We illustrate the case of a 41-year-old male with allergic manifestations since childhood. He sought medical attention for intermittent. progressive dysphagia from which he had been suffering for a number of years. having felt the sensation of a retrosternal lump and a self-limited obstruction to the passage of food. https://www.kingarte.com/product-category/accessoriesmixer-parts-food-servicecommercial-kitchen-equipmentfood-preparation-equipmentfood-preparation-equipment-parts/