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Noncancerous ear tumors Cancerous ear tumors

Outer Ear Disorders

Birth Defects of the Ear

Dermatitis of the Ear Canal

Ear Blockages

Ear Tumors

Ear Canal Infection (Swimmer's Ear)

Malignant External Otitis

Perichondritis

Diabetic ketoacidosis is a complication of diabetes. It occurs mostly in people with type 1 diabetes. Diabetic ketoacidosis occurs when a lack of insulin prevents glucose in the bloodstream from entering the cells. Without adequate glucose, the cells burn fat for energy, producing compounds called ketones. Ketones supply some energy, but they also make the blood too acidic. There are several causes of ketoacidosis. Which of the following is a cause of ketoacidosis?

Consumption of high amounts of sugar
Failure to take insulin by a person with type 1 diabetes
Taking too much insulin
Not getting enough exercise

Ear Tumors

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The Manual's Editorial Staff

Last full review/revision Apr 2020| Content last modified Apr 2020

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Topic Resources

The Outer Ear

Ear tumors are growths on the outside of your ear or inside your ear canal. The ear canal is the tube that connects the outside of your ear to your eardrum.

Ear tumors can be cancerous or noncancerous
Noncancerous tumors that grow in your ear canal can cause ear blockages, hearing loss, and a buildup of earwax
Sometimes, noticing you can’t hear as well as usual is the first sign of an ear tumor
Doctors may see your tumor when they look in your ear
Cancerous tumors include skin cancers that can happen in and around your ear

The Outer Ear

Noncancerous (benign) tumors that can grow on your ear and in your ear canal include:

Cysts Skin Cysts The photo at left shows an epidermoid cyst on the chin. The close-up photo at right shows the cheesy, foul-smelling substance composed of secretions contained inside the cyst. A cyst is a sac... read more (small sacs filled with fluid)
Bone tumors

Doctors will do surgery to remove a growth that blocks your ear or causes hearing loss.

Cancerous ear tumors can be:

Cancer in the cells that make earwax
Skin cancers, which can be on your ear or in your ear canal

Skin cancers that can affect the ear include:

To treat skin cancer on your ear, doctors may do:

Surgery
Radiation therapy (a type of treatment that shrinks tumors and destroys cancer cells)

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Ear Blockages

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Ear Canal Infection (Swimmer's Ear)

Outer Ear Disorders

Birth Defects of the Ear

Dermatitis of the Ear Canal

Ear Blockages

Ear Tumors

Ear Canal Infection (Swimmer's Ear)

Malignant External Otitis

Perichondritis

Ear Tumors

Mouth and Throat Cancer

Ear Discharge

Diabetic ketoacidosis is a complication of diabetes. It occurs mostly in people with type 1 diabetes. Diabetic ketoacidosis occurs when a lack of insulin prevents glucose in the bloodstream from entering the cells. Without adequate glucose, the cells burn fat for energy, producing compounds called ketones. Ketones supply some energy, but they also make the blood too acidic. There are several causes of ketoacidosis. Which of the following is a cause of ketoacidosis?

Consumption of high amounts of sugar
Failure to take insulin by a person with type 1 diabetes
Taking too much insulin
Not getting enough exercise

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