Table 1

clinical features that distinguish sjs, sjs-ten overlap, and ten (adapted after 1)

Clinical entity

SJS

SJS-TEN overlap

TEN


Primary lesions

Dusky red lesions

Dusky red lesions

Poorly delineated erythematous plaques

Flat atypical targets

Flat atypical targets

Epidermal detachment

Dusky red lesions

Flat atypical targets


Distribution

Isolated lesions

Isolated lesions

Isolated lesions (rare)

Confluence (+) on face and trunk

Confluence (++) on face and trunk

Confluence (+++) on face, trunk, and elsewhere


Mucosal involvement

Yes

Yes

Yes


Systemic symptoms

Usually

Always

Always


Detachment (%body surface area)

< 10

10-30

> 30


Harr and French Orphanet Journal of Rare Diseases 2010 5:39   doi:10.1186/1750-1172-5-39

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