Difference between revisions of "Sinusitis"

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==Microscopic==
==Microscopic==
Features:
Features:
*Sinonasal mucosa with chronic inflammation.
*Sinonasal mucosa.
**Ciliated epithelium.
**Ciliated epithelium.
**+/-Squamous epithelium.
**+/-Squamous epithelium.
**Subepithelial glands.
**Subepithelial glands.
*Inflammatory cells.
**Plasma cells - usu. predominant.
**Lymphocytes.
*+/-Bone.
*+/-Bone.