Редкие неопухолевые заболевания глотки и гортани

A number of inflammatory systemic and non-systemic pharyngel and laryngeal diseases may clinically imitate a tumor. In these cases, computed tomography provides rapid assessment and significant additional information to that obtained from endoscopy. We present 4 clinical observations with certain common features. These are a suspicion of a neoplasm and absence of typical computed tomography symptoms characteristic of tumor lesions. IgG4-related systemic disease, rheumatoid arthritis, amyloidosis, and actinomycosis are rare disorders, however, they should be considered in the differential diagnosis. In this context, the knowledge of the radiation diagnostic characteristics of these rare nosologies will be useful for a practitioner.