Inami Kasumi, Tsutsumi Satoshi, Hashizume Akane, Yamataka Motoki, Sugiyama Natsuki, Ueno Hideaki, Ishii Hisato
Department of Neurological Surgery, Juntendo University Urayasu Hospital, Urayasu, Chiba, Japan.
Department of Pathology, Juntendo University Urayasu Hospital, Urayasu, Chiba, Japan.
Radiol Case Rep. 2024 Feb 13;19(5):1661-1665. doi: 10.1016/j.radcr.2024.01.058. eCollection 2024 May.
A 53-year-old woman presented with a 2-week history of headache and vertigo. Computed tomography revealed a hyperdense tumor, measuring 30 × 31 × 36 mm in diameter, in the anteromedial parts of the cerebellar hemispheres. Cerebral magnetic resonance imaging 10 days later revealed an apparent extra-axial tumor with broad attachment to the medial tentorium cerebelli and rapid growth to a diameter of 40 × 41 × 46 mm. Cerebral angiography revealed no obvious feeding vessels or tumor stains. The patient underwent biopsy through the left occipital transtentorial route. The histological appearance was consistent with diffuse large B-cell lymphoma. Intracranial lymphoma may present as a dural tumor that mimics a meningioma. Rapid tumor growth incongruous with benign meningiomas should be assumed to be possible lymphoma, and prompt biopsy should be performed.
一名53岁女性，有2周的头痛和眩晕病史。计算机断层扫描显示在小脑半球前内侧部分有一个直径为30×31×36mm的高密度肿瘤。10天后的脑磁共振成像显示一个明显的轴外肿瘤，与小脑幕内侧广泛相连，并迅速生长至直径40×41×46mm。脑血管造影未发现明显的供血血管或肿瘤染色。患者通过左枕部经小脑幕入路进行了活检。组织学表现符合弥漫性大B细胞淋巴瘤。颅内淋巴瘤可能表现为类似脑膜瘤的硬脑膜肿瘤。与良性脑膜瘤不符的肿瘤快速生长应考虑可能为淋巴瘤，并应及时进行活检。
