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pharyngeal tonsil

n :  a mass of lymphoid tissue at the back of the pharynx between the eustachian tubes that is usu. best developed in young children, is commonly atrophied in the adult, and is markedly subject to hypertrophy and adenoid formation esp. in children - called also nasopharyngeal tonsil  .

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Swisher Memorial Hospital (Tulia, Texas - Swisher County)