Why is sarcoidosis called the great imitator?

Updated: Jul 30, 2018
  • Author: Joseph F Merola, MD, MMSc; Chief Editor: Dirk M Elston, MD  more...
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Sarcoidosis is called the "great imitator" because it can have almost any morphology. [9] Other rare lesions of cutaneous sarcoidosis are ichthyosiform, [10] lichenoid, vasculitic, [11] psoriasiform, erythrodermic, verrucous, papillomatous, and ulcerative lesions. (See the image below.)

Erythematous papules on the knee. Erythematous papules on the knee.

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