A spectrum of diseases with the dermatoscopic rainbow pattern

Al-Sukhni, Layan; Mui, Uyen Ngoc; Tarbox, Michelle

doi:10.1016/j.jdcr.2022.01.001

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…9 The histopathological correlation of this dermoscopic feature is not established. 10 As mentioned earlier, RP is increasingly found in many vascular and non-vascular dermatoses, diagnosis should not be counted only on the presence of RP; rather ,other relevant dermoscopic features and clinical context are taken into consideration. RP is observed in basal cell carcinoma (Figure 13a), dermatofibroma, pyogenic granuloma (Figure 13b), malignant melanoma, etc.…”

Section: Rainbow Phenomenonmentioning

confidence: 99%

A Kaleidoscopic Navigation Through Different Shades of Colors in Dermoscopy

Ankad,

Adya

2024

Nepal J Dermatol Venereol & Leprol

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Dermoscopy has traveled a long way from its initial application limited to tumoral dermatology, especially melanocytic tumors, to its indispensable role in general dermatology as well as in procedural dermatology. Dermoscopy primarily serves as a diagnostic tool by virtue of its ability to visualize skin surfaces and sub-surface structures in a magnified and illuminated manner. Colors are critical and significant in dermoscopy. They are imparted by different chromophores in skin tissue. Hence, recognition of diverse colors and their variations is of paramount importance in the analysis of a dermoscopic image. In this review, we describe the various colors observed in dermoscopy, emphasizing the same in order to interpret them appropriately for an accurate diagnosis.

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Section: Rainbow Phenomenonmentioning

confidence: 99%

A Kaleidoscopic Navigation Through Different Shades of Colors in Dermoscopy

Ankad,

Adya

2024

Nepal J Dermatol Venereol & Leprol

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Nódulo sangrante de rápido crecimiento en el antebrazo: diagnóstico y comentario

Algarra-Sahuquillo

Ramos‐Rodríguez

Hernández-León

2023

Piel

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“Chasing Rainbows” Beyond Kaposi Sarcoma’s Dermoscopy: A Mini-Review

Karampinis,

Toli,

Pappa

et al. 2024

Dermatopathology

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The dermoscopic rainbow pattern (RP), also known as polychromatic pattern, is characterized by a multicolored appearance, resulting from the dispersion of polarized light as it penetrates various tissue components. Its separation into different wavelengths occurs according to the physics principles of scattering, absorption, and interference of light, creating the optical effect of RP. Even though the RP is regarded as a highly specific dermoscopic indicator of Kaposi’s sarcoma, in the medical literature, it has also been documented as an atypical dermoscopic finding of other non-Kaposi skin entities. We aim to present two distinct cases—a pigmented basal cell carcinoma (pBCC) and an aneurysmatic dermatofibroma—that exhibited RP in dermoscopy and to conduct a thorough review of skin conditions that display RP, revealing any predisposing factors that could increase the likelihood of its occurrence in certain lesions. We identified 33 case reports and large-scale studies with diverse entities characterized by the presence of RP, including skin cancers (Merkel cell carcinoma, BCC, melanoma, etc.), adnexal tumors, special types of nevi (blue, deep penetrating), vascular lesions (acroangiodermatitis, strawberry angioma, angiokeratoma, aneurismatic dermatofibromas, etc.), granulation tissue, hypertrophic scars and fibrous lesions, skin infections (sporotrichosis and cutaneous leishmaniasis), and inflammatory dermatoses (lichen simplex and stasis dermatitis). According to our results, the majority of the lesions exhibiting the RP were located on the extremities. Identified precipitating factors included the nodular shape, lesion composition and vascularization, skin pigmentation, and lesions’ depth and thickness. These parameters lead to increased scattering and interference of light, producing a spectrum of colors that resemble a rainbow.

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A spectrum of diseases with the dermatoscopic rainbow pattern

Cited by 3 publications

References 5 publications

A Kaleidoscopic Navigation Through Different Shades of Colors in Dermoscopy

A Kaleidoscopic Navigation Through Different Shades of Colors in Dermoscopy

Nódulo sangrante de rápido crecimiento en el antebrazo: diagnóstico y comentario

“Chasing Rainbows” Beyond Kaposi Sarcoma’s Dermoscopy: A Mini-Review

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