Rosai-Dorfman disease with lung involvement in a 10-year-old patient: A case report

Figure 8 Neck magnetic resonance imaging after 9 mo. A and D: Magnetic resonance imaging (MRI) showed multiple round-like soft tissue masses of different sizes in the left parapharyngeal space, carotid sheath area, submandibular region, cervical root, supraclavicular fossa, and supraclavicular region. Most of the lesions were fused into masses (the largest was 6.9 cm × 9.0 cm × 12 cm), with low signal intensity on T1-weighted images; B and E: The manifestation of the tumor on fat-suppressed T2 weighted imaging; C and F: The soft tissue mass showed high signal intensity on T2 weighted imaging. A-F: The boundary of the tumor was not clear, and the scope of the tumor was significantly larger than that of the cervical MRI 9 mo ago.