| Theme |
Disease of Appendix and its Allied Condition |
| Title |
Rare Diseases of Appendix |
| Author |
Tetsuhisa Yamamoto |
Department of Surgery I, National Defense Medical College |
| [ Summary ] |
Rare diseases of the appendix are reviewed. The incidence of primary adenocarcinoma is 0.O8%. Diagnosis is difficult until the tumor grows large enough. The strategies for treatment of primary malignant lymphoma are still controversial. A new immunopathological sorting system or new staging procedures are being investigated. The origin of appendiceal metastatic cancer is most likely the stomach. Perforation of the metastatic lesion occurs frequently. Intussusception of the appendix upon itself is surgically treated when the presence of a neoplasm cannot be excluded. Symptoms of endometriosis are similar to those of acute appendicitis, and not necessarily in accordance with menstruatural periods. Appendiceal calculi are closely related to the pathogenesis and development of appendicitis. |