What are the differences between the features in patients with jaundice due to CBD stone and head of the pancreas carcinoma?

Stone in CBD Vs Ca of the head of the pancreas: 

Here are the differences between the features in the patients with Jaunce due to stone in the common bile duct (CBD) and carcinoma of the head of the pancreas. 

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Traits	Stone in CBD	Ca of the head of the pancreas
History	Long history	Short history
Pattern of jaundice	Intermittent fluctuating jaundice	Usually progressive jaundice
Pain, fever & jaundice (Charcot's triad)	present	Pain & fever are usually absent
Loss of weight, loss of appetite	Not significant	Significant
Cholangitis	More common	Less common
Lump	Usually absent	Present in a late case
Ascites	Absent	May be present
Gall Bladder	Usually not palpable	Usually palpable
In Ultrasound	An echogenic structure present	No echogenic structure
Radio-opaque structure in X-ray abdomen	Radio opaque structure may be present	Not present
CT scan	Not useful	Confirm mass
Prevalence	More in female	More in male
Age of occurrence	Middle & old age	Old age