carcinoma in situ meaning

• Noun: carcinoma in situ
  1. A cluster of malignant cells that has not yet invaded the deeper epithelial tissue or spread to other parts of the body
     - preinvasive cancer

  Type of: carcinoma

  Encyclopedia: Carcinoma in situ

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  [Medicine]
  A lesion with cytological characteristics associated with invasive carcinoma but the tumor cells are confined to the epithelium of origin,without invasion of the basement membrane.n : carcinoma in the stage of development when the cancer cells are still within their site of origin (as the mouth or uterine cervix) —abbr. CIS
  

• ductal carcinoma in situ:    [Medicine]A noninv ...
• in situ:    adv.see situ; [Arc ...
• in-situ:    Adjective: in-situ ...

Examples

1. lobular carcinoma in situ is seen here
2. the other 3 cases were carcinoma in situ or intraductal carcinoma of breast
3. the patient treated for carcinoma in situ of the cervix must receive adequate follow-up
4. a pathological examination proved the lesion to be carcinoma in situ of the conjunctiva with invasion into cornea
5. the large cells infiltrating into the epidermis represent intraepithelial extension of an underlying ductal carcinoma in situ or invasive ductal carcinoma