肝细胞及肾近曲小管上皮细胞肿胀、颗粒变性或透明变性，局部细胞溶解，出现坏死病灶；
The cells of the liver and proximal convoluted tubules of kidney showed swell and granular degeneration or hyaline degeneration, in which some cells dissolved and necrotic foci were observed.
结论：重叠综合征继发横纹肌溶解症临床罕见，当出现急性肾功能衰竭时，与系统性硬化症出现急性肾危象不易鉴别，容易漏诊。
Conclusion: Overlap syndrome associated with rhabdomyolysis is rare, and systemic sclerosis could also have renal crisis, which could lead to miss diagnosis of rhabdomyolysis.
结论：重叠综合征继发横纹肌溶解症临床罕见，当出现急性肾功能衰竭时，与系统性硬化症出现急性肾危象不易鉴别，容易漏诊。
Conclusion: Overlap syndrome associated with rhabdomyolysis is rare, and systemic sclerosis could also have renal crisis, which could lead to miss diagnosis of rhabdomyolysis.
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