Lymphomatoidgastropathy mimicking extranodal NK/T cell lymphoma, nasal type: A case report

Table 1 Characteristics of cases of lymphomatoid gastropathy in the stomach and duodenum

Patient	Ref	Age/sex	Symptom	H. pylori	Location	Endoscopic findings	Follow-up
1	[7]	52/M	UN	-	Stomach	UN	A (145)
2	[7]	58/M	UN	+	Stomach	UN	A (50)
3	[7]	51/M	UN	+	Stomach	UN	A (60)
4	[7]	50/F	UN	+	Stomach	UN	A (46)
5	[7]	55/M	UN	+	Stomach	UN	A (33)
6	[7]	46/M	UN	+	Stomach	UN	A (60)
7	[7]	65/F	UN	+	Stomach	UN	A (56)
8	[7]	56/F	UN	+	Stomach	UN	A (29)
9	[7]	59/F	UN	+	Stomach	UN	A (18)
10	[7]	75/F	UN	+	Stomach	UN	A (12)
11	[8]	31/M	NA	UN	Stomach, small intestine, colon	Superficial erythematous lesion	A/P (84)
12	[8]	27/F	Abd pain	UN	Stomach	Multiple, superficial ulcer	A/P (23)
13	[8]	53/M	NA	UN	Stomach, duodenum	Gastric lesion	A/P (30)
14	[8]	46/F	+	UN	Duodenum, colon	Superficial ulcer	A/P (36)
15	[8]	61/F	+	UN	Duodenum, colon	Multiple, ulcers	A/P (120)
This case		57/F	NA	+	Stomach	Multiple, erythematous dish-like elevated lesions	A (16)

H. pylori: Helicobacter pylori; M: Male; F: Female; A/P: Alive with persistent disease but without progression; A: Alive; UN: Unknown; NA: Not available.

Table 2 Immunophenotypic findings in cases of lymphomatoid gastropathy in the stomach and duodenum

Patient	Ref	cCD3	CD56	TIA/GRZB	CD7	CD5	CD4/CD8	CD20	EBER
1	[7]	+	+	+	+	-	NA	-	-
2	[7]	+	+	+	+	-	-	-	-
3	[7]	+	+	+	+	-	-	-	-
4	[7]	+	+	+	+	-	-	-	-
5	[7]	+	+	+	+	-	-	-	-
6	[7]	+	+	+	+	-	-	-	-
7	[7]	+	+	NA	+	-	-	-	-
8	[7]	+	+	+	+	-	-	-	-
9	[7]	+	+	+	+	-	-	-	-
10	[7]	+	+	+	+	-	-	-	-
11	[8]	+	+	+	+	-	-	-	-
12	[8]	+	+	NA	+	-	-	-	-
13	[8]	+	+	+	+	-	-	-	-
14	[8]	+	+	+	+	-	-	-	-
15	[8]	+	+	+	+	-	-	-	-
This case		+	+	+	+	-	-	-	-

cCD3: Cytoplasmic CD3; TIA: T-cell restricted intracellular antigen; GRZB: Granzyme B; EBER: Epstein-Barr virus-encoded RNA; +: Positive; -: Negative; NA: Not available.