Cancers and Conditions Treated with Advanced Surgical Oncology and Robotic Techniques
Comprehensive Hepatopancreatobiliary (HPB) and Complex Gastrointestinal Cancer Care
Expert, Personalized Surgical Care for Complex Cancer Conditions
As a fellowship-trained robotic surgical oncologist and hepatopancreatobiliary (HPB) surgeon serving the San Francisco Bay Area, I provide multidisciplinary, evidence-based surgical treatment for pancreatic, liver, bile duct, gastric, esophageal, colorectal, and retroperitoneal malignancies.
My practice is anchored in advanced pancreatic surgery and complex HPB oncology — among the most technically demanding areas in abdominal surgical oncology. When appropriate, robotic and minimally invasive techniques are incorporated to enhance visualization, refine vascular and biliary dissection, and support recovery while maintaining uncompromising oncologic standards.
Each treatment plan is individualized and developed in coordination with medical oncology, gastroenterology, radiology, pathology, and radiation oncology specialists to ensure thoughtful sequencing of systemic therapy and surgery.
Explore the organ systems below for detailed information regarding diagnostic evaluation, surgical strategy, and multidisciplinary treatment planning.
Hepatopancreatobiliary (HPB) Oncology
Hepatopancreatobiliary oncology encompasses pancreatic, hepatic, biliary, and neuroendocrine diseases that often require highly specialized surgical expertise and coordinated multidisciplinary care. Management of these conditions demands careful integration of tumor biology, high-resolution imaging, systemic therapy strategy, and complex operative planning.
These diseases are treated within a focused hepatopancreatobiliary (HPB) surgical oncology practice dedicated to complex pancreatic, liver, and biliary conditions, including pancreatic cancer, pancreatic cystic neoplasms, neuroendocrine tumors, chronic pancreatitis, hepatocellular carcinoma, intrahepatic cholangiocarcinoma, colorectal liver metastases, perihilar cholangiocarcinoma, distal cholangiocarcinoma, gallbladder cancer, and selected benign liver tumors.
Surgical treatment frequently involves meticulous dissection along major vascular structures including the superior mesenteric vessels, portal vein, hepatic veins, and biliary confluence. Biliary tract cancers may also require complex bile duct resection and reconstruction, best executed within structured multidisciplinary sequencing. When appropriate, advanced minimally invasive and robotic techniques may enhance three-dimensional visualization in confined retroperitoneal and hepatic planes while preserving strict oncologic principles such as negative margin resection, appropriate lymph node assessment, and preservation of functional liver or pancreatic tissue.
Many of these diseases require careful sequencing of systemic therapy and surgery — decisions best made within experienced multidisciplinary hepatopancreatobiliary programs accustomed to managing complex pancreatic, liver, and biliary malignancies.
Pancreas
Pancreatic surgery represents the cornerstone of complex HPB care and includes some of the most technically demanding procedures in abdominal oncology.
Management may involve robotic pancreaticoduodenectomy (Whipple procedure), distal pancreatectomy with or without splenectomy, vascular resection and reconstruction, or parenchyma-preserving pancreatic surgery depending on tumor location, vascular involvement, and treatment sequencing. Surgical decision-making is guided by careful imaging review and multidisciplinary consensus.
Liver
Liver tumors require careful assessment of tumor burden, vascular anatomy, and underlying liver function to ensure safe resection while preserving adequate hepatic reserve.
Surgical management may include robotic or minimally invasive liver resection, formal hepatectomy, staged liver-directed strategies, or integration with systemic therapy for metastatic disease. The objective remains complete tumor clearance while maintaining functional liver volume.
Bile Duct & Gallbladder
Biliary tract cancers arise from the bile ducts or gallbladder and often require complex hepatobiliary surgery combined with coordinated systemic therapy and multidisciplinary treatment sequencing.
Operations may involve bile duct resection, partial hepatectomy, pancreaticoduodenectomy, and regional lymphadenectomy. Careful preoperative staging and multidisciplinary evaluation are essential to achieve safe, margin-negative resection while preserving hepatic and gastrointestinal function. Biliary tract cancers often require complex reconstruction and coordinated oncologic sequencing, particularly when tumors involve the hepatic hilum, portal structures, or distal bile duct.
Why Experience Matters in Pancreatic, Liver, and Biliary Surgery
Surgery involving the pancreas, liver, and bile ducts is among the most technically complex areas of abdominal oncology. These operations frequently require careful dissection around major vascular structures, precise preservation of hepatic inflow and outflow, and thoughtful coordination with systemic cancer therapy.
Biliary tract cancers can add an additional layer of complexity, including bile duct resection, lymphadenectomy, and complex biliary reconstruction to restore drainage — often in close proximity to the portal vein and hepatic artery at the biliary confluence.
Numerous studies have demonstrated that outcomes in hepatopancreatobiliary (HPB) surgery are closely associated with surgeon experience, multidisciplinary coordination, and careful patient selection. Complex procedures such as pancreatic resection, major liver surgery, and bile duct resection with reconstruction benefit from care delivered within experienced multidisciplinary programs that routinely manage these conditions.
Equally important is the ability to determine when surgery is appropriate and when it is not. Modern management of HPB disease often requires integration of tumor biology, high-resolution imaging, systemic therapy sequencing, and advanced surgical planning to achieve safe and durable outcomes.
Upper Gastrointestinal & Small Intestinal Cancers
Cancers of the esophagus, gastroesophageal junction, stomach, and small intestine require coordinated multimodality therapy integrating systemic treatment, radiation therapy in selected cases, and technically sophisticated surgical management.
These diseases are treated within a structured upper gastrointestinal oncology program emphasizing precise staging, multidisciplinary treatment sequencing, and careful physiologic optimization prior to surgery.
Modern treatment strategies for upper GI malignancies increasingly incorporate advances in systemic therapy and immuno-oncology. For example, management of esophageal and gastroesophageal junction cancers has evolved from trimodality strategies defined by the CROSS trial toward more individualized approaches incorporating perioperative chemotherapy, immunotherapy, and biomarker-driven treatment selection informed by studies such as FLOT, CheckMate, and MATTERHORN.
Surgical management frequently requires meticulous dissection within the mediastinum and upper abdomen, precise lymph node assessment, and careful reconstruction of the gastrointestinal tract. When appropriate, robotic and minimally invasive techniques may enhance visualization and dexterity within these anatomically confined regions while maintaining strict oncologic principles.
Colorectal & Peritoneal Malignancies
Colorectal and peritoneal surface malignancies require precise staging, integration of tumor biology, and coordinated multimodality treatment sequencing. Management frequently combines systemic therapy, advanced pelvic surgery, and specialized peritoneal surface oncology techniques within a multidisciplinary framework.
Surgical planning is individualized according to tumor stage, molecular profile, pelvic anatomy, and overall treatment strategy. Operative approaches may include robotic colectomy, nerve-preserving total mesorectal excision (TME), cytoreductive surgery for peritoneal disease, and integrated hepatopancreatobiliary strategies when liver metastases are present.
Minimally invasive and robotic techniques may be incorporated selectively when oncologically appropriate, enhancing visualization in confined pelvic and abdominal planes while preserving strict oncologic principles including negative margin resection and appropriate lymph node assessment.
Retroperitoneal & Adrenal Tumors
Tumors arising within the retroperitoneum and adrenal glands are uncommon and often biologically complex. These tumors frequently develop deep within the abdomen adjacent to critical structures including the aorta, inferior vena cava, kidneys, pancreas, and major neural and vascular networks, requiring highly specialized surgical expertise and meticulous anatomic planning.
Management of retroperitoneal tumors demands careful integration of high-resolution imaging, specialized sarcoma and endocrine pathology, molecular and genomic characterization, and multidisciplinary treatment planning. Many retroperitoneal sarcomas are defined by distinct molecular drivers — including MDM2 amplification in liposarcoma, NAB2–STAT6 fusion in solitary fibrous tumor, and other subtype-specific alterations — which influence prognosis and long-term surveillance strategy.
Adrenal tumors present a distinct set of clinical considerations, often involving endocrine physiology and hormone excess syndromes such as pheochromocytoma, primary hyperaldosteronism, or cortisol-producing tumors. Rare malignancies such as adrenal cortical carcinoma (ACC) require precise staging, careful preservation of tumor capsule integrity during resection, and coordinated multidisciplinary management.
Surgical treatment in this region frequently requires advanced retroperitoneal exposure, vascular control, and en bloc resection of involved structures when necessary to achieve oncologic completeness. While minimally invasive and robotic approaches may be appropriate for selected adrenal and smaller retroperitoneal tumors, operative strategy is always guided by tumor biology, anatomic complexity, and the ability to achieve safe margin-negative resection.
Care for retroperitoneal and adrenal tumors is delivered within a multidisciplinary framework integrating surgical oncology, endocrinology, sarcoma-focused pathology, medical oncology, radiation oncology, and specialized radiology expertise, ensuring individualized treatment strategies for these rare and complex diseases.
Many patients and referring physicians seek consultation for complex cancer cases requiring coordinated surgical expertise, multidisciplinary evaluation, and thoughtful integration of systemic therapy with advanced operative strategy.
Consultation and Referral
For Patients:
Individuals seeking evaluation for cancer care, complex gastrointestinal conditions, or a second opinion regarding surgical treatment may Request a Consultation to discuss individualized treatment strategy within a coordinated multidisciplinary framework.
For Referring Physicians:
Physicians wishing to refer a patient or discuss complex surgical oncology cases may visit For Physicians for direct referral pathways and coordinated case review.