TY - JOUR
T1 - Asymptomatic partial regression of cerebral arteriovenous malformation without treatment
T2 - Case report and literature review
AU - Ishida, Tomohisa
AU - Inoue, Takashi
AU - Inoue, Tomoo
AU - Saito, Atsushi
AU - Ezura, Masayuki
AU - Suzuki, Shinnsuke
AU - Uenohara, Hiroshi
AU - Tominaga, Teiji
N1 - Publisher Copyright:
© 2020 The Author(s)
PY - 2021/3
Y1 - 2021/3
N2 - Background: Spontaneous regression of arteriovenous malformations (AVMs) is usually associated with bleeding, but sometimes asymptomatic regression occurs. Case description: We describe a case of spontaneous regression of AVM without evidence of hemorrhagic event. A 60-year-old otherwise healthy woman came to our hospital with complaints of headache. Digital subtraction angiography (DSA) showed an AVM with a 1.4 × 1.0 × 0.9 cm nidus in the right temporal lobe. The patient decided on observation without treatment rather than stereotactic radiation therapy or direct surgery. Seven years later, DSA revealed partial regression of the AVM. Venous ectasia and the nidus had decreased in size, and the nidus was obscure, especially around the feeding artery. No obvious features of hemorrhage were detected. Conclusions: Spontaneous regression of AVM is the result of multiple interacting factors. Structural changes to the AVM and histopathological changes may be important.
AB - Background: Spontaneous regression of arteriovenous malformations (AVMs) is usually associated with bleeding, but sometimes asymptomatic regression occurs. Case description: We describe a case of spontaneous regression of AVM without evidence of hemorrhagic event. A 60-year-old otherwise healthy woman came to our hospital with complaints of headache. Digital subtraction angiography (DSA) showed an AVM with a 1.4 × 1.0 × 0.9 cm nidus in the right temporal lobe. The patient decided on observation without treatment rather than stereotactic radiation therapy or direct surgery. Seven years later, DSA revealed partial regression of the AVM. Venous ectasia and the nidus had decreased in size, and the nidus was obscure, especially around the feeding artery. No obvious features of hemorrhage were detected. Conclusions: Spontaneous regression of AVM is the result of multiple interacting factors. Structural changes to the AVM and histopathological changes may be important.
KW - Asymptomatic
KW - Cerebral arteriovenous malformation
KW - Obliteration
KW - Regression
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U2 - 10.1016/j.inat.2020.100929
DO - 10.1016/j.inat.2020.100929
M3 - Review article
AN - SCOPUS:85091795453
VL - 23
JO - Interdisciplinary Neurosurgery: Advanced Techniques and Case Management
JF - Interdisciplinary Neurosurgery: Advanced Techniques and Case Management
SN - 2214-7519
M1 - 100929
ER -