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[Mediastinal teratomas. A clinical and pathologic study of 3 pediatric cases]
Insights
Mediastinal teratomas in children can be mature or immature. While mature cystic teratomas have favorable outcomes after surgical excision, immature teratomas can infiltrate surrounding tissues, leading to poor prognoses.
Area of Science:
- Pediatric Oncology
- Thoracic Surgery
- Pathology
Background:
- Mediastinal teratomas are germ cell tumors that can occur in children.
- These tumors are classified as mature or immature based on histological findings.
- The anterior mediastinum is a common location for these pediatric neoplasms.
Observation:
- Three pediatric cases of mediastinal teratomas were analyzed.
- Two cases involved mature cystic teratomas in female patients (18 months and 12 years old).
- One case involved an immature mediastinal teratoma in a 12-year-old male.
Findings:
- Mature cystic teratomas were completely excised with favorable outcomes.
- The immature teratoma infiltrated lung parenchyma and great vessels, necessitating only a biopsy.
- The patient with the immature teratoma died one month post-procedure.
Implications:
- Histological type is a critical prognostic factor for mediastinal teratomas in children.
- Complete surgical excision is curative for mature cystic teratomas.
- Immature mediastinal teratomas require aggressive management due to their infiltrative potential and poor prognosis.
Abstract:
Mediastinal teratomas are reported in three children. Two cases: an eighteen-month-old female and a twelve-years-old female, were diagnosed of mature cystic teratoma. Third patient was a twelve-year-old male with an immature mediastinal teratoma. All tumors were located in anterior mediastinum. Mediastinal mature cystic teratomas were completely excised and their evolution were favourable. However, immature mediastinal teratoma infiltrated lung parenchyma and great blood vessels; in this case only a biopsy was performed. This patient died a month after surgical procedure. Clinical, radiological and pathological findings of mediastinal teratomas in childhood are commented. Prognostic factors and evolution of different histological types of mediastinal teratomas are evaluated.