Glomus tumor pathophysiology
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Glomus tumor Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Glomus tumor pathophysiology On the Web |
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American Roentgen Ray Society Images of Glomus tumor pathophysiology |
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Risk calculators and risk factors for Glomus tumor pathophysiology |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [2]
Overview
Glomus tumor arises from modified smooth muscle cells of glomus body (or glomus apparatus). Glomus body is a neuromyoarterial plexus in the dermis of skin that is normally involved in thermoregulation.
Pathophysiology
Glomus Tympanum Tumor Pathology
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Picture of a left tympanic membrane with a pulsating red mass occupying the inferior portion of the middle ear space. The rest of the tympanic membrane is normal.
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Glomus tympanicum magnified.
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This patient presented with a history of severe bleeding from the placement of a PE tube in her right ear. On examination, the posterior half of the tympanic membrane was red and pulsating.
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Surgical picture of the above patient. A tympanomeatal flap has been elevated and reflected anteriorly to expose the glomus tympanicum that filled the posterior half of the middle ear space.
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Surgical picture of glomus tympanicum in the eft middle ear. The tympanomeatal flap has been raised and reflected anteriorly.
