Munro's microabscess

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Munro's microabscess

Munro's microabscess (pronunciation: /ˈmʌnroʊz ˌmaɪkroʊˈæbsɛs/) is a medical term referring to a small collection of neutrophils, a type of white blood cell, that is often found in the stratum corneum of the skin. This phenomenon is typically associated with psoriasis, a chronic skin condition.

Etymology

The term is named after Sir Robert Munro, a British dermatologist who first described this condition in the late 19th century.

Description

Munro's microabscesses are small, pinpoint collections of neutrophils located in the stratum corneum, the outermost layer of the skin. They are a characteristic feature of psoriasis, particularly in the early stages of plaque formation. However, they can also be found in other skin conditions such as pustular psoriasis and impetigo.

The presence of Munro's microabscesses is one of the diagnostic criteria for psoriasis. They are typically identified through a skin biopsy and subsequent histological examination.

Related Terms

  • Neutrophils: A type of white blood cell that is often involved in inflammation and the body's first line of defense against bacterial infections.
  • Psoriasis: A chronic skin condition characterized by red, itchy, and scaly patches of skin.
  • Stratum corneum: The outermost layer of the skin, which provides a barrier against environmental damage and pathogens.
  • Pustular psoriasis: A rare form of psoriasis characterized by widespread pustules on the skin.
  • Impetigo: A highly contagious skin infection that causes sores and blisters.

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