It is checked with cancer of the esophagus _'s general knowledge that cytologic
Cytologic ABC that checks
Organism cells are various in style, its size, shape, function are different, but is formed by cytoplasm and part of nucleus two.
The cancer cell compares with normal cell, can appear at cell shape, cell border, cytoplasm, nuclear shape, nuclear position, the changes of nuclear structure, chromatin and kernel, and the permutation relation between malignant cells will present and change. Take these cancer cells out outside the body, apply to the glass slice, fix, dye, then watch under the microscope, contribute to confirming property and type of disease.
Generally divide slide cells into five grades. Grade: Normal cells; 2Grade: Slight hyperplasia, see the heterogeneous cells of slight core of small quantity; Grade: Severe hyperplasia, the heterogeneous cells of more severe cores, it is malignant to suspect, but is lack of evidence; Grade: Near cancer, the heterogeneous cells of a large number of severe cores, brief on malignant tumour (highly suspicious cancer cell) strongly ,But still lack the specific evidence; Grade: Cancer, it is obvious typical malignant tumour cells, and can give the classification tentatively.
Daily oesophagoscope or gastrocopy draw materials slide, draw in the net, gather cell slide a simple and convenient economic method at present, suitable for as crowd's general survey.
Draw in the net and gather the cytologic inspection: 65 centimetres long, diameter 0 one pair of trees rubber tube (adhere to the top and bring the net a gasbag) of 25 centimetres Send from the oral cavity into the stomach slowly, inflate 20- 30 ml (depend on patient's situation) ,Draw outwards slowly, regulate, fill tolerance at any time, network of making can the sufficient and oesophageal wall rub can pass as well as. If competent the intersection of X-ray and barium meal take a photograph of slice already in front of not drawing in the net, can repeat inflatable the intersection of Dora and several in the intersection of pathological change and, the possibility that in this way the network bag wipes malignant cells increases greatly, can improve the success rate of drawing in the net and checking. After network bag take out, network after the superficial to wipe and fetch thing slides, fixed, dye bag, can observe under the optical microscope.
Taboo disease including cirrhosis on it draw in the net, at bleeding digestive tract, in heart failure, myocardial infarction, upper airway infection, angina, pulmonary emphysema, traumatisms oesophageals acute,etc..
|
0 comments:
Post a Comment