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Lymphomatoid granulomatosis (LYG or LG) is a very rare lymphoproliferative disorder first characterized in 1972. [1] Lymphomatoid means lymphoma -like and granulomatosis denotes the microscopic characteristic of the presence of granulomas with polymorphic lymphoid infiltrates and focal necrosis within it.
Granulomatous slack skin (GSS) is a rare cutaneous condition, a variant of lymphoma that typically presents in middle-aged adults. [1]: 735 It is a form of cutaneous T-cell lymphoma [2] and a variant of mycosis fungoides. [3]
LMG was thought to be a manifestation of three [1] or four [2] different diseases: the well-characterized disease of granulomatosis with polyangiitis, the ill-defined disorders of polymorphic reticulosis or mid-line malignant reticulosis, and an incompletely defined form of non-Hodgkin lymphoma.
Histopathology of diffuse large B-cell lymphoma occurring in the tonsil. H&E stain. 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.
The full clinical picture was first presented by Friedrich Wegener (1907–1990), a German pathologist, in two reports in 1936 and 1939, leading to the eponymous name Wegener's granulomatosis or Wegener granulomatosis (English: / ˈ v ɛ ɡ ə n ər /). [10]
The use of rituximab has been established for the treatment of B-cell–derived hematologic malignancies, including follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL). [ 7 ] In addition to cure-directed treatment, people can benefit from self-care to manage symptoms.
Mycosis fungoides, also known as Alibert-Bazin syndrome or granuloma fungoides, [1] is the most common form of cutaneous T-cell lymphoma.It generally affects the skin, but may progress internally over time.
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).