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Ординатура / Офтальмология / Английские материалы / Sjögren's Syndrome Diagnosis and Therapeutics_Ramos-Casals, Stone, Moutsopoulos_2012.pdf
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H.W. Walling and R.D. Sontheimer

Fig. 11.5 Subacute cutaneous LE. Left panel – annular SCLE lesions on the neck of a patient with SjS. Note the polycyclic arrays produced by the merging of peripherally expanding lesions. Right panel – Papulosquamous SCLE lesions. A retiform array results from the merging of such lesions

panniculitis-like T-cell lymphoma can be difficult to distinguish both clinically and histopathologically from lupus panniculitis (lupus profundus), which can occur in overlap with SLE.

11.4Skin Changes Encountered in Secondary SjS

11.4.1Skin Changes Associated with Lupus Erythematosus

Subacute cutaneous lupus erythematosus (SCLE). SCLE is a photosensitive rash consisting of nonscarring, papulosquamous or annular skin lesions that occur over the back, trunk, and shoulders, typically sparing the face (Fig. 11.5). Skin biopsy shows characteristic features of LE-specific skin disease that are focused at the der- mal-epidermal junction. On direct immunofluorescence microscopy, approximately 60% of SCLE lesions display a continuous, granular band of immunoglobulin and complement deposits at the dermal-epidermal junction. SCLE skin lesions mark the presence of homogenous immunogenetic subset of LE that typically enjoys a good prognosis with respect to SLE morbidity and mortality [47, 48].

Because of the shared 8.1 ancestral genotype and it serological correlates, anti- Ro/SS-A and anti-La/SS-B autoantibodies, a subgroup of the original cohort of 27 SCLE patients reported in 1979 was subsequently evaluated for evidence of SjS [47]. Only 2 of the 17 (12%) SCLE patients evaluated were found to have clinical and histopathologic evidence of SjS [49]. A question was then raised about the risk of SCLE patients developing SjS when observed over longer periods of time. Few primary data address this risk. However, it has been estimated that 20–40% of SCLE patients might develop features of SjS over long periods of follow-up. As an

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