Maculopapular - Diagnostic Algorithm Pathophysiology: - Catch-all term with a wide range of potential pathophysiologic mechanisms and causative etiologies. - Any process that results in erythroderma, petechiae, or fluid-filled lesions may start as a macule or papule. - Pathophysiology is of little guidance in this category where we must instead rely on the patient’s history and identification of red-flags to exclude dermatologic emergencies. High-risk Features (Identified by dermatologists to stratify urgency of inpatient consultations): - Ill-appearing, vital sign instability - New-onset fever with rash - Mucocutaneous or ocular lesions - Recent introduction of anti-convulsant or sulfa-drug - Skin pain - Immunocompromised #Diagnosis #Dermatology #Rash #Maculopapular #Scaling #Color #Targetoid #Algorithm #Differential #Ddxof
