Table 2.

Histopathology of Tumors in Patients Who Developed a Radiation Necrosis

Histopathology*	Oligodendroglioma WHO II°	Oligodendroglioma WHO III°	Glioblastoma WHO IV°
Number of patients	6	4	4
Median time of diagnosis in months, with range in brackets.	14 (4–31)	20 (9–37)	4 (3–40)

^*According to the 2007 World Health Organization Classification of Tumors of the Central Nervous System or its later version (2016).^9,10