Table 1

Clinical findings in 17 patients with LAMNs confined to the appendix

Case/sex/ageClinical presentationSymptom durationWBC countsTumor markers level
1/F/71Abdominal pain with a mass in the right iliac fossa6 monthsNormalNormal
2/F/88Acute appendicitis5 daysMild leukocytosisNormal
3/F/48Right lower quadrant pain1 yearNormalNormal
4/F/50Acute appendicitis2 weeksMild leukocytosisNormal
5/F/67Incidental findingNormalNormal
6/M/65Abdominal pain with a mass in the right iliac fossa10 monthsNormalNormal
7/M/49Incidental findingNormalNormal
8/F/54Right lower quadrant pain2 yearsNormalNormal
9/M/65Acute appendicitis2 weeksMild leukocytosisNormal
10/F/59Abdominal pain with a mass in the right iliac fossa3 monthsNormalNormal
11/F/49Acute appendicitis10 daysMild leukocytosisNormal
12/F/54Incidental findingNormalNormal
13/M/65Abdominal pain and change in bowel habits3 monthsNormalSlightly elevated
14/M/61Abdominal pain, anorexia and weight loss1 yearNormalSlightly elevated
15/F/58Acute appendicitis1 weekMild leukocytosisNormal
16/M/37Abdominal pain with a mass in the right iliac fossa4 monthsNormalNormal
17/M/56Abdominal pain, nausea and vomiting2 weeksNormalNormal
  • age, year; F, female; LAMN, low-grade appendiceal mucinous neoplasm; M, male.