Difference between revisions of "Negative appendectomy"
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A '''negative appendectomy''' is an appendectomy done for presumed [[acute appendicitis]] that is | A '''negative appendectomy''' is an appendectomy done for presumed [[acute appendicitis]] that yields an appendix, that on [[pathology]], is within normal limits. | ||
==General== | ==General== | ||
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==See also== | ==See also== | ||
*[[Normal appendix]]. | *[[Normal appendix]]. | ||
*[[Vermiform appendix]]. | |||
==References== | ==References== | ||
Revision as of 14:14, 5 May 2016
A negative appendectomy is an appendectomy done for presumed acute appendicitis that yields an appendix, that on pathology, is within normal limits.
General
- Common.
- Use for quality control among general surgeons.[citation needed]
Gross
See normal vermiform appendix.
DDx:
- Fecal-impacted appendix.[1]
Microscopic
See normal vermiform appendix.
Notes:
- Should be submitted in total.
DDx:
- Acute appendicitis.
- Adenovirus appendicitis.
- Appendiceal neuroendocrine tumour.
- Non-appendiceal pathology - see DDx of acute appendicitis.
- Isolated periappendicitis.
- Crypt cell carcinoma - AKA goblet cell carcinoid.
Sign out
Vermiform Appendix, Appendectomy: - Appendix within normal limits. - One benign lymph node. - NEGATIVE for acute appendicitis and NEGATIVE for periappendicitis. Comment: The specimen was submitted in total.
Block letters
VERMIFORM APPENDIX, APPENDECTOMY: - APPENDIX NEGATIVE FOR ACUTE APPENDICITIS AND NEGATIVE FOR ACUTE PERIAPPENDICITIS.
VERMIFORM APPENDIX, APPENDECTOMY: - APPENDIX WITH LYMPHOID HYPERPLASIA AND FOCAL MUCOSAL EROSIONS. - NEGATIVE FOR ACUTE APPENDICITIS. - NEGATIVE FOR ACUTE PERIAPPENDICITIS.
Micro
The sections show appendiceal wall with focal mucosa erosions and several intraluminal neutrophil clusters. Lymphoid hyperplasia is present. Fecal material is present within the lumen of the appendix.
There are no neutrophils within the muscularis propria. There is no serositis. There is no distortion of the crypt architecture. No granulomas are identified. No cryptitis is identified.
Alternate
The section show appendiceal wall without increased numbers of neutrophils. The appendiceal lumen has cellular debris and inflammatory cells. The mucosa has prominent lymphoid tissue with germinal centre formation.
No intraluminal pathologic micro-organisms are seen. There is no serositis. There is no distortion of the crypt architecture. No granulomas are identified. No cryptitis is identified.
See also
References
- ↑ Park, NH.; Park, CS.; Lee, EJ.; Kim, MS.; Ryu, JA.; Bae, JM.; Song, JS. (Nov 2007). "Ultrasonographic findings identifying the faecal-impacted appendix: differential findings with acute appendicitis.". Br J Radiol 80 (959): 872-7. doi:10.1259/bjr/80553348. PMID 17875592.