Colorectal Surgery

World renowned colon and rectal surgeons Dr. Sergio W. Larach and Dr. Sam Atallah work together to bring the very best in advanced colon and rectal surgery options to the Central Florida community.

We utilize a state of the art surgery facility in Central Florida called Endo-Surgical Center of Florida as well as local hospitals.

  • Professional Specialists
  • State-Of-The-Art OR
  • Personalized Services
  • Ambulatory Surgical Center

Abdominal Surgery

  • Surgical Treatment of Colon & Rectal Cancer (cancer surgery of the lower intestinal tract)
  • Laparoscopic and Robotic Surgery for the Colon and Rectum
  • Minimally Invasive Colon and Rectal Surgery including Single-Site Laparoscopy
  • TAMIS – Transanal Minimally Invasive Surgery for Removal of Cancerous and Precancerous  Tumors of the Rectum
  • taTME – Transanal Total Mesorectal Excision
  • Colostomy Reversal
  • Laparoscopic ileostomy and Colostomy
  • Incisionless Stoma Construction
  • Repair of Colon and Small Bowel Fistula
  • Repair of Colon – Bladder Fistula
  • Minimally Invasive Surgery for Benign Disease (Diverticulitis, Colitis)
  • Surgery for Ulcerative Colitis (UC) and Crohn’s Disease
  • Laparoscopic and Robotic J-Pouch Surgery
  • Surgical and Medical Management of Colonic Inertia and Constipation
  • Robotic Resection and Rectopexy for Rectal Prolapse
  • Excision of Presacral Tumors
  • Advanced Minimally Invasive Techniques including Stereotactic Navigation for Pelvic Surgery, and Intra-Operative Fluorescent Angiography
  • Surgical Treatment of Rare Tumors and Special Problems of the Intestine (Carcinoid, GIST, Appendiceal Cancer, Mucocele)
  • Surgical Treatment of Rectal and Sigmoid Endometriosis
  • Laparoscopic Total Procto-colectomy
  • Repair of Parastomal Hernias and Stomal Prolapse
  • Complex and Revisionary Surgery 

Ano-Rectal Surgery

  • Surgical Management of Anal Cancer
  • Hemorrhoidectomy
  • Surgical Treatment of Hemorrhoid Bleeding
  • Surgical Treatment of Hemorrhoid Prolapse
  • Surgical Treatment of Rectal Prolapse (Altemeier and Delorme)
  • Excision of Thrombosed Hemorrhoid
  • Removal of Anal and Genital Warts
  • Laser Treatment of Anal Lesions and HPV
  • High Resolution Anoscopy with Operating Microscope
  • Removal of Anal Skin Tags
  • Anal Fistula Treatment
  • Treatment of Anal STDs, and HIV Ulcers
  • Treatment of Anal Infections and Abscesses
  • Complex Anal Fistula Treatment, Seton Placement, biologic plug
  • Chemical Sphincterotomy (Botox)
  • Fissure Treatment  /  Fissurectomy
  • Sphincterotomy
  • Dilation of Strictures
  • Endoscopic Evaluation of Small Bowel Pouch
  • Formalin Treatment for Proctitis
  • LIFT Procedure for Complex Fistula
  • Treatment of Crohn’s Related Fistula
  • THD, Transanal Hemorrhoidal Dearteriolization
  • Endorectal Advancement Flaps
  • Anodermal Flap Construciton
  • Surgical Treatment and Excision of Pilonidal Disease
  • Bascom Procedure
  • V-Y Plasty
  • Overlapping Sphincteroplasty for Fecal Incontinence
  • Sacral Nerve Stimulator implantation for Fecal Incontinence
  • Field Blocks and Other Treatment for Chronic Anal Pain and Proctalgia Fugax 

Other Procedures

  • Central Vein Port Placement
  • Ventral Abdominal Hernia Repair
  • Abdominal Wall Reconstruction
  • Removal of Lipoma and Other Soft Tissue Tumors
  • Surgical Treatment of Bleeding Stoma and Verices

Our Location

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Hours of Operation

Our Regular Schedule


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm