The best replacement for cyst is tumor.

The best alternatives to cyst are rated as following:
★★★★★  tumor
★★★★  pimple
★★★  boil
★★★  abscess
★★  lipoma
★★  nodule
★★  cancer
★  polyp
★  lymph node
★  fibroid
★  breast cancer
★  mass
★  ovarian cancer
★  herpes
★  wart
★  lump
★  pregnancy
  pregnant
  ingrown hair
  ectopic pregnancy
  skin cancer
  hemangioma
  trophozoite
  zit
  appendicitis
  spermatocele
  lesion
  tumor difference
  tumor ultrasound
  bulla
  tumour
  hernia
  genital wart
  follicle
  endospore
  spore
  boils
  complex cyst
  hemorrhoid
  fibroids
  fibroadenoma
  pseudocyst
  gestational sac
  cancer breast

Your alternative for cyst is not listed? Suggest!
Speaking about cyst, one probably shouldn't forget about debris.

Other search terms related to cyst and their ratings are:
★★★★★ debris
★★★★ ovaries
★★★ ovary
★ meniscal tear
septum
an ovary
tear
You have in mind a companion for cyst and it is not yet here? Propose!



Google Trends

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cyst
tumor
pimple