Mammary

Question 1

Evans
Complications with Mastectomy
JAVMA 2021

Answer 1

Complications 17%

Increased odds with:
~Increased BW
~Bilateral mastectomy
~No PO antibiotics in chain mastectomy

Decreased odds
~concurrent OVE/OHE

Question 2

Litterine-Kaufman
Mammary glands of dogs
JAVMA 2019

Answer 2

85% non-neoplastic
15% neoplastic

Prevalence of malignancy
less in 4th

Not related to malignancy
~Age
~reproductive status
~quantity of masses

Question 3

Gemignani
Feline mammary adenocarcinoma
JAVMA 2018

Answer 3

Complications
~unilateral 20%
~staged bilateral 36% (sign)
~Single-session bilateral 41% (sign)

Median progression-free
~bilateral 542 d (*sign)
~unilateral 289 d

Factors for progression
~unilateral mastectomy
~tumor ulceration
~LN mets (*sign)
~4th mammary gland

Chemo decreased disease-related deaths