CLINICAL CONFERENCE; presenting symptom: severe headaches in the frontal region.
D001650:Bile Duct Neoplasms; D001652:Bile Ducts; D003937:Diagnosis, Differential; D005145:Face; D005625:Frontal Lobe; D006257:Head; D006261:Headache / Q000175:diagnosis*; D006801:Humans
BILE DUCTS/neoplasms; HEADACHE/differential diagnosis