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papules, nodules & plaques by color
Etiology:
1) white
- calcinosis cutis
2) flesh-colored
- rheumatoid nodule
- neurofibromas (von Recklinghausen's disease)
- angiofibromas (tuberous sclerosis)
- neuromas (MEN 2b)
- adnexal tumors
- basal cell epithelioma (basal cell nevus syndrome)
- tricholemmoma (Cowden's disease)
- primary cutaneous disorders
- epidermal inclusion cyst
- lipoma
3) pink or translucent
- amyloidosis
- papular mucinosis
4) yellow
- xanthoma
- tophi
- necrobiosis lipoidica
- pseudoxanthoma elasticum
- sebaceous adenoma (Torre's syndrome)
5) red
a) papules
- angiokeratoma (Fabry's disease)
- bacillary angiomatosis (AIDS)
b) papules &/or plaques
- cutaneous lupus erythematosus
- lymphoma cutis
- leukemia cutis
c) nodules
- panniculitis
- cutaneous polyarteritis nodosa
- systemic vasculitis
d) primary cutaneous disorders
- arthropod bite
- insect bite
- spider bite
- tick bite
- cherry hemangioma
- infections
- erysipelas
2] sporotrichosis
- polymorphous light eruption
- lymphocytoma cutis (pseudolymphoma)
6) red-brown
- sarcoidosis
- Sweet's syndrome
- urticaria pigmentosa
- mastocytosis
- erythema elevatum diutinum (chronic leukocytoclastic vasculitis)
- lupus vulgaris
7) blue
- venous malformations (blue rubber bleb syndrome)
- primary cutaneous disorders
- venous lake
- blue nevus
8) violaceous
- lupus pernio (sarcoidosis)
- lymphoma cutis
- cutaneous lupus erythematosus
9) purple
- Kaposi's sarcoma
- angiosarcoma
- palpable purpura
10) brown-black (see hyperpigmentation)
11) any color
- metastases
Related
papule
plaque
skin nodule
References
Harrison's Principles of Internal Medicine, 14th ed.
Fauci et al (eds), McGraw-Hill Inc. NY, 1998, pg 323