Inflammation of the breast tissue - can be infectious or non-infectious in etiology.
Continuum of disease - Plugged ducts → engorgement → non-infectious inflammation → infectious inflammation → abscess
Infection occurs due to bacterial colonization secondary to areolar inflammation and glandular obstruction
Often occurs during the first few weeks to months postpartum, usually staph species with breast milk as culture medium
Post-menopausal usually due to E. coli, Group D strep, Staph, anaerobes
Usually sub-areolar area due to chronic duct inflammation
40% recurrence rates even after I&D
Neonatal<unk>  management is controversial, but typically requires IV and/or PO antibiotics with good staph coverage
Continuum of disease - Plugged ducts → engorgement → non-infectious inflammation → infectious inflammation → abscess
Infection occurs due to bacterial colonization secondary to areolar inflammation and glandular obstruction
Usually sub-areolar area due to chronic duct inflammation
40% recurrence rates even after I&D
Mastitis
Amniotic fluid embolus
Viral parotitis
Chorioamnionitis
Proctitis
Acute fatty liver of pregnancy
Ectopic pregnancy
Eclampsia