Hematology-Oncology Skin Heme

Petechial Rash

Petechiae and purpura are the result of extravasation of blood from the vasculature into the skin or mucosa, usually occurring in the dependent regions of the body. Petechiae are pinpoint hemorrhages ≤2 mm in size, purpura are 2 mm to 1 cm in size, and ecchymoses are >1 cm in size. These lesions do not blanch with pressure.

Hematology Oncology

Patient 1

This is a young woman who presented with dysuria, vaginal discharge, and a petechial/purpuric rash involving the distal lower extremities. Urine gonococcal PCR returned positive.