Condition	Characteristics
Candidiasis	Beefy red erythema on the buttocks, lower abdomen, and thighs; pinpoint pustulovesicular satellite lesions involving the intertriginous areas
Congenital syphilis	Maculopapular rash in the groin area with associated involvement of the palms and soles; associated with hepatosplenomegaly and anemia
Langerhans cell histiocytosis	Severe and chronic; hemorrhagic, seborrhea-like eruptions; multisystem disease associated with hepatosplenomegaly; skin biopsy positive for S-100 and CD1a surface markers
Perianal streptococcal infection	Bright red, sharply demarcated rash associated with perianal itching, rectal pain, and blood-streaked stools
Seborrheic dermatitis	Well-circumscribed, greasy scaling over red, inflamed skin; associated with dermatitis of the scalp, eyebrows, ears, and axilla