Fig. 1.Drawing shows location of costal cartilage fractures. Two
main sites are chondrosternal and chondrocostal junctions of first rib and
middle part of cartilages of second to eighth ribs.
Fig. 2A.26-year-old man with multiple rib fractures after motor
vehicle collision. CT scan reveals interruption (arrows) with break
in continuity of third costal cartilage. Patient also had multiple other bony
rib and costal cartilage fractures (not shown).
Fig. 3A.28-year-old man with painful left parasternal lump for 6
months. Patient reported no traumatic history but was drug addict and engaged
in contact sports. Bone scan shows discrete area of increased uptake in left
parasternal area (arrow) at level of lump, and several other intense
foci in extremities of subjacent ribs corresponding to fractures.
Fig. 3B.28-year-old man with painful left parasternal lump for 6
months. Patient reported no traumatic history but was drug addict and engaged
in contact sports. Transverse CT (B) and sagittal oblique multiplanar
reformatted CT (C) scans perpendicular to costal cartilage of left
sixth rib show heterogeneous focal swelling, with peripheral
calcifications.
Fig. 3C.28-year-old man with painful left parasternal lump for 6
months. Patient reported no traumatic history but was drug addict and engaged
in contact sports. Transverse CT (B) and sagittal oblique multiplanar
reformatted CT (C) scans perpendicular to costal cartilage of left
sixth rib show heterogeneous focal swelling, with peripheral
calcifications.
Fig. 3D.28-year-old man with painful left parasternal lump for 6
months. Patient reported no traumatic history but was drug addict and engaged
in contact sports. Curved frontal multiplanar reformatted (D) and
maximum-intensity-projection (E) images from sets of CT slices of
anterior chest wall show that focal hypodensity and peripheral calcifications
correspond to transverse area perpendicular to costal cartilage.
Fig. 3E.28-year-old man with painful left parasternal lump for 6
months. Patient reported no traumatic history but was drug addict and engaged
in contact sports. Curved frontal multiplanar reformatted (D) and
maximum-intensity-projection (E) images from sets of CT slices of
anterior chest wall show that focal hypodensity and peripheral calcifications
correspond to transverse area perpendicular to costal cartilage.
Fig. 4A.46-year-old man with history of overlooked thoracic trauma
that occurred 3 months earlier during stay in intensive care unit. CT scans
show swelling of soft tissue surrounding irregular costal cartilage with focal
interruptions (thick arrow, A) and typical fracture
angulations (thick arrow, B). Note peripheral calcifications
(thin arrows).
Fig. 4B.46-year-old man with history of overlooked thoracic trauma
that occurred 3 months earlier during stay in intensive care unit. CT scans
show swelling of soft tissue surrounding irregular costal cartilage with focal
interruptions (thick arrow, A) and typical fracture
angulations (thick arrow, B). Note peripheral calcifications
(thin arrows).
Fig. 5A.19-year-old man who experienced sudden onset of left
parasternal pain during gymnastic training on parallel bars. S = sternum. CT
scan shows thin band of gas density (thick arrow) within gap between
cartilage of first left rib (thin arrow) and sternum.
Fig. 2B.26-year-old man with multiple rib fractures after motor
vehicle collision. Sonogram of third rib shows interruption and displacement
of hyperechogenic line, corresponding to ventral aspect of costal cartilage
(arrows).
Fig. 5B.19-year-old man who experienced sudden onset of left
parasternal pain during gymnastic training on parallel bars. S = sternum.
Sonogram (dual image) of same region as A shows small hyperechogenic
area (thick arrow) corresponding to gas accumulation between
hypoechogenic cartilage (thin arrow) and hyperechogenic line
delineating anterior aspect of sternum.