Cases
85-year-old man with altered mental status   

Additional images

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HMB-45

IgG4

CK 7

CD 138

CD 1a
What part of a patient’s history would prompt inclusion of this differential in patients?
Cirrhosis
History of biliary tract instrumentation
Pancreatic involvement
Skin involvement

This condition is benign and appears to arise from a healing process.
True
False

What treatment modality is used for this condition?
Watchful waiting
Complete resection
Medical therapy
Radiotherapy