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Frequency. Common [4] Fibrous papule of the nose is a harmless small bump on or near the nose. It is typically dome-shaped, skin-colored, white or reddish, smooth and firm. [1][2] Less frequently it can occur elsewhere on the face. [3] Sometimes there are a few. [1] It may be shiny and remains unchanged for life. There may be a central hair.
Melanocytic nevus. A melanocytic nevus (also known as nevocytic nevus, nevus-cell nevus, and commonly as a mole) [1][2] is usually a noncancerous condition of pigment-producing skin cells. It is a type of melanocytic tumor that contains nevus cells. [2] A mole can be either subdermal (under the skin) or a pigmented growth on the skin, formed ...
The fibromas are most often caused by host-specific papillomaviruses.They may also be due to host-specific poxviruses. [1] [4]The transmission of cutaneous fibromas in the white-tailed deer is caused by a virus that is thought to be transmitted through a variety of insect bites or by a deer coming in contact with any contaminated object that scratches or penetrates the skin of the deer or ...
Actinic keratosis. Actinic keratosis (AK), sometimes called solar keratosis or senile keratosis, [1][2] is a pre-cancerous [3] area of thick, scaly, or crusty skin. [4][5] Actinic keratosis is a disorder (-osis) of epidermal keratinocytes that is induced by ultraviolet (UV) light exposure (actin-). [6]
Hyperkeratosis is thickening of the stratum corneum (the outermost layer of the epidermis, or skin), often associated with the presence of an abnormal quantity of keratin, [1] and is usually accompanied by an increase in the granular layer. As the corneum layer normally varies greatly in thickness in different sites, some experience is needed ...
Staphylococcus epidermidis is a very hardy microorganism, consisting of nonmotile, Gram-positive cocci, arranged in grape-like clusters. It forms white, raised, cohesive colonies about 1–2 mm in diameter after overnight incubation, and is not hemolytic on blood agar. [5] It is a catalase -positive, [10] coagulase -negative, facultative ...
Basal-cell skin cancer (BCC) usually presents as a raised, smooth, pearly bump on the sun-exposed skin of the head, neck, torso or shoulders. Sometimes small blood vessels (called telangiectasia) can be seen within the tumor. Crusting and bleeding in the center of the tumor frequently develops. It is often mistaken for a sore that does not heal.
Rhinophyma is characterised by hypertrophy of nasal skin, with hyperplasia and fibrosis of the sebaceous glands and connective tissue. The nasal tip and alae are preferentially affected by the hypertrophy, and the lower portion of the nose is predominantly affected. The underlying bony structure is not affected. [ 2 ]