Abstract
To the Editor.— The recent report by Fisher et al 1 on the relationship, or lack of it, of polymorphous light eruption (PMLE) to discoid lupus erythematosus (DLE) prompted me to conceptualize the following alternative interpretation. Patients with the broadly inclusive disease entity, "usually-light-exposed-but-not-necessarily-light-related-dyscollagenovasculosis" (ULEBNNLRD), may be subclassified into two groups, according to the presence (subgroup A) or absence (subgroup B) of antinuclear and dermal-epidermal junctional antibodies: subgroup A to be termed lupus and subgroup B to be termed "non-lupus" and to include PMLE. To me, this proposal is no more arbitrary than the conclusion offered in the article that DLE and PMLE are completely unrelated. What's more, ULEBNNLRD provides a haven (subgroup B, or nonlupus) for "problem cases" that lack both positive antibody tests and positive phototests. Until we have a positive diagnostic test for PMLE (apart from the phototest), I think it would be wisest to leave the
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