Syphilis [3] | Sarcoidosis [17] | Granuloma annulare [25] |
---|---|---|
Tuberculosis [3] | Acne vulgaris [17] | Hepatitis B virus immunization [26] |
Xanthomas [3] | Leprosy [17] | Primary Sjogren's syndrome [27] |
Nodular amyloidosis [3] | Lupus erythematosus [17, 21] | Lichen planus [28] |
Melanocytic naevi [4] | Pilomatricoma [18, 19] | Insect bites [28] |
Low serum level of α-1-antitrypsin [6] | Prurigo nodularis [20] | Lupus profundus [30, 31] |
Antiphospholipid syndrome [6, 11, 1nd 24] | Cutaneous plasmacytoma [21] | Discoid lupus (with herediyary C2 defficiency) [32] |
Recurrent deep vein thrombosis [7] | Benign cutaneous lymphoid hyperplasia [21] | Pityriasis versicolor [33] |
History of Graves' disease [7] | Urticaria pigmentosa [22, 23] | Dermatofibroma [34] |
Familial type [8] | Perifolliculitis [23] | Penicillamine-induced [34, 40] |
Prematurity [10] | Varicella [24] | HIV-infection [42] |