Lymphoepithelial cysts and cystic lymphangiomas: Under-recognized benign cystic lesions of the pancreas

Table 1 Clinicopathologic characteristics of 12 patients n (%)

Factors	LECP (n = 8)	Lymphangioma (n = 4)
Median age, yr (range)	60.5 (24-78)	37.5 (19-69)
Females	2 (25)	4 (100)
Symptomatic	4 (50)	2 (50)
Abdominal pain	2 (25)	2 (50)
Other (nausea, fever)	2 (25)	0
Operation	7 (87.5)	4 (100)
Distal pancreatectomy	4 (50)	3 (75)
Pancreaticoduodenectomy	2 (25)	1 (25)
Enucleation	1 (12.5)	0
Pathology
Median size, cm (range)	2 (2-7.6)	10.5 (2.5-20)

LECP: Lymphoepithelial cyst of the pancreas.

Table 2 Diagnostic studies n (%)

Factors	LECP(n = 8)	Lymphangioma(n = 4)
Median CA 19-9, U/mL (range)	35 (3-79)	10 (9-36)
CT characteristics
Mean size, cm (range)	2.3 (1.5-2.9)	9.2 (2.3-16.5)
Loculations	1 (25)	0
Microcystic	1 (25)	0
Central scar	0	0
Septations	3 (75)	2 (50)
Calcifications	0	0
Mural nodules	0	1 (25)
Thin cyst wall	4 (100)	4 (100)
Pancreatic Duct Dilatation	0	0
Other (vascular invasion, lymphadenopathy)	0	0
FNA	(n = 6)	(n = 1)
Sufficient	4 (67)	1 (100)
Diagnostic	3 (50)	0

LECP: Lymphoepithelial cyst of the pancreas; FNA: Fine needle aspiration; CT: Computed tomography.