Stefano La Rosa

The indolent nature of gastroblastoma. Report of an illustrative case with 28 years of follow-up showing previously unreported immunohistochemical and molecular features

We report the clinical, morphological, ultrastructural, and molecular features of a gastroblastoma diagnosed in a 27-year-old male describing some unreported findings that can help to better understand this very rare tumor. The clinical course lasting 28 years confirms the indole...

Comprehensive Clinicopathologic, Immunohistochemical, and Genomic Profiling of Sporadic Ampullary Somatostatin-producing D-cell Neuroendocrine Tumors Identifies Recurrent HRAS Hotspot Mutations

Abstract Ampullary somatostatin-producing D-cell neuroendocrine tumors are rare neoplasms that may be associated with type 1 neurofibromatosis. The molecular features of sporadic ampullary somatostatin-producing D-cell neuroendocrine tumors (SAMSOM-NETs) remain poorly characteriz...