Primary malignant mediastinal germ cell tumors: A single institutional experience

Area of Science:

• Oncology
• Thoracic Surgery
• Pathology

Background:

• Primary mediastinal malignant germ cell tumours (PMMGCT) are exceptionally rare neoplasms.
• Current management strategies for PMMGCT are often hindered by a lack of established guidelines and a generally poor prognosis.

Purpose of the Study:

• To retrospectively analyze the clinical and pathological characteristics of PMMGCT cases.
• To evaluate the effectiveness of multimodality treatment approaches and patient follow-up for PMMGCT.

Main Methods:

• Retrospective evaluation of all PMMGCT cases diagnosed and treated between 2014 and 2018.
• Analysis included clinico-pathological features, treatment modalities, and follow-up data.

Main Results:

• Five PMMGCT cases were identified: three seminomas and two non-seminomas (one yolk-sac, one mixed).
• Most cases were locally advanced; one presented with supraclavicular lymph node metastasis.
• Treatment involved platinum-based chemotherapy, with surgery for non-seminomas and radiotherapy for an inoperable seminoma case.

Conclusions:

• PMMGCT necessitates a multidisciplinary approach for optimal diagnosis and management.
• Tumor site, extension, histopathology, stage, and serum markers are vital for prognostication and treatment planning.