Nasopharyngeal Tuberculosis: Epidemiology, Mechanism of Infection, Clinical Manifestations, and Management

Table 4

Summary of CT/MRI findings [10, 44].

Site	CT/MRI findings
Nasopharynx	Polypoid mass
	Diffuse thickening of the mucosal wall of nasopharynx
	Less extension outside the nasopharynx
	Less invasion into surrounding structures such as prevertebral muscle, nasal cavity, and oropharynx
	Lesion necrosis especially within small nasopharyngeal lesion
	Destruction of striped feature
Lymph node	Homogeneous contrast enhancement (early phase)
	Peripheral rim enhancement with central necrosis (progression phase)
	Fibrosis and calcification may have homogeneous appearance without enhancement (late phase)
	Shortest axial diameter ≥ 5 mm for retropharyngeal LN and ≥10 mm for LN of neck