Category Archives: Lesions

Diagnostic Hallmarks Distribution: random but some predilection for the back History of a preceding noninflammatory cyst or nodule Solid fragments of white keratin on incision and drainage Clinical Presentation Asymptomatic, skin-colored epidermoid cysts occasionally become red and tender. When this … Continue reading →

Diagnostic Hallmarks Distribution: axillae and groin Nonresponsiveness to antibiotic therapy Chronic course with recurrence in the same sites Clinical Presentation The individual lesions of hidradenitis suppurativa arise as firm, lender, dome-shaped papules and nodules 1 to 3 cm in size. … Continue reading →

Diagnostic Hallmarks Distribution: no characteristic pattern Sudden onset Pain and tenderness Response to therapy Clinical Presentation Furuncles are painful, dome-shaped or slope-shouldered, bright red nodules 1.5 to 3 cm in diameter. Usually, only a single furuncle is present; multiple lesions, … Continue reading →

Diagnostic Hallmarks Distribution- sun-exposed surfaces of the face, hands, and shoulders No seasonal venation in pigment density Size: 5 to 20 mm Occurrence in adults Clinical Presentation Lentigines (singular- lentigo) are brown macules 5 to 20 mm in diameter. The … Continue reading →

A lesion is a general term for a single, small area of skin disease. Lesions may be solitary or multiple. Terms used to describe these lesions include macules, patches, papules, plaques, nodules, vesicles, pustules, bullae, erosions, and ulcers. Some authorities … Continue reading →

Diagnostic Hallmarks Distribution: sun-exposed surfaces Fade in winter, darken in summer Size: smaller than 4 mm Occurrence primarily in children Clinical Presentation Freckles are light-brown macules 1 to 3 mm in diameter. They occur as closely set, but not confluent, … Continue reading →