Benign naevi Flashcards
Diffuse reticular is a dermoscopic naevi pattern
Diffuse network composed of pigmented lines and hypopigmented holes with minimal variation in size and colour
Network tends to fade towards periphery
Common pattern in naevi with prominent junctional component
Patchy reticular is a dermoscopic naevi pattern
Focal patches of reticular pattern distributed symmetrically within naevus, patches separated by homogenous structureless areas
Peripheral reticular with central hypopigmentation is a dermoscopic naevi pattern
Uniform typical network at the periphery of the lesion with a central homogenous and hypopigmented structureless area
Common pattern in acquired naevi in fair skin individuals
10 dermoscopic naevi pattern
Peripheral reticular with central hyperpigmentation is a dermoscopic naevi pattern
Uniform typical network at the periphery of the lesion with a central homogenous and hyperpigmented structureless area/blotch
Common pattern in acquired naevi in dark skin individuals
Homogenous is a dermoscopic naevi pattern
Pattern reveals a diffuse homogenous structureless pattern
May appear as:
grey-blue as in blue naevi
brown as in congenital naevi
tan-pink as in acquired naevi in fair skin individuals
Peripheral globules with central network or homogenous area including the starburst pattern, is a dermoscopic naevi pattern
Correlates with active radial growth phase
Peripheral component can manifest as:
Single row of globules in actively growing dysplastic naevi
Multiple rows or globules creating a starburst pattern in Spitz naevi, or dysplastic naevi with spitzoid features
Streaks (classic starburst pattern) giving the appearance of an exploding star as in Spitz/Reed naevi
Peripheral reticular with central globules is a dermoscopic naevi pattern
Uniform typical network at the periphery of the lesion with central globules
Common pattern in naevi with congenital pattern on histo
Globular is a dermoscopic naevi pattern
Globules of similar shape, size and colour distributed throughout the lesion
Large and angulated globules create a cobblestone pattern as in come congenital naevi
Two-component is a dermoscopic naevi pattern
A combination of two patterns, with one half of the lesion manifesting one pattern and the other half another pattern
Most common is the reticular-globular pattern
Symmetric Multicomponent is a dermoscopic naevi pattern
A combination of 3 or more patterns distributed symmetricallyin at least 1 axis
Most patients tend to manifest a predominant naevi pattern with 1 or 2 patterns displayed
Facilitates finding a melanoma
The 10 dermoscopic naevi patterns are:
Diffuse reticular
Patchy reticular
Peripheral reticular with central hypopigmentation
Peripheral reticular with central hyperpigmentation
Homogenous
Peripheral globules/starburst
Peripheral reticular with central globules
Globular
Two-component
Symmetric Multicomponent
