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Ovarian and Uterine Sonography in Healthy Girls Between 1 and 13 Years Old: Correlation of Findings with Age and Pubertal Status

Liliane Diefenthaeler Herter1, Eliete Golendziner2, José Antônio Monteiro Flores2, Eduardo Becker, Jr.3 and Poli Mara Spritzer1

1 Gynecological Endocrinology Unit, Division of Endocrinology, Hospital de Clínicas de Porto Alegre, Avenida Ramiro Barcelos 2350, 90035-903, Porto Alegre, Brazil.
2 Radiology Service, Hospital da Criança Santo Antônio, Avenida Ceará 1549, 90240-512, Porto Alegre, Brazil.
3 Graduate Program in Clinical Medicine, Universidade Federal do Rio Grande do Sul. Avenida Ramiro Barcelos 2350, 90035-903, Porto Alegre, Brazil.



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  		Fig. 1. —Bar chart shows uterine volume in patients without thelarche (1.8 ± 1.2 cm3) (black bar) and with thelarche (8.1 ± 6.6 cm3) (white bar) (Mann-Whitney test, p < 0.0001).

 


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  		Fig. 2. —Bar chart shows ovarian volume in patients without thelarche (0.5 ± 0.3 cm3) (black bar) and with thelarche (1.7 ± 1.2 cm3) (white bar) (Mann-Whitney test, p < 0.0001). In the group between 9 and 12 years old, a statistically significant difference in ovarian volume was observed when comparing patients with and without thelarche (Mann-Whitney test, p = 0.014).

 


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  		Fig. 3. —Scattergram shows distribution of uterine length according to age and Tanner stage. Lines represent percentiles 2.5, 50, and 97.5. Uterine length curve was best fitted by cubic model. Equation obtained with this mathematic model was uterine length = 2.2434 + 0.4479 age - 0.0789 age2 + 0.0052 age3 (r = 0.604, p < 0.0001).

 


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  		Fig. 4. —Bar chart shows ovarian morphology versus age. Homogeneous (black bar) = absence of visible follicles, paucicystic (checkered bar) = up to five follicles measuring less than 10 mm in diameter, multicystic (white bar) = six or more follicles measuring less than 10 mm in diameter.

 

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