patch

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[1][2]

Introduction

In dermatology:

  • large (> 1-2 cm)* flat lesion with color different from the surrounding skin
  • patch differs from a macule (< 1-2 cm)* only in size

* 1 cm[2], 2 cm[1]

Additional terms

References

  1. ↑ Jump up to: 1.0 1.1 Harrison's Principles of Internal Medicine, 13th ed. Isselbacher et al (eds), McGraw-Hill Inc. NY, 1994, pg 271
  2. ↑ Jump up to: 2.0 2.1 Medical Knowledge Self Assessment Program (MKSAP) 15, 18. American College of Physicians, Philadelphia 2009, 2018.
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