Mid-term diagnosis method for rectal cancer

What are the mid-term diagnostic methods for rectal cancer? Rectal cancer is also a problem that many people are troubled by now. Rectal cancer is also a major threat to the health of many people now. The diagnostic methods of rectal cancer are also of concern. The following will introduce the mid-term diagnostic methods of rectal cancer.

Digital rectal examination

About 80% of rectal cancers can be palpated by digital examination. Generally, digital examination can reach 8 cm above the anus. Digital examination in a squatting position can reach higher lesions. The movements should be gentle during digital examination, and the entire circumference of the intestinal tract should be touched to understand the size, nature, mobility, infiltration range, etc. of the mass, and pay attention to whether there is pus and blood on the finger sleeve.

Proctoscopy

Experts at the Cancer Hospital said that they can further understand the appearance, characteristics, and pathological classification of the lesions under direct visualization, and can directly take suspicious tissues for histological examination to confirm the diagnosis.

Sigmoid microscopy

Applicable to lesions in the upper rectum that cannot be detected by colonoscopy.

Barium enema and double contrast radiography

It can help understand the extent of rectal cancer invasion, especially when the above-mentioned microscopic examination cannot penetrate the tumor or cannot understand the entire picture of the tumor, and can rule out multiple primary cancers in the colon. However, it should be used with caution when the intestinal cavity is narrow.

Other tests

When the posterior vaginal wall is suspected to be invaded, a gynecological bimanual examination can be performed. If necessary, a cystoscopy can be performed to determine whether there is urethral and bladder invasion. When the anal canal is invaded and the inguinal lymph nodes are enlarged, the lymph nodes can be removed for pathological examination.