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Petechiae on the face and conjunctiva (eyes) are unrelated to asphyxiation or hypoxia. [10] However, the presence of petechiae may be used by police investigators in determining whether strangulation has been part of an attack. The documentation of the presence of petechiae on a victim can help police investigators prove the case. [11]
Palatal petechiae. Petechiae on the soft palate are mainly associated with streptococcal pharyngitis, [6] and as such it is an uncommon but highly specific finding. [7] 10 to 30 percent of palatal petechiae cases are estimated to be caused by suction, which can be habitual or secondary to fellatio. [8]
Petechiae What it looks like : “Petechiae is essentially blood leakage into the skin,” explains Dr. Lal. It looks like small red blotches or tiny, red pinpoint marks on the skin.
In about 50% of cases, small reddish-purple spots called petechiae can be seen on the roof of the mouth. [26] Palatal enanthem can also occur, but is relatively uncommon. [16] A small minority of people spontaneously present a rash, usually on the arms or trunk, which can be macular (morbilliform) or papular. [16]
They measure 3–10 mm, [3] whereas petechiae measure less than 3 mm, and ecchymoses greater than 1 cm. [4] Purpura is common with typhus and can be present with meningitis caused by meningococci or septicaemia. In particular, meningococcus (Neisseria meningitidis), a Gram-negative diplococcus organism, releases endotoxin when it lyses.
Leukoedema lesions disappear when the mucosa is stretched, which helps to differentiate it from other white lesions in the mouth. [2] The differential diagnosis is with leukoplakia , oral candidiasis , oral lichen planus , white sponge nevus , morsicatio buccarum , [ 3 ] hereditary benign intraepithelial dyskeratosis and dyskeratosis congenita.
Despite the alternative name for this condition, "denture sore mouth", it is usually painless and asymptomatic. [2] The appearance of the involved mucosa is erythematous (red) and edematous (swollen), [4] sometimes with petechial hemorrhage (pin-points of bleeding). [1] This usually occurs beneath an upper denture.
More than 800 species of bacteria colonize oral mucus, 1,300 species are found in the gingival crevice, and nearly 1,000 species comprise dental plaque. The mouth is a rich environment for hundreds of species of bacteria since saliva is mostly water and plenty of nutrients pass through the mouth each day.