insidious onset

基本解释

Hepatocellular carcinoma is also a high malignancy with insidious onset, invasive fast-growing, high recurrence rate and fatality.
肝細胞肝癌具有起病隱匿，惡性程度高，侵襲性生長快速，治療後易複發，病死率高等特點。
All patients had insidious onset and slow progression of behavioral and cognitive dysfunction accompanied by daytime somnolence and headache.
所有患者均起病隱匿，其行爲和認知功能障礙的進展速度也較爲緩慢，竝伴有日間嗜睡和頭痛症狀。
Because of its insidious onset, the diagnosis of this disease was usually delayed rendening treatment difficult.
此病起病隱匿，診斷時往往已是晚期，治療睏難。

Its onset is rapid and insidious, and it can be fatal within 24 to 48 hours of the first non-specific symptoms.
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