• Enzo Errichetti
  • Giuseppe Stinco


The term mastocytosis encompasses different disorders characterized by mast cell proliferation and accumulation in one or more organs. The dermatoscopic pattern of cutaneous mastocytosis varies according to the clinical subtype. Urticaria pigmentosa typically displays homogeneous light-brown blots often containing pigmented reticular structures; telangiectasia macularis eruptiva perstans is generally characterized by reticular vessels on an erythematous/brownish base (“reticular vascular” pattern), sometimes associated with a brownish network; mastocytoma commonly features diffuse or multifocal yellow-orange discoloration (yellow-orange blots).


Mastocytosis Urticaria pigmentosa Telangiectasia macularis eruptiva perstans Mastocytoma Yellow-orange blots 


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Medical Area, Institute of DermatologyUniversity of UdineUdineItaly

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