Benign nevus pattern
Reticular patterns
Reticular pattern
A lesion with a reticular pattern has typical pigment network throughout the entire lesion.
Patchy reticular pattern
A patchy network pattern is a benign pattern composed of islands of pigment network symmetrically distributed throughout the entire lesion.
Peripheral reticular with central hyperpigmentation
In this benign pattern we see typical pigment network at the periphery of the lesion with a central dark structureless area.
Peripheral reticular with central hypopigmentation
In this benign pattern we see typical pigment network at the periphery of the lesion with a central light structureless area. This is seen very frequently in compound nevi.
Globular patterns
Globular pattern
This is a benign pattern composed of regular globules
Cobblestone pattern
This is a variation of the globular pattern in which the globules are larger and more angulated, resembling a cobblestone
Peripheral reticular with central globules
This is a benign pattern with peripheral reticulation (pigmented network) and regular globules in the center
Homogenous patterns
Homogenous brown pattern
This benign pattern is frequently seen in congenital nevi
Homogenous tan pattern
This benign pattern is frequently seen in nevi in redheads
Homogenous blue pattern
This benign pattern is frequently seen in blue nevi
Patterns with peripheral globules / streaks
Peripheral rim of globules pattern
This pattern is currently seen in growing lesions.
Teared globules at the periphery
This pattern is typically seen in Spitz nevi
Peripheral streaks (starburst pattern)
This pattern is typically seen in Spitz / Reed nevi
Multicomponent patterns
Two component pattern
This pattern can be seen in a kissing nevus (collision of 2 nevi) or in atypical or malignant lesions. We recommend either follow up or excision of these lesions.
Multi component pattern
A multi component pattern consists of a combination of reticular, globular and homogenous pattern in the same lesion. If the multi component pattern is symmetric throughout the lesion we recommend follow up or excision. If the multicomponent pattern is assymetric, we recommend excision of the lesion.
