The best replacement for metastasis is metastases.

The best alternatives to metastasis are rated as following:
★★★★★  metastases
★  invasion
★  recurrence
★  multiple myeloma
★  myeloma
  metastasis
  metastasize
  metasize
  metastatic
  hemangioma
  meningioma

Your alternative for metastasis is not listed? Suggest!
Speaking about metastasis, one probably shouldn't forget about prostate cancer.

Other search terms related to metastasis and their ratings are:
★★★★★ prostate cancer
★★★ ovarian cancer
★★★ kidney cancer
★★★ colon cancer
★★ lung cancer
★★ low psa
★★ breast cancer
★★ primary tumor
★★ pancreatic cancer
★ lymph node involvement
★ bladder cancer
★ known diagnosis of lung cancer
★ esophageal cancer
basal cell carcinoma
small cell lung cancer
You have in mind a companion for metastasis and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of metastasis in all years. Click on graph for more.
metastasis
metastases
invasion