Anal Neoplasia & Anal Cancer Treatment in Los Angeles

Early detection and expert treatment of anal dysplasia (AIN) and anal cancer — discreet, compassionate care from a board-certified colorectal surgeon.

Early Detection Saves Lives

Anal neoplasia refers to precancerous changes in the cells of the anal canal — also called anal intraepithelial neoplasia (AIN) or anal dysplasia. Most cases are linked to HPV infection, and when found early, they can be treated before they ever progress to anal cancer.

Dr. Moshe Barnajian provides confidential, judgment-free evaluation and treatment of anal dysplasia and early anal cancer at his Los Angeles colorectal surgery practice. From in-office screening to surgical excision and coordination with oncology specialists when needed, patients receive complete care in one place.

Signs You Should Be Evaluated

A new lump, growth, or persistent sore around the anus

Anal bleeding, discharge, itching, or pain that does not resolve

An abnormal anal Pap test or positive high-risk HPV result

A history of HPV, genital warts, or abnormal cervical Pap tests

Immunosuppression (including HIV or transplant medication)

Any anal mass — many are benign, but all deserve expert evaluation

Diagnosis & Treatment Options

Most patients with anal dysplasia never develop cancer when properly monitored and treated.

Expert Examination & Biopsy

Careful anoscopic evaluation of the anal canal with targeted biopsy of any suspicious area, performed comfortably and discreetly.

Treatment of Anal Dysplasia (AIN)

Precise ablation or excision of high-grade dysplasia to stop progression toward cancer, with sphincter function fully preserved.

Surgery for Early Anal Cancer

Local excision of selected small, early cancers — and seamless coordination with radiation and medical oncology for tumors that need combined therapy.

Surveillance & Prevention

A structured follow-up program with repeat examinations, plus HPV vaccination guidance for eligible patients.

Dr. Moshe Barnajian, colorectal surgeon Los Angeles

Why Choose Dr. Barnajian?

Board-certified colorectal surgeon (FASCRS), trained at Cedars-Sinai, specializing in minimally invasive and da Vinci® robotic surgery. Compassionate, thorough care with most PPO insurance accepted.

Call (424) 622-9028

Frequently Asked Questions

Is anal dysplasia the same as anal cancer?

No. Dysplasia (AIN) is a precancerous change. High-grade dysplasia can progress to cancer over time, which is exactly why early detection and treatment are so effective at preventing it.

Who is at higher risk for anal cancer?

Anyone with persistent high-risk HPV infection, a history of genital warts or abnormal Pap tests, a weakened immune system, or a prior HPV-related cancer. Screening is quick and can be lifesaving.

What does treatment involve?

Most dysplasia is treated with targeted ablation or minor excision — typically an outpatient procedure with minimal downtime. Early cancers may be removed surgically; more advanced tumors are usually treated with chemoradiation, coordinated by Dr. Barnajian with trusted LA oncologists.

Is the evaluation embarrassing?

Dr. Barnajian’s practice is built on discretion and respect. Evaluations are private, professional, and far more comfortable than most patients expect.