Superficial Spreading Pattern of Melanoma

  • Guido Massi
  • Philip E. Leboit


Superficial spreading melanoma has been defined as having a “radial growth phase” that often has pagetoid spread, with or without a “vertical growth phase”. Melanomas without a significant intraepidermal component (e.g. wholly in “vertical growth phase”, in this concept) are termed nodular melanoma. Although we consider superficial spreading melanoma and nodular melanoma as belonging to a biological and morphological continuum (Ackerman), we admit that the distinction in two patterns still has some didactical and differential diagnostic utility. We refer to these as patterns rather as types of melanoma.


Merkel Cell Carcinoma Superficial Spreading Paget Disease Sebaceous Carcinoma Amelanotic Melanoma 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Guido Massi
    • 1
  • Philip E. Leboit
    • 2
  1. 1.Department of PathologyCatholic University Medical SchoolRomeItaly
  2. 2.University of CaliforniaSan FranciscoUSA

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