- Case report
- Open Access
Bile duct carcinoma recurrence in the papillary region in a long-term survivor of hilar cholangiocarcinoma: a case report
Journal of Medical Case Reports volume 10, Article number: 299 (2016)
Because of its high rate of early recurrence and its poor prognosis, long-term survival after cholangiocarcinoma is rare; therefore, only limited information on patients surviving more than 5 years after surgical therapy is available.
We report the case of a 57-year-old white man who developed a distal bile duct carcinoma 9 years after curative surgical therapy of intrahepatic cholangiocarcinoma. He had undergone a right lobe hemihepatectomy 11 years ago. Nine years later, he was diagnosed with a distal bile duct carcinoma and a duodenopancreatectomy was performed. On histologic examination both carcinomas revealed a tubular and papillary growth pattern with cancer-free resection margins and for both carcinomas there were no signs of lymphatic infiltration or metastatic spreading. Targeted next-generation sequencing showed an identical activating mutation pattern in both carcinomas.
Late recurrence of cholangiocarcinoma, even anatomically distant to the primary, in long-time survivors is possible and could be caused by a distinct tumor biology. A better understanding of the individual tumor biology could help hepatologists as well as hepatobiliary and pancreatic surgeons in their daily treatment of these patients.
According to their anatomical localization they are classified as intrahepatic (iCCA), perihilar (pCCA), and distal (dCCA) carcinomas . In a large study of 564 patients, 8 % of patients had iCCA, 50 % had pCCA, and 42 % had dCCA . Whereas pCCA and dCCA arise from biliary epithelium and peribiliary glands, iCCA derive either from biliary epithelium or from hepatic progenitor cells .
In Western countries, common risk factors for CCA are primary sclerosing cholangitis (PSC), inflammatory bowel disease, alcohol, tobacco smoking, fatty liver disease, diabetes, cholelithiasis, and choledocholithiasis; the common risk factor for iCCAs is viral hepatitis. Furthermore, there are gene variations, which might have the potential to enhance carcinoma development [3, 6, 7].
The only available curative treatment option is surgical resection with negative margins. Depending on the localization, there are also options for neoadjuvant, adjuvant, and palliative chemotherapy, radiation, ablative treatment, and even liver transplant . The rates of 5-year survival in patients with pCCA and dCCA after surgical therapy with negative margins range from 24 to 43 % and 27 % , respectively. Compared to that, the overall 5-year survival rate for all stages and treatment options is less than 5 % [9, 10]. Independent factors influencing long-term survival after surgery are the pathological metastases classification (pM), the ductal margin status, and the size of the primary tumor and its histological grading .
Due to the reported low survival rates there are only a few patients who develop a secondary CCA. If recurrence occurs, it needs to be differentiated between recurrence as metastatic disease, a locoregional relapse, probably due to residual cells after the first operation or a second primary in other parts of the biliary system due to field change or genetic predisposition .
Eleven years ago, a 46-year-old white man presented with painless jaundice. He showed no other symptoms and had no risk factors such as high alcohol consumption or tobacco smoking. With a bodyweight of 73 kg and a height of 175 cm his body mass index (BMI) was 24.49 kg/m2 at the time of presentation. His mother had colorectal cancer otherwise there was no family history.
An endosonography showed an intraluminal polypoid tumor with disintegration of all wall layers at the bifurcation of his bile duct system. The finding was confirmed by endoscopic retrograde cholangiopancreatography (ERCP). Biopsies were taken with the pathologic results coming back inconclusive.
Computed tomography showed an intrahepatic cholestasis and two hypodense lesions in segment VIII of his liver. It showed no signs of metastasis or other unknown pathologies. The analysis of serum tumor marker carcinoembryonic antigen (CEA) was negative and cancer antigen (CA) 19-9 was found to be elevated at 75 kU/l (<37 kU/l).
He was treated with right liver lobectomy with resection of the bile duct directly distal of his pancreatic head, resection of the bile duct of his left liver lobe up to the first intersection, and with a regional lymphadenectomy. The reconstruction was performed by biliodigestive anastomosis with Roux-en-Y hepaticojejunostomy. A bile duct drain was inserted in the dorsal bile duct of his left lobe and closed on day 10 after contrast imaging of the anastomosis. Postoperatively, he recovered well. On the planned day of discharge he developed an aphasia leading to further diagnostics, which showed a transitoric ischemic attack of his left-brain hemisphere. He was transferred to neurology and fully recovered.
A gross examination showed a right hemihepatectomy with a 4×2×2 cm polypoid tumor in his right hepatic bile duct extending into the bile duct junction (mainly intraductal growth type). The liver parenchyma was non-cirrhotic and prominent portal tracts were seen. Resection margins were free of tumor.
Histologic examination revealed an intraductal tumor with tubular and papillary and solid growth pattern. There was a stromal invasion into the ductus hepaticus dexter. In the portal tracts intraductal tumor growth without stromal invasion was found (Fig. 1). According to TNM classification the tumor staging was pT1 pN0 (0/4) M0 R0, G2.
Bile duct cholangiocarcinoma
The same patient presented 2 years ago at the age of 55 with a mass of 1.8×2.4 cm at the papilla of Vater. The mass was detected via magnetic resonance imaging (MRI) during a regular cancer follow-up. In the meantime he had developed an arterial hypertension that was well controlled with ramipril 5 mg once daily. On admission he reported no weight loss, no fever, no sweating, and no signs of icterus or pruritus. His clinical examination was without any pathological finding.
Contrast sonography showed a hypertrophia of his left liver lobe with status post-right hemihepatectomy and no pathological findings. Computed tomography showed a dilatation of the residual common bile duct and normal size pancreatic duct and a contrast enhancement next to the papilla of Vater leading to the suspicion of an intraductal tumor. There were no signs of metastasis (Fig. 2).
On macroscopic examination, an ERCP supported the suspicion of an adenocarcinoma in his distal residual common bile duct. The pathology of the biopsy came back positive for an adenocarcinoma. An analysis of serum tumor markers (CA 19-9, CA 72-4, CA 125, and CEA) showed no elevation.
He was treated with a pylorus-preserving resection of his pancreas head and his duodenum. Postoperatively, he recovered well. Oral nutrition with low amounts of fluids were started on day 1 and escalated up to solid food on day 5. He was discharged on day 14. A 6 French pancreatic drain that was placed intraoperatively was removed on day 30 during an ambulatory visit.
In addition, he received adjuvant chemotherapy with gemcitabine (1000 mg/m2 at day 1, 8, and 15 every 4 weeks) as monotherapy. Chemotherapy was planned for 6 months but discontinued after 3 months due to head aches and weight loss. As of April 2016, there are no signs of tumor recurrence during follow-up.
A pancreatoduodenectomy was performed and on macroscopic exploration there was a 1×1×1 cm tumor at the ampullary region involving his common bile duct. Histologic examination revealed a tubular and papillary growth pattern (Fig. 1). The tumor was similar to the tumor described in his case of pCCA. On immunohistochemistry, the tumor cells expressed cytokeratin (CK) 7 and CA 19-9. The resection margins were free and the tumor was staged as pT2 pN0 (0/14) R0, G2.
Targeted next-generation sequencing (NGS) was performed on formalin-fixed paraffin-embedded (FFPE) samples of both cases as described before . Isolated DNA (<0.5 to 97.6 ng/μl) was amplified with an in-house specified, customized Ion AmpliSeq Primer Pool. The panel comprises amplicons of 12 different genes. Polymerase chain reaction (PCR) products were ligated to adapters and enriched for target regions using the Ion AmpliSeq Panel™ Library kit according to the manufacturer’s instructions (Life Technologies). The generated libraries were equimolar pooled for amplicon sequencing to a concentration of 20 nM of each sample to counterbalance differences in sample quality. Sequencing was performed on an Illumina MiSeq benchtop sequencer (Illumina, San Diego, USA). Results were visualized in the Integrative Genomics Viewer (IGV) and manually analyzed. A 5 % cutoff for variant calls was used and results were only interpreted if the coverage was >100. Both tumors were analyzed as described and the results are shown in Table 1. An identical activating mutation of the PIK3CA gene exon 20 was found in both tumors.
A literature research revealed only a few cases comparable to our case. Nakahira et al.  reported a study with two cases of lower bile duct recurrence after hepatectomy for pCCA. In contrast to our case, both patients showed a recurrence after less than 18 months , indicating that both recurrences derived from residual cells after the first surgery.
There are several case reports showing that intramucosal tumor residuals after resection might lead to recurrences of the tumor especially at the side of anastomosis [15–17]. A case report from Thomas and Heaton  shows that even after 8 years a recurrence of the tumor is possible. In contrast to our case, their patient presented with metastatic disease and no primary was found .
Jang et al.  evaluated the outcome after surgical resection for extrahepatic CCA. Of the treated patients, 29 % survived 5 years without recurrences of the disease. At 5 years, 3, 4 % of the treated patients had a recurrence of the cancer with only one patient presenting with a limited disease acceptable for surgery.
The case presented here shows an example of a patient developing a secondary tumor in the same environment but anatomically distant 9 years after the primary diagnosis of pCCA. The identical mutation pattern and the absence of the most frequent gene alterations  in both tumors indicate that the second tumor is very likely a recurrence of the first. One reason for the long disease-free interval could be the tumor genetics. Neither a KRAS mutation nor a TP53 mutation was detected, which are both linked to a worse outcome .
With the ongoing development of phosphoinositide 3-kinase (PI3Kinase)-specific inhibitors as targeted therapy for tumors with activating mutations in the PIK3CA gene as in our case, further treatment options might be available in the future .
Late and far distant recurrence of CCA in long-time survivors is possible and could be caused by a special tumor biology.
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No further acknowledgements.
The publication of this case report was funded by local grants from our university.
Availability of data and materials
DB collected the patient data and drafted the manuscript. UD carried out the pathological analysis and the targeted next-generation sequencing and helped to draft the manuscript. DHC carried out the radiological analysis. DLS helped with the data analysis and helped draft the manuscript. All authors read and approved the final manuscript.
The authors declare that they have no competing interests.
Consent for publication
Written informed consent was obtained from the patient for publication of this case report and accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
Ethics approval and consent to participate
Institutional review board approval was obtained for the study (Committee’s reference number 16-333).
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Buchner, D., Drebber, U., Chang, D.H. et al. Bile duct carcinoma recurrence in the papillary region in a long-term survivor of hilar cholangiocarcinoma: a case report. J Med Case Reports 10, 299 (2016). https://doi.org/10.1186/s13256-016-1073-6
- Case report
- Surgical therapy
- Targeted next-generation sequencing