Late recurrence of a seminoma

Area of Science:

• Oncology
• Medical Case Reports
• Germ Cell Tumors

Background:

• Extragonadal mediastinal seminomas are rare germ cell tumors.
• Long-term remission is achievable with chemotherapy and surgery.
• Recurrence of germ cell neoplasms can occur after extended disease-free intervals.

Observation:

• A patient achieved remission for 19 years after initial treatment for extragonadal mediastinal seminoma with actinomycin D and chlorambucil.
• The patient experienced a recurrence involving a single supraclavicular lymph node.
• The recurrence was treated with surgical excision and combination chemotherapy.

Findings:

• The patient remained disease-free for 3 years following treatment for the recurrence.
• This case represents the longest reported interval to recurrence for a germ cell neoplasm, spanning nearly two decades.
• Combination chemotherapy with cis-platinum, vinblastine, and bleomycin was effective in managing the late recurrence.

Implications:

• This case highlights the possibility of very late recurrences in germ cell neoplasms.
• It underscores the importance of long-term surveillance for patients treated for these rare tumors.
• The successful management of this late recurrence suggests that even after prolonged remission, effective treatment options are available.