Ovarian dysgerminoma in a prepubertal female with tumour-confined mosaic monosomy X: A rare case report and cytogenetic insights

Key Points

• Dysgerminoma was observed in a prepubertal female, highlighting the rare occurrence of this tumor type at a young age.
• Cytogenetic analysis revealed tumor-confined mosaic monosomy X, which is significant in understanding the genetic background of these tumors.
• The identification of mosaic monosomy X may inform future approaches to diagnose and manage similar cases in young patients.
• Recognizing such rare cases emphasizes the need for detailed cytogenetic evaluation in pediatric tumors.