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Chinese Journal of Digestion and Medical Imageology(Electronic Edition) ›› 2024, Vol. 14 ›› Issue (04): 378-381. doi: 10.3877/cma.j.issn.2095-2015.2024.04.018

• Review • Previous Articles    

Progress of imaging assessment of perineural invasion in rectal cancer

Rong He1, Yi Zhang2, Panpan Li3, Gesheng Song1, Aiyin Li1, Yi Wang1,()   

  1. 1. Department of Radiology, the First Affiliated Hospital of Shandong First Medical University (Shandong Provincial Qianfoshan Hospital), Jinan 250014, China
    2. CT Room, Zhangqiu District Second People's Hospital, Jinan 250200, China
    3. Medical Imaging Centre, the Central Hospital Affiliated to Shandong First Medical University, Jinan 250013, China
  • Received:2024-01-30 Online:2024-08-01 Published:2024-07-11
  • Contact: Yi Wang

Abstract:

Rectal cancer is one of the common gastrointestinal malignant tumors that seriously affects human survival and quality of life. Total mesorectal excision (TME) is the main method for the treatment of T1-2N0 rectal cancer, and neoadjuvant therapy is recommended for T3-4 or N+ patients. Perineural invasion (PNI) refers to the tumor approaching the nerve and wrapping at least 33% of the nerve circumference or the tumor cells penetrating any of the three layers of the nerve sheath. PNI is an important biological feature and prognostic factor of rectal cancer, and its diagnosis can only be confirmed by postoperative pathology. Before neoadjuvant therapy for advanced rectal cancer patients who cannot be operated, if the PNI status of rectal cancer can be obtained by noninvasive imaging means, it will further improve the personalized diagnosis and influence the prognosis of patients. This article reviews the research progress of imaging evaluation of PNI in rectal cancer.

Key words: Rectal cancer, Perineural invasion, Image assessment

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