Differential Diagnosis for Annular Palm Lesions
- Single Most Likely Diagnosis
- Tinea manuum: A fungal infection of the palm, often caused by Trichophyton rubrum or Epidermophyton floccosum, which can present with annular lesions.
- Other Likely Diagnoses
- Granuloma annulare: A benign skin condition characterized by ring-shaped lesions, which can occur on the palms.
- Psoriasis: A chronic autoimmune skin condition that can cause annular lesions on the palms, especially in cases of palmoplantar psoriasis.
- Eczema (dyshidrotic): A type of eczema that can cause annular vesicles or lesions on the palms.
- Do Not Miss Diagnoses
- Lyme disease: Although less common, Lyme disease can cause annular lesions (erythema migrans) on the palms, and missing this diagnosis can lead to serious complications if left untreated.
- Sporotrichosis: A fungal infection that can cause skin lesions, including annular ones, especially in individuals who work with soil or plants.
- Rare Diagnoses
- Necrolytic acral erythema: A rare skin condition associated with hepatitis C infection, which can cause annular lesions on the palms.
- Annular pityriasis: A rare condition characterized by ring-shaped lesions, which can occur on the palms.