• Robotic Surgery.
    Robotic Surgery.
    Robotic Surgery
    We bring advanced minimally invasive techniques to the West Valley.
  • Colon Cancer.
    Colon Cancer.
    Colon Cancer.
    Just one test can save a life. Learn when to come in for a screening.
  • Hemorrhoids.
    Find the treatment you need, and the compassion you deserve.

Understanding Robotic Colon and Rectal Surgery

Robotic surgery is a minimally invasive procedure that mimics the surgeon’s hands to work in an incision. At West Valley Colon & Rectal Surgery Center, we use the da Vinci Xi System, which is guided by the surgeon. The system features 3D high-definition instruments that can bend in all directions. It’s similar to human hands, but it is more precise and can reach more areas with a smaller incision.

Dr. Najafian of West Valley Colon and Rectal Surgery Center

Dr. Najafian is a board certified colon and rectal surgeon and is a doctor of osteopathic medicine. He earned his degree from the Arizona College of Osteopathic Medicine in Glendale, Arizona. He went on to complete his residency at St. Luke’s Hospital/Temple University in Bethlehem, Philadelphia and his fellowship at Rhode Island Colorectal Clinic. Here, he was trained in many high-complexity colon and rectal surgeries that called for a number of different techniques. Dr.

Welcome To West Valley Colon & Rectal Surgery Center!

Welcome To West Valley Colon & Rectal Surgery Center!

Welcome and thank you for visiting the newly launched West Valley Colon & Rectal Surgery Center website! Our physicians are dedicated to giving you the best colon and rectal surgery experience complete with exceptional compassion at every visit. Our team are experts in the field and provide treatment for cancers, hemorrhoids, anal fissures, and more. Visit our treatments and conditions page to learn more about our services. 

Thrombotic Hemorrhoid Treatment

A thrombosed external hemorrhoid is a blood clot that develops in small veins within anal tissue. Mild or moderate cases of thrombotic hemorrhoids may heal through home remedies such as pain medication, warm baths, stool softeners, or topical ointments. 

For moderate to severe cases of thrombotic hemorrhoids, a small incision over the hemorrhoid may be made to evacuate the clot. Once the clot has been drained, the wound will be either be sutured to left alone to promote healing. 

Fissure Treatment

An anal fissure is a small tear or ulcer that develops in the mucosa (thin lining of tissue) of the anus. Tears that are severe or extend into the anal canal may require non-surgical and surgical treatment. 

Non-surgical treatment options generally include:


Roughly 50% of patients with an abscess form a fistula. A fistula is an infected tunnel between the anus or rectum and skin of the buttocks. Should a fistula develop or previous abscess drainage be unsuccessful, a fistulotomy will be performed to mitigate the disease.

Abscess Drainage

An abscess is a bacterial infection of mucus-secreting glands within the anus or rectum. These growths often resemble pus-filled pimples, but they should not be treated without the supervision of a trained medical professional. Outpatient therapy or abscess drainage is usually recommended to reduce pain and prevent further infection. 

Anorectal Surgery

Pain affecting the skin around the anus, also called perianal pain, and anal pain are common patient complaints. The anus and surrounding skin has many nerve endings, which can make pain feel severe. Fortunately, there is usually no cause for serious concern and most cases of perianal and anal pain can be treated with outpatient therapy or minimally invasive procedures.

The following may cause perianal or perirectal pain:

Transanal Endoscopic Microsurgery

Transanal endoscopic microsurgery is an advanced, minimally invasive surgical approach that allows a surgeon to remove tumors from the colon or rectum without an abdominal incision.

Traditional rectal tumor removal surgery involves an abdominal incision, but this minimally invasive approach enables the expert surgeons at West Valley Colon and Rectal Surgery Center to access issues in the mid to upper rectum without making that large incision through the use of specialized tools.