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  • The following term was not found in MedGen: 5.omicron.

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
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

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

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