Skip to content - Acral Keratoses
- Alopecia Hair Loss
- Annular Lesions
- Bleeding
- Bulla flictena A bulla is a large blister filled with clear fluid that is bigger than 1 centimeter (larger than a fingernail).
- Burrows
- Comedone
- Crust
- Cyst
- Depigmented Macules
- Dermographism
- Discharge
- Dyspigmentation
- Edema Swelling
- Erosion An erosion is a shallow, open area of skin where the outermost layer (epidermis) has been partially or completely lost, but the damage does NOT extend below the basement membrane (the boundary between the epidermis and the deeper dermis).
- Erythema Erythema is the medical term for redness of the skin caused by increased blood flow in the superficial blood vessels (capillaries) of the dermis.
- Erythroderma
- Fissure
- Flushing
- Follicular Hyperkeratosis
- Hyperpigmentation
- Hypopigmented Macules
- Koebner Phenomenon
- Leukonychia Leukonychia is the medical term for white discoloration of the nails.
- Leukotrichia
- Lymphadenopathy
- Maceration
- Macrocephaly
- Macule pata A macule is a flat spot on the skin that looks different in color from the surrounding skin but feels completely smooth when you touch it.
- Melanonychia Melanonychia (also called longitudinal melanonychia or melanonychia striata) is a brown to black pigmented streak that runs lengthwise along the nail, from the base to the free edge.
- Nail Changes
- Nail Discoloration
- Nail Thickening
- Nodule A nodule is a solid lump in or under the skin that is larger than 1 centimeter (about the size of a marble or larger).
- Onycholysis Onycholysis is the painless separation of the nail plate from the underlying nail bed.
- Oral Lesions
- Papule A papule is a small, solid bump on the skin that you can both see and feel.
- Patch A patch is essentially a large macule - a flat area of skin that has a different color than the surrounding skin but feels smooth when touched.
- Photosensitivity
- Plaque A plaque is a raised, flat-topped area of skin that is larger than your fingernail (greater than 1 centimeter).
- Purpura Purpura refers to red, purple, or brown discolorations of the skin caused by bleeding from small blood vessels (capillaries) into the skin or mucous membranes.
- Pustule A pustule is a small bump on the skin filled with pus - a thick, white or yellow fluid made up of dead white blood cells, bacteria, and tissue debris.
- Scale descuamarea A scale is a visible accumulation of dead skin cells (keratinocytes) from the outermost layer of the skin (stratum corneum) that have failed to shed normally.
- Scar
- Scarring Alopecia
- Seborrhea Oily Skin
- Skin Atrophy
- Skin Thickening
- Telangiectasia
- Tumor In dermatology, a 'tumor' simply means a large solid mass in the skin that is bigger than 2 centimeters (about the size of a walnut or larger).
- Ulcer An ulcer is a deep, open wound in the skin where both the outer layer (epidermis) and the deeper layer (dermis) have been lost, creating a crater-like defect.
- Vesicle A vesicle is a small blister filled with clear fluid that is less than 1 centimeter in size (smaller than a pencil eraser).
- Warmth
- Wheal A wheal (also called a hive or welt) is a raised, swollen area of skin that appears suddenly and usually disappears within 24 hours.
