The authors propose to discuss the clinical,
imaging and pathologic features of primary appendiceal neoplasms.
Primary appendiceal neoplasms are rare.
With exception of carcinoid tumors,
most of them are seen in middle-aged or older patients. Although other clinical manifestations are known,
approximately 30-50% of all appendiceal neoplasms will manifest as an acute appendicitis.
Other signs and symptoms include a painful palpable mass,
ureteral obstruction or hematuria,
intussusceptionand increasing abdominal girth from rupture of a malignant mucocele,
Imaging findings OR Procedure details
This Educational Exhibit presents a clinical,
pathologic and imaging approach to the primary neoplasms of appendix.
Cross-sectional imaging plays a central role on evaluation of these neoplasms,
when integrated in an appropriate clinical context. Particularly computed tomography is important in detection or exclusion of appendiceal tumors and may indicate a more specific diagnosis.
Kende AI (2002) Primary neoplasms of the appendix manifesting as acute appendicitis: CT findings with comparison.
Radiology 224:775-781 Pickhardt PJ,
Kende AI (2003) Primary neoplasms of the appendix: Radiology spectrum of disease with pathologic correlation.
Radiographics 23: 645-662 Pickhardt PJ,
Kende AI (2002)Non-Hodgkin's lymphoma of the appendix: Clinical and CT findings with pathologic...
Elisa Melo Abreu (email@example.com) Interna Complementar de Radiologia Serviço de Radiologia do Instituto Português de Oncologia de Lisboa,
EPE Diretor do Serviço: Dr.