TY - JOUR
T1 - Multimodality imaging of foreign bodies
T2 - New insights into old challenges
AU - Carneiro, Bruno C.
AU - Cruz, Isabela A.N.
AU - Chemin, Renan N.
AU - Rizzetto, Thiago A.
AU - Guimarães, Júlio B.
AU - Silva, Flávio D.
AU - Yoshida Junior, Ciro
AU - Pastore, Daniel
AU - Ormond Filho, Alípio G.
AU - Nico, Marcelo A.C.
N1 - Publisher Copyright:
© RSNA, 2020.
PY - 2020/11/1
Y1 - 2020/11/1
N2 - Traumatic wounds and lacerations are a common reason for patients to present to emergency departments, with retained foreign bodies (FBs) accounting for 7%–15% of cases, particularly those involving the extremities. These retained materials result in a granu-lomatous tissue response known as an FB reaction, a pathologic attempt to isolate the FB from the host. The most common FB materials are glass, metal, and wood, but other compositions can also be found, such as plastic and animal-derived materials. Clinical history, physical examination, and wound exploration are essential in investigation of retained material but are not sufficient to exclude an FB, and additional investigation is required. Imaging evaluation is a useful tool to help depict and locate an FB, assess possible complications, and guide removal. Conventional radiography, the first-line method in this scenario, is a widely available low-cost de-piction method that has good sensitivity for depicting FBs. If the retained material is not depicted at conventional radiography, US can be performed. US is highly sensitive in depicting both radiolucent and radiopaque FBs in superficial locations. For deeper objects, CT may be necessary. MRI is the best imaging modality to delineate lo-cal soft-tissue and osseous complications. Retained FBs can result in early and delayed complications, with infection being the most frequent complication. To avoid preventable morbidities related to FBs, radiologists should be familiar with imaging findings and provide essential information to help the attending physician treat each patient.
AB - Traumatic wounds and lacerations are a common reason for patients to present to emergency departments, with retained foreign bodies (FBs) accounting for 7%–15% of cases, particularly those involving the extremities. These retained materials result in a granu-lomatous tissue response known as an FB reaction, a pathologic attempt to isolate the FB from the host. The most common FB materials are glass, metal, and wood, but other compositions can also be found, such as plastic and animal-derived materials. Clinical history, physical examination, and wound exploration are essential in investigation of retained material but are not sufficient to exclude an FB, and additional investigation is required. Imaging evaluation is a useful tool to help depict and locate an FB, assess possible complications, and guide removal. Conventional radiography, the first-line method in this scenario, is a widely available low-cost de-piction method that has good sensitivity for depicting FBs. If the retained material is not depicted at conventional radiography, US can be performed. US is highly sensitive in depicting both radiolucent and radiopaque FBs in superficial locations. For deeper objects, CT may be necessary. MRI is the best imaging modality to delineate lo-cal soft-tissue and osseous complications. Retained FBs can result in early and delayed complications, with infection being the most frequent complication. To avoid preventable morbidities related to FBs, radiologists should be familiar with imaging findings and provide essential information to help the attending physician treat each patient.
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U2 - 10.1148/rg.2020200061
DO - 10.1148/rg.2020200061
M3 - Article
C2 - 33136481
AN - SCOPUS:85094943897
SN - 0271-5333
VL - 40
SP - 1965
EP - 1986
JO - Radiographics
JF - Radiographics
IS - 7
ER -