• Joana Barradas Lopes, Moises Labrador-Horrilo, Borja Bartolomé, and Leonor Cunha.
• Department of Immunoallergology. Centro Hospitalar de Vila Nova de Gaia/Espinho. Vila Nova de Gaia. Portugal.
• Acta Medica Port. 2022 May 2; 35 (5): 388-391.

AbstractCat-pork syndrome is a rare condition, with few cases reported in the literature. This syndrome is justified by the homology between serum albumins from cat and pork. Evidence suggests that a primary sensitization to cat serum albumin Fel d 2 occurs, followed by allergic reactions after ingestion of pork meat containing serum albumin Sus s 1. Due to homology between other mammalian serum albumins, reactions with other meats can also be present. We report a well-documented case report of a patient with cat-pork syndrome, with initial mild and non-specific manifestations to well-cooked pork that were overlooked. Component resolved diagnosis was essential to establish the diagnosis, which confirmed the involvement of Fed 2 and Sus s 1, but less relevant in helping to define avoidance diets, since the sensitization profile was not in accordance with clinical manifestations.

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