questions 4

Prolactinoma

Author:
Topic updated on 03/06/17 9:34pm

Introduction
  • Benign mass of the pituitary
  • Pathophysiology
    • symptoms result from hypersecretion of prolactin and its inhibitory effects
    • Prolactin cells (aka lactotrophs or mammotrophs) are located in anterior pituitary 
Presentation
  • Symptoms 
    • women
      • amenorrhea
        • secondary to GnRH inhibition by prolactin
      • galactorrhea
      • infertility
        • normally functions to prevent pregnancy when a woman is breast feeding
    • men
      • low libido
      • headache
  • Compression of optic chiasm
    • visual field loss in bitemporal hemianopsia   
Evaluation
  • Serology 
    • ↑ prolactin
    • ↓ FSH, LH
Treatment
  • Pharmacologic
    • bromocriptine or cabergoline
      • dopamine agonists 
      • dopamine normally functions to supress prolactin release


  RATE CONTENT
4.0
AVERAGE 4.0 of 1 RATINGS

Qbank (4 Questions)

TAG
(M1.EC.7) A 29-year-old female visits her gynecologist because of an inability to conceive with her husband. Past medical history reveals that she has been amenorrheic for several months, and she complains of frequent white nipple discharge. Urine tests for beta-HCG are negative. A receptor agonist for which of the following neurotransmitters would be most likely to treat her condition: Topic Review Topic

1. Somatostatin
2. Dopamine
3. Vasopressin
4. Insulin
5. Serotonin

PREFERRED RESPONSE ▶
TAG
(M1.EC.11) A 45-year-old male presents to the hospital complaining of frequent headaches and a decreased libido. During the physical exam, the patient also states that he has recently been experiencing vision problems. The patient is suffering from what type of adenoma? Topic Review Topic

1. Somatotroph
2. Lactotroph
3. Corticotroph
4. Thyrotroph
5. Gonadotroph

PREFERRED RESPONSE ▶
TAG
(M1.EC.75) A 34-year-old woman presents to her OB/GYN with complaints of missing her last 3 periods as well as intermittent spontaneous milky-white nipple discharge bilaterally for the past 3 months. Vital signs are stable and within normal limits. Neurologic examination is without abnormality, including normal visual fields. Serology and MRI of the brain are ordered, with results pending. Which of the following sets of laboratory results would be expected in this patient? Topic Review Topic

1. Decreased prolactin, decreased FSH, decreased LH
2. Decreased prolactin, increased FSH, increased LH
3. Increased prolactin, decreased FSH, increased LH
4. Increased prolactin, decreased FSH, decreased LH
5. Increased prolactin, increased FSH, increased LH

PREFERRED RESPONSE ▶
TAG
(M1.EC.75) A 25-year-old previously healthy woman presents to her PCP reporting cessation of menses for the past 6 months. Previously, her period occurred regularly, every 30 days. She also complains of decreased peripheral vision, most noticeably when she is driving her car. She denies any recent sexual activity and a pregnancy test is negative. Upon further work-up, what other physical findings may be discovered? Topic Review Topic

1. Pregnancy
2. Breast mass
3. Decreased bone density
4. Enlarged thyroid
5. Renal failure

PREFERRED RESPONSE ▶


Evidence & References Show References




Topic Comments

Subscribe status: