Pleural Mesothelioma (Diagnosis)
The diagnosis of pleural mesothelioma involves a series of medical assessments and tests.
Imaging Studies:
X-rays: Chest X-rays may reveal abnormalities, such as pleural thickening or fluid accumulation.
CT Scan (Computed Tomography): More detailed than X-rays, CT scans can provide a clearer picture of the chest, helping identify abnormalities and tumors.
Biopsy:
A definitive diagnosis usually requires a biopsy, where a sample of tissue is taken for examination.
Biopsy methods may include:
Fine-Needle Aspiration (FNA): A thin needle is used to extract a small tissue sample.
Thoracoscopy: A thin tube with a camera (thoracoscope) is inserted through a small incision in the chest to visualize and obtain tissue samples.
Thoracotomy: In some cases, a larger surgical incision (thoracotomy) may be needed to collect tissue samples.
Pathological Examination:
The collected tissue samples are sent to a pathologist for examination under a microscope.
The pathologist looks for characteristic features of mesothelioma cells.
Staging:
Once diagnosed, the stage of the cancer is determined to assess the extent of its spread.
Staging may involve additional imaging studies, such as PET scans.
Blood Tests:
Certain blood markers, such as mesothelin or soluble mesothelin-related peptides (SMRP), may be elevated in pleural mesothelioma.