Difference between revisions of "Cystic tumour of the atrioventricular nodal region"

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'''Cystic tumour of the atrioventricular nodal region''', abbreviated '''CTAVNR''', is a rare cardiac tumour that can lead to [[sudden cardiac death]].
'''Cystic tumour of the atrioventricular nodal region''', abbreviated '''CTAVNR''', is a rare cardiac tumour that can lead to [[sudden cardiac death]].


It is also known as '''cystic tumour of the atrioventricular node'''. ''Benign mesothelioma of the atrioventricular node'' is also used; however, these tumour are not ''[[mesothelioma]]s''.<ref name=pmid16254122>{{Cite journal  | last1 = Evans | first1 = CA. | last2 = Suvarna | first2 = SK. | title = Cystic atrioventricular node tumour: not a mesothelioma. | journal = J Clin Pathol | volume = 58 | issue = 11 | pages = 1232 | month = Nov | year = 2005 | doi =  | PMID = 16254122 }}</ref>
It is also known as '''cystic tumour of the atrioventricular node'''.  
 
''Benign mesothelioma of the atrioventricular node'' is also used; however, these tumours are not ''[[mesothelioma]]s''.<ref name=pmid16254122>{{Cite journal  | last1 = Evans | first1 = CA. | last2 = Suvarna | first2 = SK. | title = Cystic atrioventricular node tumour: not a mesothelioma. | journal = J Clin Pathol | volume = 58 | issue = 11 | pages = 1232 | month = Nov | year = 2005 | doi =  | PMID = 16254122 }}</ref>


==General==
==General==

Revision as of 05:00, 21 July 2016

Cystic tumour of the atrioventricular nodal region
Diagnosis in short

Cystic tumour of the atrioventricular nodal region. H&E stain.
Synonyms cystic tumour of the atrioventricular node
LM cystic spaces lined by single layer of bland epithelial cells, +/-focal mononuclear inflammation, +/-psammoma bodies
LM DDx cystic metastatic carcinoma
IHC CEA +ve, EMA +ve
Gross very small cysts in region of AV node
Grossing notes see conducting system of heart
Site heart - see cardiac tumours
Clinical history sudden cardiac death
Prevalence very rare
Prognosis good if caught in time
Treatment excision

Cystic tumour of the atrioventricular nodal region, abbreviated CTAVNR, is a rare cardiac tumour that can lead to sudden cardiac death.

It is also known as cystic tumour of the atrioventricular node.

Benign mesothelioma of the atrioventricular node is also used; however, these tumours are not mesotheliomas.[1]

General

Gross

  • "Bump" in the triangle of Koch.
  • Cystic spaces.

Microscopic

Features:[3]

  • Cystic spaces lined with single layer of epithelial cells.
  • +/-Focal mononuclear inflammation.
  • +/-Psammoma bodies.

DDx:

Images

  • CTAVNR - very low mag. (WC)

  • CTAVNR - high mag. (WC)

IHC

Features:[1]

  • CEA +ve.
  • EMA +ve.
  • CK7 +ve.
  • Calretinin -ve.
  • WT1 -ve.

See also

References

  1. ↑ 1.0 1.1 Evans, CA.; Suvarna, SK. (Nov 2005). "Cystic atrioventricular node tumour: not a mesothelioma.". J Clin Pathol 58 (11): 1232. PMID 16254122.
  2. ↑ Kaminishi, Y.; Watanabe, Y.; Nakata, H.; Shimokama, T.; Jikuya, T. (Jan 2002). "Cystic tumor of the atrioventricular nodal region.". Jpn J Thorac Cardiovasc Surg 50 (1): 37-9. PMID 11855098.
  3. ↑ 3.0 3.1 Paniagua, JR.; Sadaba, JR.; Davidson, LA.; Munsch, CM. (Apr 2000). "Cystic tumour of the atrioventricular nodal region: report of a case successfully treated with surgery.". Heart 83 (4): E6. PMID 10722558.
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