WebMar 2, 2024 · Rash-Like Spots. Petechiae are very small (pinpoint) red dots on the skin that form a skin rash due to an infection, allergic reaction, or other cause. These spots are especially common in children and may be found on the arms, legs, stomach, and buttocks. 1 They also affect mucous membranes, such as in the mouth. WebSep 12, 2024 · Petechiae are pinpoint non-blanching spots that measure less than 2 mm in size, which affects the skin and mucous membranes. A non-blanching spot is one that does not disappear after applying brief pressure to the area. Purpura is a non-blanching spot that measures greater than 2 mm. Petechial rashes are a common presentation to the …
The Generalized Rash: Part I. Differential Diagnosis AAFP
WebMar 15, 2010 · Sudden onset of high fever without rash or other symptoms in a child younger than 3 years; as fever subsides, pink, discrete, 2- to 3-mm blanching macules … WebApr 4, 2024 · Urticaria is an inflammatory skin disorder that may occur in isolation or associated with angioedema and/or anaphylaxis. Clinically, it is characterized by the presence of smooth, erythematous or blanching, itchy swelling, called wheals or hives, which greatly vary in size and shape and last less than 24 h before fading to leave … jaxon hercules free run
A Reversible Cause of Cutaneous Rash in a Patient With Alcohol ...
WebPatients with a petechial or purpuric eruption, fever, and altered sensorium represent a medical emergency; the differential diagnosis is listed in Box 24.1. Between 50% and 75% of children with meningococcemia have a purpuric or petechial rash, principally on the trunk and lower extremities (Figs 24.5, 24.6, and 24.7). Petechiae are found in ... WebJun 25, 2024 · Petechiae may also be caused by noninfectious medical conditions. Examples include: Vasculitis. Thrombocytopenia. Leukemia. Scurvy (vitamin C deficiency) Vitamin K deficiency. Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis. WebMost often, a rash affecting the lower legs is a type of dermatitis. ... Differential diagnosis of leg ulcers; Leg ulcers. Management of lower leg rashes. Management depends on making a correct diagnosis. General … low r value insulation