A small tumor is excised from a patient's body.The pathologist wants to examine the number,size,and arrangement of cells within the tumor.The best technique to use would be:
A)DIC microscopy.
B)phase contrast microscopy.
C)bright-field microscopy after fixation,sectioning,and staining.
D)fluorescence microscopy.

Question

Quizplus · Accepted Answer

Bright-field microscopy after fixation, sectioning, and staining is the best technique for examining the number, size, and arrangement of cells within a tumor. Fixation preserves the cellular structures, sectioning allows for a thin slice to be placed on a slide, and staining enables visualization of the cells under the microscope. DIC microscopy and phase contrast microscopy are useful for examining live cells but may not provide the level of detail needed for tumor analysis. Fluorescence microscopy is useful for examining specific molecules or structures within cells but may not be necessary for a general examination of tumor cells.

A Small Tumor Is Excised from a Patient's Body