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Bullae

Definition

Bullae are large blisters on the skin that are filled with clear fluid. Many different skin conditions can cause bullae to form. They can be caused by infection or inflammation of the skin.

Gallery

Bullous pemphigoid - close-up of tense blisters
Pemphigus is classified as one of the blistering diseases. These is a close-up picture of typical lesions. Very small blisters are called vesicles. Larger blisters, like these, are called bullae.
Bullous pemphigoid - close-up of tense blisters
Pemphigus is classified as one of the blistering diseases. These is a close-up picture of typical lesions. Very small blisters are called vesicles. Larger blisters, like these, are called bullae.
Bullous pemphigoid - close-up of tense blisters
Pemphigus is classified as one of the blistering diseases. These is a close-up picture of typical lesions. Very small blisters are called vesicles. Larger blisters, like these, are called bullae.

References

Dinulos JGH. Principles of diagnosis and anatomy. In: Dinulos JGH, ed. Habif's Clinical Dermatology: A Color Guide in Diagnosis and Therapy. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 1.

Dinulos JGH. Vesicular and bullous diseases. In: Dinulos JGH, ed. Habif's Clinical Dermatology: A Color Guide in Diagnosis and Therapy. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 16.

Last reviewed October 20, 2022 by Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team..

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