Mitral annulus calcification is a common degenerative disorder in the elderly, being more prevalent in patients with renal failure and in women. Caseous calcification is a rare variant characterized by a putty-like material surrounded by a calcified envelope. This disease is considerated a benign lesion; however, due to its active chronic inflammatory process, calcification can expand to adjacent structures.

中文翻译：

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二尖瓣环钙化引起的心肌结晶

二尖瓣环钙化是老年人常见的变性疾病，在肾衰竭患者和女性中更为普遍。干酪钙化是一种罕见的变体，其特征是油灰状材料被钙化包膜包围。这种疾病被认为是良性病变。然而，由于其活跃的慢性炎症过程，钙化可扩展至邻近结构。