NF1 and neck and thoracic mass, status post subtotal resection in June. There is a trans-spatial heterogeneously-enhancing plexiform mass centered in the left retropharynx that spans from the level of the nasopharynx into the upper mediastinum, with extension and left carotid space with associated encasement of the great vessels, and into the left visceral space with associated distortion of the thyroid gland. The mass measures approximately 4.0 AP x 4.5 RL x 13.5 SI cm, previously 3.3 AP x 3.3 RL x 12.0 SI cm. There is narrowing of the oropharyngeal airway. There appear to be secretions within the tracheal lumen. The cervical lymph nodes appear to be unchanged. There are T2 hyperintense lesions in the cerebellum.
1. Apparent increase in size of the plexiform neurofibroma centered in the left retropharynx at the level of the nasopharynx with extension into the left visceral space, upper mediastinum, and left carotid space with associated encasement of the great vessels since 2013. 2. Partially-imaged intracranial stigmata of neurofibromatosis type 1.