Mastitis + Breast Abscess Flashcards Preview

MedED Year 3 Breast + Neck Lumps > Mastitis + Breast Abscess > Flashcards

Flashcards in Mastitis + Breast Abscess Deck (14)
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1

Definition of mastitis?

Inflammation of the breast

2

What can mastitis lead to if left untreated?

Breast abscess

3

What is a breast abscess?

Collection of pus in the breast tissue due to infection

4

What are the types of mastitis and how is it caused?

Lactational or non-lactational
- milk stasis/over-production

5

Epidemiology and risk factors for mastitis?

15-45y/o

Breast-feeding
>30y/o smokers

6

What is the most common pathogen causing mastitis and how does it do so?

Staphylococcus aureus
- enters through cracked skin e.g. nipple (e.g. after microtrauma from breast-feeding)

7

Using SCTF method, what are the features of mastitis?

S - generalised swelling of the breast, inflamed overlying skin (nipple may be cracked)

C - redness, firm

T - very tender and uncomfortable, warm to touch

F - flu-like symptoms: fever, aches, chills, generally unwell

8

How does non-lactational tend to present different to lactational?

With a Hx of previous infections
- with less pronounced systemic upset

9

Investigations if a breast abscess if suspected?

USS
FNA + cytology of aspirate/nipple discharge
FBC + blood cultures (if evidence of systemic infection)

10

Management of breast abscess?

Surgery + IV/oral ABx that act against methicillin-sensitive staph

11

Investigations of mastitis?

Breast US
FNA
Cytology of aspirate/milk/nipple discharge

12

Management of mastitis?

Lactational
- milk removal (breast-feeding)
- ABx + milk removal if severe/systemic symptoms

Non-lactational
- empiric ABx
- if MRSA detected, non-beta lactam antibiotic

Supportive care in all, may include analgesia

13

Complications of breast abscess?

Mammary fistula
Overlying skin may undergo necrosis (rare)

14

Prognosis of breast abscess?

Untreated - breast abscess may discharge onto skin surface

Non-lactational breast abscesses tend to re-occur