Sergey, a 34-year-old physics professor in Russia, learned he had small-cell carcinoma of the maxillary sinus after developing a lump in his neck. The maxillary sinus is an air-filled cavity behind the cheek. Hainan Daily used the pseudonym Sergey when it reported his case in May 2026.
He went through seven courses of chemotherapy and immunotherapy in Russia, according to Hainan Daily. The treatment had failed to control his cancer. The newspaper reported that he also experienced blurred vision and tooth loss during that period.
A patient support group alerted Sergey to boron neutron capture therapy, known as BNCT, at Panboron (Hainan) BNCT Hospital. The hospital in Boao Lecheng could use an imported drug and treatment system under the pilot zone’s special import approval. Sergey arrived in China on May 17, 2026, on his first trip abroad.
On May 20, the team gave him a boron-containing drug and directed a neutron beam at the tumor in his left maxillary sinus. Hainan Daily reported that treatment took about 30 minutes and that he had no obvious adverse reactions in the period it covered. Sergey told the newspaper he felt better afterward. Results from later scans and his long-term outcome remain unknown.
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China Care did not provide the care described. This story does not imply a relationship with the patient or hospital, or that China Care can arrange the same treatment. Individual outcomes do not predict other patients’ results. This is editorial information, not medical advice.