Skin nontumor
Lichenoid and interface reaction patterns
Lupus: systemic lupus erythematosus (SLE)
Copyright: 2002-2020, PathologyOutlines.com, Inc.
PubMed Search: Lupus: systemic lupus erythematosus [title] skin
Lichenoid and interface reaction patterns
Lupus: systemic lupus erythematosus (SLE)
Topic Completed: 1 August 2011
Minor changes: 19 March 2020
Copyright: 2002-2020, PathologyOutlines.com, Inc.
PubMed Search: Lupus: systemic lupus erythematosus [title] skin
Table of Contents
Clinical features | Clinical images | Microscopic (histologic) description | Microscopic (histologic) images | Positive stains | Differential diagnosisCite this page: Hamodat M. Lupus: Systemic lupus erythematosus (SLE). PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/skinnontumorlupussle.html. Accessed May 27th, 2020.
Clinical features
- Relatively common autoimmune disease of women, due to anti-DNA antibodies
- Fatigue, fever, arthritis, erythematous, bilateral butterfly (malar) rash of the face, renal disease, lymphadenopathy, and serositis
- Associated with altered immunity, drugs, viruses, genetic predisposition, hormones and ultraviolet light
- Exacerbated by sunlight
- Discoid lupus type lesions in 33%
- Cutaneous lesions take the form slightly indurated patches with minimal scale
Clinical images
Images hosted on other servers:
Malar rash of face
Microscopic (histologic) description
- Fibrinoid necrosis at dermoepidermal junction with liquefactive degeneration and atrophy of epidermis
- More mucin deposition in reticular dermis than discoid lupus
- Edema, small hemorrhages and a mild infiltrate of inflammatory cells, principally lymphocytes, in upper dermis
- Eosinophils in drug induced cases and urticarial lesions
- Fibrinoid material is deposited in the dermis around capillary blood vessels, on collagen and in the interstitium
- In nonbullous cases, neutrophils are sometimes present in the upper dermis, both perivascular and interstitial with leukocytoclasis
Microscopic (histologic) images
Images hosted on other servers:
Various images
Positive stains
- IgG, IgM and C5b-C9 (by direct immunofluorescence) in clinically involved skin as an irregular band at dermoepidermal junction
- IgG and IgM in 50% of cases in normal skin
- Also antibodies for ANA, rheumatoid factor, anti-double stranded DNA, ENA
Differential diagnosis
- Polymorphous light eruption
- Jessners lymphocytic infiltration of skin
