Table 1.

Demographic, biochemical and ultrasonographic characteristics of the two patients at the time of the diagnosis of pancreatic adenocarcinoma

	Case n° 1	Case n° 2
Age, year	63	66
Gender	Male	Male
Time of observation	2010	2007
Months between diagnosis of pancreatic adenocarcinoma and GIST	0	39
Red Blood cells, cells/ml	4.45E6	4.30E6
Haemoglobin, g/dl	14.7	14.3
White Blood Cells, cells/ml	4.6E3	4.2E3
Platelet count, cells/ml	242E3	69E3
AST, IU/ml	111 (n.v. 10-40)	35 (n.v. <45)
ALT, IU/ml	183 (n.v. 10-60)	49 (n.v. <63)
Total bilirubin, mg/dl	11,2 mg/dl (n.v <1.2)	1.13 mg/dl (n.v <1)
Direct bilirubin, mg/dl	5.8 mg/dl (n.v. <0,4)	0.55 mg/dl (n.v. <0,2)
ALP, IU/ml	197 (n.v. 38-126)	89 (n.v. 30-122)
γ-GT, IU/ml	406 (n.v. <50)	31 (n.v. <50)
INR (normal value)	1 (0.8-1.3)	1.18 (0.8-1.2)
Ca19-9, IU/ml	647 (n.v. <33)	287.3 (n.v. <37)
HCV Ab	Negative	Positive
Pancreas Ultrasound characteristics	Hypoechoic mass of 31 × 39 mm in the head of pancreas	A hypoechoic, irregular-shaped mass of 4 cm in the body of the Pancreas
CEUS characteristics	Arterial phase and enhancement with fine spot composing a wire aspect, persisting homogeneously hypoechoic in the late phases	A rapid enhancement in arterial phase with a persisting homogeneously hypoechogenecity in the late phases

Footnotes: AST: aspartate transaminase; n.v.: normal value; ALT: alanine transaminase; ALP: Alkaline phosphatase; CA 19-9: Carbohydrate Antigen 19.9; CEUS: Contrast Enhanced Ultrasound; γ-GT: gamma glutamyl transferases; GIST: gastrointestinal stromal tumor; HCV Ab: hepatitis C virus antibodies; INR: International Normalized Ratio