BREAST Flashcards
what percentage of breast cancer occurs in men?
<1%
DCIS is a precursor of invasiveness in the ____ breast
ipsilateral
is LCIS a premalignant change?
no
LCIS is a marker for…
increased risk of development of malignancy in either breast
most common breast cancer?
invasive ductal carcinoma
what percent of DCIS progress to invasive ductal carcinoma if left?
50%
how is DCIS treated?
- wide local excision with clear margins and radiotherapy
- masectomy for large lesions or multicentric disease
how many grades of DCIS is there?
1-3 (according to the nuclear atypia and tubule differentiation)
what percentage of breast cancers express hormone receptors?
70%
what does mammogram of DCIS show?
microcalcifications
what is triple assessment?
clinical
radiological
pathological
downside of FNA?
-doesnt differentiate between invasive and non-invasive
uses of core needle biopsy?
-tells you receptor status, differentiates between carcinoma in situ and invasive carcinoma
when is wire guided open excision biopsy used?
when a core needle biopsy fails
What does TNM stand for?
TUMOR
NODES
METASTASIS
Tis
Tumour in situa
T0
No primary tumour located
T1
Tumour < 2cm