There is slight male predilection. Usually occurs in the first decade of life with a mean age of 4.5 years 3.
Pancreatoblastoma are a solid tumour, flesh-coloured on gross pathology. They can occur in any part of the pancreas 4.
Metastatic lesions in liver and lymphadenopathy has been reported in 35% of cases 3.
They are usually large, well defined, heterogengous mass with solid and multilocular cystic areas that contain hyperechoic septae. Dilatation of biliary duct is not common as the tumors themselves are soft, though they are frequently large at presentation 3.
- usually relatively well defined and heterogenous due to solid and multilocular cystic components with enhancing septae
- may demonstrate fine calcifications, similar to those seen in neuroblastoma
- most often occurs in the head of the pancreas and tend to be large and solitary, though dilatation of bile duct is uncommon
- hepatic metastases: hypodense
- less frequently, invasion of adjacent structures and biliary tree may be noted
- T1: low-intermediate signal intensity
- T2: heterogenous hyperintense
Treatment and prognosis
Has a better prognosis than adult pancreatic adenocarcinoma.
- cystic neoplasm (cystic pancreatic mass differential diagnosis)
- solid neoplasm
- nonepithelial pancreatic neoplasms
pancreatitis (mnemonic for the causes)
- gallstone pancreatitis
- interstitial oedematous pancreatitis
- necrotising pancreatitis
- haemorrhagic pancreatitis
- revised Atlanta classification of acute pancreatitis
- chronic pancreatitis
- Ascaris-induced pancreatitis
- tropical pancreatitis
- autoimmune pancreatitis
- emphysematous pancreatitis
- hereditary pancreatitis
- pancreatitis associated with cystic fibrosis
- segmental pancreatitis
- acute pancreatitis
- pancreatic atrophy
- pancreatic lipomatosis
- pancreatic trauma
- 1. Roebuck DJ, Yuen MK, Wong YC, Shing MK, Lee CW et al. Imaging features of pancreatoblastoma. Pediatr Radiol. 2001; 31(7): 501-6. [pubmed citation]
- 2. Montemarano H, Lonergan GJ, Bulas DI, Selby DM. Pancreatoblastoma: imaging findings in 10 patients and review of the literature. Radiology. 2000; 214(2): 476-82. Radiology [pubmed citation]
- 3. Chung EM, Travis MD, Conran RM. Pancreatic tumors in children: radiologic-pathologic correlation. Radiographics. ; 26(4): 1211-38. doi:10.1148/rg.264065012 [pubmed citation]
- 4. Wood LD, Hruban RH. Pathology and molecular genetics of pancreatic neoplasms. Cancer J. 2012;18 (6): 492-501. doi:10.1097/PPO.0b013e31827459b6 - Free text at pubmed - Pubmed citation