WBirbeck granules
WGeneralized granuloma annulareWGranuloma annulare
WHand–Schüller–Christian disease
WHereditary progressive mucinous histiocytosis
WLangerhans cell histiocytosisWLangerhans cell histiocytosis
WLetterer–Siwe disease
WLöfgren syndrome
WLupus pernio
WSarcoidosisWSarcoidosis