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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 Cutaneous lymphoid hyperplasia with nodular pattern, a condition of the skin characterized by a solitary or localized ...
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 .
The T cell variations are usually caused by the prolonged use of T cell suppressant drugs, such as sirolimus, tacrolimus, or ciclosporin. [2] The Epstein-Barr virus , which infects >90% of the world population, is also a common cause of these disorders, being responsible for a wide range of non-malignant, pre-malignant, and malignant Epstein ...
Castleman diseases; Other names: Giant lymph node hyperplasia, lymphoid hamartoma, angiofollicular lymph node hyperplasia: Micrograph of Castleman disease showing hyaline vascular features including atrophic germinal center, expanded mantle zone, and a radially penetrating sclerotic blood vessel ("lollipop" sign).
Epidermotropism (lymphocytes residing in the epidermis) [6] by neoplastic CD4+ lymphocytes with the formation of Pautrier's microabscesses is the hallmark sign of the disease. Although the condition can affect people of all ages, it is commonly diagnosed in adults over age 60. [7] [3] The dominant signs and symptoms of the disease are:
Idiopathic multicentric Castleman disease (iMCD) is a subtype of Castleman disease (also known as giant lymph node hyperplasia, lymphoid hamartoma, or angiofollicular lymph node hyperplasia), a group of lymphoproliferative disorders characterized by lymph node enlargement, characteristic features on microscopic analysis of enlarged lymph node tissue, and a range of symptoms and clinical findings.
One study found that men with moderate-to-high levels of exhaustion had a 2.7-fold increased risk of heart attack within five years and a 2.25 higher risk within ten years. The study also found a ...
Histological examination of the skin lesions reveals infiltrating lymphocytes most of which are T cells and a minority of which are NK- or B- cells. [25] In the skin lesions, EBV occurs primarily in the T cells [1] and to a lesser extent NK cells. [16] Marker studies indicate that the EBV in these cells is in latency phase II. [1]