|
Melanoma simulating Clark nevus |
|
)
|
)
|
|
|
|
)
|
)
|
Melanoma simulating Spitz nevus In this example of early invasive melanoma the globular pattern with hints of a blue-whitish veil is suggestive of a Spitz nevus, globular type |
|
)
|
)
|
Melanoma simulating blue nevus Note the few irregular dots/globules within this otherwise homogeneously blue-gray pigmented lesion. |
|
)
|
)
|
Melanoma simulating combined nevus The localized, gray-bluish pigmentation corresponding to a pigmented cluster of atypical melanocytes within this hypomelanotic melanoma may be easily interpreted as a combined nevus. |
|
)
|
)
|
Melanoma simulating Unna nevus Nodular melanoma resembling Unna nevus due to the presence of exophytic papillary structures. The few irregular dots/globules are the only clue for a correct diagnosis |
|
)
|
)
|
Melanoma simulating Miescher nevus Diffuse pigmentation and rare comedo-like openings are suggestive for Miescher nevus in this otherwise featureless nodular melanoma. |
|
)
|
)
|
Melanoma simulating recurrent nevus In this persistent melanoma a light-brown to gray-reddish diffuse pigmentation is visible adjacent to a surgical scar. Nearly identical dermoscopic features are commonly found in recurrent nevi. |
|
)
|
)
|
Melanoma simulating reticulated lentigo In the absence of other melanoma-specific dermoscopic criteria, the atypical pigment network structures of this irregularly outlined lesion may easily lead astray to the diagnosis of reticulated lentigo. |
|
)
|
)
|
Melanoma simulating actinic lentigo Melanoma in situ (lentigo maligna) exhibiting a quite typical pigment network with only focal irregular pigmentation. Because of its irregular outline and rather sharp circumscription, this lesion may be diagnosed as an actinic lentigo. |
|
)
|
)
|
Melanoma simulating basal cell carcinoma Hypomelanotic melanoma simulating basal cell carcinoma due to the presence of more or less irregularly outlined brownish-gray areas resembling leaf-like areas. Also the vascular structures, albeit not arborizing, may erroneously confirm the diagnosis of basal cell carcinoma |
|
)
|
)
|
Melanoma simulating seborrehic keratosis Melanoma in situ of the face (lentigo maligna) resembling a reticulated type of seborrheic keratosis. Note the delicate annular-granular structures representing the only clue for a correct diagnosis. |
|
)
|
)
|
Melanoma simulating seborrehic keratosis This verrucous melanoma was interpreted as an acanthotic type of seborrheic keratosis because of the presence of numerous comedo-like openings. The lesion was removed only because the patient, a physician himself, insisted on the surgical excision. |
|
)
|
)
|
Melanoma simulating hemangioma This melanoma can be easily missed because the numerous red globules resembling red lacunas are suggestive of hemangioma. The blue-whitish veil clearly visible within this lesion was not assessed as a melanoma-specific criterion because of the association with the pretended red lacunas |
|
)
|
)
|
Melanoma simulating pyogenic granuloma Note the hemorrhagic crust somehow mimicking red lacunas that in the absence of melanoma-specific dermoscopic criteria was leading to the diagnosis of pyogenic granuloma |
|
)
|
)
|
Featureless melanoma A particular type of melanoma devoid of any distinctive dermoscopic criteria has been called featureless melanoma’ by Menzies [Arch Dermatol 1996]. Only because this lesion was not diagnostic at all, was a diagnostic excision performed. |
|
)
|
)
|