Pregnancy-associated breast cancer (PABC) accounts for about 0.2%-3.8% of all breast cancer cases. PABC and non-PABC have the same biological characteristics; however, due to the physiological changes associated with pregnancy and lactation and the possible influence on the fetus, PABC has unique characteristics in clinical diagnosis, treatment, and prognosis. In order to standardize and improve the diagnosis and treatment of PABC, the Breast Surgery Group of Surgery Branch of Chinese Medical Association made an in-depth discussion on PABC on the basis of a review of the literature, full consideration of the clinical characteristics of PABC patients, and feasibility in China, and put forward some consensus opinions on the diagnosis and treatment of PABC, with an aim to provide reference for the clinical work of breast surgeons in China.

Colorectal cancer is one of the most common malignant tumors in China， ranking second in morbidity and fourth in mortality. Metastasis and recurrence are the leading causes of patient death， and the peritoneum is a frequent site of metastasis in colorectal cancer， second only to liver and lung metastases. However， the prognosis of peritoneal metastasis is much worse than hepatic and pulmonary metastasis. Colorectal cancer peritoneal metastasis is characterized by difficult early diagnosis， severe symptoms and poor prognosis. Its standardized diagnosis and treatment are crucial for improving the prognosis of patients and enhancing their quality of life. The Colorectal Cancer Professional Committee of the Chinese Medical Doctor Association organized authoritative experts in the field of colorectal cancer in China to compile the “Chinese Expert Consensus on the Diagnosis and Treatment of Colorectal Cancer Peritoneal Metastasis （2017 Edition）” as early as 2017， and revised it in 2022. In view of the research progress of colorectal cancer peritoneal metastasis， the Colorectal Cancer Professional Committee of the Chinese Medical Doctor Association organized domestic multidisciplinary experts to revise and update the “Chinese Expert Consensus on the Diagnosis and Treatment of Colorectal Cancer Peritoneal Metastasis （2017 Edition）” and the 2022 revision based on the latest research results and evidence-based medical evidence after repeated discussions. The “Expert Consensus on the Diagnosis and Treatment of Peritoneal Metastasis of Colorectal Cancer （2025 Edition）” was compiled， reaching a preliminary consensus on the definition， diagnosis，treatment and prevention of colorectal cancer peritoneal metastasis， with the aim of guiding and standardizing the diagnosis and treatment of colorectal cancer peritoneal metastasis， developing reasonable and effective comprehensive treatment plans， prolonging survival time and improving quality of life for colorectal cancer peritoneal metastasis patients， thereby raising the overall level of diagnosis and treatment for colorectal cancer in China.

Robotic Natural Orifice Specimen Extraction Surgery （NOSES） is a vital component in the surgical management of colorectal tumors. By combining the strengths of the robotic platform and colorectal tumor NOSES， this technique has become a surgical approach that is attracting widespread attention among colorectal surgeons. In 2022， The Group of NOSES， Colorectal Cancer Professional Committee of the Chinese Medical Doctor Association， The Group of Robotic Surgery， Colorectal Cancer Professional Committee of the Chinese Medical Doctor Association developed the first “Expert Consensus on Robotic Natural Orifice Specimen Extraction Surgery for Colorectal neoplasm”， which has played a positive role in promoting standardized robotic colorectal tumor NOSES procedures. After three years of practice and summarization， a large number of colorectal surgeons have revised the consensus based on new developments and clinical evidence. The main revisions include: adjusted surgical positioning for R-CRC-NOSES Ⅵ/Ⅶ；new methodologies （B/C） for R-CRC-NOSES Ⅷ； optimized digestive tract reconstruction in R-CRC-NOSESⅨ/Ⅹ； and the addition of “poor blood supply to the colorectal stump” as a defined complication. This update aims to enhance scientific rigor and standardization in robotic NOSES， fostering its sustainable development in China's surgical landscape.

The incidence of low rectal cancer continues to rise annually， the research on low rectal cancer and the innovation of technology are constantly advancing and deepening. The new neoadjuvant treatment strategies and anus-preserving surgical plans formulated based on the multidisciplinary team （MDT）scheme closely affect the perioperative management， functional preservation effect， and long-term quality of life of patients. This consensus document establishes standardized multidisciplinary integrated care pathways for preoperative management， aiming to systematize clinical decision-making processes and promote standardized implementation across clinical practice.

In order to standardize the perioperative nursing for endovascular treatment of splenic artery aneurysms， improve nursing quality， and promote the rapid recovery of patients， this consensus is specifically developed.Based on existing domestic and international clinical practice and literature research，and through expert demonstration， this consensus comprehensively elaborates on the classification of splenic artery aneurysms， endovascular treatment methods， indications， preoperative nursing and postoperative nursing.This consensus is highly practical and provides guidance for clinical practice.

Perihilar cholangiocarcinoma is the common type of malignant tumor in the biliary tract.The diagnosis and treatment of perihilar cholangiocarcinoma involve multiple aspects such as epidemiology，clinical diagnosis， imaging examination， clinical classification and staging， pathology， resectability evaluation，perioperative management， surgical planning， systematic treatment， and follow-up monitoring， which make it as one of the difficult and technically demanding fields in hepatobiliary surgery. In order to guide the more standardized， safe， and effective treatment of hilar cholangiocarcinoma in China， the Society for Hepatopancreato-biliary Surgery of Chinese Research Hospital Association and Editorial Board of Chinese Journal of Digestive Surgery have organized experts in the field of hilar cholangiocarcinoma nationwide to develop the Guideline for diagnosis and treatment of perihilar cholangiocarcinoma （2025 edition）. The aim is to provide standardized diagnosis and treatment plans for perihilar cholangiocarcinoma based on the latest clinical practice and evidence-based medicine principles， to improve diagnosis and treatment levels and patient prognosis， and to provide scientific guidance and reference for surgeons in China.