IMPORTANT THE MATERIAL OF THIS LECTURE IS DERIVED FROM THIS ARTICLE: RADIOLOGICAL SIGNS IN THORACIC IMAGING: CASE-BASED REVIEW AND SELF-ASSESSMENT MODULE. PUBLISHED IN AJR MARCH 2009

1. RADIOLOGICAL SIGNS IN
THORACIC IMAGING
PREPARED BY
PROFESSOR
ABDULSALAM Y TAHA
https://sulaimaniu.academia.edu/AbdulsalamTaha

2. IMPORTANT
THE MATERIAL OF THIS LECTURE IS
DERIVED FROM THE ABOVE ARTICLE

3. Introduction

4. —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
Luftsichel sign
(lu:ftsikil)
(air cresent)
©2009 by American Roentgen Ray Society

5. —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

8. —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

9. —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

10. —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

11. —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

12. —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

18. —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

19. —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

20. —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

24. —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

26. —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

27. —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

30. 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.

31. Hilum overly sign
The 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.

33. —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

34. —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

35. —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

39. —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

40. —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