Merck Manual

Please confirm that you are not located inside the Russian Federation

honeypot link
Quick Facts

Cortical Necrosis of the Kidneys

By

The Manual's Editorial Staff

Last full review/revision Dec 2019| Content last modified Dec 2019
Click here for the Professional Version
Get the full details
Topic Resources

Your kidneys are 2 bean-shaped organs that make urine, balance your body’s water and mineral levels, and filter waste out of your blood.

The Urinary Tract

The Urinary Tract

What is cortical necrosis of the kidneys?

The outer part of the kidney is called the cortex. Necrosis means death of tissue. Cortical necrosis of the kidneys is the death of tissue in the outer layer (cortex) of one or both of your kidneys.

Cortical necrosis is caused by a blockage of the blood vessels that bring blood to your kidneys.

What causes cortical necrosis of the kidneys?

The causes depend on age.

In newborns, causes include:

In children, causes include:

In adults, causes include:

What are the symptoms of cortical necrosis of the kidneys?

You usually don't have any symptoms unless you get kidney failure. Symptoms of kidney failure include:

  • Feeling weak and tired

  • Feeling sick to your stomach

  • Being less hungry than usual

  • Itching

  • Feeling sleepy or confused

How can doctors tell if I have cortical necrosis of the kidneys?

Doctors suspect cortical necrosis if you have one of the disorders that can cause it and routine blood tests show your kidneys aren't working normally. To tell for sure, they may do:

  • Computed tomography angiography (CTA)—a type of CT scan that focuses on your major blood vessels

How do doctors treat cortical necrosis of the kidneys?

NOTE: This is the Consumer Version. DOCTORS: Click here for the Professional Version
Click here for the Professional Version
Others also read
Test your knowledge
Swelling
Swelling is a condition caused by excess fluid in the tissues. The fluid involved in swelling is primarily water. Swelling may occur in one or several parts of the body, often the feet and lower legs. Swelling that occurs throughout the body has different causes than swelling in a single limb or part of a limb. Which of the following is a frequent cause of swelling in a single limb or part of a limb?
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID

Also of Interest

Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
TOP