Table 2. Differential diagnosis of perianal streptococcal dermatitis

 

Infections

Bacterial: staphylococcal, streptococcal

Fungal: candidal intertrigo

Parasitic: pinworm

 

Malignancies

Extramammary Paget’s disease

Histiocytosis

Squamous cell carcinoma in situ (perianal Bowen’s disease)

 

Miscellaneous

Inflammatory bowel disease

Sexual abuse

 

Papulosquamous disorders

Allergic contact dermatitis

Atopic dermatitis

Irritant contact (diaper) dermatitis

Psoriasis vulgaris

Seborrheic dermatitis