PMC4325693_01
June 2014:Dermatoscopy showing a central focus of blue/grey pigmentation consistent with a clonal nevus. (Copyright:  2014 Inskip, Magee.)
dp0501a10g001.jpg
PMC4325693_01_dp0501a10g001.jpg
f1-dp0501a10
It was a uniform pale tan color with a centrally located blue, grey circular area 1 mm in diameter (Figure 1).
March 2013:Dermatoscopy of the same lesion 15 months previous. Clinically this is a homogeneous benign melanocytic nevus with no trace of central blue/grey pigmentation. (Copyright:  2014 Inskip, Magee.)
dp0501a10g002.jpg
PMC4325693_01_dp0501a10g002.jpg
f2-dp0501a10
There had just been a clinically banal benign melanocytic nevus (Figure 2).
Low power image shows a well circumscribed, wedge-shaped intradermal melanocytic proliferation comprised predominantly of bland nevus cells, however, with a central zone of more epithelioid cells, surrounded by a rim of hyperpigmented melanophages. (Copyright:  2014 Inskip, Magee.)
dp0501a10g003.jpg
PMC4325693_01_dp0501a10g003.jpg
f3-dp0501a10
The findings were consistent with a benign clonal nevus (Figures 3 to 6).
Intermediate power view of central clone of epithelioid cells rimmed by melanophages and background of ordinary bland nevus cells. (Copyright:  2014 Inskip, Magee.)
dp0501a10g004.jpg
PMC4325693_01_dp0501a10g004.jpg
f4-dp0501a10
The findings were consistent with a benign clonal nevus (Figures 3 to 6).
Higher power view of more eosinophilic epithelioid central clone of melanocytes with interspersed melanophages. Background smaller basophilic nevus cells are seen at the periphery. (Copyright:  2014 Inskip, Magee.)
dp0501a10g005.jpg
PMC4325693_01_dp0501a10g005.jpg
f5-dp0501a10
The findings were consistent with a benign clonal nevus (Figures 3 to 6).
Further higher power view of more eosinophilic epithelioid central clone of melanocytes with interspersed melanophages. (Copyright:  2014 Inskip, Magee.)
dp0501a10g006.jpg
PMC4325693_01_dp0501a10g006.jpg
f6-dp0501a10
The findings were consistent with a benign clonal nevus (Figures 3 to 6).