Endocrine, Metabolic and Nutritional Diseases Skin Diseases in Pregnancy Normal skin changes associated with pregnancy are darkening of linea alba (linea nigra), melasma (see Section 13), and striae distensae (Fig….
Disorders of the Nail Apparatus Normal Nail Apparatus The nail apparatus is made up of: Nail plate, the horny “dead” product. Four specialized epithelia: proximal nail fold, nail matrix, nail…
Disorders of the Genitalia, Perineum, and Anus Anogenital skin and mucosa are subject to unique disorders because of their special anatomy. Dermatologic and systemic disorders occur in the anogenital region….
Disorders of the Mouth Oral mucosa covers and protects tissues beneath it and conveys sensory information from the surface. Normal function is required for mastication, deglutition, chemosensory function, and phonation….
Photosensitivity, Photo-Induced Disorders, and Disorders by Ionizing Radiation Skin Reactions to Sunlight ICD-9: 692.70 ICD-10: L56.8 The term photosensitivity describes an abnormal response to sunlight. Cutaneous photosensitivity reactions require absorption…
Fungal Infections of the Skin, Hair, and Nails Introduction Superficial Fungal Infections. Caused by fungi that are capable of colonizing (cutaneous microbiome) and superficially invading skin and mucosal sites: Candida…
Adverse Cutaneous Drug Reactions1 Adverse Cutaneous Drug ReactionsICD-9: 995.2 ICD:10: T88.7 Adverse cutaneous drug reactions (ACDRs) are common in hospitalized (2–3%) as well as in ambulatory patients (>1%). Most reactions…
Precancerous Lesions and Cutaneous Carcinomas Epidermal Precancers and Cancers Cutaneous epithelial cancers [nonmelanoma skin cancer (NMSC)] originate most commonly in the epidermal germinative keratinocytes or adnexal structures. The two principal…
Melanoma Precursors and Primary Cutaneous Melanoma Precursors of Cutaneous Melanoma Precursors of melanoma are lesions that are benign per se but have the potential of turning malignant and thus giving…
Skin Signs of Systemic Cancers Mucocutaneous Signs of Systemic CancersICD-9: 199.0 ICD-10: M8000/6 Mucocutaneous findings may suggest systemic cancers in several ways: Associations of heritable mucocutaneous disorders with systemic cancers….
