The parotid glands may appear normal in the early stages. Multiple small cysts in both parotids can be seen in the intermediate form of the disease.
在早期，腮腺可能表现为正常，在病变的中间过度期可能会出现双侧腮腺多发的小囊状影。
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Result: Representation of punctate, sphere, cavity and destruction were seen in the parotids involvement by MR, so did few normal main duct and intraglandular ducts.