Glomus tumor

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	Glomus tumor;
ICD-O:	8711/0
OMIM	138000
DiseasesDB	30732
eMedicine	derm/167
MeSH	D005918

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Overview

Glomus tumor was also the name formerly used for a tumor now called a paraganglioma.

A glomus tumor (glomangioma) is a rare benign neoplasm, is a specialized arteriovenous anastomosis usually found in the skin of the extremities. It arises from the glomus body.

They are usually solitary and small, and most often are found under the fingernails. They can also be found on the tympanic membrane.

They are often painful, and the pain is reproduced when the lesion is placed in cold water.

Diagnosis

Physical Examination

Ear Nose and Throat

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^[1].
Glomus tympanicum magnified^[2].
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^[3].
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^[4].
Axial CT scan showing the glomus tumor growing from the medial wall of the middle ear^[5].
Coronal CT scan showing the glomus tympanicum tumor growing from the medial wall of the middle ear^[6].
Surgical picture of glomus tympanicum in the eft middle ear. The tympanomeatal flap has been raised and reflected anteriorly^[7].