Difference between revisions of "Fetal thrombotic vasculopathy"

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{{ Infobox diagnosis
| Name      = {{PAGENAME}}
| Image      = Fetal_thrombotic_vasculopathy_-_intermed_mag.jpg
| Width      =
| Caption    = Fetal thrombotic vasculopathy. [[H&E stain]].
| Synonyms  = fibrinous vasculosis, fibromuscular sclerosis, fetal artery stem thrombosis
| Micro      = thrombus in the fetal vasculature +/- recanalization (eosinophilic (light pink on H&E), moderately granular intravascular material (fibrin) with layering), +/-clustered fibrotic villi without blood vessels (chronic)
| Subtypes  =
| LMDDx      =
| Stains    =
| IHC        =
| EM        =
| Molecular  =
| IF        =
| Gross      =
| Grossing  =
| Site      = [[placenta]]
| Assdx      = fetal death, cerebral palsy
| Syndromes  =
| Clinicalhx = +/-prothrombotic condition in mother
| Signs      =
| Symptoms  =
| Prevalence =
| Bloodwork  =
| Rads      =
| Endoscopy  =
| Prognosis  = dependent on severity and underlying cause
| Other      =
| ClinDDx    =
| Tx        =
}}
'''Fetal thrombotic vasculopathy''', abbreviated ''FTV'', is characterized by thrombi in the fetus.  In the context of a [[placenta]], it is thrombi in the fetal [[blood vessel]]s of the placenta.  
'''Fetal thrombotic vasculopathy''', abbreviated ''FTV'', is characterized by thrombi in the fetus.  In the context of a [[placenta]], it is thrombi in the fetal [[blood vessel]]s of the placenta.  


Revision as of 02:19, 22 January 2014

Fetal thrombotic vasculopathy
Diagnosis in short

Fetal thrombotic vasculopathy. H&E stain.
Synonyms fibrinous vasculosis, fibromuscular sclerosis, fetal artery stem thrombosis
LM thrombus in the fetal vasculature +/- recanalization (eosinophilic (light pink on H&E), moderately granular intravascular material (fibrin) with layering), +/-clustered fibrotic villi without blood vessels (chronic)
Site placenta
Associated Dx fetal death, cerebral palsy
Clinical history +/-prothrombotic condition in mother
Prognosis dependent on severity and underlying cause

Fetal thrombotic vasculopathy, abbreviated FTV, is characterized by thrombi in the fetus. In the context of a placenta, it is thrombi in the fetal blood vessels of the placenta.

A large number of terms are used for this including:[1]

  • Fibrinous vasculosis.
  • Fibromuscular sclerosis.
  • Fetal artery stem thrombosis.

The multitude of terms reflects the confusion about this finding and that it has numerous etiologies.[1]

General

  • May cause IUGR.
  • Associated with cerebral palsy and common in perinatal deaths.[2]
  • Mother may have a prothrombotic condition.[3]

Microscopic

Features:[2]

  • Thrombus in the fetal vasculature +/- recanalization.
    • Eosinophilic (light pink on H&E), moderately granular intravascular material (fibrin) with layering.
  • Clustered fibrotic villi without blood vessels - key feature.
    • This is a chronic change.

Images

www:

  • FTV - intermed. mag. (WC)

  • FTV - high mag. (WC)

Sign out

PLACENTA, UMBILICAL CORD AND FETAL MEMBRANES, BIRTH:
- FETAL THROMBOTIC VASCULOPATHY, SEE COMMENT.
- PLACENTAL DISC WITH THIRD TRIMESTER VILLI INCREASED PERIVILLOUS FIBRIN DEPOSITION
  AND CALCIFICATIONS.
- PLACENTAL INFARCT (1.5 CM IN MAXIMAL DIMENSION).
- THREE VESSEL UMBILICAL CORD WITHIN NORMAL LIMITS.
- FETAL MEMBRANES WITHIN NORMAL LIMITS.

COMMENT:
Mother and baby should be worked up for prothrombotic conditions.

See also

References

  1. ↑ 1.0 1.1 Marchetti, D.; Belviso, M.; Fulcheri, E. (Mar 2009). "A case of stillbirth: the importance of placental investigation in medico-legal practice.". Am J Forensic Med Pathol 30 (1): 64-8. doi:10.1097/PAF.0b013e318187387e. PMID 19237859.
  2. ↑ 2.0 2.1 Kraus FT, Acheen VI (July 1999). "Fetal thrombotic vasculopathy in the placenta: cerebral thrombi and infarcts, coagulopathies, and cerebral palsy". Hum. Pathol. 30 (7): 759–69. PMID 10414494. Cite error: Invalid <ref> tag; name "pmid10414494" defined multiple times with different content
  3. ↑ Magnetti, F.; Bagna, R.; Botta, G.; Viano, A.; Dorati, G.; Raia, M.; Bertino, E.; Saracco, P. (Oct 2013). "Fetal Thrombotic Vasculopathy and Perinatal Thrombosis: Should all Placentas be Examined?". Am J Perinatol. doi:10.1055/s-0033-1357267. PMID 24108664.
  4. ↑ URL: http://jcp.bmj.com/content/61/12/1254.abstract. Accessed on: 12 January 2011.
  5. ↑ URL: http://gut.bmj.com/content/41/3/354.full. Accessed on: 12 January 2011.
  6. ↑ URL: http://www.womenandinfants.org/fertilityandpregnancy/current-topics-in-perinatal-pathology.cfm. Accessed on: 17 December 2012.
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