1. Solid or Partly Solid Solitary Pulmonary Nodules
Lee Kyung Soo , MD, Yi Chin A. , MD, Jeong Sun Young , MD, Jeong Yeon Joo , MD, Kim Seonwoo , PhD, Chung Myung Jin , MD, Kim Ha Young , MD, Kim Yoon Kyung , MD, Lee Kwang Hwi , MD 
CHEST 
Volume 131, Issue 5, Pages (May 2007)
DOI: /chest
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Tuberculoma showing benign morphologic and hemodynamic characteristics in a 38-year-old man. Top, A: lung-window transverse CT (2.5-mm thickness) scan obtained at level of great vessels shows 25-mm-sized nodule in right upper lobe. Also note satellite nodules (arrows). Bottom, B: composite images of dynamic CT scans obtained at similar level to top, A, and before (left), and 60 s (middle) and 15 min (right) after contrast injection show no identifiable nodule enhancement. Attenuation values were 43 to 46 HU throughout dynamic study.
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Adenocarcinoma showing malignant characteristics morphologically and hemodynamically in a 64-year-old man. Top, A: lung-window transverse CT (2.5-mm thickness) scan obtained at level of great vessels shows 26-mm-sized nodule with lobulated and spiculated margin in right upper lobe. Middle, B: composite images of dynamic CT scans obtained at similar level to top, A, and before (left), and 60 s (middle) and 15 min (right) after contrast injection, allow nodule dynamics to be calculated. Attenuation before contrast injection was 35 HU, peak attenuation at 60 s after injection was 91 HU (net enhancement 56 HU) and attenuation value at 15 min after injection was 63 HU (WO 28 HU). Bottom, C: graph of time-attenuation curve of this malignant nodule hemodynamics in consideration of both WI and WO phases of dynamic CT.
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Hamartoma showing benign characteristics morphologically but malignant characteristics hemodynamically in a 57-year-old woman. Top, A: mediastinal-(left) and lung-(right) window transverse CT (2.5-mm thickness) scans obtained at level of left basal truncal bronchus shows 19-mm-sized nodule with smooth margin in lingular division of left upper lobe. Also note stippled calcification (arrow) within nodule. Bottom, B: composite images of dynamic CT scans obtained at similar level to top, A, and before (left) and 60 s (middle) and 15 min (right) after contrast injection, allow nodule dynamics to be calculated. Attenuation before contrast injection was 46 HU, peak attenuation at 60 s after injection was 73 HU (net enhancement 27 HU), and attenuation value at 15 min was 48 HU (WO 25 HU).
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Adenocarcinoma showing malignant morphologic characteristics (WI, > 25 HU) but little WO during a hemodynamic study in a 31-year-old woman. Top, A: lung-window transverse CT scan (2.5-mm thickness) obtained at the level of the basal segmental bronchus shows a 17-mm-sized nodule with a lobulated and spiculated margin in the right lower lobe. Bottom, B: composite images of dynamic CT scans obtained at a similar level to that seen in top, A, and before (left), 90 s after (middle), and 15 min after (right) contrast injection allow nodule dynamics to be calculated. Attenuation before contrast injection was 46 HU, peak attenuation at 90 s after injection was 102 HU (net enhancement, 56 HU), and attenuation at 15 min was 101 HU (WO, 1 HU).
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions