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Medical condition From Wikipedia, the free encyclopedia
A cystic nephroma, also known as multilocular cystic nephroma, mixed epithelial stromal tumour (MEST) and renal epithelial stromal tumour (REST),[1] is a type of rare benign kidney tumour.
Cystic nephroma | |
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Micrograph of a cystic nephroma (left of image). Normal kidney is seen on the right. H&E stain. | |
Specialty | Oncology ![]() |
Cystic nephromas are often asymptomatic. They are typically discovered on medical imaging incidentally (i.e. an incidentaloma).
Cystic nephromas are diagnosed by biopsy or excision. It is important to correctly diagnose them as, radiologically, they may mimic the appearance of a renal cell carcinoma that is cystic.[2]
The characteristics of cystic nephromas are:
Cystic nephromas have an immunostaining pattern like ovarian stroma; they are positive for:
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