radiological signs in thoracic imaging ( ajr article)

RADIOLOGICAL SIGNS IN THORACIC IMAGING

PREPARED BYPROFESSOR

ABDULSALAM Y TAHA

https://sulaimaniu.academia.edu/AbdulsalamTaha

IMPORTANTTHE MATERIAL OF THIS LECTURE IS

DERIVED FROM THE ABOVE ARTICLE

Introduction

—52-year-old woman with several-week history of nonproductive cough, mild dyspnea, chest tightness, and wheezing.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

Luftsichel sign (lu:ftsikil)

(air cresent)

—52-year-old woman with several-week history of nonproductive cough, mild dyspnea, chest tightness, and wheezing.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—68-year-old asymptomatic nonsmoking woman who underwent preoperative screening chest radiography in preparation for total knee arthroplasty.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—68-year-old asymptomatic nonsmoking woman who underwent preoperative screening chest radiography in preparation for total knee arthroplasty.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—68-year-old asymptomatic nonsmoking woman who underwent preoperative screening chest radiography in preparation for total knee arthroplasty.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—68-year-old asymptomatic nonsmoking woman who underwent preoperative screening chest radiography in preparation for total knee arthroplasty.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—68-year-old asymptomatic nonsmoking woman who underwent preoperative screening chest radiography in preparation for total knee arthroplasty.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—33-year-old man with 3- to 4-day history of dyspnea and nonproductive cough.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—33-year-old man with 3- to 4-day history of dyspnea and nonproductive cough.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—33-year-old man with 3- to 4-day history of dyspnea and nonproductive cough.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—35-year-old woman with fatigue, chest pain, and weight loss over past several months.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—35-year-old woman with fatigue, chest pain, and weight loss over past several months.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—35-year-old woman with fatigue, chest pain, and weight loss over past several months.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

Hilum overly sign

• The hilum overly sign refers to an appearance of frontal chest radiographs of patients with a mass located at the level of the hilum, but either anterior or posterior to the hilum. When a mass arises from the hilum, the pulmonary vessels are in contact with the mass and as such their silhouette is obliterated. The ability to see the edges of the vessels through the mass implies that the mass is not located at the hilum, and is therefore either anterior or posterior to it.

Hilum overly signThe hilar overlay sign in a 57-year-old man with liposarcoma of the anterior mediastinum. (A) A posteroanterior chest radiograph shows a large mediastinal mass mimicking an enlarged border of the heart and the ascending aorta. (B) A magnified view of the right hilum shows a normal right pulmonary artery (arrow) that is >1 cm medial to the lateral border of the mass. (C) A contrast-enhanced chest CT scan shows a fatty tumor, which is consistent with liposarcoma. The right pulmonary artery is posterior and medial to the lateral border of the mass.

—47-year-old man with chronic renal failure and dyspnea.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—47-year-old man with chronic renal failure and dyspnea.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—47-year-old man with chronic renal failure and dyspnea.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—62-year-old woman with long-standing history of chronic atrial fibrillation.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society

—62-year-old woman with long-standing history of chronic atrial fibrillation.

Parker M S et al. AJR 2009;192:S34-S48

©2009 by American Roentgen Ray Society