Colorectal Cancer

Overview

• Colorectal cancer is the cancer of large bowel (colon) and rectum.
• Most colorectal cancers develop with growths called polyps.
• These polyps are noncancerous growths and usually harmless, however they can become cancerous if left undetected.
• Colorectal cancer is the 3rd most common cancer in men and 2nd most common cancer in women worldwide. It is also the 10th most common cancer in India.

What are the signs and symptoms?

Many cases are detected by screening. Abnormal vaginal bleeding is the most common symptom of cervical cancer. Other common symptoms of established cervical cancer are:

• Vaginal discharge:this varies greatly in amount and can be intermittent or continuous.
• Bleeding: this can be spontaneous but may occur after sex, micturition or defecation, in the early stages. Occasionally, severe vaginal bleeding may necessitate emergency hospital admission.
• Heavy bleeding during menstrual periods
• Pain during / after sexual intercourse
• Vaginal discomfort/urinary symptoms.

Late symptoms

• Painless haematuria.
• Chronic urinary frequency.
• Painless fresh rectal bleeding.
• Altered bowel habit.

Screening

Cervical cancer screening recommended for all sexually active women Screening is done by a Pap smear as an outpatient procedure.

Treatment options

• Very early tumours are cured by local excision procedures like conization or trachelectomy or a fertility preserving hysterectomy
• Early stage tumours are treated with concurrent chemoradiation or with surgery (hysterectomy) with excellent prognosis
• A few patients in early stage with high risk factors may need a radical hysterectomy surgery and followed by adjuvant therapy with chemotherapy or radiation as necessary
• Patients with advanced disease may need radical hysterectomy or even pelvic exenteration(anterior/posterior/ total) and pelvic lymphadenectomy followed by adjuvant chemotherapy/ radiotherapy and also targeted therapy if necessary