TY - JOUR
T1 - Concurrent presentation of an intraductal tubulopapillary neoplasm and intraductal papillary mucinous neoplasm in the branch duct of the pancreas, with a superior mesenteric artery aneurysm
T2 - A case report
AU - Inomata, Kenta
AU - Kitago, Minoru
AU - Obara, Hideaki
AU - Fujii-Nishimura, Yoko
AU - Shinoda, Masahiro
AU - Yagi, Hiroshi
AU - Abe, Yuta
AU - Hibi, Taizo
AU - Matsubara, Kentaro
AU - Oshima, Go
AU - Sekimoto, Yasuhito
AU - Inoue, Masazumi
AU - Itano, Osamu
AU - Sakamoto, Michiie
AU - Kitagawa, Yuko
N1 - Publisher Copyright:
© 2018 The Author(s).
PY - 2018/4/24
Y1 - 2018/4/24
N2 - Background: Since the concept of intraductal tubulopapillary neoplasm (ITPN) was introduced in the current World Health Organization classification of tumors, the number of reports of ITPN occurrence has increased gradually. However, ITPN is usually located in the main pancreatic duct, with few reports of a branch duct ITPN. As a result, imaging protocols for the diagnosis of a branch duct ITPN have not been established. Case presentation: We report a case of a concurrent presentation of a branch duct ITPN and intraductal papillary mucinous neoplasm (IPMN) in the head of the pancreas, with a superior mesenteric artery (SMA) aneurysm. Initially, the cystic masses in the pancreatic head were diagnosed as branch duct IPMNs, with treatment consisting of a pylorus-preserving pancreaticoduodenectomy, in combination with an aneurysmectomy performed for treatment of the SMA aneurysm. Pathological examination confirmed these cysts were a combination of branch-type ITPN and IPMN. The patient recovered from the treatment without complication, with no evidence of recurrence over a period of 34 months post-surgery. Conclusion: This case report of a synchronous presentation of an ITPN and IPMN indicates the difficulty in differentiating these two types of neoplasms in the branch duct of the pancreatic head.
AB - Background: Since the concept of intraductal tubulopapillary neoplasm (ITPN) was introduced in the current World Health Organization classification of tumors, the number of reports of ITPN occurrence has increased gradually. However, ITPN is usually located in the main pancreatic duct, with few reports of a branch duct ITPN. As a result, imaging protocols for the diagnosis of a branch duct ITPN have not been established. Case presentation: We report a case of a concurrent presentation of a branch duct ITPN and intraductal papillary mucinous neoplasm (IPMN) in the head of the pancreas, with a superior mesenteric artery (SMA) aneurysm. Initially, the cystic masses in the pancreatic head were diagnosed as branch duct IPMNs, with treatment consisting of a pylorus-preserving pancreaticoduodenectomy, in combination with an aneurysmectomy performed for treatment of the SMA aneurysm. Pathological examination confirmed these cysts were a combination of branch-type ITPN and IPMN. The patient recovered from the treatment without complication, with no evidence of recurrence over a period of 34 months post-surgery. Conclusion: This case report of a synchronous presentation of an ITPN and IPMN indicates the difficulty in differentiating these two types of neoplasms in the branch duct of the pancreatic head.
KW - Pancreatic cyst
KW - Pancreatic neoplasm
KW - Pancreaticoduodenectomy
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U2 - 10.1186/s12957-018-1391-9
DO - 10.1186/s12957-018-1391-9
M3 - Article
C2 - 29690869
AN - SCOPUS:85045917189
SN - 1477-7819
VL - 16
JO - World Journal of Surgical Oncology
JF - World Journal of Surgical Oncology
IS - 1
M1 - 83
ER -