Granuloma faciale is an uncommon benign

Benign

A benign tumor is a tumor that lacks the ability to metastasize. Common examples of benign tumors include moles and uterine fibroids.The term "benign" implies a mild and nonprogressive disease. Indeed, many kinds of benign tumors are harmless to human health...

 chronic skin disease of unknown origin characterized by single or multiple cutaneous nodules

Nodule (medicine)

For use of the term nodule in dermatology, see Nodule In medicine, a nodule refers to a relatively hard, roughly spherical abnormal structure....

, usually occurring over the face. Occasionally, extrafacial involvement is noted, most often on sun-exposed areas.

Differential diagnosis

The disease mimics many other dermatoses and can be confused with conditions, such as sarcoidosis

Sarcoidosis

Sarcoidosis , also called sarcoid, Besnier-Boeck disease or Besnier-Boeck-Schaumann disease, is a disease in which abnormal collections of chronic inflammatory cells form as nodules in multiple organs. The cause of sarcoidosis is unknown...

, discoid lupus erythematosus

Discoid lupus erythematosus

Discoid lupus erythematosus is an uncommon autoimmune disease of the basal cell layer of the skin. It occurs in humans and cats, more frequently occurring in dogs. It does not progress to systemic lupus erythematosus in dogs. SLE can also have skin symptoms, but it appears that the two are...

, mycosis fungoides

Mycosis fungoides

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, and fixed drug eruption.