case_images: PMC11196944_01
case_images: Contrast-enhanced CT image before and after three years. (A) Coronal contrast-enhanced CT image obtained in 2020. (B) 2020 contrast-enhanced CT image of a dislocation. (C) Coronal contrast-enhanced CT image obtained in 2023. (D) Contrast-enhanced CT image of a dislocation.
case_images: fonc-14-1396265-g001.jpg
case_images: PMC11196944_01_fonc-14-1396265-g001.jpg
case_images: f1
case_images: The tumour markers showed AFP (alpha-fetoprotein) of 1.48 ng/mL, CEA (carcinoembryonic antigen) of 41.98 ng/mL, and CA125 and CA199 were not significantly abnormal ( Figure 1 ).
case_images: Excision of the appendix and periappendiceal mass, right iliofoliac lumbar mass resection, right subinguinal and suprafemoral mass resection. (A) Surgical area. (B) Excision of the appendix and periappendiceal masses. (C-D) The overall characteristics of the sample. (E) Postoperative incision healing.
case_images: fonc-14-1396265-g002.jpg
case_images: PMC11196944_01_fonc-14-1396265-g002.jpg
case_images: f2
case_images: The abdominal cavity tumour had intact membrane, with full dissection of the tumour, followed by the ligation of the appendix artery and the appendix root ( Figure 2 ).
case_images: Pathological findings. (A) Low-grade mucinous tumours of the appendix have incomplete appendix muscles, and the tumour penetrates the visceral peritoneum and involves the striated muscle tissue of the abdominal wall. (B) (Right inguinal skeletal muscle mass, right abdominal wall mass) A large amount of mucus or gelatinous material was measured in the fibrous fat, and a low-grade mucinous tumour of the peritoneum (pseudomyxoma peritonei) was considered. (C) (Abdominal wall lesion) A low-grade mucinous tumour was found, and abdominal dissemination was considered. (D) Immunohistochemistry: CK20(+),CDX-2(+),P53(wild type),Ki67 approximately 60%,CK7(-),MUC-2(+). It is a low-grade mucinous tumour.
case_images: fonc-14-1396265-g003.jpg
case_images: PMC11196944_01_fonc-14-1396265-g003.jpg
case_images: f3
case_images: Postoperative specimens were sent for pathological examination, confirming the diagnosis of a low-grade appendix mucinous tumour with peritoneal mesothelioma ( Figure 3 ).Due to the large size of the patient's mass, it is tightly adhered to the femoral canal, inguinal artery and vein, and femoral nerve, making it impossible to remove the mass entirely.