Cerebral Arteritis Caused by a Streptococcus Anginosus Group Infection Leading to Sequential Cerebral Infarction and Intracerebral Hemorrhage
Abstract
A 55-year-old man was admitted with a right frontal headache and low-grade fever. The initial neuroimaging and cerebrospinal fluid findings were normal, and giant cell arteritis was suspected. After administering prednisolone therapy, he developed a cerebral infarction and multiple cerebral arterial stenoses. Blood cultures were positive for the Streptococcus anginosus group, and the cerebrospinal fluid findings were consistent with bacterial meningitis. Echocardiography revealed no valvular vegetations. Although antibiotic therapy improved the patient's symptoms, intracerebral hemorrhage developed thereafter. The patient was discharged with residual neurological deficits. This case suggests that Streptococcus anginosus group infections can cause cerebral arteritis.
Related
- Minimally Invasive Hematoma Evacuation for Acute Spontaneous Supratentorial Intracerebral Hemorrhage: A Systematic Review and Meta‐Analysis With Trial Sequential Analysis
- Cross-trait genetic architecture of intracerebral hemorrhage highlights convergent vascular, hematologic and lipid pathways
- PINK1 agonist MTK458 attenuates cerebral edema by protecting blood-brain barrier integrity in intracerebral hemorrhage mice
- An automated, explainable, NCCT-based clinical decision-support system for spontaneous intracerebral hemorrhage.
- Development and Validation of a Human Cadaveric Model for Lobar Intracerebral Hemorrhage
BibTeX
@article{yuki2026cerebral,
title = {{Cerebral Arteritis Caused by a Streptococcus Anginosus Group Infection Leading to Sequential Cerebral Infarction and Intracerebral Hemorrhage}},
author = {Natsuko Yuki and Akira Yoshioka and Daisuke Kanbe},
journal = {Internal Medicine},
year = {2026},
month = aug,
doi = {10.2169/internalmedicine.7668-26},
url = {https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7668-26/_article},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Cerebral Arteritis Caused by a Streptococcus Anginosus Group Infection Leading to Sequential Cerebral Infarction and Intracerebral Hemorrhage
AU - Natsuko Yuki
AU - Akira Yoshioka
AU - Daisuke Kanbe
PY - 2026
DA - 2026/08/25
JO - Internal Medicine
DO - 10.2169/internalmedicine.7668-26
UR - https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7668-26/_article
AB - A 55-year-old man was admitted with a right frontal headache and low-grade fever. The initial neuroimaging and cerebrospinal fluid findings were normal, and giant cell arteritis was suspected. After administering prednisolone therapy, he developed a cerebral infarction and multiple cerebral arterial stenoses. Blood cultures were positive for the Streptococcus anginosus group, and the cerebrospinal fluid findings were consistent with bacterial meningitis. Echocardiography revealed no valvular vegetations. Although antibiotic therapy improved the patient's symptoms, intracerebral hemorrhage developed thereafter. The patient was discharged with residual neurological deficits. This case suggests that Streptococcus anginosus group infections can cause cerebral arteritis.
SN - 1349-7235
SN - 0918-2918
ER -