Difference between Petechiae, Purpura and Ecchymoses

  • Petechiae, Purpura and Ecchymoses are the three terms that refer to bleeding that occurs in the skin. the term “petechiae” refers to smaller lesions. “Purpura” and “ecchymoses” are terms that refer to larger lesions. In all situations, petechiae, ecchymoses, and purpura do not blanch when pressed
  • Petechiae are tiny, usually measuring less than an eighth of an inch (about 3 millimeters). Larger varieties of these types of spots are called Purpura and Ecchymoses.
Petechiae

Petechiae

Pinpoint Petechiae

Pinpoint Petechiae

 

The palpable purpura on the foot of this nearly 3-year-old boy are associated with the disease Henoch-Schönlein Purpura.

The palpable purpura on the foot of this nearly 3-year-old boy are associated with the disease Henoch-Schönlein Purpura.

 

Petechiae vs Purpura

Petechiae vs Purpura

Periorbital Ecchymoses

Periorbital Ecchymoses

Ecchymoses in arm

Ecchymoses in arm


Sources:
www.pediatrics.wisc.edu

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