Brief overview of congenital gastric ectopic pylorus: A rare gastric abnormality

Table 1 Clinical characteristics of the 29 patients with Congenital gastric ectopic pylorus, mean ± SD/n (%)

Features	Variables
Total number	29
Age (range), years	59.6 ± 11.6 (37-73)
Gender
Male	26 (89.7)
Female	3 (10.3)
Clinical manifestation
Abdominal pain	19 (65.5)
Abdominal distension	12 (41.4)
Acid regurgitation	9 (31.0)
Belching	7 (24.1)
Vomiting	9 (31.0)
Bleeding	9 (31.0)
Opening position
Lesser curvature of gastric body	17 (58.6)
Gastric angle	10 (34.5)
Gastric antrum	1 (3.4)
Posterior wall of gastric body	1 (3.4)
Complications
Gastric erosion or ulcer	21 (72.4)
Atrophic gastritis	11 (37.9)
Gastric cancer	2 (6.9)
Treatment
Medication	29 (100)

Percentages in the “Clinical manifestation” and “Complications” sections may sum to more than 100% because patients can present with multiple symptoms and complications simultaneously. This indicates that the symptom and complication categories are non-mutually-exclusive, meaning patients may be counted in multiple categories, leading to the cumulative percentages exceeding 100%.