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Surgical Oncology

Our surgical oncologists, along with medical oncologists, radiation oncologists, pathologists, radiologists, genetic counselors and oncology nurse navigators at Fort Sanders Regional and Thompson Cancer Survival Center work closely together to develop a personal treatment plan for each patient.

Surgical oncologists manage patient care from diagnosis to post-operative care in the following sites:

  • Gastrointestinal
  • Pancreas: Biliary and pancreatic cancers
  • Liver: Primary and metastatic liver cancers
  • Skin Cancer: Melanoma (advanced skin cancers), Sarcoma and soft tissue tumors, Basal cell carcinoma, Squamous cell carcinoma
  • Breast Cancer: Breast conservation, Skin-sparing techniques for breast reconstruction
  • Colon and rectal cancer: Evaluation and treatment of colon cancer
  • Sentinel lymph node mapping and biopsy
  • Lymph node dissections
  • Surgical treatment of recurrent and metastatic disease
  • Laparoscopic resection
  • Complex resections
  • Sphincter preservation techniques
  • Laparoscopic Radiofrequency Ablation (RFA)
  • Multidisciplinary management

Meet our Team

Sung G. Lee, M.D.

Board Certified: General Surgery
  • Colon and Rectal Cancer
  • Inflammatory Bowel Disease (Crohn’s and Ulcerative Colitis)
  • Minimally Invasive surgery utilizing Da Vinci Robotic Surgery and Laparoscopic Surgery
  • Anorectal Surgery
  • Complex Diverticular disease
  • Inherited syndromes of Colon and Rectalcancer
  • Anal Cancer
  • Anal Intraepithelial Neoplasia (AIN)Surveillance
  • Surgical treatment of Hemorrhoids
  • Complex Anorectal Fistula
  • Anal Fissure
  • Anorectal Abscess
  • Colonic Inertia
  • Fecal Incontinence treatment with Sacralnerve stimulator
  • Rectal Prolapse
  • Pilonidal Disease

Gregory P. Midis, M.D., FACS

Board Certified: General Surgery, Colon and Rectal Surgery
  • Colon and Rectal Cancer
  • Sphincter Preservation Techniques
  • Diverticulitis
  • Hepatobiliary Malignancies
  • Pancreatic Cancer
  • Treatment of Recurrent and Metastatic Cancer
  • Laparoscopic and Robotic Surgery
  • Complex Reoperative GI Surgery

David Roife, M.D.

Board Certified: General Surgery, Surgical Oncology

  • Gastrointestinal cancer
  • Gastroesophageal cancer
  • Liver cancer
  • Pancreas cancer
  • Small bowel and colorectal cancer
  • Adrenal cancer
  • Soft tissue sarcoma
  • Basal and squamous cell skin cancer
  • Melanoma skin cancer
  • Robotic, laparoscopic, and endoscopic surgery


Ana Wilson, D.O.

Board Certified: General Surgery, Surgical Oncology

  • Breast cancer
    • Sentinel lymph node mapping
    • Skin-sparing mastectomy
    • Oncoplastic breast conservation
    • Reverse lymphatic mapping
  • Melanoma, advanced skin cancers
    • Sentinel lymph node mapping and biopsy
    • Lymph node dissections
    • Surgical treatment of metastatic disease
    • Reconstruction with skin grafts and flaps
  • Sarcoma and soft tissue tumors
    • Multidisciplinary management
    • Limb preservation
  • Endocrine Disorders
    • Thyroidectomy
    • Minimally Invasive  Parathyroidectomy
    • Laparoscopic/Robotic Adrenalectomy