Hypertrophic (Verrucous) Cutaneous Lupus Erythematosus of the Lip and Oral Cavity: A Series of 4 Cases

Abstract

So-called “hypertrophic cutaneous lupus erythematosus (LE)” (also termed “verrucous cutaneous LE”) is a dis-tinct and rare clinical variant of chronic cutaneous LE that is characterized by intense tissue hyperplasia and hyperkeratosis. Hypertrophic LE causes marked disfigu-rement and is usually resistant to therapy (1, 2). Lesions occur more commonly on the face and upper limbs, with no specific mention in the literature of lesions occurring on the lips or oral mucosa. We describe here a series of 4 cases with a diagnosis of LE who presented with hypertrophic lesions on the skin and oral mucosa. Clinical and laboratory data are presented, together with detailed characterization of the mucosal involvement.CaSE REpoRtSClinical data for the 4 patients are shown in table SI (available from http://www.medicaljournals.se/acta/content/?doi=10.2340/00015555-1433). all patients presented hypertrophic cutaneous LE of longstanding duration. only patient 1 had multiple active cutaneous LE lesions at the time of examination (Fig. 1A, B). Skin lesions in patients 2 and 4 were mainly residual, with intense scarring. The lesion in patent 3 was confined to the lip area (Fig. 1C–F). Histopathology of biopsied oral lesions revealed marked hyperkeratosis, presence of a granular layer, focal hydropic degeneration of the basal layer, necro-tic basal keratinocytes, and melanophages of variable intensity (Fig. 1G, H). There were no signs of kerati-nocytic atypia. Dermal components included dilated papillary vessels, mucin, and scarce inflammatory in-filtrate, except for case 2, in which inflammatory cells were abundant in a superficial and deep pattern. Direct immunofluorescence findings were non-diagnostic.In patients 1, 2 and 3, LE activity was more pronoun -ced on the tegument. In addition to skin lesions, patient 4 had a several year history of lupus arthritis.DISCuSSIonthere are few published case series of oral compromise in LE. of these, some uniformity can be observed in the clinical picture, despite the great variety of descriptive terms employed (“oral discoid lesion”, “chronic pla-que”, “lupus cheilitis”, “acute ulcer”, “erythematous ulcer”, “ulcerated plaque”, “pebbly red areas”, “ho-neycomb lesions”, “keratotic white lesion”, “purpuric lesion”, and “diffuse palatal petechial erythema”, among others); a clinical characterization based on established dermatological criteria would be useful. Our group has proposed a method that simply compares mucosal LE lesions with their cutaneous counterparts (acute, subacute and chronic mucosal LE in analogy to acute, subacute and chronic cutaneous LE) in order to better understand those lesions (3).We describe here 4 patients with what is known as hypertrophic/verrucous LE (a subtype of chronic cuta -