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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]
Individual purpura measure 3–10 mm (0.3–1 cm, 3 ⁄ 32-3 ⁄ 8 in), whereas petechiae measure less than 3 mm. [2] A non-blanching rash can be a symptom of bacterial meningitis , [ 3 ] but this is not the exclusive cause.
Purpura (/ ˈ p ɜːr p jʊər ə / [1]) is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, or other causes. [2]
ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. [1]
The dermis is the layer of skin between the epidermis and subcutaneous tissue, and comprises two sections, the papillary dermis and the reticular dermis. [10] The superficial papillary dermis interdigitates with the overlying rete ridges of the epidermis, between which the two layers interact through the basement membrane zone. [10]
Initially a vascular lesion is usually noted on the skin which can be firm and hard (indurated). Areas of tiny red dots (petechiae) can appear around the lesion or on other parts of the body. If the vascular lesion is internal, these petechiae and bruising can be seen on the skin. Bruising and spontaneous bleeding can also occur.
If you experience difficulty breathing, develop a severe cough, notice thick green or yellow mucus, run a fever, and/or feel extremely fatigued If your symptoms worsen instead of improve over time
There are numerous causes of palpable purpura, such as autoimmune diseases, drug reactions, vaccinations, and infections.The most common infectious causes are N. gonorrhoeae, S. aureus, and N. meningitides, however palpable purpura has also been caused by Mycoplasma spp., Rickettsiae, Mycobacterium, and very rarely by Treponema pallidum, Brucella spp., Yersinia, Campylobacter, and Bartonella.