What is thrombocytopenia-absent radius?
General Discussion. Thrombocytopenia-absent radius (TAR) syndrome is a rare disorder that is present at birth (congenital). It is characterized by low levels of platelets in the blood (thrombocytopenia) and absence (aplasia) of the long, thin bones of the forearms (radii).
What causes Exanthem rash?
An exanthem is a rash or eruption on the skin. “Viral” means that the rash or eruption is a symptom of an infection due to a virus. Viral exanthems can be caused by many viruses, such as enteroviruses, adenovirus, chickenpox, measles, rubella, mononucleosis, and certain types of herpes infection.
Can you have roseola without symptoms?
It is entirely possible that your child (or you as a child) had the virus that causes roseola without knowing it. Kids get fevers for lots of reasons. If your child does not get a roseola rash (two-thirds of kids don’t), you may chalk up the fever to some other illness and never know that your child has had roseola.
What is fourth disease?
Observed and described between 1884 and 1900, “fourth disease” (Dukes disease) followed measles, scarlet fever, and rubella as the fourth clinically characterized childhood exanthem.
What is acquired Amegakaryocytic thrombocytopenia?
Acquired amegakaryocytic thrombocytopenia is a rare blood disorder that causes severe thrombocytopenia with no other blood abnormalities. It is so named because the level of large bone marrow cells that produce platelets , called megakaryocytes, are significantly lower or absent.
How long is viral Exanthem contagious?
The virus is highly contagious from 1to 2 days before the rash appears and until all the blisters have formed scabs. It is spread by airborne respiratory droplets or through direct contact with blister fluid. The incubation period is 10 to 21 days.
Can roseola be itchy?
Roseola usually is not itchy. If your child’s rash is itchy, here are some tips. Use a moisturizing cream (such as Eucerin) once or twice daily.
How long is roseola contagious to humans?
Roseola is contagious. It has an incubation period (from time of exposure to the virus to symptom development) from about five to 14 days. The individual remains contagious until one or two days after the fever subsides.