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a minute, pinpoint, nonraised, perfectly round, purplish red spot caused by intradermal or submucous hemorrhage, which later turns blue or yellow. adj., adj pete´chial.
n. pl. pete·chiae (-kē-ī′)
A small purplish spot on a body surface, such as the skin or a mucous membrane, caused by a minute hemorrhage and often seen in typhus.
pe·te′chi·ate (-ĭt) adj.
petechiaPlural, petechiae Dermatology A pinpoint, unraised, round red spot under the skin caused by RBCs leaking from capillaries
petechiae(pē-tē′kē-ē) petechia [It. petecchia, skin spot]
1. Small, purplish, hemorrhagic spots on the skin that appear in patients with platelet deficiencies (thrombocytopenias) and in many febrile illnesses. See: illustration
2. Red spots from the bite of a flea.
A tiny, purplish-red spot on the skin. Caused by the leakage of a bit of blood out of a vessel and under the skin.