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Follicular hyperplasia can be distinguished among other diseases by observing the density of a lymph follicle on low magnification. Lymph nodes with reactive follicles contain extensions outside its capsule, follicles present throughout the entire node, obvious centroblasts and the absence or diminishing mantle zones.
The periareolar glands of Montgomery in the breast are also called Montgomery tubercles or Morgagni tubercles. These periareolar glands are small, papular tissue projections at the edge of the areola (nipple).Obstruction of the Montgomery tubercles may result in an acute inflammation, a clear or light brownish fluid may drain out of the areola (nipple discharge), and an subareolar mass may ...
The follicles are cytologically polymorphous, are often polarized, and vary in size and shape. [3] Follicular hyperplasia must be distinguished from follicular lymphoma (bcl-2 protein is expressed in neoplastic follicles, but not reactive follicles).
They appear to be more obvious in people with oily skin types, with some rheumatic disorders, and in hereditary nonpolyposis colorectal cancer. [10] In the latter, the most common site for Fordyce spots is the lower gingiva (gums) and vestibular mucosa.
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]
In cases of perforating folliculitis, the affected hair follicle has a transepithelial channel and, frequently, a parakeratotic luminal plug as well as focal destruction of its lateral wall. In this transfollicular channel and in the follicular lumen, parakeratotic keratin is combined with connective-tissue components, such as collagen and ...
Follicular hyperkeratosis, also known as keratosis pilaris (KP), is a skin condition characterized by excessive development of keratin in hair follicles, resulting in rough, cone-shaped, elevated papules. The openings are often closed with a white plug of encrusted sebum.
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]