what is primary skin lesions?
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Primary skin lesions are present at the onset of a disease. In contrast, secondary skin lesions result from changes over time caused by disease progression, manipulation (scratching, picking, rubbing), or treatment.
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When white spots are caused by entrapped keratin, it's called primary milia. However, these tiny white cysts can also form on skin as the result of a burn, sun damage, or poison ivy.
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Non-melanoma skin cancer refers to a group of cancers that slowly develop in the upper layers of the skin. The term non-melanoma distinguishes these more common types of skin cancer from the less common skin cancer known as melanoma, which can be more serious.
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Grade 2: partial thickness skin loss involving epidermis, dermis, or both. The ulcer is superficial and presents clinically as an abrasion or blister. Grade 3: full thickness skin loss involving damage to or necrosis of subcutaneous tissue that may extend down to, but not through underlying fascia.
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What Are Hot Spots? Also known as acute moist dermatitis, hot spots are localized areas of skin inflammation and bacterial infection. Often a hot spot will begin as a small red area that owners may mistake for an insect bite.
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Acute moist dermatitis, also referred to as hot spots or pyotraumatic dermatitis, is a skin condition characterized by localized, moist, erythematous areas. It is one of the most common presenting signs associated with canine skin disorders. Clinically the lesions appear to arise secondary to self-induced trauma.
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When should my dog have a skin biopsy? Any suspicious skin lesion or any area of poorly healing or abnormal skin should be biopsied. Veterinarians are particularly concerned about lumps or masses that appear suddenly or grow rapidly, as these are characteristics associated with malignant skin tumors.
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Actinic keratosis is a precancerous skin condition characterized by scaly, crusty spots on the hands, arms, or face. These spots are typically brown, gray, or pink. The affected area may itch or burn. Basal cell carcinoma is a form of cancer that affects the top layer of skin.
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Stage II. Partial thickness skin loss involving the epidermis and/or dermis. The ulcer is superficial and presents clinically as an abrasion, blister, or shallow crater. Partial thickness loss of dermis presenting as a shallow open ulcer with a red, pink wound bed without slough.
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Atypical intraepidermal melanocytic proliferations (AIMPs) are atypical melanocytic lesions that do not fully meet criteria for melanoma in situ. They represent a challenging diagnosis for dermatologists for several reasons.
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A basal cell carcinoma (BCC) is a type of skin cancer. There are two main types of skin cancer: melanoma and non-melanoma skin cancer. BCC is a non-melanoma skin cancer, and is the most common type (greater than 80%) of all skin cancer in the UK. BCCs are sometimes referred to as 'rodent ulcers'.
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Ephelides, commonly known as freckles, are one of the most frequently identified pigmented lesions seen on skin recognized by the general public.
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They are caused by ultraviolet (UV) damage to the skin. Some actinic keratoses can turn into squamous cell skin cancer. Because of this, the lesions are often called precancer. They are not life-threatening.
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Canine hot spots are red, inflamed skin lesions also known as pyotraumatic dermatitis or acute moist dermatitis. These names accurately describe the inflammatory skin lesions exacerbated by scratching that appear quickly, ooze, and may contain pus.
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In patients with CVI, these lesions are a pre-ulcer state as opposed to a scar from previously healed ulcerations. Scattered petechial flecks are often seen within the atrophy tissue and hemosiderin pigmentations in the periphery of the lesion.
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Hypomelanosis guttate lesions are particularly common in fair skin and have been connected to long-term sun exposure (a bit like sun freckles / age spots, but white instead of brown). They are seen as a normal part of the skin's ageing process (hence more common in individuals over 40 years of age).
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Malignant lesions of the skin are common. Patients who develop squamous cell carcinoma and malignant melanoma often have recognizable precursor conditions. A few skin lesions resemble malignancies. Lesions that are growing, spreading or pigmented, or those that occur on exposed areas of skin are of particular concern.