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Galactorrhea Discharge.pdf

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10-2 GALACTORRHEA/DISCHARGE<br />

Rationale<br />

Although noticeable breast secretions are normal in >50 % of reproductive age women, spontaneous persistent galactorrhea<br />

may reflect underlying disease and requires investigation.<br />

Causal Conditions<br />

1. True galactorrhea (fat droplets present)<br />

a. Idiopathic (most common cause - 1/3)<br />

b. Hyperprolactinemia<br />

i. Physiologic (pregnancy, breast stimulation, stress)<br />

ii. Autonomous prolactin production<br />

A. Pituitary tumors (micro or macro-adenoma)<br />

B. Ectopic production of prolactin (bronchogenic or renal cell cancer)<br />

iii. Enhanced prolactin-release/Decreased clearance<br />

A. Hypothyroidism, chronic renal failure<br />

B. Steroid hormones (oral contraceptive pills)<br />

C. Sucking reflex simulators (post-thoracotomy, burns, herpes zoster)<br />

iv. Failure to inhibit release of prolactin (drugs/disease inhibiting dopamine)<br />

A. Pituitary stalk section or compression by mass lesion<br />

B. Drugs (phenothiazines, methyldopa, opiates)<br />

2. Abnormal breast discharge (usually Uni ductal, bloody or serosanguineous) - breast neoplasm, benign or malignant<br />

Key Objective(s)<br />

✥<br />

✥<br />

Differentiate between galactorrhea and breast discharge.<br />

Differentiate physiological from pathological galactorrhea.<br />

Objectives<br />

✥<br />

✥<br />

✥<br />

Through efficient, focused, data gathering:<br />

➢ Determine whether discharge is expressed or spontaneous, unilateral or bilateral, color of discharge, medication<br />

use, which patients have menstrual irregularities, infertility, headaches or visual changes, symptoms of<br />

hypothyroidism.<br />

➢ Examine breasts for skin lesions, unilateral/Uni ductal discharge, breast mass.<br />

List and interpret critical clinical and laboratory findings which are key in the processes of exclusion, differentiation,<br />

and diagnosis:<br />

➢ If nipple discharge is bloody, order cytology.<br />

➢ Select and interpret laboratory and diagnostic imaging in a patient with galactorrhea.<br />

Conduct an effective plan of management for a patient with breast discharge:<br />

➢ Determine which patients likely have a breast neoplasm.<br />

➢ Outline the role of dopamine agonists (e.g., cabergoline, bromocriptine) in the management of patients with<br />

Page 52<br />

© 2005 The Medical Council of Canada<br />

Generated Friday, 29 April 2005


GALACTORRHEA/DISCHARGE<br />

hyperprolactinemia and galactorrhea.<br />

➢ Counsel/educate patients with galactorrhea about how to minimize it.<br />

➢ Select patients in need of specialized care.<br />

Page 53<br />

© 2005 The Medical Council of Canada<br />

Generated Friday, 29 April 2005

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