Vesiculobullous Conditions Flashcards
(10 cards)
Difference between vesicle and bulla?
- Vesicle: Small fluid-filled blister, < 0.5–1 cm.
- Bulla: Large fluid-filled blister, > 0.5–1 cm.
- Both contain clear fluid; difference is mainly size.
Why Vesicullobulous lesions are better called ulcero-vesiculo-bulous lesions?
Because vesiculobulous lesions start as Vesicle/Bulla but they rupture early and appear as ulcerative/erosive areas
Whats Ulcer?
Break in the continuity of the surface epithelium of the skin or the mucous membrane to involve the underlying connective tissue as a result of micro molecular cell death of the surface epithelium or its traumatic removal.
What are macules?
Lesions that are flush with adjacent mucosa and are noticeable because of their difference in color from normal skin or mucosa.
What are papules?
Lesions raised above the skin or mucosal surface that are smaller than 1 cm in diameter.
Raised lesions greater than 1 cm in diameter, essentially large papules. are called?
Plaques
Lesions present within the dermis or mucosa, which may also protrude above the skin or mucosa, forming a characteristic dome-shaped structure.
Nodules
Red lesions often caused by rupture of vesicles or bullae, or trauma, and are moist on the skin.
Erosions
Blisters containing purulent material that appear yellow.
Pustules