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

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| Caption    = Cystic tumour of the atrioventricular nodal region. [[H&E stain]].
| Caption    = Cystic tumour of the atrioventricular nodal region. [[H&E stain]].
| Synonyms  =
| Synonyms  =
| Micro      = cystic spaces lined single layer of epithelial cells, +/-focal mononuclear inflammation, +/-[[psammoma bodies]]  
| Micro      = cystic spaces lined single layer of bland epithelial cells, +/-focal mononuclear inflammation, +/-[[psammoma bodies]]  
| Subtypes  =
| Subtypes  =
| LMDDx      =
| LMDDx      = cystic metastatic [[carcinoma]]
| Stains    =
| Stains    =
| IHC        =
| IHC        = CEA +ve, EMA +ve
| EM        =
| EM        =
| Molecular  =
| Molecular  =
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*+/-Focal mononuclear inflammation.
*+/-Focal mononuclear inflammation.
*+/-[[Psammoma bodies]].  
*+/-[[Psammoma bodies]].  
DDx:
*Cystic [[metastatic carcinoma]].


===Images===
===Images===

Revision as of 16:20, 14 July 2016

Cystic tumour of the atrioventricular nodal region
Diagnosis in short

Cystic tumour of the atrioventricular nodal region. H&E stain.

LM cystic spaces lined single layer of bland epithelial cells, +/-focal mononuclear inflammation, +/-psammoma bodies
LM DDx cystic metastatic carcinoma
IHC CEA +ve, EMA +ve
Gross cystic tumour in region of AV node
Grossing notes see conducting system of heart
Site heart - see cardiac tumour

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.

General

Gross

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

Microscopic

Features:[2]

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

DDx:

Images

IHC

  • CEA +ve.
  • EMA +ve.

See also

References

  1. 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.
  2. 2.0 2.1 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.