Dermoscopic Characteristics of Benign Melanocytic Lesions
| Diagnosis (Level 1 or 2) Feature included as a learning objective (>70% positive responses) | Round 1: % Positive Responses* (n = 33) | Round 2: % Positive Responses* (n = 30) |
|---|---|---|
| Overview of benign nevi patterns (level 1) | ||
| Diffuse reticular network | 100.0% | — |
| Peripheral reticular network with central hypopigmentation | 100.0% | — |
| Peripheral reticular network with central hyperpigmentation | 100.0% | — |
| Globular pattern | 100.0% | — |
| Patchy reticular network | 97.0% | — |
| Homogenous (tan, brown, blue, or pink) | 93.9% | — |
| Peripheral reticular network with central globules | 90.9% | — |
| Central network with evenly distributed peripheral globules | 87.9% | — |
| Symmetric multicomponent pattern | 75.8% | — |
| Symmetric two-component pattern | 69.7% | ↓ 60.0% |
| Intradermal nevi (level 1) | ||
| Comma-shaped (curved) vessels | 93.9% | — |
| Homogenous (structureless) brown/tan/pink pigmentation | 93.9% | — |
| Peripheral network | 72.7% | — |
| Globules | 87.9% | — |
| Blue nevi (level 2) | ||
| Homogenous blue/blue-gray pigmentation | 100.0% | — |
| Well-circumscribed lesion | 93.9% | — |
| Spitz nevi (level 2) | ||
| Starburst pattern with tiered globules/streaks and regularly spaced pseudopods at the periphery (radial streaming) | 87.9% | — |
| Vascular pattern (pink homogenous with dotted vessels) | 75.8% | — |
| Congenital melanocytic nevi (level 2) | ||
| Cobblestone pattern/globular pattern | 93.9% | — |
| Reticular network | 90.9% | — |
| Homogenous background pigmentation | 87.9% | — |
| Hypertrichosis | 78.8% | — |
| Perifollicular hyper-/hypopigmentation | 69.7% | ↓ 60.0% |
| Recurrent/persistent nevi (level 2) | ||
| Pigment within the scar, not extending beyond | 81.8% | — |
| Halo nevi (level 2) | ||
| Encircling/surrounding depigmentation/pallor | 93.9% | — |
| Central reticulation with peripheral white depigmentation | 78.8% | — |
| Benign nevi patterns, globular, homogenous | 78.8% | — |
↵* % of panelists who indicated on a 5-point Likert scale that they “strongly agree” (5) or “agree” (4) with the feature being included in dermoscopy training for primary care providers.