Sheehan's syndrome MRI: Difference between revisions

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==Overview==
==Overview==
Findings on MRI suggestive  of [[Sheehan's syndrome]] include decreased sellar volume, [[empty sella]], pituitary remnant tissue or [[Cerebrospinal fluid|CSF]] in [[sella]].
Findings on MRI suggestive  of [[Sheehan's syndrome]] include decreased sellar volume, [[empty sella]], pituitary remnant tissue or [[Cerebrospinal fluid|CSF]] in the [[sella]].


==MRI==
==MRI==
*MRI shows an [[empty sella]], in chronic cases of [[Sheehan's syndrome]].<ref name="pmid2750772">{{cite journal |vauthors=Barkan AL |title=Pituitary atrophy in patients with Sheehan's syndrome |journal=Am. J. Med. Sci. |volume=298 |issue=1 |pages=38–40 |year=1989 |pmid=2750772 |doi= |url=}}</ref><ref name="pmid2591059">{{cite journal |vauthors=Sherif IH, Vanderley CM, Beshyah S, Bosairi S |title=Sella size and contents in Sheehan's syndrome |journal=Clin. Endocrinol. (Oxf) |volume=30 |issue=6 |pages=613–8 |year=1989 |pmid=2591059 |doi= |url=}}</ref><ref name="pmid1906495">{{cite journal |vauthors=Bakiri F, Bendib SE, Maoui R, Bendib A, Benmiloud M |title=The sella turcica in Sheehan's syndrome: computerized tomographic study in 54 patients |journal=J. Endocrinol. Invest. |volume=14 |issue=3 |pages=193–6 |year=1991 |pmid=1906495 |doi=10.1007/BF03346787 |url=}}</ref>
An MRI can done to diagnose Sheehan's syndrome and to exclude any suspected pituitary mass.The MRI findings in case of Sheehan's syndrome include:
*It can also show decreased sellar volume, pituitary remnant tissue or [[Cerebrospinal fluid|CSF]] in sella.
*An [[empty sella]], in chronic cases of [[Sheehan's syndrome]].<ref name="pmid2750772">{{cite journal |vauthors=Barkan AL |title=Pituitary atrophy in patients with Sheehan's syndrome |journal=Am. J. Med. Sci. |volume=298 |issue=1 |pages=38–40 |year=1989 |pmid=2750772 |doi= |url=}}</ref><ref name="pmid2591059">{{cite journal |vauthors=Sherif IH, Vanderley CM, Beshyah S, Bosairi S |title=Sella size and contents in Sheehan's syndrome |journal=Clin. Endocrinol. (Oxf) |volume=30 |issue=6 |pages=613–8 |year=1989 |pmid=2591059 |doi= |url=}}</ref><ref name="pmid1906495">{{cite journal |vauthors=Bakiri F, Bendib SE, Maoui R, Bendib A, Benmiloud M |title=The sella turcica in Sheehan's syndrome: computerized tomographic study in 54 patients |journal=J. Endocrinol. Invest. |volume=14 |issue=3 |pages=193–6 |year=1991 |pmid=1906495 |doi=10.1007/BF03346787 |url=}}</ref>
*It is done to exclude any pituitary mass.
*Decreased sellar volume, pituitary remnant tissue or [[Cerebrospinal fluid|CSF]] in sella.  


==MRI==
*'''Early MRI findings'''
*'''Early'''
**Enlarged pituitary, with low [[T1]], high [[MRI|T2]] homogenous signal may be seen.
**Enlarged pituitary, with low [[T1]], high [[MRI|T2]] homogenous signal
**Ring enhancement is observed.
**Ring enhancement
*'''Late '''MRI findings''''''
*'''Late'''
**[[Empty sella]] of normal size.<ref name="pmid18296547">{{cite journal |vauthors=Kaplun J, Fratila C, Ferenczi A, Yang WC, Lantos G, Fleckman AM, Schubart UK |title=Sequential pituitary MR imaging in Sheehan syndrome: report of 2 cases |journal=AJNR Am J Neuroradiol |volume=29 |issue=5 |pages=941–3 |year=2008 |pmid=18296547 |doi=10.3174/ajnr.A1016 |url=}}</ref>
**[[Empty sella]] of normal size.<ref name="pmid18296547">{{cite journal |vauthors=Kaplun J, Fratila C, Ferenczi A, Yang WC, Lantos G, Fleckman AM, Schubart UK |title=Sequential pituitary MR imaging in Sheehan syndrome: report of 2 cases |journal=AJNR Am J Neuroradiol |volume=29 |issue=5 |pages=941–3 |year=2008 |pmid=18296547 |doi=10.3174/ajnr.A1016 |url=}}</ref>
[[ File:Empty sella gif.gif |thumb|left|350px|Empty Sella. Source: Wikimedia Commons<ref name="urlFile:Empty Sella MRT FLAIR sag 001.jpg - Wikimedia Commons">{{cite web |url=https://commons.wikimedia.org/wiki/File:Empty_Sella_MRT_FLAIR_sag_001.jpg |Hellerhoff |title=File:Empty Sella MRT FLAIR sag 001.jpg - Wikimedia Commons |format= |work= |accessdate=}}</ref>]]
[[ File:Empty sella gif.gif |thumb|left|350px|Empty Sella. Source: Wikimedia Commons<ref name="urlFile:Empty Sella MRT FLAIR sag 001.jpg - Wikimedia Commons">{{cite web |url=https://commons.wikimedia.org/wiki/File:Empty_Sella_MRT_FLAIR_sag_001.jpg |Hellerhoff |title=File:Empty Sella MRT FLAIR sag 001.jpg - Wikimedia Commons |format= |work= |accessdate=}}</ref>]]

Revision as of 14:45, 28 August 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Iqra Qamar M.D.[2]


Overview

Findings on MRI suggestive of Sheehan's syndrome include decreased sellar volume, empty sella, pituitary remnant tissue or CSF in the sella.

MRI

An MRI can done to diagnose Sheehan's syndrome and to exclude any suspected pituitary mass.The MRI findings in case of Sheehan's syndrome include:

  • Early MRI findings
    • Enlarged pituitary, with low T1, high T2 homogenous signal may be seen.
    • Ring enhancement is observed.
  • 'Late MRI findings'
Empty Sella. Source: Wikimedia Commons[5]


References

  1. Barkan AL (1989). "Pituitary atrophy in patients with Sheehan's syndrome". Am. J. Med. Sci. 298 (1): 38–40. PMID 2750772.
  2. Sherif IH, Vanderley CM, Beshyah S, Bosairi S (1989). "Sella size and contents in Sheehan's syndrome". Clin. Endocrinol. (Oxf). 30 (6): 613–8. PMID 2591059.
  3. Bakiri F, Bendib SE, Maoui R, Bendib A, Benmiloud M (1991). "The sella turcica in Sheehan's syndrome: computerized tomographic study in 54 patients". J. Endocrinol. Invest. 14 (3): 193–6. doi:10.1007/BF03346787. PMID 1906495.
  4. Kaplun J, Fratila C, Ferenczi A, Yang WC, Lantos G, Fleckman AM, Schubart UK (2008). "Sequential pituitary MR imaging in Sheehan syndrome: report of 2 cases". AJNR Am J Neuroradiol. 29 (5): 941–3. doi:10.3174/ajnr.A1016. PMID 18296547.
  5. "File:Empty Sella MRT FLAIR sag 001.jpg - Wikimedia Commons". Text "Hellerhoff " ignored (help)

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