- The technical umbrella term is usually "bullous", rather than "vesicular" dermatitis/eruptions. Picture 12: Macule measures less than 1 cm. Cyst — papule or nodule that contains fluid or semi-fluid material so is fluctuant. These include macules, papules, nodules, plaques, vesicles, bullae, pustules, and wheals. The fluid inside these vesicles may be clear, white, yellow, or mixed with blood. Photo from Wright State University Dermatology Macular vs Papular Rash: Changes in the skin color or consistency without any elevation from the skin level are known as macules. A nodule is a circumscribed elevation of the skin larger than a papule (1 cm). To differentiate these skin lesions from each other, here are the pictures of each. Margins of the lesion are elevated. A papule is a raised area of skin tissue that’s less than 1 centimeter around. -papule -plaque -nodule -tumor -vesicle -bulla -pustule -cyst Secondary Lesions -scale -crust -excoriation -lichenification -maceration -fissure -erosion -ulcer Distinct Lesions -wheal/hive -burrow -comedone -atrophy -keloid -fibrosis -petechiae -telangiectasis -milium: Papule. - "Vesicles" and "bullae" works for an expert audience. Plaque — a circumscribed, palpable lesion more than 1 cm in diameter; most plaques are elevated. Vesicles are small, fluid-filled sacs that can appear on your skin. Elevation: Margins of the lesion are not elevated. Maculopapular rash may be mistakenly called macule, papule, patch, nodule, plaque, vesicle, or pustule. A papule can have distinct or indistinct borders. 10 An example is anthrax, with its evolving cutaneous lesion from painless papule to ulcer with surrounding vesicles. A papule is a raised white lesion that is essentially less than 0.5cm in diameter. Vesicles are tiny sacs that transport material within or outside the cell. Vesicular lesions (Table 132.11) can be considered in three clinical categories. Remember: Changes with size Changes with depth Macules patches Erosion ulcer Papules plaques (or nodules) Vesicles … Papules P. Papules are circumscribed, solid elevations of the skin, up to 1 cm in diameter. It can appear in a variety of shapes, colors, and sizes. (>10mm bulla) (herpes, varicella) Wheal or hive: A localized edematous plaque-like lesion, somewhat irregular and transient. Overview. Plaques may result from a coalescence of papules. Vesicle: Well circumscribed fluid-filled lesion up to 5-10mm. - Anything that develops out of a papule is usually a vesicle (despite "sans bulle" in your text example). They often extend into the dermis, and may be due to inflammatory, neoplastic, or metabolic in origin. -papule -plaque -nodule -tumor -vesicle -bulla -pustule -cyst Secondary Lesions -scale -crust -excoriation -lichenification -maceration -fissure -erosion -ulcer Distinct Lesions -wheal/hive -burrow -comedone -atrophy -keloid -fibrosis -petechiae -telangiectasis -milium: Vesicle. It is a flat blemish like that of a freckle. There are several types of vesicle, including transport vesicles, secretory vesicles, and lysosomes. Vesicles. The first and most common is single or localized lesions. `` bullous '', rather than `` vesicular '' dermatitis/eruptions transport vesicles, bullae, pustules, wheals... Centimeter around transport vesicles, secretory vesicles, bullae, pustules, lysosomes! 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