Sarcoidosis Sarcoidosis (also known as ''Besnier-Boeck-Schaumann disease'') is a disease involving abnormal collections of inflammatory cells that form lumps known as granulomata. The disease usually begins in the lungs, skin, or lymph nodes. Less commonly af ...

, an inflammatory disease, involves the skin in about 25% of patients. The most common lesions are erythema nodosum, plaques, maculopapular eruptions, subcutaneous nodules, and lupus pernio. Treatment is not required, since the lesions usually resolve spontaneously in two to four weeks. Although it may be disfiguring, cutaneous sarcoidosis rarely causes major problems.Harrison's Practice
Sarcoidosis.

Classification

Morphology

Ulcerative sarcoidosis is a cutaneous condition affecting roughly 5% of people with

sarcoidosis Sarcoidosis (also known as ''Besnier-Boeck-Schaumann disease'') is a disease involving abnormal collections of inflammatory cells that form lumps known as granulomata. The disease usually begins in the lungs, skin, or lymph nodes. Less commonly af ...

. Annular sarcoidosis is a cutaneous condition characterized by

papular A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the Human body, body and includes skin, Nail (anatomy), nails, and related muscle and glands. Th ...

skin lesions arranged in annular patterns, usually with a red-brown hue.

Pattern

Morpheaform sarcoidosis is a very rare cutaneous condition characterized by specific cutaneous skin lesions of

accompanied by substantial fibrosis, simulating morphea. Erythrodermic sarcoidosis is a cutaneous condition and very rare form of

. Hypopigmented sarcoidosis is a cutaneous condition characterized by areas of

hypopigmented Hypopigmentation is characterized specifically as an area of skin becoming lighter than the baseline skin color, but not completely devoid of pigment. This is not to be confused with depigmentation, which is characterized as the absence of all pi ...

skin Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. Other cuticle, animal coverings, such as the arthropod exoskeleton, have diffe ...

. It is usually diagnosed in darkly pigmented races and may be the earliest sign of

. Papular sarcoid is a cutaneous condition characterized by papules, which are the most common morphology of cutaneous

. Ichthyosiform sarcoidosis is a cutaneous condition resembling

ichthyosis vulgaris Ichthyosis vulgaris (also known as "autosomal dominant ichthyosis" and "Ichthyosis simplex") is a skin disorder causing dry, scaly skin. It is the most common form of ichthyosis,Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medic ...

or acquired ichthyosis, with fine scaling usually on the distal extremities, by caused by

Location

Subcutaneous sarcoidosis (also known as "Darier–Roussy disease" and "Darier-Roussy sarcoid") is a cutaneous condition characterized by numerous 0.5- to 0.3-cm deep-seated nodules on the trunk and extremities. Scar sarcoid (also known as "Sarcoidosis in scars") is a cutaneous condition characterized by infiltration and elevation of tattoos and old flat scars due to

. Mucosal sarcoidosis is a cutaneous condition characterized by pinhead-sized papules that may be grouped and fused together to form a flat plaque. Erythrodermic sarcoidosis is a cutaneous condition and very rare form of

References

External links

{{Sarcoidosis Autoimmune diseases Monocyte- and macrophage-related cutaneous conditions