Differential Diagnosis for Yeast vs Acne Rash on Chest
- Single most likely diagnosis
- Acne: This is the most likely diagnosis due to the common occurrence of acne on the chest, especially during puberty and in individuals with a history of acne. The rash is likely to be composed of comedones, papules, and pustules.
- Other Likely diagnoses
- Pityrosporum folliculitis (yeast infection): This condition is caused by the overgrowth of yeast in the hair follicles, leading to inflammation and rash. It is more common in warm and humid environments and can be mistaken for acne.
- Keratosis pilaris: A harmless condition characterized by small, rough patches on the skin, often on the chest, arms, and legs. It can be mistaken for a rash.
- Eczema (atopic dermatitis): A chronic skin condition that can cause a rash on the chest, characterized by dryness, itching, and inflammation.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Tuberculosis (TB) of the skin: Although rare, TB can cause a skin rash, and it is essential to consider this diagnosis, especially in individuals with a history of TB exposure or immunocompromised patients.
- Syphilis: A bacterial infection that can cause a rash on the chest, among other symptoms. It is crucial to consider this diagnosis, especially in individuals with a history of sexually transmitted infections.
- Rare diagnoses
- Histoplasmosis: A fungal infection that can cause a rash on the chest, among other symptoms. It is more common in individuals who have been exposed to bird or bat droppings.
- Coccidioidomycosis: A fungal infection that can cause a rash on the chest, among other symptoms. It is more common in individuals who have been exposed to soil in endemic areas.