Puberty And Menstrual Disorders 2 Flashcards
Puberty is considered delayed when 1 of 4 things happen?
Secondary sex features don’t appear by 13
Thelarche not occurring by 14
No menarche by 15
Menses not happening 5 years after Thelarche started
How do we define secondary amenorrhea?
Patient with prior menses has stopped for 6 months or more
Patient presents with primary amenorrhea, after doing physical exam and taking history, what is the first question to ask?
Does the patient have secondary sex features?
If the answer is no, what do I do and what are the results I am looking for?
Measure the FSH and LH
If the FSH and LH are less than 5, then it is hypogonadotropic hypogonadism
If the FSH is greater than 20 and the LH is greater than 40, then it is hypergonadotropic hypogonadism
What would I do after figuring out its hyper? What would be my two results I am looking for?
Do a Karyotype analysis.
45 XO is tuner
46 XX premature ovarian failure
Once we know it is hypo hypo, what test can we do? Also, what are 5 causes of hypo and which one is most common?k
MRI of Brain Tumors or hypothalamus or pituitary Anorexia Kallmann Too much prolactin Physiologic delay, most common
What is the problem in kallmann syndrome?
Mutation in the KAL gene that prevents the migration of GnRH neurons into the hypothalamus
What is one of the reasons we karyotype when we have hyper hypo?
To rule out there being a Y chromosome.
What is the most common form of female gonadal dysgensis? What is 1 unique symptom/sign with this syndrome?
Turners
Coarctation of the aorta
Let’s go back to our patient presenting with primary amenorrhea and you asked the question, are there secondary sex features and the answer is yes, what will you do next?
US the uterus
Let’s say it is absent or abnormal, what do you do and what are the two results you are looking for?
Karyotype
46 XX is Müllerian agenesis
46 XY androgen insensitivity syndrome
What is the uterus is normal, what will you do next? What are the two results you are looking for?
Check if there is outflow tract obstruction
If no, evaluate for secondary amenorrhea
If yes, imperforate hymen or transverse vaginal septum
What is going on with androgen insensitivity syndrome? What does the female still have that is normal?
Testes in the ab wall that is secreting anti Müllerian Hormones so no uterus.
Male levels of testosterone with a defect in the androgen receptor.
Still have external female genitalia (no hair) and breast development
How do we treat androgen insensitivity syndrome?
Take out gonads after puberty to prevent neoplasms
What is normal and what is absent in mullerian agenesis?
Normal secondary features, external genitalia, female testosterone level, ovaries and Karyotype.
Absent uterus, upper vagina and commonly renal abnormalities.