Table 8:

Imaging features of benign BT in immunocompetent patients compared with those of invasive fungal rhinosinusitis in immunocompromised patients

	Incidental BT in Immunocompetent Patients	Patients with IFRS
Enhancement pattern	Nonenhancing centrally with smooth, thin peripheral enhancement, likely normal mucosal enhancement	Infiltrative nonenhancement extending into adjacent structures, without smooth, thin enhancing margin
T2 characteristic	Intermediate to hyperintense, but not hypointense	Variable: hypointense, intermediate, or hyperintense
Internal feature	Faint septa or confluent dots	Confluent nonenhancement
Most common location for BT	Posterior and midportions of inferior turbinate	Middle turbinate
NE confined to turbinate?	Yes	No
Temporal feature	Increased enhancement with time	Persistent nonenhancement