title: Management of mastitis and abscessation of mammary glands secondary to fibroadenomatous hyperplasia in a primiparturient cat.
abstract: METHODS
  A 1-year-old sexually intact female domestic shorthair cat was evaluated because of an 8-week history of pronounced mammary gland hyperplasia that had progressed to mastitis and abscessation of the mammary glands since parturition 7 days earlier. The cat was anorectic, was febrile, and had signs of discomfort. Its kittens were weak and appeared to have difficulty nursing.
  
  
  RESULTS
  Physical examination revealed pyrexia, mastitis with abscessation in the 6 caudal mammary glands, skin ulceration over the nipples, and areas of skin necrosis over the abscessed mammary glands. A CBC revealed nonregenerative anemia and leukocytosis with a left shift (2.160 x 10(9) band cells/L) and toxic changes. Mastitis and incipient septicemia were considered the most likely causes. The history of mammary gland hyperplasia since the second week of pregnancy suggested a diagnosis of fibroadenomatous hyperplasia that predisposed the cat to subsequent mastitis.
  
  
  RESULTS
  Surgical drainage of the abscessed mammary glands, debridement of necrotic skin, and placement of a Penrose drain resulted in rapid improvement in clinical status. Broad-spectrum antimicrobial treatment (amoxicillin-clavulanic acid) was prescribed, and the cat was discharged from the hospital. Mastitis and fibroadenomatous mammary gland hyperplasia resolved rapidly afterward.
  
  
  CONCLUSIONS
  Management of abscessed mammary glands through surgical drainage and drain placement is an option for treatment of cats with complications of fibroadenomatous hyperplasia. In the cat of this report, the treatment approach resulted in rapid resolution of mastitis, was less invasive than mastectomy, and avoided the potential complications of treatment with a progesterone-receptor antagonist.
authors.affiliation: Vancouver Animal Emergency Clinic, 1590 W. 4th Avenue, Vancouver, British Columbia, Canada. uburstyn@gmail.com
authors.forename: Uri
authors.initials: U
authors.lastname: Burstyn
mesh_terms: D000038:Abscess / Q000188:drug therapy / Q000601:surgery / Q000662:veterinary*; D000818:Animals; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D002371:Cat Diseases / Q000188:drug therapy* / Q000601:surgery; D002415:Cats; D005260:Female; D018226:Fibroadenoma / Q000209:etiology / Q000601:surgery / Q000662:veterinary*; D008413:Mastitis / Q000188:drug therapy / Q000601:surgery / Q000662:veterinary*; D018805:Sepsis / Q000209:etiology / Q000662:veterinary
chemical_list: D000900:Anti-Bacterial Agents