Friday, April 2, 2021

Lines Parallel

 Lines parallel 

Acral nevus 

Melanoma 

Parallel furrow -  Benign 





Parallel ridge -  Melanoma, Haemorrhage


Hemorrhage Talon Noire Parallel ridge but pared clean with blade



While it is worth noting that Parallel ridge patterns are a dermoscopic sign of melanoma it can be seen in the following benign conditions: 
 Subcorneal hemorrhage or Talon Noir 
Ethnic pigmentation 
Playstation finger 
Self tanning lotion 
Haemangioma

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