Appendix cancer CT scan

Jump to: navigation, search

Appendix cancer Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Epidemiology and Demographics

Differentiating Appendix cancer from other Diseases

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

X-ray

MRI

CT scan

Echocardiography and Ultrasound

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Appendix cancer CT scan On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Appendix cancer CT scan

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Appendix cancer CT scan

CDC on Appendix cancer CT scan

Appendix cancer CT scan in the news

Blogs on Appendix cancer CT scan

Directions to Hospitals Treating Appendix cancer

Risk calculators and risk factors for Appendix cancer CT scan

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2]

Overview

Abdominal CT scan is helpful in the diagnosis and management of appendix cancer. Findings on CT scan suggestive of appendix cancer include soft tissue thickening, wall irregularity, calcification, internal septations, preappendiceal fat stranding as well as intraperitoneal free fluid. CT scan is also one of the best imaging modalities to assess disease burden, metastatic lesions as well as disease stage.

CT scan

Appendiceal adenocarcinoma complicated by retroperitoneal abscess. Case courtesy of Dr Francis Fortin, Radiopaedia.org, rID: 58007
Appendiceal adenocarcinoma complicated by retroperitoneal abscess: Please note to the suspected appendiceal tip tumor (red) communicating with the retroperitoneal abscess (yellow). Case courtesy of Dr Francis Fortin, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/58007">rID: 58007</a>

Peritoneal carcinomatosis index

  • Peritoneal carcinomatosis index (PCI): A widely accepted metric for assessment of disease border in appendix cancer:[2]
  • Table and figure below demonstrate abdominal regions as well as scoring system for PCI.
Peritoneal Carcinomatosis Index (PCI) Regions
PCI Scoring System
Lesion Size Score
LS0 No tumor seen
LS1 Tumor up to 0.5 cm
LS2 Tumor up to 5 cm cm
LS3 Tumor > 5 cm or confluence
Maximum Score = 3
Regions (0-3)
0 Central
1 Right Upper
2 Epigasterium
3 Left Upper
4 Left Flank
5 Left Lower
6 Pelvis
7 Right Upper
8 Right Flank
9 Upper Jejunum
10 Lower Jejunum
11 Upper Illeum
12 lower Illeum
Maximum Score = 36
Total Maximum Score = 39
Liver metastases from gastrointestinal carcinoid. Case courtesy of Dr Natalie Yang, <a <nowiki>&lt;nowiki&gt;&amp;lt;nowiki&amp;gt;&amp;amp;lt;nowiki&amp;amp;gt;&amp;amp;amp;lt;nowiki&amp;amp;amp;gt;&amp;amp;amp;amp;lt;nowiki&amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;lt;nowiki&amp;amp;amp;amp;amp;gt; &amp;amp;amp;amp;amp;lt;/nowiki&amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/nowiki&amp;amp;amp;amp;gt;&amp;amp;amp;lt;/nowiki&amp;amp;amp;gt;&amp;amp;lt;/nowiki&amp;amp;gt;&amp;lt;/nowiki&amp;gt;&lt;/nowiki&gt;</nowiki>ref="<nowiki>&lt;nowiki&gt;&amp;lt;nowiki&amp;gt;&amp;amp;lt;nowiki&amp;amp;gt;&amp;amp;amp;lt;nowiki&amp;amp;amp;gt;&amp;amp;amp;amp;lt;nowiki&amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;lt;nowiki&amp;amp;amp;amp;amp;gt;https://radiopaedia.org/&amp;amp;amp;amp;amp;lt;/nowiki&amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/nowiki&amp;amp;amp;amp;gt;&amp;amp;amp;lt;/nowiki&amp;amp;amp;gt;&amp;amp;lt;/nowiki&amp;amp;gt;&amp;lt;/nowiki&amp;gt;&lt;/nowiki&gt;</nowiki>">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/7010">rID: 7010</a>
  • Low attenuated, well defined mass in right lower quadrant, near cecum without inflammation points to appendiceal mucocele.

References