Fluorescent blue blisters on baby’s skull

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A 6-year-old boy comes with his parents to the dermatology clinic. The scene takes place in Hangzhou, China.. The baby does not stop scratching his head, and for good reason, he has had a rash on his face and back for more than three months. Skull. The eager, eager So severe that he loses his hair in patches. At first glance, it seems that he only suffers fromSkin condition such as eczema where is the psoriasis.

But there are two signs that lead doctors down another path. boy has Lymph nodes They are located just behind the ears that are swollen, which is a sign that it is an infection. But above all, the blisters dotting his skull glow a fluorescent blue when observed beneath light UV. There is no doubt about the diagnosis: the boy has tinea capitis (Tinea capitis). It remains to be found out microorganisms who created it.

A little fungus in the hair

A small sample of hair dipped in hydroxide potassium The culprit will be revealed. The sample is passed under a light microscope and doctors notice tiny, blue-segmented, worm-shaped organisms. it’s not bacteria or a parasite but whohyphen frommicroscopic mushroom From the Dermaviti family: Microsporum canis. L ‘Ocean Confirmed by molecular biology tests.

As its name suggests, Microsporum canis hit dogAs well as cats and other pets. The mushroom Responsible for 90% of the cases of ringworm of our four-legged friends. Animals contaminate humans, especially children under 12 years of age, through direct contact or via Fungus-bearing hair. Mr. Kanis attack the keratin Which leads to the formation of hair, which leads to the appearance of a Alopecia areata There is no turning back sometimes. L ‘ignite Domestic it provokes attacksskin that peel off.

So the young patient was infected with a contaminated animal, but his family does not have any pets. On the other hand, he could have had contact with a dog during his stay in the countryside a few months ago which coincided with the appearance of the first symptoms. Dermatomycosis can be treated with particles antifungals – Here terbinafine orally and in a topical cream – which inhibits the synthesis of the main component of plasma membrane of fungi, which is essential for their survival. All is well which ends well for the young patient since six weeks of treatment allowed him to clear the infection and did not relapse.

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