| http://www.w3.org/ns/prov#value | - Pain is a symptom in more than 33% of patients. (Refer to the PDQ summary on Pain for more information.) For acinic cell carcinoma, staging is likely a better predictor of outcome than histologic grading.[3] In a retrospective review of 90 cases, poor prognostic features included pain or fixation; gross invasion; and microscopic features of desmoplasia, atypia, or increased mitotic activity.
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