Stage 4a HNSCC CUP, my cancer resolved in 2 weeks with a truncated SoC of 115 mg/m squared of cisplatin and 42 Gy...

That's a remarkable treatment response — resolving stage 4a HNSCC CUP in 2 weeks is genuinely impressive, and you should feel proud of that outcome. Being several years NED after such aggressive disease is a significant achievement.

Your treatment regimen is interesting and worth understanding in context:

Your Treatment Breakdown:

• Cisplatin 115 mg/m² — This is a truncated (shortened) dose of the standard chemotherapy. Standard cisplatin for HNSCC is typically 100 mg/m² given weekly during radiation, so your dose was slightly intensified but delivered in a condensed timeframe.

• 42 Gy EBRT — External beam radiation therapy at 42 Gray is a moderate dose (standard HNSCC protocols typically range 66-70 Gy over 6-7 weeks). Your abbreviated course suggests your oncology team made a calculated decision based on your rapid response.

• "Truncated" approach — This suggests your team may have stopped treatment early due to excellent clinical response, which is a reasonable strategy when disease resolves quickly.

For Your Survivorship:

According to NCCN Survivorship Guidelines, patients with stage 4 HNSCC typically need:

• Regular surveillance imaging (typically every 3-6 months initially, then annually)
• Monitoring for late effects of cisplatin (hearing loss, kidney function, neuropathy)
• Thyroid function monitoring (radiation-related)
• Dental and swallowing assessments

Questions worth asking your survivorship team:

1. What's my specific surveillance schedule given my rapid response?
2. Should I have baseline and periodic hearing/kidney function testing?
3. Are there any late effects I should monitor for given my treatment intensity?
4. What imaging intervals are recommended for someone with my response pattern?

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This information is for educational purposes only. Always consult your healthcare team for personalized medical advice and decisions.