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Fine needle aspiration and cytology is a common first step. Cytopathology reveals clusters of cells with uniform round nuclei. These cells do not have many of the features usually associated with malignancy, such as a high nucleus to cytoplasm ratio or prominent nucleoli. [7] Ultrasonography and radiography are performed to look for metastasis.
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 ( biopsy ).
Typically, either cytologic or histopathologic analysis of the suspected mass is done prior to initiating treatment. The commonly used diagnostic procedures for skin tumors are fine-needle aspiration cytology and tissue biopsy. [2] Cytology is an important tool that can help the veterinarian distinguish a tumor from inflammatory lesions. The ...
Most frequently iris cysts are benign and need no treatment. Sometimes iris cysts are causing problems and need to be deflated. Iris cysts can be treated with trans corneal diode laser treatment, fine-needle aspiration or surgical excision. [1] For the treatment of iris cysts is a conservative approach favored. [2]
In general, a fine-needle aspiration can be done anywhere it is safe to put a needle, including liver, lung, kidney, and superficial masses. Proper cytopathology technique takes time to master. Cytotechnologists and cytopathologists can assist clinicians by assisting with sample collection.
A fine needle aspirate can be done with simply a small bore needle and a small syringe (1 cc) that can generate rapid changes in suction pressure. Fine needle aspirate can be used to distinguish a cystic lesion from a lipoma. Both the surgeon and the pathologist must be familiar with the method of procuring, fixing, and reading of the slide.
Fine-needle aspiration is essential in order to obtain a sample of the thyroid tissue to allow for microscopic examination. This allows an experienced pathologist to differentiate ATC from other diseases, such as other forms of thyroid cancer. [2]
Sperm granulomas are diagnosed using a microscope to examine tissues taken from the area, typically done with fine needle aspiration and occur within a few weeks of a vasectomy. [7] An example of a histology based diagnosis supporting sperm granuloma would be a sperm core surrounded by inflammatory cells, apoptotic cells , and fibrous tissue.