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Washington University Experience | NEOPLASMS (GLIAL) | Glioblastoma, adenoid pattern | 3A2 GBM, Adenoid (Case 3) H&E 6

However, a sizable component of the sampled tissue shows two other unusual patterns which exhibit a pale, basophilic myxoid material in which eosinophilic tumor cells appear singly, in cords, and in clusters. In many areas, this pattern is reminiscent of chordoma, chordoid meningioma, or mucinous ('colloid') carcinoma. Within the context of glioblastoma, this pattern suggests a diagnosis of glioblastoma with adenoid features. According to current data, this distinction does not appear to alter prognosis. (H&E)

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