Solid pseudopapillary neoplasms (SPNs) are rare and relatively indolent tumors of the pancreas. While primary
SPN
s can be surgically resected, there are currently no therapies available for patients with advanced stage disease. Given that these tumors frequently carry
CTNNB
1
hotspot (recurrently mutated loci in a gene) mutations resulting in β‐catenin nuclear accumulation, it has been speculated that the Wnt pathway may be a driver in this disease. Here, we present a comprehensive “multi‐omics” study where the genome, transcriptome, and methylome of
SPN
s were analyzed. We found that
SPN
s are characterized by a low‐complexity genome where somatic mutations in
CTNNB
1
, present in 100% of the cases, are the only actionable genomic lesions. Compared to more common subtypes of pancreatic tumors (adenocarcinomas and pancreatic neuroendocrine tumors),
SPN
s show high expression levels of genes belonging to the Wnt pathway. Their methylome was consistent with an epithelial cell origin and a general upregulation of Wnt pathway genes. Clinical studies to evaluate the exquisite sensitivity of
SPN
s to inhibitors of the Wnt pathway are warranted.