from Section 1 - Head and neck
Published online by Cambridge University Press: 05 June 2014
Imaging description
A 10-year-old boy presented with pain and soft tissue swelling of the left cheek. A CT scan demonstrated an extensive soft tissue mass centered in the left maxilla with associated cortical erosion of the left alveolar ridge and left maxillary sinus walls. Contralateral involvement of the right alveolar ridge and anterior maxillary sinus wall was also noted. Several teeth appeared to be “floating” within the maxilla. There was absence of adjacent soft tissue fat stranding (Fig. 9.1a–c).
A five-month-old infant presented with bi-parietal scalp swelling. CT of the head showed bi-parietal calvarial lytic lesions with associated soft tissue masses and a characteristic “beveled edge” appearance with greater destruction of the outer table of the calvarium relative to the inner table (Fig. 9.2a, b). On MRI, mixed T1 and T2 intensities and heterogeneous enhancement of the soft tissue mass was seen (Fig. 9.2c–e).
Langerhans cell histiocytosis (LCH) was confirmed pathologically in both cases.
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