Fig. 2
From: Parathyroid adenoma causing spontaneous cervical hematoma: two case reports
Case 1. Axial images of a CT of the neck and chest without contrast demonstrate diffuse soft tissue density posterior to the oropharynx, hypopharynx and larynx, displacing these structures anteriorly away from the spine (a, b). A more focal mass-like area of rounded soft tissue density is seen posterior to the left thyroid lobe, suggestive of a focal lesion (arrow) (c). Diffuse abnormal soft tissue density is also seen within the upper mediastinum (d)