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Sinus histiocytosis, a common feature in lymph node biopsies, is characterized by dilated sinuses containing variable numbers of histiocytes. [ 4 ] Histiocytosis is a rare disease, thus its diagnosis may be challenging.
Langerhans cell histiocytosis (LCH) is an abnormal clonal proliferation of Langerhans cells, abnormal cells deriving from bone marrow and capable of migrating from skin to lymph nodes. Symptoms range from isolated bone lesions to multisystem disease . [ 1 ]
Non-Langerhans cell histiocytosis, also known as rare histiocytoses, comprise all histiocyte, macrophage, and dendritic cell proliferative disorders that are not categorized as hemophagocytic lymphohistiocytosis (HLH) or Langerhans cell histiocytosis (LCH). [1] The spectrum of non-langerhans cell histiocytoses include: Benign cephalic histiocytosis
Multicentric reticulohistiocytosis is a multisystem disease beginning usually around the age of 50 years, and is twice as common in women. [ 1 ] : 718 [ 2 ] See also
Hereditary progressive mucinous histiocytosis is a very rare, benign, non-Langerhans' cell histiocytosis. An autosomal dominant or X-linked hereditary disease described on the skin, it has been found almost exclusively in women. [1] [2] One case of the disease in a male patient has been reported. [3]
Rosai–Dorfman disease, also known as sinus histiocytosis with massive lymphadenopathy or sometimes as Destombes–Rosai–Dorfman disease, [1] [2] [3] is a rare disorder of unknown cause that is characterized by abundant histiocytes in lymph nodes or other locations including the skin, sinuses, brain and heart. Individuals with the disorder ...
In one study on 515 women ages 29 to 97 who had heart attacks, shortness of breath occurred in more than 40%. There is never any harm in seeing a doctor for your peace of mind. 5.
Before the Histiocyte Society classified histiocytoses in the 1980s, the condition was also known as "Histiocytosis X", where "X" denoted the then unknown cause. [9] [10] [11] It is now known as chronic multifocal Langerhans cell histiocytosis, a subtype of LCH. [3] The disease is rare. [12] Most present between the ages of two and six. [2]