Pediactic Infectious Rashes =========================== þ Scarlatina - found with some people (mostly kids) with strep infections - classic is sandpapery slightly maculopapular rash over extremities and torso, often with strawberry tongue - Pastia's lines (also known as Pastia's sign): hemorrhagic lines in body creases - circumoral pallor - severe scarlatina also sometimes caused by a staph infection when the staph is infected with a specific phage virus: usually also with conjunctivitis and oral fissuring and crusting þ Measles - usually with conjunctivitis, photophobia, rhinitis, and fever - desquamation þ German Measles (Rubella) - no desquamation þ Kawasaki's Disease (mucocutaneous lymph node syndrome) - arteritis of medium to small vessels - conjunctivitis, red lips, palms and soles, desquamation of the fingertips, various rashes of trunk, and cervical lymphadenopathy - may develop coronary artery involvment (aneurysms, etc.) and myocarditis - no person-person transmission - likely caused by retrovirus - gamma globulin combined with high dose aspirin is somewhat effective in preventing cardiovascular complications. þ Roseola - also "roseola infantum" and "exanthem subitum" - caused by Herpesvirus Type 6 - rash comes on as 3-4 days of fever breaks þ Erythema Infectiousum - "fifth disease," after measles (rubeola), German measles (rubella), scarlatina, and exanthem subitum (roseola) - caused by a parvovirus - may cause aplastic crisis if hx of hemoglobinopathy such as sickle cell disease; normally have some leukopenia with it - classic "slapped cheek" appearance, circumoral pallor, fever, joint aches, extremity rash, all occur together