Publications by authors named "Akinori Kageyama"
Background: Clazosentan, a selective endothelin A receptor antagonist, effectively prevents cerebral vasospasm following aneurysmal subarachnoid hemorrhage. Although various adverse effects have been reported, there have been no specific case reports of clazosentan-associated focal brain edema. This report highlights a rare complication associated with clazosentan treatment.
View Article and Find Full Text PDFBackground: High-grade astrocytoma with piloid features (HGAP) is a novel condition introduced in the 2021 World Health Organization classification. Given that it has been recently classified, reports clarifying its clinical features or diagnostic criteria are lacking, especially in cases of atypical presentation. Herein, the authors present a rare case of HGAP with repeated symptomatic hemorrhages.
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- * Imaging revealed a mass in the right cerebellum, and subsequent surgical resection showed the tumor's characteristics included small round cells and signs of macrophage invasion, highlighting its connection to the AML.
- * The case emphasizes the importance of considering intracranial myeloid sarcoma in patients with a history of hematological cancers like AML, despite challenges in differentiating tumor types through imaging.
Article Synopsis
- A 68-year-old man suffered a Jefferson fracture, causing lower cranial nerve palsies, and required surgery for a basilar impression.
- Post-surgery, he experienced complications that required a tracheostomy and speech-language therapy for recovery.
- Although he was eventually decannulated and discharged after several weeks, he continued to struggle with speech and reported a compromised quality of life, underscoring the importance of speech therapy in similar cases.
Background: Adenoid cystic carcinoma (ACC) of the external auditory canal (EAC) is a rare tumor that accounts for approximately 5% of all EAC tumors. ACC is generally known as a slow-growing tumor, but patients often experience recurrence or distant metastasis in the long clinical course. While the major pattern of recurrence is pulmonary metastasis, brain metastasis of ACC of the EAC is rare.
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