A 72-year-old man with a history of polycythemia vera (positive for JAK2 V617F) presented with several months of functional decline and weight loss. An 18F-fluorodeoxyglucose positron emission tomography/computed tomography showed soft tissue infiltrates and sclerosis of the perirenal spaces with fluorodeoxyglucose uptake. What is your diagnosis?

中文翻译：

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毛茸茸的肾脏和硬化的骨病变


一名 72 岁男性，有真性红细胞增多症病史 （JAK2 V617F 阳性） 出现数月的功能下降和体重减轻。18F-氟脱氧葡萄糖正电子发射断层扫描/计算机断层扫描显示氟脱氧葡萄糖摄取伴肾周间隙软组织浸润和硬化。您的诊断结果是什么？