Copyright@ Baoyong Zhou, Dewei Li | Biomed J Sci & Tech Res | BJSTR. MS.ID.006343. 31570 Case Report ISSN: 2574 -1241 Abdominal Wall Metastasis without Primary Lesion or Definitive Diagnosis until Repeat Histology of Specimens from Laparoscopic Cholecystectomy: A Case Report La Zhang 1 , Ning Jiang 2 , Rui Liao 1 , Baoyong Zhou 1 * and Dewei Li 3 * 1 Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China 2 Department of Pathology, Chongqing Medical University, Chongqing, China 3 Department of Hepatobiliary Surgery, Chongqing University Cancer Hospital, Chongqing, China *Corresponding author: Baoyong Zhou, Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China Dewei Li, Department of Hepatobiliary Surgery, Chongqing University Cancer Hospital, Chongqing, China DOI: 10.26717/BJSTR.2021.39.006343 ARTICLE INFO ABSTRACT Received: March 27, 2021 Published: October 29, 2021 Citation: La Zhang, Ning Jiang, Rui Liao1, Baoyong Zhou, Dewei Li. Abdominal Wall Metastasis without Primary Lesion or Definitive Diagnosis until Repeat His- tology of Specimens from Laparoscopic Cholecystectomy: A Case Report. Biomed J Sci & Tech Res 39(4)-2021. BJSTR. MS.ID.006343. Background: Primary tumors of the abdominal wall are rare and usually metastasize from previous surgical procedures. Port-site metastasis (PSM) is a complication of laparoscopic surgery in patients with malignancy. Case Presentation: We report a case of a female patient with PSM from gallbladder adenocarcinoma definitively diagnosed 5 years after laparoscopic cholecystectomy (LC). Two years after she first noticed a mass, fine-needle aspiration cytology of the mass yielded a definitive diagnosis and repeat histology of a gallbladder specimen from LC showed chronic cholecystitis during the postoperative histopathological examination 5 years prior. Conclusion: This case is uncommon because of the long delay prior to the presentation of PSM, the long-term survival duration after PSM and the difficulty of identification. Abbreviations: PSM: Port-Site Metastasis; LC: Laparoscopic Cholecystectomy; IGBC: Incidental Gallbladder Carcinoma; CT: Computed Tomography; MRI: Magnetic Resonance Imaging; CA: Carbohydrate Antigen; PET-CT - Positron Emission Tomography–Computed Tomography; PSE: Port-Site Excision Background Tumors located in the abdominal wall are often related to occupational and iatrogenic factors, and increased cases of abdominal wall metastases are reported along with increased removal of resected tumors by laparoscopy. Since the first laparoscopic cholecystectomy (LC) was performed in 1987, [1] LC has become the gold standard operation for benign disease of the gallbladder. With the explosive increase in LC rates, the incidence of incidental gallbladder carcinoma (IGBC), which has a more favorable prognosis than cancers presenting with symptoms, is found in 0.18-2.1% of patients during or after LC, diagnosed during or after cholecystectomy by pathology has increased [2-5]. Port-site metastasis (PSM) is a complication caused by the removal of IGBC using laparoscopic techniques, with an incidence of 14%–29% [6]. Several authors have reported cases of port-site adenocarcinoma