Differential Diagnosis for Simplex Dermatitis in a 9-Year-Old Female
Single Most Likely Diagnosis
- Atopic Dermatitis (Eczema): This is the most common cause of simplex dermatitis in children, characterized by itchy, inflamed skin, and often associated with allergies or asthma.
Other Likely Diagnoses
- Irritant Contact Dermatitis: This condition occurs when the skin comes into contact with an irritant, such as soap, detergent, or other chemicals, causing inflammation and itching.
- Allergic Contact Dermatitis: Similar to irritant contact dermatitis, but caused by an allergic reaction to substances like nickel, latex, or certain plants.
- Seborrheic Dermatitis: A condition that causes scaly, itchy patches on the skin, often on the face, scalp, or torso.
Do Not Miss Diagnoses
- Scabies: A highly contagious skin infestation caused by the scabies mite, characterized by intense itching and a pimple-like rash.
- Bullous Impetigo: A bacterial skin infection that can cause blisters and sores, which can be serious if left untreated.
- Staphylococcal Scalded Skin Syndrome (SSSS): A rare but potentially life-threatening condition caused by staphylococcal toxins, which can lead to widespread skin lesions and blistering.
Rare Diagnoses
- Pityriasis Alba: A mild, chronic skin condition characterized by small, round, hypo-pigmented patches on the face, often associated with atopic dermatitis.
- Keratosis Pilaris: A harmless condition that causes small, rough patches on the skin, often on the arms, legs, or buttocks.
- Dyshidrotic Eczema: A type of eczema that causes small, itchy blisters on the hands or feet, often associated with stress or allergies.