Table 2.

Major salivary gland ultrasonography points and grading method of the submandibular and parotid glands in primary Sjögren Syndrome

	Parotid Glands	Submandibular Glands
	Left Right	Left Right
Echogenicity
Normal (0); abnormal (fibrosis) 1
Homogeneity
Normal (0); abnormal (1)
Hyperechoic bands
None (0); <50% of the parenchyma (1); >50% (2)
Number of hypoechoic/anechoic area (mm)*
Size of the largest hypoechoic/anechoic areas (mm)**
Location of the hypoechoic/anechoic areas in the gland
None (0); isolated (<25% of the surface area) (1); localized (25-50%) (2); scattered (>50%) (3); diffuse (4)
Number of abnormal lymph nodes in the gland***
Presence of normal lymph nodes at the upper and / or lower poles of the parotid glands: no (0); yes (1)
Calcifications
No (0); yes (1)
Posterior border visible
No (0); yes (1)
Diagnosis advice of pSS based on the seven items
Ruled out (0); indeterminate (1); ruled in (2)

Quantitative variables were categorized as follows: ^*number of hypoechoic/anechoic areas: none (0), 1-4 (1), >5 (2); ^**size of the largest area: none (0), <2 (1), >2 (2), ^***abnormal lymph nodes: no (0), yes (1).

Source: Adapted from Jousse-JoulinS et al RMD Open 2017;3:e000364. doi:10.1136/ rmdopen-2016-000364.

pSS, primary Sjögren’s syndrome.