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.
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.
Finding tumors early through screening can improve treatment success and survival rates.
He reviews your personal and family history of polyps or colon cancer, lifestyle factors (diet, smoking, alcohol), and symptoms such as bleeding or bowel-habit changes.
A physical exam checks for abdominal tenderness or masses, while blood tests (CBC, liver function, tumor markers) can reveal anemia or other warning signs.
A flexible scope inspects the entire colon; any suspicious lesions are biopsied so pathology can determine if they're benign or malignant.
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.
It's a growth in the large intestine. Some tumors are benign (non-cancerous), while others are malignant (cancerous).
Colon cancer is the third most common cancer in the United States.
Staging depends on how deeply the tumor invades the bowel wall and whether it has spread to lymph nodes or other organs not just its size.
Surgery usually removes the affected segment of colon and reconnects the healthy ends. Many procedures are now done laparoscopically or with robotic-assistance for smaller incisions.
Five-year survival ranges from about 90% for early-stage tumors to around 14% for advanced, late-stage disease (American Cancer Society).
Yes. A diet high in fiber (fruits, vegetables, whole grains) and low in red or processed meats can reduce your risk of developing colon tumors.
Screening is recommended starting at age 45 for average-risk adults. If you have a family history or other risk factors, your doctor may advise earlier or more frequent exams.
Yes. Depending on the stage and tumor type, options include chemotherapy, targeted therapies, immunotherapy, radiation, and supportive care to manage symptoms.
Patients may experience fatigue, nausea, changes in bowel habits, or anemia. Your care team will provide medications and strategies to help manage these effects.
If you notice ongoing rectal bleeding, blood in your stool, unexplained weight loss, or persistent changes in bowel habits, schedule an evaluation promptly.
