24 July 2026
: Case report 
Adult-Onset Central Nervous System Embryonal Tumor With Neuronal Differentiation: A Diagnostic Challenge
Challenging differential diagnosis, Rare disease
Anh Quynh Pham BCDEF 1,2*, Tuyen Van Pham AC 3, Thong Minh Pham A 1,2DOI: 10.12659/AJCR.953049
Am J Case Rep 2026; 27:e953049
Figure 2 A large heterogeneous mass measuring 31×35×38 mm was centered in the right temporal lobe. The lesion demonstrated mixed signal intensity with extensive surrounding vasogenic edema extending into the adjacent white matter on T2-weighted imaging (A) and fluid-attenuated inversion recovery (FLAIR) (B) sequences. T1-weighted imaging (C) demonstrated mixed signal intensity and mass effect. Areas of restricted diffusion were evident within the solid component, characterized by high signal intensity on diffusion-weighted imaging (D) and low apparent diffusion coefficient signal values (E). After contrast administration, the solid components demonstrated heterogeneous enhancement on T1-weighted imaging (F).