海绵肾又称髓质海绵肾（medullanyspongekidney，MSK），发生率约1/5000。为先天性发育异常疾病。肾功能一般无影响。许多患者在40～50岁时因出现肾结石、尿路感染等获诊断。男性多见，一般无家族史。
目的：探讨CT对髓质海绵肾的诊断价值。
Objective: To research the value of ct in the diagnosis of medullary sponge kidney.
目的：提高对髓质海绵肾x线表现的认识。
Objective: To enhance the understanding of X-ray manifestations of medullary sponge kidney (MSK).
目的分析海绵肾的声像图表现特点，提高对该病的认识。
Objective To analyze the ultrasonic manifestation and charion and characteristic of the disease.
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