Appendiceal Tumors

Primary appendiceal tumors are rare (0.9-1.4% of appendectomy specimens; 0.12/million/year). Apecific → pre-op diagnosis hard; intra-op <50%. Asymptomatic; found at laparotomy (mostly malignant) / autopsy (mostly benign). Obstruction → acute appendicitis. Firm spherical mass/yellow-grey cut = suspect. Appendiceal carcinoid: higher malignant grade; 15% metastasis.

Common Symptoms

Lower abdominal pain; diarrhea; ascites; appendiceal obstruction; hematochezia; abdominal pain; cyst; secondary infection; mucocele

Causes and Pathogenesis

Cyst formation (50%): appendiceal obstruction = key; chronic mucosal inflammation/scar/foreign body/adhesion/torsion/compression; secretion distal to obstruction cannot drain.

Treatment

Surgery, drug, supportive therapy

Preventive Measures

No effective prevention; early diagnosis. Anti-cancer foods: soft-shelled turtle/mushrooms/wood ear/kelp/mustard/honey. Vitamin A/C block malignant transformation; C prevents radiation injury/WBC; E promotes cell division/delays aging; B1 improves appetite/reduces radiation symptoms.

Department to Visit

It is recommended to visit the Surgical Oncology department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.