MICP LECT

• MACULE - Is a flat lesion characterized by change in color of the affected skin
• PAPULES - Raised lesion, solid in consistency of less than 5 mm in diameter
• PLAQUES - Flat with elevated surface (plateau-like) with more than 5 mm diameter
• NODULES - Rounded raised lesions more than 5 mm in diameter
• URTICARIA ( WHEELS OR HIVES ) - Annular or ring-like papules or plaques with pinkish color
• VESICLES - Circumscribed fluid-filled lesions less than 5 mm in diameter
• BULLAE - Circumscribed fluid filled lesions more than 5 mm in diameter
• PUSTULES - Circumscribed, exudate-filled lesions
• PURPURA - Skin lesions due to bleeding into the skin
• PETECHIAE - Less than 3 mm diameter
• ECCHYMOSIS - More than 3 mm diameter
• ULCER - Crater-like lesion that may involve the deeper layers of the epidermis and dermis
• ESCHAR - Necrotic ulcer covered with blackened scrab or crust
• Staphylococcus aureus - Found in the skin and nasopharynx.
• Staphylococcus aureus - Commonly in grape-like cluster
• Staphylococci aureus - Produces enzymes and toxins responsible for its invasiveness and pathogenicity
• Folliculitis - A pyogenic (pus-producing) infection involve hair follicle and heals rapidly after draining the pus.
• Furuncle - An extension of folliculitis and also know as boil.
• Carbuncle - Represent a coalescence of furuncles that extends into subcutaneous tissue with multiple sinus tracts.
• Sty or Hordeolum - Folliculitis occurring at the base of eyelids.
• Impetigo - Infection is common in young children and primarily involves the face and the limbs. It starts as a flattened red spot (macule) which later becomes a pus-filled vesicle that ruptures and form crust.
• Staphylococcal Scalded Skin Syndrome (Ritter's syndrome) - Primarily a disease found in new born and young children. It is manifested by sudden onset of perioral erythema (redness) that covers the whole body.
• Staphylococcus epidermis - Is a part of normal flora of the skin and is commonly associated with "stitch abscess" UTI, and endocarditis.
• Pyoderma (impetigo) - A purulent skin infection that is localized and commonly involves the face and the upper and lower extremities.
• Erysipelas ( st. anthony's fire ) - Follows a respiratory tract or skin infection caused by s. pyogenes
• Cellulitis - Involves the skin and subcutaneous tissue.
• Nectrotizing Fasciitis - Involves the deep subcutaneous tissue and is also known a "flesh-eating" or streptococcal gangrene.