Table 3.

Imaging characteristics of the pseudotumors and final diagnosis

Pseudotumor/patient	Maximum diameter (mm)	Localization	Vascular involvement	Presence of lymphadenopathy	EUS FNA/adequate sample	Surgery	Final diagnosis
1	35	Body	Yes	No	Normal/yes	No	CP
2	30	Head	No	Yes	CP/yes	No	CP
3	20	Head	No	No	Normal/yes	No	CP
4	35	Head	Yes	Yes	Inflammation/yes	Yes	CP
5	35	Neck	No	No	CP/yes	No	CP
6	28	Body	No	No	CP/yes	No	CP
7	30	Neck	No	Yes	Non-neoplastic cells/yes	Yes	Myofibroblastic tumor
8	40	Head	Yes	Yes	Normal/yes	Yes	Pancreatic cancer
9	40	Head	Yes	Yes	CP/yes	Yes	Pancreatic cancer

CP: Chronic pancreatitis; EUS: Endoscopic ultrasound; FNA: Fine needle aspiration.