Difference between revisions of "Urachal remnant"

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'''Urachal cyst''' is a benign finding.
'''Urachal remnant''' is a benign congenital abnormality that occasionally becomes symtpomatic.
 
It includes:<ref>{{cite journal |author=Naiditch JA, Radhakrishnan J, Chin AC |title=Current diagnosis and management of urachal remnants |journal=J. Pediatr. Surg. |volume=48 |issue=10 |pages=2148–52 |year=2013 |month=October |pmid=24094971 |doi=10.1016/j.jpedsurg.2013.02.069 |url=}}</ref>
*Urachal cyst.
*Urachal diverticulum.
*Patent urachus.  


==General==
==General==
*Benign.
*Benign.
*Asymptomatic.
*Often asymptomatic.
 
*May become inflamed and be symptomatic.
==General==
**Can cause "fever of unknown origin".<ref name=pmid24661549>{{cite journal |author=Bagnara V, Antoci S, Bonforte S, Privitera G, Luca T, Castorina S |title=Clinical considerations, management and treatment of fever of unknown origin caused by urachal cyst: a case report |journal=J Med Case Rep |volume=8 |issue=1 |pages=106 |year=2014 |pmid=24661549 |pmc=3978086 |doi=10.1186/1752-1947-8-106 |url=}}</ref>
*May bulge into the [[urinary bladder]].<ref name=pmid11828771/>
*Common in adults - possibly up to 30% of population.<ref name=auanet>URL: [https://www.auanet.org/education/modules/pathology/bladder-histoanatomic/urachal-remnant.cfm https://www.auanet.org/education/modules/pathology/bladder-histoanatomic/urachal-remnant.cfm]. Accessed on: 30 March 2015.</ref>
==Gross==
*Between umbilicus and dome of [[urinary bladder|bladder]].
**May bulge into the [[urinary bladder]].<ref name=pmid11828771/>


==Microscopic==
==Microscopic==
Features:<re>{{Ref GU|146}}</ref><ref name=pmid11828771>{{cite journal |author=Yagishita H, Nagayama T, Zean Z, ''et al.'' |title=[A case of asymptomatic urachal cyst in autopsy--histopathological study of urachal cyst and review of the literature of 99 cases during a 10 year period in Japan] |language=Japanese |journal=Hinyokika Kiyo |volume=47 |issue=12 |pages=849–52 |year=2001 |month=December |pmid=11828771 |doi= |url=}}</ref>
Features:<ref>{{Ref GUP|146}}</ref>
*Cuboidal or urothelial lining.
*Cuboidal<ref name=pmid11828771>{{cite journal |author=Yagishita H, Nagayama T, Zean Z, ''et al.'' |title=[A case of asymptomatic urachal cyst in autopsy--histopathological study of urachal cyst and review of the literature of 99 cases during a 10 year period in Japan] |language=Japanese |journal=Hinyokika Kiyo |volume=47 |issue=12 |pages=849–52 |year=2001 |month=December |pmid=11828771 |doi= |url=}}</ref> or urothelial lining.
**May have a columnar lining.
*Fibrous wall.
*Fibrous wall.
*+/-Goblet cells.<ref name=auanet>URL: [https://www.auanet.org/education/modules/pathology/bladder-histoanatomic/urachal-remnant.cfm https://www.auanet.org/education/modules/pathology/bladder-histoanatomic/urachal-remnant.cfm]. Accessed on: 30 March 2015.</ref> ‡
Notes:
* ‡ Goblet cells tend to be older individuals. Urothelial lining typical for individuals <20 years old.<ref name=auanet/>


==Sign out==
==Sign out==
<pre>
<pre>
LESION ("URACHAL REMNANT"), EXCISION:
LESION ("URACHAL REMNANT"), EXCISION:
- CYST WITH SIMPLE CUBOIDAL EPITHELIUM AND FIBROUS WALL, CONSISTENT WITH
- CYST WITH BENIGN SIMPLE CUBOIDAL EPITHELIUM AND FIBROUS WALL, CONSISTENT WITH
   URACHAL REMNANT.
   URACHAL CYST.
- NO SIGNIFICANT INFLAMMATION.
- NO SIGNIFICANT INFLAMMATION.
- NEGATIVE FOR MALIGNANCY.
- NEGATIVE FOR MALIGNANCY.

Latest revision as of 17:43, 30 March 2015

Urachal remnant is a benign congenital abnormality that occasionally becomes symtpomatic.

It includes:[1]

  • Urachal cyst.
  • Urachal diverticulum.
  • Patent urachus.

General

  • Benign.
  • Often asymptomatic.
  • May become inflamed and be symptomatic.
    • Can cause "fever of unknown origin".[2]
  • Common in adults - possibly up to 30% of population.[3]

Gross

Microscopic

Features:[5]

  • Cuboidal[4] or urothelial lining.
    • May have a columnar lining.
  • Fibrous wall.
  • +/-Goblet cells.[3] ‡

Notes:

  • ‡ Goblet cells tend to be older individuals. Urothelial lining typical for individuals <20 years old.[3]

Sign out

LESION ("URACHAL REMNANT"), EXCISION:
- CYST WITH BENIGN SIMPLE CUBOIDAL EPITHELIUM AND FIBROUS WALL, CONSISTENT WITH
  URACHAL CYST.
- NO SIGNIFICANT INFLAMMATION.
- NEGATIVE FOR MALIGNANCY.

See also

References

  1. ↑ Naiditch JA, Radhakrishnan J, Chin AC (October 2013). "Current diagnosis and management of urachal remnants". J. Pediatr. Surg. 48 (10): 2148–52. doi:10.1016/j.jpedsurg.2013.02.069. PMID 24094971.
  2. ↑ Bagnara V, Antoci S, Bonforte S, Privitera G, Luca T, Castorina S (2014). "Clinical considerations, management and treatment of fever of unknown origin caused by urachal cyst: a case report". J Med Case Rep 8 (1): 106. doi:10.1186/1752-1947-8-106. PMC 3978086. PMID 24661549. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3978086/.
  3. ↑ 3.0 3.1 3.2 URL: https://www.auanet.org/education/modules/pathology/bladder-histoanatomic/urachal-remnant.cfm. Accessed on: 30 March 2015.
  4. ↑ 4.0 4.1 Yagishita H, Nagayama T, Zean Z, et al. (December 2001). "[A case of asymptomatic urachal cyst in autopsy--histopathological study of urachal cyst and review of the literature of 99 cases during a 10 year period in Japan]" (in Japanese). Hinyokika Kiyo 47 (12): 849–52. PMID 11828771.
  5. ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 146. ISBN 978-0443066771.
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