U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination
  • The following term was not found in MedGen: B2.opop.

Signet ring sign

MedGen UID:
1696600
•Concept ID:
C5139172
•
Finding
HPO: HP:0032175

Definition

This finding is composed of a ring-shaped opacity representing a dilated bronchus in cross section and a smaller adjacent opacity representing its pulmonary artery, with the combination resembling a signet (or pearl) ring. It is the basic sign of bronchiectasis in pulmonary computed tomography imaging. [from HPO]

Professional guidelines

PubMed

Improved plain film criteria for the diagnosis of bronchiectasis.
Woodring JH
J Ky Med Assoc 1994 Jan;92(1):8-13. PMID: 8120445

Recent clinical studies

Etiology

Signs in chest imaging.
Algın O, Gökalp G, Topal U
Diagn Interv Radiol 2011 Mar;17(1):18-29. Epub 2010 Jul 28 doi: 10.4261/1305-3825.DIR.2901-09.1. PMID: 20669122
The clock face guide to peroneal intraneural ganglia: critical "times" and sites for accurate diagnosis.
Spinner RJ, Luthra G, Desy NM, Anderson ML, Amrami KK
Skeletal Radiol 2008 Dec;37(12):1091-9. Epub 2008 Jul 19 doi: 10.1007/s00256-008-0545-1. PMID: 18641980

Diagnosis

Tarsal tunnel ganglion cyst: intraneural or extraneural site?
Jover-Sánchez JJ, Cristóbal-Velasco L, Benza-Villarejo E, Maldonado-Morillo AA
Radiologia (Engl Ed) 2023 Oct;65 Suppl 2:S74-S77. Epub 2023 Sep 16 doi: 10.1016/j.rxeng.2023.09.005. PMID: 37858356
Pulmonary hemangioma mimicking bronchiectasis: A case report.
Li W, Xin T, Hu Y, Gao P, Chen M, Zhang J
Medicine (Baltimore) 2018 Jun;97(25):e11203. doi: 10.1097/MD.0000000000011203. PMID: 29924044Free PMC Article
Signs in chest imaging.
Algın O, Gökalp G, Topal U
Diagn Interv Radiol 2011 Mar;17(1):18-29. Epub 2010 Jul 28 doi: 10.4261/1305-3825.DIR.2901-09.1. PMID: 20669122
The clock face guide to peroneal intraneural ganglia: critical "times" and sites for accurate diagnosis.
Spinner RJ, Luthra G, Desy NM, Anderson ML, Amrami KK
Skeletal Radiol 2008 Dec;37(12):1091-9. Epub 2008 Jul 19 doi: 10.1007/s00256-008-0545-1. PMID: 18641980
Cystic transverse limb of the articular branch: a pathognomonic sign for peroneal intraneural Ganglia at the superior tibiofibular joint.
Spinner RJ, Desy NM, Amrami KK
Neurosurgery 2006 Jul;59(1):157-66; discussion 157-66. doi: 10.1227/01.NEU.0000219820.31012.22. PMID: 16823312

Prognosis

Rare findings in high resolution computed tomography (HRCT) in interstitial lung diseases.
Pasławski M, Rucińska E, Złomaniec J
Ann Univ Mariae Curie Sklodowska Med 2003;58(2):394-401. PMID: 15323225

Clinical prediction guides

Radial wrist extensors as a dynamic stabilizers of scapholunate complex.
Elsaftawy A
Pol Przegl Chir 2013 Aug;85(8):452-9. doi: 10.2478/pjs-2013-0069. PMID: 24009056
Rare findings in high resolution computed tomography (HRCT) in interstitial lung diseases.
Pasławski M, Rucińska E, Złomaniec J
Ann Univ Mariae Curie Sklodowska Med 2003;58(2):394-401. PMID: 15323225
CT in pulmonary hydatid disease: unusual appearances.
Koul PA, Koul AN, Wahid A, Mir FA
Chest 2000 Dec;118(6):1645-7. doi: 10.1378/chest.118.6.1645. PMID: 11115453

Supplemental Content

Table of contents

    Clinical resources

    Practice guidelines

    • PubMed
      See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the FAQ for details.

    Consumer resources

    Reviews

    Related information

    • PMC Articles
      Related information in PubMed Central Links
    • PubMed
      Related literature resources in PubMed

    Recent activity

    Clear Turn Off Turn On

    Your browsing activity is empty.

    Activity recording is turned off.

    Turn recording back on

    See more...