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cell in Medical Definition

Anterior mediastinal mass

... common masses found here include thymomas, germ cell tumors, lymphomas, thyroid tissue, and ... classified as lymphocytic, epithelial, or spindle cell histologies, but this is not very significant ... all age groups. Can also be primary mediastinal B cell lymphoma with poor prognosis (8,9). Common ...

Central tolerance

... of receptor specificities that occurs during T cell and B cell differentiation, whereby a proportion of the ... from peripheral sites. In the case of T cell central tolerance, additional sources of antigen ...

Hematopathology

... syndromes , leukemias , lymphomas , plasma cell neoplasms , and histiocytic and mast cell neoplasms. Hematopathologists from all over the ... that has become malignant . Thus there are B cell lymphomas , ...

Pathology

... A renal cell carcinoma (chromophobe type) viewed on a ... 2.1 Adaptation to injury 2.2 cell death 2.3 Inflammation 2.4 Tissue ... processes, such as cellular adaptation to injury, cell death, inflammation, tissue repair, and ...

Thymocyte

... for more information. Thymocytes are T cell precursors which develop in the thymus . The ... maturational stages based on the expression of cell surface markers. The earliest thymocyte stage is ... medulla Negative selection, regulatory T cell conversion Events during maturation ...

Depolarization-induced suppression of inhibition

... action potential . Accordingly, any ionic current that hyperpolarizes a cell is called an inhibitory current. In their experiments with projection ... These observations suggested that no changes occurred in the post-synaptic cell to change its responsiveness to GABA during DSI. Somehow, DSI appeared to ...

Clean margin

... due to aesthetic concerns (ie. melanoma of the face or squamous cell carcinoma of the penis . [1] See Also Cancer Bowen's Disease Melanoma Squamous cell carcinoma Surgical Oncology Pathology References ...

Medical procedure

... therapy Hormone replacement therapy Opiate replacement therapy cell therapy Stem cell treatments Proton therapy Intubation Nebulization ...

Atransferrinemia

... pneumonia . Genetics This condition is inherited in an autosomal recessive pattern, meaning two copies of the gene in each cell are altered. A case study was done in 1961 on a 7-year-old girl who passed away from heart failure with atransferrinemia. The half-normal ...

Biomedicine

... is more or less in common to the fields of medicine , veterinary medicine , odontology and fundamental biosciences such as biochemistry , cell biology , genetics , zoology , botanics and microbiology . Biomedicine is usually not concerned with the practice of medicine as much as it is ...

Cryostasis (clathrate hydrates)

... inside the cells reaches the eutectic and freezes. The final state of frozen tissues is pure ice in the former extracellular spaces, and inside the cell membranes a mixture of concentrated cellular components in ice and bound water. In general, this process is not reversible to the point of restoring ...

Heterophile

... by external antigens (Heterophile Antigens) that nevertheless cross-react with self-antigens. For example antibodies against Group A Streptococcus cell walls can also react with human heart tissues. These are considered heterophile antibodies. ...

Muscle atrophy

... and a decrease in sensitivity to or the availability of critical secreted growth factors which are necessary to maintain muscle mass and satellite cell survival. In addition to the simple loss of muscle mass ( atrophy ), or the age-related decrease in muscle function ( sarcopenia ), there are other ...

Nuclear medicine

... micro-encapsulation . Some specialist studies require the labeling of a patient's own cells with a radionuclide ( leukocyte scintigraphy and red cell scintigraphy). Most diagnostic radionuclides emit gamma rays , while the cell-damaging properties of beta particles are used in therapeutic ...

Ocular oncology

... can be benign like dermoid cysts , or malignant like rhabdomyosarcoma and retinoblastoma . The most common eyelid tumor is called basal cell carcinoma . This tumor can grow around the eye but rarely spreads to other parts of the body. Other types of common eyelid cancers include squamous ...

Polysomnographic technician

... is a cessation of either one or both respiratory effort and airflow for 10 seconds or longer. An obstructive apnea is usually caused by excess cell tissue lining the upper airway, abnormal airway anatomy, oropharyngeal crowding, or sometimes even enlarged tonsils. The technologist will observe ...

Proteopathy

... Med 344 : 1516-1526. PMID 11357156 . ^ Zou WQ, Gambetti P (2005). "From microbes to prions: the final proof of the prion hypothesis". cell 121 : 155-157. PMID 15851020 . ^ Walker LC, LeVine H, Mattson MP, Jucker M (2006). "Inducible proteopathies". TINS 29 : 438-443. ...
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