1. Differential Diagnosis Patient’s FeaturesErisipelasCellulitis Etiologytrimethoprim- sulfamethoxazole medication beta hemolytic group A Streptococcal (Occ. GBS) Streptococcus pyogenes, Staphylococcus aureus EpidemiologyAge: 27 yo Sex: F Newborn Postpartum women Patients with breaks in the skin High risk in immunocompromi- sed patients and in children CourseAcute; few hours after intake of drugs Acute ProdromesMalaise for several hours, chills, high fever, headache, vomiting, and joint pains Malaise, chills, fever

2. Differential Diagnosis Patient’s FeaturesErysipelasCellulitis Eruption  Generalized  Palms and lip mucosa  Face and legs  Begins in the cheeck near the nose or in front of the lobe of the ear and spreads upward to the scalp  Local erythema  Tinea pedis-most common portal of entry

3. Differential Diagnosis Patient’s FeaturesAcute UrticariaErythema Multiforme Typical Lesionsred papules with dusky centers. Ulcers in the lip mucosa  May vary from transient hyperemia followed by slight desquamation to intense inflam.  Erythematous patch with peripheral extension  Scarlet, hot to touch, brawny,swollen  Raised and sharply demarcated.  Erythema rapidly becomes intense and spreads  Area becomes infiltrated  Pits on pressure  Central part becomes nodular and surmounted by a vesicle that ruptures and discharges pus and necrotic material

4. Complications  Septicemia  Deep cellulitits  Lymphangitis  Gangrene  Metastatic abscess  Sepsis Patient’s FeaturesAcute UrticariaErythema Multiforme Differential Diagnosis

5. Erysipelas

6. Cellulitis