Cutaneous lymphoid hyperplasia (also known as "borrelial lymphocytoma," "Lymphadenosis benigna cutis," "Lymphocytoma cutis," "Pseudolymphoma," "Pseudolymphoma of Spiegler and Fendt," "Sarcoidosis of Spiegler and Fendt," "Spiegler–Fendt lymphoid hyperplasia," and "Spiegler–Fendt sarcoid") refers to a groups of benign cutaneous disorders characterized by collections of lymphocyte

Lymphocyte

A lymphocyte is a type of white blood cell in the vertebrate immune system.Under the microscope, lymphocytes can be divided into large lymphocytes and small lymphocytes. Large granular lymphocytes include natural killer cells...

s, macrophage

Macrophage

Macrophages are cells produced by the differentiation of monocytes in tissues. Human macrophages are about in diameter. Monocytes and macrophages are phagocytes. Macrophages function in both non-specific defense as well as help initiate specific defense mechanisms of vertebrate animals...

s, and dendritic cell

Dendritic cell

Dendritic cells are immune cells forming part of the mammalian immune system. Their main function is to process antigen material and present it on the surface to other cells of the immune system. That is, dendritic cells function as antigen-presenting cells...

s in the skin.

Conditions included in this groups are:

• Cutaneous lymphoid hyperplasia with nodular pattern
  Cutaneous lymphoid hyperplasia with nodular pattern
  Cutaneous lymphoid hyperplasia with nodular pattern is a condition of the skin characterized by a solitary or localized cluster of asymptomatic erythematous to violaceous papules or nodules....
  
  
• Cutaneous lymphoid hyperplasia with bandlike and perivascular patterns
  Cutaneous lymphoid hyperplasia with bandlike and perivascular patterns
  Cutaneous lymphoid hyperplasia with bandlike and perivascular patterns is a condition of the skin characterized by skin lesions that clinically resemble mycosis fungoides....
  
  
• Jessner lymphocytic infiltrate of the skin
  Jessner lymphocytic infiltrate of the skin
  Jessner lymphocytic infiltrate of the skin is a cutaneous condition characterized by a persistent papular and plaque-like skin eruption.Thought to occur on the neck, face and back and...