(IMAGE)

Fundação de Amparo à Pesquisa do Estado de São Paulo

Caption

Engineer Marcos Vinícius Sampaio Vieira (in the blue shirt) with his wife and children in a photo taken last June: Five years after being treated for medullary carcinoma, molecular tests revealed that Marcos carried an inherited mutation in the RET gene. This finding led to the decision to have his young children undergo preventive surgery to completely remove their thyroids, which prevented cancer from developing in the next generation 

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Marcos Vieira

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