A Diagnosis Half a World Away
Mariana Santos, a 52-year-old schoolteacher from São Paulo, noticed persistent nasal congestion and left-ear hearing loss in mid-2024. After months of antibiotics for suspected sinusitis, an MRI revealed a nasopharyngeal mass. Biopsy: undifferentiated nasopharyngeal carcinoma, stage III (T3N1M0).
Initial Treatment in Brazil
Concurrent chemoradiation: cisplatin every three weeks plus IMRT, 70 Gy planned over 33 fractions. The first 20 fractions went reasonably. By fraction 22, grade 3 oral mucositis — she could barely swallow water and lost 8 kg in two weeks. Treatment paused at fraction 25. PET/CT showed partial response with metabolically active residual tumor. The local team suggested restarting full radiation — re-irradiating tissue that had already received 53 Gy.
Why Proton Therapy?
Mariana's daughter, a medical resident, discovered that proton beam therapy could deliver a precise boost without re-irradiating damaged surrounding tissue. The Bragg peak property: protons deposit energy at a specific depth and stop, unlike photons which exit through the patient.
Connection Through SSAnkang
SSAnkang arranged a remote tumor board review at a Shanghai proton center within five working days. Imaging, digitized pathology slides, and treatment history were reviewed. Recommendation: 10-fraction proton pencil-beam scanning boost (20 Gy) to the residual tumor, beginning four weeks after mucositis healed.
Journey to Shanghai
São Paulo to Shanghai: 30 hours via Dubai. Case manager met them at Pudong. Next morning: simulation CT and MRI, custom immobilization mask, treatment planning began.
Treatment: Two Calm Weeks
10 sessions, ~20 minutes each (beam delivery under 3 minutes). Side effects remarkably mild: grade 1 skin erythema, mild fatigue — but critically, no recurrence of the severe mucositis. She ate soft food throughout, maintained weight, and walked the Huangpu River evenings with her daughter.
Results
Three-month PET/CT: complete metabolic response. Twelve months: NED (no evidence of disease). Hearing stable, no significant xerostomia, taste nearly fully recovered.
The Cost Perspective
Total Shanghai cost — proton therapy, imaging, consultations, hotel, flights — approximately $52,000 USD. Same course in the US: $150,000–$180,000. Brazil had no proton facility at the time.
Today Mariana is back in her classroom teaching fourth-graders. She wears a small jade pendant from Yu Garden — a reminder of the city that helped save her life.