Xanthoma - 黃色瘤 https://en.wikipedia.org/wiki/Xanthoma
黃色瘤 (Xanthoma) 是一種富含膽固醇的黃色沉積物,可能在各種疾病狀態下出現在身體的任何部位。它屬於脂質沉積症的皮膚表現,脂質聚集於皮膚內的大型泡沫細胞中,與高血脂症相關。

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References Xanthoma 32965912 
NIH
Xanthomas 是體內的脂肪沉積物。雖然它們通常是良性的,但常作為全身性疾病的重要指標。並非所有膽固醇或血脂水平較高的人都會出現黃瘤,但發現黃瘤可能是這些代謝異常的關鍵徵象。
Xanthomas are localized lipid deposits within an organ system. Although innately benign, they are often an important visible sign of systemic diseases. Not all patients with hyperlipidemia or hypercholesterolemia develop xanthomas. However, the presence of xanthomatous lesions can serve as a unique and important clinical indicator of these metabolic states.