case_images: PMC8612870_01
case_images: (
  A
  ) Coronal computed tomography image of the fetal lung interstitial tumor. The image was obtained on postnatal day 6, showing a homogeneous, enhanced, well-demarcated intrapulmonary mass (8.5 cm in diameter) with no apparent systemic vascularization and no infiltration into adjacent structures. (
  B
  ) The hemi-clamshell incision consists of full sternotomy (arrow) combined with an anterolateral thoracotomy (arrowhead), through the fifth intercostal space. The giant tumor was continuous with the right upper lobe and adhered moderately to the surround tissues at the cervicothoracic junction (asterisk). (
  C
  ) Macroscopic findings: Histopathological examination revealed a well-circumscribed (8.5 x 6.5 x 4.0 cm) solid mass within the right upper lobe, with a solid and spongy texture and a homogeneous surface and diffuse microcysts. (
  D
  ) Pathological findings: Histologic image of the fetal lung interstitial tumor showing a well-circumscribed tumorous lesion, with a fibrous border and an abrupt interface with the adjacent normal lung.
case_images: 10-1055-s-0041-1735807-i210582cr-1.jpg
case_images: PMC8612870_02_10-1055-s-0041-1735807-i210582cr-1.jpg
case_images: FI210582cr-1
case_images: Finally, we performed a right upper lobectomy and completely excised the tumor without spillage ( Fig. 1B ). The cut section of the tumor showed a well-circumscribed solid and spongy mass, with a homogeneous surface and diffuse microcysts ( Fig. 1C ). Histopathologic examination revealed a well-circumscribed tumorous lesion with a fibrous border and an abrupt interface with the adjacent normal lung ( Fig. 1D ).
case_images: PMC8612870_02
case_images: (
  A
  ) Coronal computed tomography image of the fetal lung interstitial tumor. The image was obtained on postnatal day 6, showing a homogeneous, enhanced, well-demarcated intrapulmonary mass (8.5 cm in diameter) with no apparent systemic vascularization and no infiltration into adjacent structures. (
  B
  ) The hemi-clamshell incision consists of full sternotomy (arrow) combined with an anterolateral thoracotomy (arrowhead), through the fifth intercostal space. The giant tumor was continuous with the right upper lobe and adhered moderately to the surround tissues at the cervicothoracic junction (asterisk). (
  C
  ) Macroscopic findings: Histopathological examination revealed a well-circumscribed (8.5 x 6.5 x 4.0 cm) solid mass within the right upper lobe, with a solid and spongy texture and a homogeneous surface and diffuse microcysts. (
  D
  ) Pathological findings: Histologic image of the fetal lung interstitial tumor showing a well-circumscribed tumorous lesion, with a fibrous border and an abrupt interface with the adjacent normal lung.
case_images: 10-1055-s-0041-1735807-i210582cr-1.jpg
case_images: PMC8612870_02_10-1055-s-0041-1735807-i210582cr-1.jpg
case_images: FI210582cr-1
case_images: Finally, we performed a right upper lobectomy and completely excised the tumor without spillage ( Fig. 1B ). The cut section of the tumor showed a well-circumscribed solid and spongy mass, with a homogeneous surface and diffuse microcysts ( Fig. 1C ). Histopathologic examination revealed a well-circumscribed tumorous lesion with a fibrous border and an abrupt interface with the adjacent normal lung ( Fig. 1D ).
case_images: Cosmetic outcomes. Healing of the hemi-clamshell incision is shown at 1-year postsurgery (
  A
  : frontal view;
  B
  : lateral view).
case_images: 10-1055-s-0041-1735807-i210582cr-2.jpg
case_images: PMC8612870_02_10-1055-s-0041-1735807-i210582cr-2.jpg
case_images: FI210582cr-2
case_images: Over the subsequent 1-year follow-up, the infant presented no symptoms or observable complaints, with no occurrence of shoulder dysfunction ( Fig. 2 ).