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Zorluk: OrtaNormal Growth and Development

A 14-year-old adolescent female is brought to the office by her mother because she has not yet had her first menstrual period. The mother experienced menarche at age 12 and is highly anxious that her daughter may have an underlying reproductive or genetic disorder. The patient feels well, performs excellently in high school, and participates in recreational swimming two days a week. She reports a noticeable growth spurt over the past 18 months. Her medical history is unremarkable, and she takes no medications. On physical examination, her height is at the 65th percentile and weight is at the 55th percentile. Breast examination reveals projection of the areola and papilla to form a secondary mound above the level of the breast. Coarse, curly pubic hair covers the mons pubis but does not extend to the medial thighs. External genitalia appear normal with a patent vaginal opening. Which of the following is the most appropriate next step in management?

  1. Reassurance and continued observationCevap
  2. B
    Measurement of serum follicle-stimulating hormone and luteinizing hormone
  3. C
    Pelvic ultrasonography
  4. D
    Karyotype analysis
  5. E
    Administration of a progestin challenge

Cevap

Reassurance and continued observation
The correct answer is reassurance and continued observation. This patient is undergoing normal female pubertal development. She has Tanner stage 4 breast development (secondary mound of areola/papilla) and Tanner stage 4 pubic hair (adult-type but not fully spread to medial thighs). Furthermore, she recently experienced a growth spurt, which corresponds with peak height velocity, an event that typically precedes menarche. Primary amenorrhea is defined as the absence of menarche by age 13 years in the absence of secondary sexual characteristics, or by age 15 years in the presence of normal secondary sexual characteristics. Because this patient is 14 years old and has developed appropriate secondary sexual characteristics, she does not have primary amenorrhea. Any diagnostic workup is premature, and reassurance is the most appropriate next step.

Adım Adım Çözüm

1
Analyze the patient's age and pubertal development signs.
The patient is a 14-year-old female with Tanner stage 4 breast and pubic hair development, indicated by the secondary breast mound and adult-type pubic hair that has not yet spread to the medial thighs.
Accurate Tanner staging is required to determine the expected timeline for menarche.
2
Recall the diagnostic thresholds for primary amenorrhea.
Primary amenorrhea is defined as the absence of menarche by age 13 in girls with no secondary sexual characteristics, or by age 15 in girls with normal secondary sexual characteristics.
Knowing the strict chronological cutoffs distinguishes normal physiological variation from pathological delay.
3
Apply the criteria to the current patient.
Because she is 14 years old and has normal secondary sexual characteristics, she does not meet the criteria for primary amenorrhea.
Diagnostic testing is not warranted for normal physiological growth and development.
4
Determine the appropriate management.
The correct action is to reassure the mother and patient and continue routine observation.
Menarche typically occurs 2 to 2.5 years after thelarche (breast budding), and expecting it to occur before age 15 is appropriate.

Anahtar Kavram

Evaluation threshold for primary amenorrhea
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Konular

Normal Growth and Development

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