Bluish nodular mammary lesions in prepubertal girls are a challenging diagnosis. Retroareolar cysts are rare in this population, but relatively common among adolescent women. This diagnosis can be suspected clinically and ultimately confirmed by cutaneous ultrasonography, avoiding unnecessary biopsies or complex radiologic studies.

中文翻译：

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青春期前乳晕后囊肿

青春期前女孩的蓝色结节性乳腺病变是一个具有挑战性的诊断。乳晕后囊肿在这一人群中很少见，但在青春期女性中相对常见。这种诊断可以在临床上怀疑并最终通过皮肤超声检查证实，避免不必要的活检或复杂的放射学研究。