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Los senos están rodeados de hueso y cartílago y recubiertos por una membrana mucosa. La sinusitis se presenta cuando las membranas se inflaman y causan dolor, lo cual puede ser resultado de un bloqueo de la entrada del seno.

Con frecuencia, la sinusitis crónica es causada por inflamación y bloqueo debido a una obstrucción física, como desviación del tabique, malformación ósea o de la estructura del cartílago, como por ejemplo las conchas nasales, o bloqueos por quistes o pólipos nasales.

• Fecha de revisión: 8/8/2006
• Versión en inglés revisada por: D. Scott Smith, M.D., MSc, DTM&H, Chief of Infectious Disease & Geographic Medicine, Kaiser Redwood City, CA & Adjunct Assistant Professor, Stanford University. Review provided by VeriMed Healthcare Network.
• Traducción y localización realizada por: DrTango, Inc.

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