Hybrid neurofibroma/schwannoma tumors (HNS) represent a still underrecognized, yet clinically and diagnostically significant entity within the spectrum of schwannomatosis (SWN). While classical schwannomas have been well known for decades, HNS have only recently been described as a distinct histological pattern, composed of intermixed features typical of both schwannomas and neurofibromas. Differentiating HNS from pure neurofi...

Beurlenia araripensis was described in 1991 based on a single specimen recovered from the Crato Formation, Araripe Basin, with the type specimen deposited in the Museu Nacional, Rio de Janeiro in 2001. Following the 2018 fire at the museum the holotype was presumed lost, but it was recovered during rescue operations between 2018 and 2022, and fortuitously recognized in 2024. The original description, based on an almost complet...