Eccrine nevus

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Eccrine nevus
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An eccrine nevus is an extremely rare cutaneous condition that, histologically, is characterized by an increase in size or number of eccrine secretory coils. [1] :774

Histology study of the microscopic anatomy of cells and tissues of plants and animals

Histology, also microanatomy, is the branch of biology which studies the tissues of animals and plants using microscopy. It is commonly studied using a light microscope or electron microscope, the specimen having been sectioned, stained, and mounted on a microscope slide. Histological studies may be conducted using tissue culture, where live animal cells are isolated and maintained in an artificial environment for various research projects. The ability to visualize or differentially identify microscopic structures is frequently enhanced through the use of staining. Histology is one of the major preclinical subjects in medical school. Medical students are expected to be familiar with the morphological features and function of all cells and tissues of the human body from an early stage of their studies, so histology often stretches over several semesters.

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An Apocrine nevus is an extremely rare cutaneous condition that is composed of hyperplastic mature apocrine glands.

Nevus comedonicus is characterized by closely arranged, grouped, often linear, slightly elevated papules that have at their center keratinous plugs resembling comedones.

Related Research Articles

Blue nevus Human disease

Blue nevus is a type of melanocytic nevus. The blue colour is caused by the pigment being deeper in the skin than in ordinary nevi. In principle they are harmless but they can sometimes be mimicked by malignant lesions, i.e. some melanomas can look like a blue nevus.

Hidrocystoma Human disease

Hidrocystoma is an adenoma of the sweat glands.

Eccrine angiomatous hamartoma (EAH), first described by Lotzbeck in 1859, is a rare benign vascular hamartoma characterized histologically by a proliferation of eccrine and vascular components. EAH exists on a spectrum of cutaneous tumors that include eccrine nevus, mucinous eccrine nevus and EAH. Each diagnostic subtype is characterized by an increase in the number as well as size of mature eccrine glands or ducts, with EAH being distinguished by the added vascular component.

Nevus anemicus

Nevus anemicus is a congenital disorder characterized by macules of varying size and shape that are paler than the surrounding skin and cannot be made red by trauma, cold, or heat. The paler area is due to the blood vessels within the area which are more sensitive to the body’s normal vasoconstricting chemicals.

Nevus sebaceous

Nevus sebaceus or sebaceous nevus is a congenital, hairless plaque that typically occurs on the face or scalp. Such nevi are present at birth, or early childhood, affecting males and females of all races equally. The condition is named for an overgrowth of sebaceous glands in the area of the nevus.

Syringocystadenoma papilliferum Human disease

Syringocystadenoma papilliferum is a benign apocrine tumor.

Pigmented hairy epidermal nevus syndrome is a cutaneous condition characterized by a Becker nevus, ipsilateral hypoplasia of the breast, and skeletal defects such as scoliosis.

Nevus spilus Human disease

Nevus spilus is a skin lesion that presents as a light brown or tan macule, speckled with smaller, darker macules or papules.. Prevalance is around 2%, according to a limited study by Kopf et al

A benign melanocytic nevus is a cutaneous condition characterised by well-circumscribed, round or ovoid lesions, generally measuring from 2 to 6 mm in diameter.

Papillary eccrine adenoma is a cutaneous condition characterized by an uncommon benign sweat gland neoplasm that presents as a dermal nodule located primarily on the extremities of black patients.

Syringofibroadenoma

Syringofibroadenoma is a cutaneous condition characterized by a hyperkeratotic nodule or plaque involving the extremities.

Apocrine gland carcinoma

Apocrine gland carcinoma is a cutaneous condition characterized by skin lesions which form in the axilla or anogenital regions.

Woolly hair nevus is a congenital condition in which hair in a circumscribed area of the scalp is kinked or woolly.

Melanoma with features of a Spitz nevus

Melanoma with features of a Spitz nevus is a cutaneous condition characterized histologically with tissue similar to a spitz nevus and with overall symmetry and a dermal nodule of epithelioid melanocytes that do not mature with progressively deeper dermal extension.

Small-cell melanoma

Small-cell melanoma, also known as melanoma with small nevus-like cells, is a cutaneous condition, a tumor that contains variably-sized, large nests of small melanocytes with hyperchromatic nuclei and prominent nucleoli.

Porokeratotic eccrine ostial and dermal duct nevus is a skin lesion that resembles a comedonal nevus, but it occurs on the palms and soles where pilosebaceous follicles are normally absent. It is probably transmitted by paradominant transmission.

Nevoid melanoma

Nevoid melanoma is a cutaneous condition that may resemble a Spitz nevus or an acquired or congenital melanocytic nevus.

References

  1. Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN   0-07-138076-0.
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