Severe cytomegalovirus infection

What it means

An unusually severe infection by cytomegalovirus.

A typical mononucleosis syndrome consists of an acute febrile illness with an increase of 50 percent or more in the number of lymphocytes or monocytes, with at least 10 percent of the lymphocytes being atypical. Immunocompromised patients may experience more severe complications such as CMV retinitis.

Rare diseases that can present with this3

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category