Yellow and orange in cutaneous lesions: clinical and dermoscopic data

Abstract

Colour of the lesions is clue for the clinical and dermoscopic diagnosis. Nevertheless, we have detected in the literature an uneven relevance of the colours as a diagnostic criterion. Thus, while red, brown and blue have taken important role in dermoscopic descriptions, other like yellow and orange have been given much less importance. This article reviews those lesions in which the yellow and orange colours have been considered constitutive or essential for diagnosis, and on the other hand it emphasizes the entities in which may appear these colours and are not well reflected in the literature. We believe that organize all this information will help us in a better understanding of these pathologies.

Clinical and dermoscopic features associated with lichen planus‐like keratoses that undergo skin biopsy: A single‐center, observational study

“…Orange color has also been reported in skin conditions that were not included among our non-LPLK comparator group, such as xanthomas, granulomatous diseases, and pigmented purpuric dermatosis. [24][25][26] Notably, we did not find any significant differences in the prevalence of BCC dermoscopic features between non-pigmented LPLK and non-LPLK; this finding suggests that increased detection pressure for early presentations of non-pigmented superficial basal cell carcinoma is likely to be associated with increased biopsies for LPLK, which is consistent with the authors' personal experience. The finding that LPLK is frequently misdiagnosed as basal cell carcinoma and the prevalence of BCC-associated dermoscopic features seen in LPLKs from our study supports this hypothesis.…”

Salmon-colored and White Areas on Dermoscopy as Supportive Findings in the Diagnosis of Primary Cutaneous Marginal Zone Lymphoma

“…Our observation confirms that a salmon-colored area upon dermoscopy is typical even if not exclusive of PCBCL. In fact, it brings to mind the orangish-yellowish areas observed in granulomatous dermatoses such as sarcoidosis, lupus vulgaris, and granulomatous rosacea, where also linear branching vessels are seen [6,7], while granuloma annulare shows peripheral structureless reddish-yellowish-orange areas with variable blurry vessels [8,9]. It is difficult to correlate the salmon color of PCBCL with pathology; an explanation could reside in the increased vascularization inside the dense nodular neoplastic lymphoid infiltrate in the mid and deep dermis (Figure 2C).…”

Dermoscopy of primary cutaneous B‐ and T‐cell lymphomas and pseudolymphomas presenting as solitary nodules and tumors: a case‐control study with histopathologic correlation

“…Based on our experience evaluating cutaneous lymphomas, and previous articles of Mascolo et al, Geller et al, and Bombonato et al, we evaluated the following dermoscopic features: (i) vessels (further classified as arborizing, dotted, etc and whether they were in‐focus or out‐of‐focus); (ii) presence of orange (salmon) background; (iii) presence of dilated follicular openings; (iv) organized or disorganized lesion; (v) any other relevant feature arising in image evaluation. We also evaluated for the dermoscopic criteria as per the latest consensus, and we evaluated lesion predominant color under dermoscopy (black, brown, blue, pink, orange, and white) . Organized vs. disorganized (i.e., disorganized or asymmetric distribution of colors and/or structures) lesions were defined as per Rogers et al in the TADA algorithm …”