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What is ” Covid-Toes”? Another Telltale for Covid-19?

Photos credit to medicalxpress | cosmeticsdesign

Skin doctors in U.S. suddenly are looking at a lot of toes —either an emailed picture or video visit — as concern grows in some people, maybe it’s a sign of Covid-19.

Boston dermatologist, Dr. Esther Freeman expected to see skin complaints as the pandemic unfolded — various kinds of rashes occur when people get very ill from other viruses. And she has viewed via telemedicine more toes in the last several weeks than in her entire career.

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They’re being called “Covid-toes” — red, sore and sometimes itchy swellings on toes that look like chilblains, something doctors normally see on the feet and hands of people who’ve spent a long time outdoors in the cold.

However, American Academy of Dermatology said, Don’t race to the emergency room if toes are the only worry.

Earlier this month, it issued advice that a telemedicine check is the first step for people wondering if they have “Covid-toes” and who have no other reason for urgent care. Doctors then should decide if the patient should stay in home isolation or get tested.

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The most common coronavirus symptoms are fever, a dry cough, and shortness of breath — and some people are contagious despite never experiencing symptoms. But as this bewildering virus continues to spread, less common symptoms are being reported including loss of smell, vomiting, and diarrhea, and increasingly, a variety of skin problems.

In one report, dermatologists evaluated 88 Covid -19 patients in an Italian hospital and found 1 in 5 had some sort of skin symptom, mostly red rashes over the trunk. In another, Spanish doctors reported a series of 375 confirmed Covid-19 patients with a range of skin complaints, from hives to chickenpox-like lesions to the toe swellings.

Dr. Esther directs an international Covid-19 registry for doctors to report cases of possibly virus-linked skin symptoms. Of 500 reports since late March, about half are chilblain-like spots on the feet, she said.

Credit : The Star –  (Courtesy of Dr. Amy Paller/Northwestern University via AP)

Pictures of reddened toes and rashes all over social media and doctor chat groups have “already enabled the rapid recognition of skin signs by dermatologists. It is now time for rigorous science” to understand the link, Dr. Kanade Shinkai of the University of California, San Francisco wrote in a recent JAMA Dermatology editorial.

Chilblains, what doctors call “pernio, ” are an inflammatory reaction. When pernio-like reactions appear in coronavirus-infected patients is one of many mysteries. For some people, it’s the first or even only symptom they notice. Others see the toe problem at the same time or even a few weeks after experiencing more common and serious Covid-19 symptoms.

It’s showing up in young people too, according to Dr. Amy Paller of Northwestern University, who is part of a pediatric dermatology registry also collecting images of patients’ toes.

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Among the theories: Is it just inflammation triggered by an infection instead of the cold? Is the virus irritating the lining of blood vessels in the skin, or perhaps causing microscopic blood clots?

“The public health message is not to panic, ” Dr. Esther said, noting that most toe patients she’s seen haven’t become severely ill.

Are they contagious? “We can’t tell just by looking at your toes, ” she said. Other medical conditions, such as lupus, can cause similar spots — another reason doctors should discuss each patient’s overall health and next steps for testing or other needed care.

Source : The Star