stenosis is a topic covered in the Taber's Medical Dictionary.

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[Gr. stenōsis, a narrowing]
The constriction or narrowing of a passage or orifice.
SEE: obstruction (1)
stenosedstenotic (stĕ-nōst) (stĕ-nōzd′) (stĕ-not′ik), adj.

Stenosis may involve almost any tube or duct. It may result from embryonic maldevelopment, hypertrophy and thickening of a sphincter muscle, inflammatory disorders, or excessive development of fibrous tissue.

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