Malignant Renal Pelvis Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A primary or metastatic malignant neoplasm that affects the renal pelvis.

**Synonyms:** - Malignant Neoplasm of Renal Pelvis - Malignant Neoplasm of the Renal Pelvis - Malignant Renal Pelvis Tumor - Malignant Tumor of Renal Pelvis - Malignant Tumor of the Renal Pelvis - Malignant neoplasm of unspecified renal pelvis