Skin & Subcutaneous Tissue

Normal Processes

Abnormal Processes

Infectious, immunologic, and inflammatory disorders

Infectious disorders and infestations


impetigopilonidal cyst, scarlet fever (group A streptococcus)


molluscum contagiosumherpes zoster, chickenpox, erythema infectiosum (fifth disease)rubella, measles

Fungal (deep and superficial)
Infestations, nonvenomous bites, stings


Immunologic and inflammatory disorders

Papulosquamous and eczematous dermatoses

Psoriasis, lichen planuscontact dermatitis 

Vesiculobullous disorders

pemphigus vulgarisbullous pemphigoid,

Urticaria, erythema, exanthema, and purpura

Atopic dermatitisStevens-Johnson syndrome,


Benign neoplasms, cysts and other skin lesions

Malignant neoplasms

Basal cell carcinomamelanoma, Kaposi sarcoma

Adnexal disorders (hair and hair follicles, nails, sweat glands, sebaceous glands, oral mucous membranes)

Disorders of the hair and hair follicles

seborrheic dermatitistinea capitis

Disorders of the sweat and sebaceous glands

acne vulgaris, rosacea