Trauma bulla in Child
They result from chronic pressure or friction on the skin, such as that from wearing tight shoes. They are most common on the palms and soles. They can be skin colored or red / purple from hemorrhage. They are usually painful and have a stinging or burning sensation for 1-2 days after the trauma.
R23.8 – Other skin changes
70010000 – Friction blister
Differential Diagnosis & Pitfalls
- Epidermolysis bullosa simplex – Patients usually have a history of blisters at multiple sites on the hands and feet. Histopathology can confirm diagnosis.
- Burns – Usually more geometric in shape in the area of thermal exposure.
- Bullous arthropod bites – Usually scattered and smaller bullae.
- Bullous fixed drug eruption – Round bullae, usually associated with more inflammation and red-brown plaques underlying the bullae.