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Surgery · 外科
General Surgery普通外科 · Cirugía General
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Choose your specialist
This specialty has several focused companions, each anchored on its own world-leading clinicians and 2021–2026 evidence. Not sure which one? Start with the generalist and it will point you to the right specialist.
GeneralAbdominal-wall / inguinal herniaAcute appendicitisBowel obstruction / acute abdomenCholelithiasis / acute cholecystitisColorectal cancer (surgical)Gastric / esophageal cancer (surgical)
Not sure? Start hereDavid C. ChenUCLA Lichtenstein Amid Hernia InstituteDirector of the Lichtenstein Amid Hernia Institute at UCLA; named contributor to the 2023 HerniaSurge international inguinal hernia guidelines (PMID 37862616); authority on the Lichtenstein tension-free mesh repair
Fausto CatenaBufalini Hospital, Cesena / World Society of Emergency Surgery (WSES)Director of Emergency and Trauma Surgery at Bufalini Hospital, Cesena; Editor-in-Chief of the World Journal of Emergency Surgery; Secretary General of the World Society of Emergency Surgery (WSES); driving force behind the modern WSES emergency-surgery guideline family
Tadahiro TakadaTeikyo University, TokyoEmeritus professor at Teikyo University, Tokyo; principal architect of the Tokyo Guidelines (TG07/TG13/TG18) that define the global severity grading and management of acute cholangitis and acute cholecystitis (TG18, PMID 29334699)
Acute appendicitisAcute appendicitisUncomplicated vs complicated appendicitisAntibiotics vs appendectomy
Paulina SalminenUniversity of Turku, FinlandProfessor of Surgery at the University of Turku; principal investigator of the landmark APPAC trial (JAMA 2015, PMID 26080338) that tested antibiotic-first therapy against appendectomy for uncomplicated acute appendicitis
Bowel obstructionBowel obstructionPerforation / acute abdomenPeritonitis
Fausto CatenaBufalini Hospital, Cesena / World Society of Emergency Surgery (WSES)Director of Emergency and Trauma Surgery at Bufalini Hospital, Cesena; Editor-in-Chief of the World Journal of Emergency Surgery; Secretary General of the World Society of Emergency Surgery (WSES); driving force behind the modern WSES emergency-surgery guideline family
Cholelithiasis (gallstones)Cholelithiasis (gallstones)Acute cholecystitisAcute cholangitis
Tadahiro TakadaTeikyo University, TokyoEmeritus professor at Teikyo University, Tokyo; principal architect of the Tokyo Guidelines (TG07/TG13/TG18) that define the global severity grading and management of acute cholangitis and acute cholecystitis (TG18, PMID 29334699)
Rectal cancer (surgical / TME)Rectal cancer (surgical / TME)Colon cancer (surgical resection)Organ preservation / watch-and-wait
Richard J. "Bill" HealdChampalimaud Foundation, LisbonSurgeon at the Champalimaud Foundation, Lisbon; originator of total mesorectal excision (TME), the technique that transformed rectal-cancer surgery and dramatically cut local recurrence; honored at the Champalimaud '50 Years of TME' event in May 2026
Gastric cancer (surgical / D2)Gastric cancer (surgical / D2)Esophageal cancer (surgical)Extent of lymph-node dissection
Mitsuru SasakoYodogawa Christian Hospital, Osaka / Hyogo College of Medicine (Emeritus)Emeritus professor at Hyogo College of Medicine and surgeon at Yodogawa Christian Hospital, Osaka; first author of JCOG9501 (NEJM 2008, PMID 18669424), a defining trial on the extent of lymph-node dissection (D2) in gastric-cancer surgery
Inguinal herniaInguinal herniaVentral / incisional herniaAbdominal-wall reconstruction
David C. ChenUCLA Lichtenstein Amid Hernia InstituteDirector of the Lichtenstein Amid Hernia Institute at UCLA; named contributor to the 2023 HerniaSurge international inguinal hernia guidelines (PMID 37862616); authority on the Lichtenstein tension-free mesh repair
This agent is trained only on publicly available medical literature and educational materials. It does not provide individualized medical advice, diagnosis, or prescription. Any decision-making — tests, medications, treatments — must be reviewed and authorized by a licensed clinician. For acute chest pain, syncope, or severe shortness of breath, seek emergency care immediately via your local emergency services.