Herpes zoster other imaging findings: Difference between revisions

Jump to navigation Jump to search
m (Robot: Automated text replacement (-{{SIB}} + & -{{EH}} + & -{{EJ}} + & -{{Editor Help}} + & -{{Editor Join}} +))
 
(4 intermediate revisions by 3 users not shown)
Line 1: Line 1:
__NOTOC__
{{Herpes zoster}}
{{Herpes zoster}}
{{CMG}}; L. Katie Morrison, MD; '''Associate Editor(s)-In-Chief:''' {{CZ}}
{{CMG}}; {{AE}}{{DN}}


==Overview==
Imaging is not routinely done to diagnose herpes zoster infection. However, it may be used as part of the work-up of the several but rare complications of herpes zoster infection.


==Other Imaging Findings==
===PET/CT===
A PET/CT scan can present with focal skin lesions and/or reactive lymph node enlargement, with increased FDG (2-deoxy-2[18F]fluro-D-glucose) uptake. Local reactive adenopathy is an important finding on PET/CT scan in patients with herpes zoster infection, but must be correlated with the pertinent skin findings.<ref name="pmid26649113">{{cite journal |vauthors=Wadih A, Rehm PK, Deng C, Douvas M |title=Active herpes zoster infection with cutaneous manifestation and adenopathy on FDG PET/CT |journal=Radiol Case Rep |volume=10 |issue=3 |pages=27–9 |year=2015 |pmid=26649113 |pmc=4634351 |doi=10.1016/j.radcr.2015.06.006 |url=}}</ref>
===MRI===
MRI may be used to provide clues for the diagnosis of herpes zoster infection and its complications. However, it is not routinely done in the diagnosis of the infection. Some of the complications and their associated MRI findings include:<ref name="pmid26700334">{{cite journal |vauthors=Soares BP, Provenzale JM |title=Imaging of Herpesvirus Infections of the CNS |journal=AJR Am J Roentgenol |volume=206 |issue=1 |pages=39–48 |year=2016 |pmid=26700334 |doi=10.2214/AJR.15.15314 |url=}}</ref><ref name="pmid15505191">{{cite journal |vauthors=Blumenthal DT, Salzman KL, Baringer JR, Forghani B, Gilden DH |title=MRI abnormalities in chronic active varicella zoster infection |journal=Neurology |volume=63 |issue=8 |pages=1538–9 |year=2004 |pmid=15505191 |doi= |url=}}</ref>
*[[Ramsay Hunt Syndrome]]: in [[Ramsay Hunt Syndrome]], cranial nerve VII appears hyperintense
*[[Cerebellitis]]: may show diffuse symmetric abnormal high signal intensity and swelling of the cerebellar cortex
*[[Vasculitis]]: MRI may show an area of infarction of the cerebral cortex
*[[Myelitis]]: spinal cord lesions appear as hyperintense
*In rare cases of chronic active herpes zoster infection, MRI shows extensive swelling and enhancement of the involved [[dorsal root ganglion]] and nerve roots


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
[[Category:Infectious skin diseases]]
[[Category:Viral diseases]]
[[Category:Herpesviruses]]
[[Category:Infectious disease]]


{{WS}}
{{WS}}
{{WH}}
{{WH}}

Latest revision as of 17:36, 24 October 2016

Herpes zoster Microchapters

Home

Patient Information

Overview

Historical Perspective

Pathophysiology

Causes

Differentiating Herpes zoster from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Herpes Zoster
Congenital Varicella Syndrome

Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Herpes zoster other imaging findings On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Herpes zoster other imaging findings

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Herpes zoster other imaging findings

CDC on Herpes zoster other imaging findings

Herpes zoster other imaging findings in the news

Blogs on Herpes zoster other imaging findings

Directions to Hospitals Treating Herpes zoster

Risk calculators and risk factors for Herpes zoster other imaging findings

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

Overview

Imaging is not routinely done to diagnose herpes zoster infection. However, it may be used as part of the work-up of the several but rare complications of herpes zoster infection.

Other Imaging Findings

PET/CT

A PET/CT scan can present with focal skin lesions and/or reactive lymph node enlargement, with increased FDG (2-deoxy-2[18F]fluro-D-glucose) uptake. Local reactive adenopathy is an important finding on PET/CT scan in patients with herpes zoster infection, but must be correlated with the pertinent skin findings.[1]

MRI

MRI may be used to provide clues for the diagnosis of herpes zoster infection and its complications. However, it is not routinely done in the diagnosis of the infection. Some of the complications and their associated MRI findings include:[2][3]

  • Ramsay Hunt Syndrome: in Ramsay Hunt Syndrome, cranial nerve VII appears hyperintense
  • Cerebellitis: may show diffuse symmetric abnormal high signal intensity and swelling of the cerebellar cortex
  • Vasculitis: MRI may show an area of infarction of the cerebral cortex
  • Myelitis: spinal cord lesions appear as hyperintense
  • In rare cases of chronic active herpes zoster infection, MRI shows extensive swelling and enhancement of the involved dorsal root ganglion and nerve roots

References

  1. Wadih A, Rehm PK, Deng C, Douvas M (2015). "Active herpes zoster infection with cutaneous manifestation and adenopathy on FDG PET/CT". Radiol Case Rep. 10 (3): 27–9. doi:10.1016/j.radcr.2015.06.006. PMC 4634351. PMID 26649113.
  2. Soares BP, Provenzale JM (2016). "Imaging of Herpesvirus Infections of the CNS". AJR Am J Roentgenol. 206 (1): 39–48. doi:10.2214/AJR.15.15314. PMID 26700334.
  3. Blumenthal DT, Salzman KL, Baringer JR, Forghani B, Gilden DH (2004). "MRI abnormalities in chronic active varicella zoster infection". Neurology. 63 (8): 1538–9. PMID 15505191.

Template:WS Template:WH