Colorectal cancer treatment in Turkey: Procedures, benefits and prices

What is colorectal cancer? Definition and risk factors

Colorectal cancer includes cancers of the colon and rectum. It most often results from the progressive transformation of a benign polyp into a malignant tumor on the inner wall of the intestine. The risk increases significantly after age 50. Several factors increase the likelihood:

• Age: the majority of cases are diagnosed after 50 years old.
• Family history: a close relative with colorectal cancer or adenomatous polyps increases the risk.
• Inflammatory bowel diseases (IBD): ulcerative colitis, Crohn's disease.
• Diet: low in fiber, high in saturated fats, red meat, and processed meats.
• Obesity and physical inactivity.
• Smoking and alcohol, when consumed excessively and over long periods.

Symptoms to watch for

Even if they can be subtle at first, here are the main symptoms of colorectal cancer to watch for.

Digestive signs

Digestive symptoms can be the first signs of a disorder of the colon or rectum:

• Persistent constipation, prolonged diarrhea, or alternating between the two.
• Abnormally thin stools or stools with a changed shape.
• Sensation of incomplete bowel emptying.
• Blood in the stool (bright red or dark) or visible rectal bleeding.

General signs

In addition to digestive problems, some general signs can also alert to the presence of colorectal cancer or another underlying condition:

• Persistent abdominal pain or cramps.
• Unexplained fatigue, involuntary weight loss.
• Anemia related to chronic digestive bleeding.

An often overlooked point: right-sided colon tumors are quieter and can progress for a long time without visible symptoms, unlike tumors of the left colon or rectum, which appear earlier through changes in bowel habits. This is another argument in favor of following the screening recommended in your country, even in the absence of symptoms.

Screening and diagnosis in Turkey: the examinations involved

The diagnosis is based on several complementary examinations, carried out at the partner clinics of Turquie Santé according to your file:

• Colonoscopy: the central screening exam. It allows direct visualization of the inside of the colon and rectum using a camera to detect suspicious polyps, remove them, and perform biopsies if needed.
• Biopsy: the tissue sampled during the colonoscopy is analyzed to confirm or rule out the lesion's cancerous nature.
• CT scan / MRI: assesses the local extension of the tumor into the intestinal wall and neighboring organs.
• PET scan: depending on the case, searches for possible distant metastases, notably in the liver or lungs.

This entire assessment allows for the establishment of the stage of the cancer. This step is essential before choosing the most appropriate treatment protocol.

Stages of colorectal cancer: what they mean for treatment

Staging follows the international TNM classification (Tumor, Nodes, Metastases). It directly determines the therapeutic strategy:

Survival varies greatly depending on the stage at diagnosis: in the United States, the 5-year relative survival is around 90% for localized colorectal cancer (SEER, American Cancer Society) and markedly lower for metastatic forms. These group statistics do not predict the course of an individual patient, and underline the importance of early screening.

Treatments offered in Turkey

The choice of treatment depends directly on the stage determined during the diagnostic workup but also on the exact location of the tumor and the patient's profile.

Colorectal surgery (Colectomy & Proctectomy): three possible approaches

Surgical resection remains the reference treatment, particularly for stages I to III. The choice of technique depends on the tumor's location, its stage, and the patient's overall condition.

Open surgery (laparotomy)

Reserved for large, complex tumors or in case of complications (obstruction, perforation). Large incision, longer recovery, but sometimes necessary for optimal surgical control.

Laparoscopy

Minimally invasive technique through small incisions and a camera. Advantages: reduced postoperative pain, minimal scarring, faster recovery of bowel function, and shorter hospitalization. It is now the reference for the majority of operable colon tumors.

Robotic surgery

The surgeon pilots miniaturized instruments via a console with magnified 3D vision. This technique, often referred to as robotic proctectomy for rectal tumors, is particularly suited to cases where precision in a narrow anatomical space (the pelvis) is crucial to preserve sphincter function and avoid a permanent colostomy. Recovery is generally faster than with open surgery.

In all three cases, the operation is often accompanied by sampling and analysis of nearby lymph nodes, essential to confirm the true stage of the disease. Depending on the location and extent of the resection, a temporary colostomy (while the intestine heals) or, more rarely, a permanent one may be necessary.

Chemotherapy, radiotherapy, and innovative treatments

Beyond surgery, several treatments can be used alone or in addition, depending on the stage of the disease and its exact location:

• Chemotherapy: administered before surgery (neoadjuvant, to reduce the tumor) or after (adjuvant, to limit the risk of recurrence).
• Radiotherapy: mainly indicated for rectal cancers or advanced stages, often combined with chemotherapy.
• Targeted therapies and immunotherapy: reserved for certain molecular profiles of the tumor (RAS/BRAF status, microsatellite instability); they allow a more precise action on cancer cells while preserving healthy tissue.

After treatment: follow-up, side effects and support

The end of active treatment does not mark the end of the journey. Three aspects are essential to anticipate:

Follow-up and risk of recurrence

A surveillance protocol (blood tests, follow-up colonoscopies, imaging) is put in place for several years, with the risk of recurrence being higher in advanced stages.

Managing side effects

Depending on the treatment received, patients may face prolonged fatigue, digestive troubles, neuropathy related to certain chemotherapies, or necessary adaptation in case of a stoma. Dietary support and regular medical follow-up help to mitigate these effects.

Psychological support

The diagnosis and treatment of cancer have a significant emotional impact on the patient as well as on their loved ones. Psychological support, offered alongside medical follow-up, is an integral part of comprehensive care, not a mere optional extra.

Teleconsultations and remote follow-up, provided by Turquie Santé and its partners, make it possible to stay in contact with the Turkish medical team once you have returned home.