Erosions and Ulcers Libby Edwards Peter J. Lynch Many clinicians do not distinguish erosions from ulcerations, but to a dermatologist, these represent separate differential diagnostic categories. An erosion is a…

Blistering and Pustular Diseases Libby Edwards Blisters are skin lesions that are filled with fluid. Blisters larger than half a centimeter are called bullae, and those smaller are called vesicles….

Red Disorders: Patches and Plaques Peter J. Lynch Libby Edwards Many different “rashes” present with red patches and plaques. When these disorders occur on dry, keratinized skin, they usually exhibit…

Special Issues in Genital Dermatology Peter J. Lynch Libby Edwards Psychological Aspects Clinical discussions about genital disorders and their role in the patient’s psychological, social, and sexual function have historically…

White Disorders Libby Edwards White skin lesions can occur from a lack of pigment, from thick skin that is wet and hydrated, from fibrin debris at the base of an…

Skin-Colored Disorders Peter J. Lynch SECTION A: SKIN-COLORED PAPULES “Skin colored” refers to those disorders whose color is of the same hue as the patient’s surrounding normal tissue. Thus, in…

Red Disorders: Red Papules and Nodules Peter J. Lynch Anogenital disorders that present as red papules or nodules are most often either neoplasms or inflammatory lesions. Vascular neoplasms tend to…

Dark-Colored Lesions: Brown, Blue, Gray, or Black Disorders Peter J. Lynch Hyperpigmentation is commonly present on the skin of the genitalia. It may occur diffusely or as individual pigmented lesions….

Diagnostic and Therapeutic Procedures Libby Edwards Unlike many specialties, diagnostic and therapeutic procedures for outpatient anogenital diseases generally are limited. For skin disease, the area of abnormality is visible, so…

Vaginitis and Balanitis Libby Edwards The terms vaginitis and balanitis simply refer to inflammation of the vagina and the glans penis and are not specific diseases. Often noninflammatory conditions that…