Tag: skin lesions

  • Toxic Epidermal Necrolysis

    Toxic Epidermal Necrolysis: Definition and Description of Toxic Epidermal Necrolysis: Toxic Epidermal Necrolysis (TEN) is a severe skin condition characterized by the widespread detachment of the epidermis, the outer layer of the skin. This rare disorder is often a reaction to medications, and it is marked by flu-like symptoms followed by painful skin lesions that…

  • Transient Acantholytic Dermatosis

    Transient Acantholytic Dermatosis: Definition and Description of Transient Acantholytic Dermatosis: Transient Acantholytic Dermatosis (TAD) is a benign dermatological condition characterized by the presence of acantholysis, which is the loss of connections between keratinocytes in the epidermis. This disorder typically appears as erythematous lesions with vesicular or bullous formations, commonly observed in the trunk, axillae, and…

  • Sweet Syndrome

    Sweet Syndrome: Definition and Description of Sweet Syndrome: Sweet Syndrome, also known as acute febrile neutrophilic dermatosis, is a rare inflammatory skin condition characterized by the sudden appearance of painful skin lesions, fever, and elevated white blood cell counts. Initially described by Dr. Robert Sweet in 1964, this syndrome typically manifests as tender, red or…

  • Ringed Eruption (Granuloma Annulare)

    Ringed Eruption (Granuloma Annulare): Definition and Description of Ringed Eruption (Granuloma Annulare): Ringed eruption, more formally known as granuloma annulare, is a benign inflammatory skin condition characterized by ring-shaped lesions on the skin. These lesions often appear as raised, reddish bumps surrounded by clear skin that can vary in size and number. Granuloma annulare typically…

  • Primary Cutaneous Amyloidosis

    Primary Cutaneous Amyloidosis: Definition and Description of Primary Cutaneous Amyloidosis: Primary Cutaneous Amyloidosis is a rare skin disorder characterized by the deposition of amyloid proteins in the skin. Amyloidosis refers to a group of diseases in which abnormal proteins called amyloid build up in organs and tissues. In primary cutaneous amyloidosis, this accumulation is localized…

  • Pure Cutaneous Histiocytosis

    Pure Cutaneous Histiocytosis: Definition and Description of Pure Cutaneous Histiocytosis: Pure Cutaneous Histiocytosis is a benign skin condition characterized by an abnormal proliferation of histiocyte cells, which are a type of immune cell. This condition often presents as cutaneous lesions and can vary in appearance, typically manifesting as papules, plaques, or nodules. Unlike systemic histiocytosis,…

  • Molluscum Contagiosum

    Molluscum Contagiosum: Definition and Description of Molluscum Contagiosum: Molluscum Contagiosum is a viral infection of the skin caused by the molluscum contagiosum virus (MCV), a member of the poxvirus family. It is characterized by small, raised, firm, and painless bumps that appear on the skin, typically ranging from 2 to 5 millimeters in size. These…

  • Lichen Annularis

    Lichen Annularis Definition and Description of Lichen Annularis Lichen Annularis, also known as prurigo nodularis, is a chronic skin condition characterized by the development of round, raised bumps on the skin that can be itchy and uncomfortable. Medically, it is recognized as a type of dermatitis, which is inflammation of the skin. Lichen Annularis typically…

  • Lichen Ruber Planus

    Lichen Ruber Planus Definition and Description of Lichen Ruber Planus Lichen Ruber Planus is a common inflammatory condition that primarily affects the skin and mucous membranes. It is characterized by shiny, flat-topped, purple lesions that may appear on various parts of the body, including the wrists, ankles, and lower back. Medically, Lichen Ruber Planus is…

  • Lichen Urticatus

    Lichen Urticatus Definition and Description of Lichen Urticatus Lichen Urticatus, also known as Urticaria pigmentosa, is a skin condition categorized under mastocytosis, characterized by the presence of mast cells in the skin. This condition manifests as small, reddish-brown spots or lesions that can resemble hives. These lesions may become itchy, particularly when triggered by heat,…