The CT of the chest with contrast showed subcutaneous emphysema (green star), pneumomediastinum (yellow arrow), and pneumopericardium (purple asterix) without an identifiable tracheal tear. Extensive air was visualized as hypodense areas within the chest wall within the soft tissue. The image also detailed a hypodense area surrounding the heart consistent with pneumopericardium. No disruption of the trachea was present. Additionally, the CT of the chest also showed bilateral ground glass airspace opacities (red stars) with subpleural sparing that is consistent with EVALI findings.2,5 These specific findings have been seen in many of the EVALI cases.5 This image is interesting because there is extensive pneumomediastinum with no clearly identifiable cause. The imaging shows no esophageal or tracheal or lung injury, so it is important to note relevant information collected during interview regarding patient’s recent history of vaping THC, especially when establishing a differential diagnosis.
Examination of the right ankle demonstrated a large deformity of the superior talus with bruising and blanching of the overlying skin in the area of the Achilles tendon (see images 2,3). The remaining bones of the foot were not tender to palpation and the foot was neurovascularly intact throughout with only mild numbness in the area of the tented skin. Completing the trauma exam, the patient had no signs of head injury and no midline spinal tenderness to palpation. Inspection of the remaining long bones and joints showed no other injuries. There were mild skin scrapes on the right flank from the fall. X-rays of the right foot and ankle showed a longitudinal fracture of the calcaneal tuberosity from the articular surface to the posterior surface (see red outline) with extension into the subtalar joint (blue lines) and roughly 1.8 cm displacement between the fracture segments (yellow double arrow). These findings represented a tongue-type calcaneal bone fracture.
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