A rare case of a pineoblastoma with a rhabdomyoblastic component

We report a case of a 5‐year‐old boy with PB with a rhabdomyoblastic component. He presented at a local clinic with vomiting and was transferred to our hospital following discovery of a pineal mass. An endoscopic biopsy was performed and was diagnosed as a PB with a rhabdomyoblastic component. Histopathology of PAT is characterized by both neuroectodermal and ectomesenchymal differentiation, and only a few confirmed cases have been reported. Although the histopathological features of the reported case resembled that of PAT, the ectomesenchymal component in the presented case was only a rhabdomyoblastic one. Therefore, we have diagnosed this case as PB with a rhabdomyoblastic component. As PAT is a rare pineal tumor, clinical, histopathological and genetic evaluation of additional cases is needed to define the characteristics of PAT as one of the pineal gland tumors.

Source: Neuropathology - September 30, 2016 Category: Neurology Authors: Taku Homma, Akihiro Hemmi, Takashi Ohta, Yoshiaki Kusumi, Atsuo Yoshino, Hiroyuki Hao Tags: Case Report Source Type: research