Premature thelarche (bilateral and asymmetrical)

Case contributed by Dr Ammar Haouimi


Painless swelling of the breasts

Patient Data

Age: 16 months
Gender: Female

Bilateral retroareolar heterogeneously hypoechoic area more prominent on the right side (thickness 0.84 cm on the right versus 0.40 cm on the left).

Case Discussion

The majority of cases of idiopathic premature thelarche (i.e. breast development) are related to a slight hyperfunction of the pituitary-ovarian axis. A pelvic ultrasound is required to differentiate an isolated premature thelarche from central precocious puberty by analyzing the size and shape of the uterus and ovaries and rule out an ovarian tumor. It is also important to determine bone age to see whether there is advanced bone maturation.

In most cases, premature thelarche regresses before puberty.

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Case information

rID: 61594
Published: 12th Jul 2018
Last edited: 19th Nov 2019
System: Paediatrics
Inclusion in quiz mode: Included
Institution: Aurès Medical Imaging Center - Batna Algeria

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