Cancer is a complex disease. It can spread from one part of the body to another. This is called metastasis. But sometimes, cancer takes a strange turn. It can move from one tumor to another. This is called tumor-to-tumor metastasis (TTM). It's very rare. Only a handful of cases have been documented. One of these cases involved clear cell renal cell carcinoma (ccRCC)....

Managing meningiomas tied to neurofibromatosis type 2 (NF2) isn't one-size-fits-all. These intracranial tumors can pop up one at a time or in groups, making each case unique. One treatment option is stereotactic radiosurgery (SRS), a high-precision radiation technique. A team of experts dug into their own hospital's experience with SRS for NF2-associated meningiomas....