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A lipoma is a benign tumor made of fat tissue. [1] They are generally soft to the touch, movable, and painless. [1] They usually occur just under the skin, but occasionally may be deeper. [1] Most are less than 5 cm (2.0 in) in size. [2] Common locations include upper back, shoulders, and abdomen. [4]
Erythema nodosum is characterised by 1–2-inch (25–51 mm) nodules (rounded lumps) below the skin surface, usually on the shins. These subcutaneous nodules can appear anywhere on the body, but the most common sites are the shins, arms, thighs, and torso. Each nodule typically disappears after around two weeks, though new ones may continue to ...
Keratosis pilaris ( KP; also follicular keratosis, lichen pilaris, or colloquially chicken skin [1]) is a common, autosomal - dominant, genetic condition of the skin's hair follicles characterized by the appearance of possibly itchy, small, gooseflesh -like bumps, with varying degrees of reddening or inflammation. [2]
Specialty. Oncology. A dermatofibroma, or benign fibrous histiocytomas, is a benign nodule in the skin, typically on the legs, elbows or chest of an adult. [3] It is usually painless. [3] It usually ranges from 0.2cm to 2cm in size but larger examples have been reported. [3] It typically results from mild trauma such as an insect bite. [3]
Characteristics. Nodules are small firm lumps usually greater than 1 cm in diameter, found in skin and other organs. [1] [2] If filled with fluid they are usually softer and referred to as cysts. [2] Smaller (less than 0.5 cm) raised soft tissue bumps may be termed papules. [3]
Common characteristics of heat rashes include: A group of small bumps that can look like pimples or blisters and are fluid-filled and may break open. Deeper bumps in the skin that itch or prickle ...
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
Granuloma annulare (GA) is a rare, [ 1] sometimes chronic skin condition which presents as reddish bumps on the skin arranged in a circle or ring. [ 2] It can initially occur at any age, though two-thirds of patients are under 30 years old, and it is seen most often in children and young adults. Females are two times as likely to have it as males.