What are the examination methods for small cell lung cancer

What are the examination methods for small cell lung cancer? There are some irresponsible and informal hospitals nowadays, and the diagnoses made are varied. Since some people don't understand small cell lung cancer, they don't know what tests are needed to confirm the diagnosis. So what are the examination methods for small cell lung cancer? Let's take a look.

The inspection method is as follows:

1. Tumor VIP receptor imaging

Vasoactive intestinal peptide (VIP) is a neurotransmitter composed of 28 amino acids with multiple functions. It can regulate the proliferation and differentiation of normal and tumor cells through its receptors. VPAC (VIP receptor) is widely present in various normal and tumor tissues, but its expression density in tumor tissue is much higher than that in normal tissue, which lays the foundation for radionuclide-labeled vasoactive intestinal peptide receptor imaging. This imaging has been applied to the diagnosis, staging, treatment selection and prognosis evaluation of various tumors.

2. Chest X-ray

It is the simplest, easiest and cheapest inspection method.

3. Magnetic resonance imaging (MRI)

It is not as good as CT in detecting small lung lesions, but it can more clearly show the relationship between the tumor and large blood vessels. When determining whether there is intracranial metastasis, enhanced MRI is the first choice.

4. Positron emission tomography (PET)

Whole-body PET is significantly more accurate than CT and radionuclide bone scanning in identifying lung masses, lymph nodes, or distant metastases.

5. Sputum cytology

The positive rate is related to the location and size of the tumor, the quality of sputum, and whether there is concurrent infection. The detection rate of central lung cancer is higher, but it is difficult to determine the type, and it is currently not recommended.

6. Fiberoptic bronchoscope

The location, size and extent of bronchial infiltration of the tumor can be observed, and tissue can be obtained for pathological examination.

7. Percutaneous Lung Biopsy

The biopsy is done under CT guidance and has a positive rate of up to 90 percent, but is often falsely negative if the tumor contains a large area of ​​necrosis.