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Colon Tumor Doctor - Dr. Rishi Chadha

Find the best treatment of colon tumors by the expert Dr. Rishi Chadha at GastroDoxs in Houston. Since the early diagnoses of the cancer through colonoscopies and imaging, to the complex minimally invasive surgeries, individual treatment plans, and lifestyle changes guarantee the results. Relied on board-certified skills to offer compassionate care.

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Texas Medical Board
Harris County Medical Society
American College of Gastroenterology
American Society for Gastrointestinal Endoscopy
Memorial hermann
Houston Methodist leading Medicine
HCA Houston Healthcare
Rishi Chadha

About the Expert

Dr. Rishi Chadha, MD is a board‑certified gastroenterologist who specializes in preventive gastroenterology, colorectal cancer screening, and minimally invasive endoscopic procedures. He completed his fellowship at Sunrise Health GME in Las Vegas and previously trained in internal medicine at St. Vincent’s Medical Center in Connecticut.

What Is a Colon Tumor?

A colon tumor is a lump or growth that forms in the large intestine. It can be benign (non-cancerous) or malignant (cancerous).

The ICD-10 code C18 is used for colon cancer.

Early screening and detection of tumors may increase success and survival rates in treatment.

Common Causes and Risk Factors

  • Age over 50
  • Family history of colon cancer or polyps
  • Diet high in red or processed meats and low in fiber
  • Smoking
  • Regular alcohol consumption
  • Inflammatory bowel disease (Crohn's disease, ulcerative colitis)

Signs and Symptoms

  • Blood in the stool or rectal bleeding
  • Ongoing changes in bowel habits (diarrhea, constipation)
  • Unexplained weight loss
  • Abdominal cramps or pain
  • Feeling of incomplete bowel evacuation
  • Tiredness or general fatigue

How Dr. Rishi Diagnoses Colon Tumor?

Dr. Rishi Chadha uses a step-by-step approach:

1. Medical History and Exam

He examines your personal and familial history of polyps or colon cancer, lifestyle (diet, smoking, alcohol) and symptoms (bleeding, change in bowel habits, etc.).

2. Physical Exam and Lab Tests

Physical evaluation examines whether there is any abdominal tenderness or abdominal mass, whereas blood analysis (CBC test, liver functions, tumor markers) might indicate anemia or other alarming symptoms.

3. Colonoscopy and Biopsy

A flexible scope extracts the colon as a whole; any suspicious lesions are taken through a biopsy to the pathology who can establish whether the lesions are benign or malignant.

4. Imaging Studies

  • CT scan to assess tumor size, local spread, and lymph node involvement.
  • MRI for detailed soft-tissue evaluation, especially in rectal or pelvic tumors.
  • Endoscopic ultrasound in select cases to gauge depth of invasion.
Rishi Chadha
Treatment

Our Houston team offers a full range of care for colon tumors.

Lifestyle/ Dietary Interventions

  • Consume extra fiber from whole grains, vegetables, and fruits.
  • Engage in daily exercise of at least 30 minutes.
  • Reduce intake of red meat and processed foods.
  • Quit smoking and limit alcohol consumption.

Medications

  • Chemotherapy for later-stage tumors.
  • Targeted therapy based on tumor type.
  • Nursing care to manage and reduce side effects.

Minimally Invasive or Advanced Procedures

  • Laparoscopic colectomy: removal of a small tumor in the bowel using minimally invasive techniques.
  • Robotic-assisted surgery: provides precision and improved surgical outcomes.
  • Endoscopic mucosal resection: removes very early tumors without full surgery.
  • Ablation or stenting: alternative treatments to surgery for specific cases.
Rishi Chadha

About the Author

Dr. Rishi Chadha, MD is a board‑certified gastroenterologist who specializes in preventive gastroenterology, colorectal cancer screening, and minimally invasive endoscopic procedures. He completed his fellowship at Sunrise Health GME in Las Vegas and previously trained in internal medicine at St. Vincent’s Medical Center in Connecticut.

Frequently Asked Questions

What is a colon tumor?

It is an abnormal growth in the large intestine. Tumors can be benign (non-cancerous) or malignant (cancerous).

How common is colon cancer?

Colon cancer is the third most prevalent cancer in the United States.

What stage is a 7 cm colon tumor?

Staging is determined by how far the tumor has penetrated the bowel wall and whether it has spread to lymph nodes or other organs, not solely by its size.

What is involved in the surgery of a colon tumor?

Surgery typically involves removing the affected part of the colon and reconnecting the healthy sections. Most procedures are now done laparoscopically or with robotic assistance for smaller incisions.

What is the survival rate of a colon tumor?

Early-stage tumors have about a 90% five-year survival rate, while late-stage tumors have approximately a 14% five-year survival rate (American Cancer Society).

Can diet help lower my risk?

Yes. A diet low in red or processed meat and high in fiber-rich fruits, vegetables, and whole grains can help reduce the risk of developing colon tumors.

When should I undergo a colonoscopy?

Average-risk adults should start screening at age 45. Those with a family history or other risk factors may need earlier or more frequent exams as advised by their doctor.

Do alternatives to surgery exist?

Yes. Depending on the tumor stage and type, chemotherapy, targeted therapies, immunotherapy, radiation, and supportive care can be used to manage symptoms.

What are the most frequent side effects during treatment?

Patients may experience fatigue, nausea, bowel changes, or anemia. Your care team will provide medications and measures to manage these side effects.

When should I see a doctor?

Consult a doctor promptly if you experience recurrent rectal bleeding, blood in the stool, unexplained weight loss, or persistent changes in bowel habits.

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