6 cases of RCC such as CT images showed the fatty tissue containing the tumor , 2 cases were confirmed as invasive growth of tumor wrapped perirenal fat , 4 cases with calcification. Analysis of adipose tissue may be caused by tumor invasion of perinephric may be part of their non-epithelial stromal metaplasia of trabecular bone and bone marrow elements. In addition , RCC often be seen within the calcified matrix , but extremely rare in the RAML E. Thus , CT examination revealed fatty tissue of the kidney mass is RAML the possibility of large ,[link widoczny dla zalogowanych], should be considered if accompanied by calcification RCC possible. 2.2 ① RAML frozen section in the main causes of misdiagnosis is a mature adipose tissue , but sometimes the mother may have fat cells , expressed as the nuclear center , nuclear or mitotic increase , and the frozen section is difficult to distinguish clear cell swelling ; and RCC tissues There are a large number of blood vessels is difficult and RAML distinction. ② the smooth muscle as the main component of the RAML, such as slice drawn to the fat content does not take a nuclear or smooth muscle increased and mitotic chromatin , etc. , often misdiagnosed as RCC. ③ inexperienced pathologist read the piece ,[link widoczny dla zalogowanych], sliced fat cells found in the diagnosis of RAML.