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Atypical chronic myeloid leukemia (aCML) [1] is a type of leukemia.It is a heterogeneous disorder belonging to the group of myelodysplastic/myeloproliferative (MDS ...
Reactive lymphocyte surrounded by red blood cells. In immunology, reactive lymphocytes, variant lymphocytes, atypical lymphocytes, Downey cells or Türk cells are cytotoxic (CD8 +) lymphocytes that become large as a result of antigen stimulation. Typically, they can be more than 30 μm in diameter with varying size and shape.
Marked atypia of type 2 pneumocytes is a characteristic finding in association with treatment with busulfan and other chemotherapeutic agents.. Atypia (from Greek, a + typos, without type; a condition of being irregular or nonstandard) [1] is a histopathologic term for a structural abnormality in a cell, i.e. it is used to describe atypical cells.
Hodgkin cell (atypical mononuclear RSC) is a variant of RS cell, which has the same characteristics but is mononucleated. [ 41 ] Lacunar RSC is large, with a single hyperlobulated nucleus, multiple, small nucleoli and eosinophilic cytoplasm which is retracted around the nucleus, creating an empty space ("lacunae").
CLL cells can express the typical B-cell markers such as CD19 and CD20, as well as abnormal surface markers such as CD5 and CD23. [ 32 ] On a peripheral blood smear, CLL cells resemble normal lymphocytes, although slightly smaller.
Virtual karyotyping does not require cell culture and has a dramatically higher resolution than conventional cytogenetics, but cannot detect balanced translocations. Flow cytometry is helpful to identify blasts, abnormal myeloid maturation, and establish the presence of any lymphoproliferative disorder in the marrow.
Atypical ductal hyperplasia (ADH) is the term used for a benign lesion of the breast that indicates an increased risk of breast cancer. [1]The name of the entity is descriptive of the lesion; ADH is characterized by cellular proliferation (hyperplasia) within one or two breast ducts and (histomorphologic) architectural abnormalities, i.e. the cells are arranged in an abnormal or atypical way ...
Atypical fibroxanthoma (AFX) of the skin is a low-grade malignancy related to malignant fibrous histiocytoma, which it resembles histologically. [ 2 ] : 613 Atypical fibroxanthoma manifests as a hard, pink or red papule or nodule that grows over the course of several months and may bleed or ulcerate .