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Gross examination of a kidney (right of image) with a renal oncocytoma (left of image).. Gross processing, "grossing" or "gross pathology" is the process by which pathology specimens undergo examination with the bare eye to obtain diagnostic information, as well as cutting and tissue sampling in order to prepare material for subsequent microscopic examination.
Gross pathology of miliary tuberculosis.. Gross pathology refers to macroscopic manifestations of disease in organs, tissues, and body cavities.The term is commonly used by anatomical pathologists to refer to diagnostically useful findings made during the gross examination portion of surgical specimen processing or an autopsy.
Disposable plastic molds or embedding molds (Leukart's L blocks) for tissue paraffin block making w.r.t. Histopathology: used to make blocks of tissue for cutting into thin slices for microscopy Block holders (in histopathology) used to hold the tissue blocks during cutting •Refrigerated microtome
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.
The frozen section procedure as practiced today in medical laboratories is based on the description by Dr Louis B. Wilson in 1905. Wilson developed the technique from earlier reports at the request of Dr William Mayo, surgeon and one of the founders of the Mayo Clinic [3] Earlier reports by Dr Thomas S. Cullen at Johns Hopkins Hospital in Baltimore also involved frozen section, but only after ...
The United States Food and Drug Administration classifies these systems as medical devices, under the general instrumentation category of automatic test equipment. [6]ATIS have seven basic processes (sample preparation, image acquisition, image analysis, results reporting, data storage, network communication, and self-system diagnostics) and realization of these functions highly accurate ...
Histology and non-forensic autopsy: 10 years [23] Forensic autopsy: Indefinitely [23] Cytology, fine needle aspiration: 10 years [24] Cytology, apart from fine needle aspiration: 5 years [23] Paraffin-embedded blocks Non-forensic: 2 [23] or 10 years [24] Forensic: Indefinitely [23] Requisition form and test report Pathology reports: 10 years ...
In the tissue microarray technique, a hollow needle is used to remove tissue cores as small as 0.6 mm in diameter from regions of interest in paraffin-embedded tissues such as clinical biopsies or tumor samples.