Abstract
Ovarian teratoma is the most common ovarian tumor in children with an overall incidence of 2.6 cases per 100,000 girls per year. Diagnosis and management are challenging due to its nonspecific presentation, malignancy determination, and need to conserve fertility. A previously healthy 5-month-old female infant presented with fever, abdominal distension, and nonbilious emesis, and an 8.2 × 6.8 × 6.1-centimeter pelvic mass originating from the left adnexa was found on imaging. Due to concern for malignancy and torsion, exploratory laparotomy and ovarian-sparing surgery (OSS) with resection of the mass were performed. Histology showed a grade 1 teratoma. This case illustrates a challenging diagnosis and its symptom overlap with other etiologies in infants. The keys to diagnosing and managing this entity are including ovarian pathology in the differential diagnosis and performing OSS whenever possible. Furthermore, ultrasound follow-up is needed to monitor for ipsilateral and contralateral ovarian tumors later in life.
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