Immagini della linfoma extranodale della testa e collo e le sue imitazioni.

Extra-nodal head and neck lymphoma encompasses diverse histological subtypes and imaging appearances. Thus, it can be challenging to discriminate lymphoma from other lesions that may have similar radiological features. Herein, various lymphoma mimics will be reviewed in different anatomical locations in the head and neck including Waldeyer's ring, sinonasal tract, orbits, and salivary and thyroid glands, with reference to their clinical presentation, predisposing factors, and laboratory markers. These mimics encompass non-neoplastic (idiopathic orbital pseudotumor, granulomatosis with polyangiitis, IgG4-related disease and Rosai-Dorfman disease) and neoplastic (squamous cell carcinoma, NUT c