Management of Duct Ectasia and Intraductal Papilloma

Diagnostic Characteristics

Duct ectasia presents with non-bloody, often green or yellow discharge from multiple duct orifices, usually bilateral and involves multiple ducts, accounting for 17-36% of pathologic nipple discharge cases 1
Intraductal papilloma presents with spontaneous, unilateral, and often bloody discharge from a single duct orifice, and is the most common cause of pathologic nipple discharge (35-48% of cases) 1

Surgical intervention for duct ectasia is reserved for cases where malignancy cannot be excluded, or when imaging findings are discordant with clinical presentation 1
Complete surgical excision is the standard management for intraductal papillomas diagnosed at biopsy, with surgical approaches including microdochectomy or major duct excision for multiple papillomas 2
Vacuum-assisted core needle biopsy may be both diagnostic and therapeutic in select cases, with cessation of nipple discharge in 90-97.2% of patients, but should not replace surgical duct excision due to high underestimation rate and false-negative rate 2

Nipple discharge in males is rare but has a higher association with underlying malignancy (57% vs 16% in females), and more aggressive evaluation and management is warranted for male patients with nipple discharge 1
Image-guided core needle biopsy is useful for obtaining tissue diagnosis in male patients 2
Risk for malignancy increases with age: 3% in patients ≤40 years, 10% in patients 40-60 years, and 32% in patients >60 years, and age should be factored into management decisions, with lower threshold for surgical intervention in older patients 1