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Cutaneous lymphoid hyperplasia refers to a groups of benign cutaneous disorders characterized by collections of lymphocytes, macrophages, and dendritic cells in the skin. [ 2 ] : 725 Conditions included in this groups are: [ 2 ] : 725
Mild superficial perivascular infiltrate of lymphocytes, histiocytes and occasional neutrophils. There is some exocytosis of inflammatory cells but not as prominent as in nummular dermatitis; Typical findings: [5] Psoriasiform hyperplasia, initially slight, with mild spongiosis; Usually numerous yeast-like organisms in the surface keratin
Lymphoid hyperplasia is the rapid proliferation of normal lymphocytic cells that resemble lymph tissue which may occur with bacterial or viral infections. [1] The growth is termed hyperplasia which may result in enlargement of various tissue including an organ, or cause a cutaneous lesion .
Lymphoproliferative disorders (LPDs) refer to a specific class of diagnoses, comprising a group of several conditions, in which lymphocytes are produced in excessive quantities. These disorders primarily present in patients who have a compromised immune system .
Primary cutaneous gamma delta T-cell lymphoma Primary cutaneous CD8-positive aggressive epidermotropic cytotoxic T-cell lymphoma Primary cutaneous acral CD8-positive T-cell lymphoma Primary cutaneous CD4-positive small/medium T-cell lymphoproliferative disorder Peripheral T-cell lymphoma, NOS Angioimmunoblastic T-cell lymphoma
Epstein–Barr virus–associated lymphoproliferative diseases (also abbreviated EBV-associated lymphoproliferative diseases or EBV+ LPD) are a group of disorders in which one or more types of lymphoid cells (a type of white blood cell), i.e. B cells, T cells, NK cells, and histiocytic-dendritic cells, are infected with the Epstein–Barr virus (EBV).
At presentation, 31 patients with CD8+ TLPD were 29–89 years old (average 52.1 years); 23 were male, 8 were female; 26 had nodules, 5 had plaques; 28 had a single lesion, 2 had bilateral lesions, and 1 had multiple lesions; 18 had a single lesion on the ear, 3 had a single lesion on the nose, 1 had a single lesion on the leg, 4 had a single lesion on the foot, 2 had a single lesion on the ...
Also known as lipomelanotic reticulosis or Pautrier-Woringer disease, represents a rare form of benign lymphatic hyperplasia associated with most exfoliative or eczematoid inflammatory erythrodermas, including pemphigus, psoriasis, eczema, neurodermatitis, and atrophia senilis.