Table 2 Review of the literature concerning IgH clonality in chronic gastritis.

Reference	Entity	Cases with Ig clonality
Isaacson (pers commun)	Chronic gastritis	0–1% (n = 300)
Sukpanichnant6	Chronic gastritis	0% (n = 7)
Savio18	Hp gastritis with reactive lymphoid infiltrate	4% (n = 55)
De Mascarel19	Hp gastritis with duodenal ulcer	1% (n = 320)
Saxena9	Hp gastritis with lymphoid hyperplasia	50% (n = 20)
Hsi20	Chronic gastritis	13% (n = 41)
Sorrentino10	Hp positive gastritis	35% (n = 20)
	Hp negative gastritis	40% (n = 5)
Torlakovic7	Hp gastritis with lymphoid hyperplasia	85% (n = 20)
	Hp gastritis without lymphoid hyperplasia	10% (n = 20)
El‐Zimaity11	Chronic gastritis	38% (n = 39)
Miyamoto21	Follicular gastritis	43% (n = 60)
	Non‐follicular gastritis	17% (n = 60)
Hiyama22	Hp chronic gastritis	6% (n = 116)
	Subgroup with marked atrophy	18% (n = 40)
	Subgroup with marked intestinal metaplasia	20% (n = 20)
Rudolph12	Hp gastritis	20% (n = 15)
Ferraccioli23	Patients with Sjögren syndrome	33% (n = 21)
	Various forms of gastritis	22% (n = 80)
Wuendisch13	Wotherspoon 0	0% (n = 24)
	Wotherspoon 1	4% (n = 24)
	Wotherspoon 2	24% (n = 21)
	Wotherspoon 3	29% (n = 14)
	Wotherspoon 4	35% (n = 23)

Ig, immunoglobulin; Hp, Helicobacter pylori.