{"id":2488,"date":"2023-07-25T00:00:00","date_gmt":"2023-07-25T05:00:00","guid":{"rendered":"https:\/\/mdbc2.wpenginepowered.com\/blog\/spotting-impetigo-differential-diagnosis-key-clinical-clues-and-evidence-based-treatment-approaches\/"},"modified":"2025-04-17T10:02:51","modified_gmt":"2025-04-17T15:02:51","slug":"spotting-impetigo-differential-diagnosis-key-clinical-clues-and-evidence-based-treatment-approaches","status":"publish","type":"blog","link":"https:\/\/www.mdbriefcase.com\/fr\/blog\/spotting-impetigo-differential-diagnosis-key-clinical-clues-and-evidence-based-treatment-approaches\/","title":{"rendered":"D\u00e9tection de l'imp\u00e9tigo : diagnostic diff\u00e9rentiel, indices cliniques cl\u00e9s et approches th\u00e9rapeutiques fond\u00e9es sur des donn\u00e9es probantes"},"content":{"rendered":"

Impetigo is a highly contagious infection in the epidermis or outer layers of the skin, primarily caused by\u00a0Staphylococci bacteria. The diagnosis is clinical, but it\u2019s critical to consider the patient history, your findings during a physical exam, and lab tests where necessary.<\/span><\/p>\n

Impetigo in Patients<\/b><\/h2>\n

There are two forms of impetigo, known as nonbullous and bullous impetigo respectively.\u00a0<\/span>Nonbullous impetigo<\/span><\/a> is the most common form, characterized by rupturing blisters.\u00a0<\/span>S. aureus<\/span><\/i> is the primary cause, especially in the early stages, but Streptococci bacteria tend to dominate in the later stages.\u00a0<\/span><\/p>\n

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Bullous impetigo, on the other hand, is\u00a0<\/span>caused solely by\u00a0S. aureus<\/span><\/a> and is most prevalent in infants and children<\/span>.<\/span><\/i> The bullae, or large fluid-filled blisters, appear as bacteria release toxins. Untreated or unresponsive bullous impetigo may develop into a deep ulcerated infection known as ecthyma.<\/span><\/p>\n

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Some children or adults with pre-existing skin conditions, such as atopic dermatitis, may be more prone to infections.\u00a0Both forms often appear after a small break in the skin.<\/span><\/p>\n

Key Clinical Clues of Impetigo<\/b><\/h2>\n

Impetigo may be easily mistaken for other diseases, but a few\u00a0<\/span>signs and symptoms<\/span><\/a> can help you identify the condition. Patients may describe a painless itchy rash with red spots progressing to fluid-filled blisters. You may also see:<\/span><\/p>\n