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.
Dr. Chadha begins by reviewing your personal and family history, prior H. pylori infections, immune disorders, medication use and symptoms such as stomach pain, nausea or weight loss. A focused abdominal exam checks for tenderness or masses.
Routine labs include a complete blood count (CBC) to look for anemia, lactate dehydrogenase (LDH) levels and specific markers tied to lymphoma (ICD-10 C83.1). These help assess overall health and rule out other causes.
An endoscope is used to visualize the stomach lining. Suspicious areas are biopsied and sent to pathology to confirm lymphoma cells, determine subtype and guide treatment.
Based on initial findings, Dr. Chadha may order a bone marrow biopsy or endoscopic ultrasound to determine the extent of disease and finalize a personalized treatment plan.
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.
Long-term H. pylori infection, immune disorders (e.g., celiac disease), immunosuppressive medications, family history of lymphoma, and age over 60 can all increase risk.
Gastric lymphoma begins in the lymphoid (immune) tissue of the stomach, whereas adenocarcinoma arises from the glandular cells lining the stomach.
If detected early, the 5-year survival rate for gastric lymphoma can be around 60-80% or higher, depending on stage and treatment response.
The primary code for gastric lymphoma is C83.1, which specifies extranodal (stomach) lymphoma.
Yes. Eradicating H. pylori with antibiotics may lead to regression of early, localized gastric lymphoma in some cases.
Diagnosis typically requires an upper endoscopy with biopsy, supported by blood tests and imaging studies (CT or PET scans) to stage the disease.
No. Many patients achieve remission with chemotherapy, immunotherapy, or targeted therapy. Surgery is reserved for select early tumors or complications.
Recovery time varies by treatment modality and individual factors. Many patients start feeling better within a few weeks, though full treatment courses may last months.
Yes. At GastroDoxs we provide dietary counseling, nutritional planning, psychosocial support, and access to local support groups.
Please bring any prior test results, a list of current medications, and your complete medical history to help Dr. Chadha tailor your evaluation.
