Zmiany skórne w przypadku wysypki na ciele możemy opisać jako:

plamki na skórze – są to wykwity leżące na poziomie skóry, różniące się tylko kolorem od otoczenia.

Na podstawie wielkości wyróżniamy

zmiany drobno- (1–2 mm),
średnio- (poniżej 5 mm)
i gruboplamiste (powyżej 5 mm),

grudki na ciele – zmiana, która wystaje ponad powierzchnię skóry.

- https://wylecz.to/choroby-skory/czerwona-wysypka-na-ciele-co...

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An alphabet of rashes, itches and cooties

Descriptors

• Macule: flat, nonpalpable circumscribed area of change in the skin color, may be any size.
• Papule: small solid elevation of skin generally < 5 mm in diameter.
• Plaque: palpable, plateau-like elevation of skin > 5mm in diameter.
• Nodule: palpable, solid, round, or ellipsoidal lesion > 5 mm diameter.
• Vesicle (blister): circumscribed, elevated lesion that is < 5 mm in diameter containing serous (clear) fluid.
• Bulla: A vesicle with a diameter > 5 mm.
• Pustule: superficial, elevated lesion that contains pus.
• Cyst: an epithelial lined cavity containing liquid or semisolid material.
• Wheal: transitory, compressible papule or plaque of dermal edema

- https://www.urmc.rochester.edu/MediaLibraries/URMCMedia/cent...

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Macule: Flat, nonpalpable lesion with color change (hyper- or hypopigmented, erythematous) less than 5-10mm (larger than 5-10mm  patch) (freckles, flat nevi)

Papule: Raised lesion less than 5-10 mm (larger than 10mm -> plaque or nodule) (wart, actinic keratosis)

Patch: a larger flat, nonpalpable lesion – or macule that is > 1cm, (some will still call these macules)

Petechiae: small (< 5mm) hemorrhagic (red-purple) non-blanchable discolorations (>5mm ->purpura) (meningococcemia, Rocky Mountain Spotted Fever, DIC, viral exanthem)

Plaque: A flat topped, elevated area of the skin larger than 5-10mm, may be formed from coalescence of papules, (psoriasis, seborrheic keratosis)

- https://camls-us.org/wp-content/uploads/2018/05/Handout-Fund...




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Note added at 5 hrs (2021-02-15 13:11:50 GMT)
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The term maculopapular rash typically implies an acute and generalised eruption.

Morphological terms:

Macule: a flat skin lesion ≤1 cm in greatest diameter. When macules are >1 cm, the appropriate term is patch.

Papule: a raised bump ≤1 cm in diameter. When papules are >1 cm in size, the appropriate term is plaque (palpable lesions elevated above the skin surface) or nodule (a larger, firm papule with a significant vertical dimension).

- https://bestpractice.bmj.com/topics/en-gb/774