Abstract: The use of a mitoxantrone preparation in the preparation of a drug for diagnosing and treating breast cancer. Provided is the use of mitoxantrone and/or a pharmaceutically acceptable salt thereof in the preparation of a lymphatic tracer in a disease associated with breast resection. No local or systemic toxic and side effects are seen after local injection of the preparation, suggesting that the preparation has good tolerance, effectiveness and safety, which provides a new treatment idea for thoroughly curing breast cancer in a breast cancer patient.

Abstract: An application of a mitoxantrone preparation in preparation of a drug for diagnosing and treating a disease related to thyroidectomy, and use of mitoxantrone and/or a pharmaceutically acceptable salt thereof in preparation of a lymph tracer for preventing parathyroid gland staining in error, preventing parathyroid gland cutting in error, or reducing the rate of parathyroid gland cutting in error. Local injection of a mitoxantrone hydrochloride injection fluid would not cause parathyroid gland staining in error, and can reduce the rate of parathyroid gland cutting in error, thus protecting parathyroid glands well; moreover, no local or systemic toxic side effect is found after the local injection. The present invention has good tolerability, efficacy, and safety, and provides a new treatment idea in radically curing thyroid diseases thoroughly for patients suffering from diseases related to thyroidectomy.