Hat in the neck (Rorschach radiology)
Age: 40 years
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Axial C+ portal venous phase
Normal appearance of pyriform sinuses, aryepiglottic folds and pharynx appearing as hat.
- Mancuso AA, Harnsberger HR, Muraki AS, Stevens MH. Computed tomography of cervical and retropharyngeal lymph nodes: normal anatomy, variants of normal, and applications in staging head and neck cancer. Part II: pathology. Radiology. 1983 Sep;148(3):715-23.
- Lufkin RB, Larsson SG, Hanafee WN. Work in progress: NMR anatomy of the larynx and tongue base. Radiology. 1983 Jul;148(1):173-5.