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Difference between revisions of "Fecal material"
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{{ Infobox diagnosis | |||
| Name = {{PAGENAME}} | |||
| Image = Tubular adenoma and food particle -- high mag.jpg | |||
| Width = | |||
| Caption = A food particle and a [[traditional adenoma|tubular adenoma]]. [[H&E stain]]. | |||
| Micro = plant matter - has cell walls, meat - skeletal muscle without nuclei, microorganisms (bacilli, cocci), +/-colorectal mucosa | |||
| Subtypes = | |||
| LMDDx = [[necrosis]] | |||
| Stains = | |||
| IHC = | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = soft material, amorphous, friable | |||
| Grossing = | |||
| Site = [[cecum]], [[colon]], [[rectum]] | |||
| Assdx = | |||
| Syndromes = | |||
| Clinicalhx = poor bowel preparation | |||
| Signs = | |||
| Symptoms = | |||
| Prevalence = relatively common | |||
| Bloodwork = | |||
| Rads = | |||
| Endoscopy = polypoid lesion | |||
| Prognosis = benign | |||
| Other = | |||
| ClinDDx = [[gastrointestinal polyp]] | |||
| Tx = | |||
}} | |||
'''Fecal material''', also '''fecal matter''', is poo. It is seen in [[gastrointestinal pathology]]. | '''Fecal material''', also '''fecal matter''', is poo. It is seen in [[gastrointestinal pathology]]. | ||
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*Common. | *Common. | ||
*Associated with poor bowel preparation. | *Associated with poor bowel preparation. | ||
**People on a low-fibre diet seem to have less of 'em.<ref name=pmid20566777>{{Cite journal | last1 = Liedenbaum | first1 = MH. | last2 = Denters | first2 = MJ. | last3 = de Vries | first3 = AH. | last4 = van Ravesteijn | first4 = VF. | last5 = Bipat | first5 = S. | last6 = Vos | first6 = FM. | last7 = Dekker | first7 = E. | last8 = Stoker | first8 = J. | title = Low-fiber diet in limited bowel preparation for CT colonography: Influence on image quality and patient acceptance. | journal = AJR Am J Roentgenol | volume = 195 | issue = 1 | pages = W31-7 | month = Jul | year = 2010 | doi = 10.2214/AJR.09.3572 | PMID = 20566777 }}</ref> | |||
*Endoscopists go after anything that is polypoid and that may be nothing more than poo. | *Endoscopists go after anything that is polypoid and that may be nothing more than poo. | ||
==Gross== | |||
*Soft amorphous material. | |||
*+/-Friable. | |||
DDx: | |||
*[[Colonic cast]] - membranous appearance; described as airbladder of fish-like.<ref name=pmid8199700>{{Cite journal | last1 = Yoshiji | first1 = H. | last2 = Nakae | first2 = D. | last3 = Sugiya | first3 = R. | last4 = Mizumoto | first4 = Y. | last5 = Tsutsumi | first5 = M. | last6 = Hiriguchi | first6 = K. | last7 = Yokose | first7 = Y. | last8 = Sakurai | first8 = R. | last9 = Fukui | first9 = H. | title = Spontaneous passage of a colon cast in the absence of abdominal aneurysm. | journal = J Gastroenterol | volume = 29 | issue = 1 | pages = 80-3 | month = Feb | year = 1994 | doi = | PMID = 8199700 }}</ref> | |||
**Arises in [[colonic ischemia]]<ref name=pmid25216411>{{Cite journal | last1 = Abe | first1 = S. | last2 = Yamaguchi | first2 = H. | last3 = Murono | first3 = K. | last4 = Kanazawa | first4 = T. | last5 = Ishihara | first5 = S. | last6 = Sunami | first6 = E. | last7 = Watanabe | first7 = T. | title = Passage of a sigmoid colon cast in a patient with ischemic colitis. | journal = Int Surg | volume = 99 | issue = 5 | pages = 500-5 | month = | year = | doi = 10.9738/INTSURG-D-14-00066.1 | PMID = 25216411 }}</ref> - typically post-AAA repair or after colorectal surgery.<ref name=pmid17564753>{{Cite journal | last1 = Erguney | first1 = S. | last2 = Yavuz | first2 = N. | last3 = Ersoy | first3 = YE. | last4 = Teksoz | first4 = S. | last5 = Selcuk | first5 = D. | last6 = Ogut | first6 = G. | last7 = Dogusoy | first7 = G. | last8 = Alver | first8 = O. | title = Passage of "colonic cast" after colorectal surgery: report of four cases and review of the literature. | journal = J Gastrointest Surg | volume = 11 | issue = 8 | pages = 1045-51 | month = Aug | year = 2007 | doi = 10.1007/s11605-007-0194-z | PMID = 17564753 }}</ref> | |||
==Microscopic== | ==Microscopic== | ||
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***Thick cell walls often without cytoplasm and usually without a nucleus. | ***Thick cell walls often without cytoplasm and usually without a nucleus. | ||
*Meat: | *Meat: | ||
**Eosinophilic | **Essentially ischemic skeletal muscle without inflammation. | ||
*** | ***Eosinophilic material without nuclei and without inflammation. | ||
****Honeycomb-like when fibres seen in cross-section. | |||
*+/-Microorganisms. | *+/-Microorganisms. | ||
*+/-Inflammatory cells. | *+/-Inflammatory cells. | ||
| Line 20: | Line 60: | ||
*[[Necrosis]]. | *[[Necrosis]]. | ||
**[[Gastrointestinal tract polyps#Colorectal adenocarcinoma|Colorectal adenocarcinoma]]. | **[[Gastrointestinal tract polyps#Colorectal adenocarcinoma|Colorectal adenocarcinoma]]. | ||
*[[Foreign material]]. | |||
===Images=== | |||
<gallery> | |||
Image: Anucleate striated muscle -- intermed mag.jpg | Anucleate striated muscle - intermed. mag. | |||
Image: Anucleate striated muscle -- high mag.jpg | Anucleate striated muscle - high mag. | |||
Image: Anucleate striated muscle - diag -- high mag.jpg | Anucleate striated muscle - high mag. | |||
Image: Anucleate striated muscle -- extremely high mag.jpg | Anucleate striated muscle - extremely high mag. | |||
</gallery> | |||
<gallery> | |||
Image:Tubular adenoma and food particle -- intermed mag.jpg | [[Tubular adenoma of the gastrointestinal tract|TA]] and plant material - intermed. mag. | |||
Image:Tubular adenoma and food particle -- high mag.jpg | TA and plant material - high mag. | |||
Image:Tubular adenoma and food particle -- very high mag.jpg | Plant material - very high mag. | |||
</gallery> | |||
==Sign out== | ==Sign out== | ||
*Often ignored if colorectal mucosa is present. | |||
<pre> | |||
Submitted as "Polyp", Cecum, Biopsy or Polypectomy: | |||
- Fecal material only. | |||
- NEGATIVE for definite colonic type mucosa. | |||
</pre> | |||
===Block letters=== | |||
<pre> | <pre> | ||
TRANSVERSE COLON, BIOPSY: | TRANSVERSE COLON, BIOPSY: | ||
- FECAL MATERIAL. | - FECAL MATERIAL. | ||
- | - NEGATIVE FOR DEFINITE COLONIC MUCOSA IDENTIFIED. | ||
</pre> | |||
===Alternate=== | |||
<pre> | |||
ASCENDING COLON ("POLYP"), REMOVAL: | |||
- CONSISTENT WITH PARTIALLY DIGESTED FOOD. | |||
- NEGATIVE FOR DEFINITE COLONIC MUCOSA. | |||
</pre> | </pre> | ||
====Micro==== | |||
The sections show a fragment of striated muscle without nuclei and without inflammation, | |||
with scant microorganisms. No colorectal mucosa is identified. | |||
===Rectum=== | ===Rectum=== | ||
| Line 32: | Line 106: | ||
RECTUM, BIOPSY: | RECTUM, BIOPSY: | ||
- FECAL MATERIAL. | - FECAL MATERIAL. | ||
- | - NEGATIVE FOR DEFINITE RECTAL MUCOSA. | ||
</pre> | </pre> | ||
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*[[Gastrointestinal tract polyps]]. | *[[Gastrointestinal tract polyps]]. | ||
*[[Gastrointestinal pathology]]. | *[[Gastrointestinal pathology]]. | ||
*[[Foreign material]]. | |||
==References== | |||
{{Reflist|1}} | |||
[[Category:Colon]] | |||
[[Category:Diagnosis]] | [[Category:Diagnosis]] | ||