QuestionSBA
QuestionChoice
Tanner stage 1 describes the prepubertal stage, with testicular volume <1.5ml, and no pubic hair. By contrast, this patient currently fits Tanner stage 2.
10025431
b
Stage 1
QuestionChoice
This is the correct answer. Tanner stage 2 describes penis growth in length only, testicular volume 1.5-6ml, and some downy hair at the base of the penis in males. This therefore fits the clinical vignette.
10025430
a
Stage 2
QuestionChoice
Tanner stage 4 describes the development of the glans penis, darkening of the scrotal skin, testicular volume 12-20ml, and adult pubic hair, not spreading to the thighs. By contrast, this patient currently fits Tanner stage 2.
10025433
d
Stage 4
QuestionChoice
Tanner stage 3 describes penis growth further in length as well as circumference, testicular volume 6-12ml, and coarser, plus thicker and curlier hair that spreads laterally to cover more of the pubis. By contrast, this patient currently fits Tanner stage 2.
10025432
c
Stage 3
QuestionChoice
Tanner stage 5 describes adult genitalia, testicular volume >20ml, and adult pubic hair spreading to the medial thighs. By contrast, this patient currently fits Tanner stage 2.
10025434
e
Stage 5
Concept
Chapter
2693
4031
Tanner staging of puberty
Topic
153
Paediatrics
17484
A 12 year old male presents to his GP with concerns about delayed puberty.

On examination, he has testicular volume of 6 mL bilaterally, and his pubic hair is limited to a few fine, straight hairs at the base of the penis.

Based on Tanner staging, which of the following best represents this patient's current stage of pubertal development?
a