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Geriatric oncology is a branch of medicine that is concerned with the diagnosis and treatment of cancer in the elderly, usually defined as aged 65 and older. This fairly young but increasingly important subspecialty incorporates the special needs of the elderly into the treatment of cancer.
Micrograph showing contraction band necrosis, a histopathologic finding of myocardial infarction (heart attack).. Histopathology (compound of three Greek words: ἱστός histos 'tissue', πάθος pathos 'suffering', and -λογία-logia 'study of') is the microscopic examination of tissue in order to study the manifestations of disease.
A histopathologic diagnosis of prostate cancer is the discernment of whether there is a cancer in the prostate, as well as specifying any subdiagnosis of prostate cancer if possible. The histopathologic subdiagnosis of prostate cancer has implications for the possibility and methodology of any subsequent Gleason scoring . [ 1 ]
Grading in cancer is distinguished from staging, which is a measure of the extent to which the cancer has spread. Pathology grading systems classify the microscopic cell appearance abnormality and deviations in their rate of growth with the goal of predicting developments at tissue level (see also the 4 major histological changes in dysplasia).
The histopathologic diagnosis of prostate cancer has implications for the possibility and methodology of Gleason scoring. [3] For example, it is not recommended in signet-ring adenocarcinoma or urothelial carcinoma of the prostate, and the scoring should discount the foamy cytoplasms seen in foamy gland carcinoma. [3]
The most aggressive stage of renal cancer is believed to be the one in which the tumour is mixed, containing both clear and granular cells. [63] The recommended histologic grading schema for RCC is the Fuhrman system (1982), which is an assessment based on the microscopic morphology of a neoplasm with haematoxylin and eosin (H&E staining). This ...
A biopsy is a medical test commonly performed by a surgeon, an interventional radiologist, or an interventional cardiologist.The process involves the extraction of sample cells or tissues for examination to determine the presence or extent of a disease.
Fine-needle aspiration (FNA) is a diagnostic procedure used to investigate lumps or masses.In this technique, a thin (23–25 gauge (0.52 to 0.64 mm outer diameter)), hollow needle is inserted into the mass for sampling of cells that, after being stained, are examined under a microscope ().