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Article: Aqueductal developmental venous anomaly causing obstructive hydrocephalus: A case report and review of the literature.

Hayashi, Takuya / Uchino, Akira / Tokushige, Kazuo / Baba, Yasutaka

2024 Volume 19, Issue 5, Page(s) 2024–2030

Abstract: A developmental venous anomaly (DVA) is a venous drainage of the associated parenchyma that is normally asymptomatic. However, a DVA located adjacent to the aqueduct can cause obstructive hydrocephalus by blocking the flow of cerebrospinal fluid. We ... ...

Abstract	A developmental venous anomaly (DVA) is a venous drainage of the associated parenchyma that is normally asymptomatic. However, a DVA located adjacent to the aqueduct can cause obstructive hydrocephalus by blocking the flow of cerebrospinal fluid. We describe a rare case of obstructive hydrocephalus due to aqueductal stenosis secondary to a DVA. A 43-year-old man presented with sudden bilateral temporal pain during weight training. Using a 3-Tesla scanner, cranial magnetic resonance imaging (MRI) was performed, and hydrocephalus was found with mild enlargement of the lateral and third ventricles. Susceptibility-weighted imaging and postcontrast MRI revealed that the DVA from the bilateral thalami narrowed the orifice of the aqueduct on its drainage route towards the vein of Galen. We assumed that force exerted during weight training may have caused dilation of the anomalous veins, leading to his symptom. A review of the relevant English-language literature yielded only 19 cases of aqueductal stenosis due to DVA. In comparison to these cases, the duration of symptom in our case was extremely short because the patient had a history of ventriculomegaly detected on plain computed tomography and was diagnosed quickly based on the characteristic finding of DVA: the caput medusae appearance.
Language	English
Publishing date	2024-03-01
Publishing country	Netherlands
Document type	Case Reports
ZDB-ID	2406300-9
ISSN	1930-0433
ISSN	1930-0433
DOI	10.1016/j.radcr.2024.02.023
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Gastric cancer after laparoscopic adjustable gastric banding: A case report.

Kanno, Masaki / Umemura, Akira / Baba, Shigeaki / Nikai, Haruka / Sugimoto, Ryo / Sasaki, Akira

International journal of surgery case reports

2024 Volume 119, Page(s) 109714

Abstract: Introduction: Gastric cancer occurring after bariatric and metabolic surgeries is rare. We report a case of gastric cancer that developed at 14 years after laparoscopic adjustable gastric banding.: Presentation of case: The patient was an obese 81- ... ...

Abstract	Introduction: Gastric cancer occurring after bariatric and metabolic surgeries is rare. We report a case of gastric cancer that developed at 14 years after laparoscopic adjustable gastric banding. Presentation of case: The patient was an obese 81-year-old woman who underwent LAGB at 14 years prior when her body mass index was 35.3 kg/m Discussion: While metabolic surgeries have been shown to reduce the risk of developing malignant diseases, including gastric cancer, the present patient developed gastric cancer at 14 years after laparoscopic adjustable gastric banding. The patient developed gastric cancer during a long-term course, indicating the importance of periodic examinations after metabolic surgery. Conclusions: Previous studies showed metabolic surgeries for obesity reduce the risk of developing malignancies, including gastric cancer; however, the present case suggests that gastric cancer may develop over a long-term course.
Language	English
Publishing date	2024-04-27
Publishing country	Netherlands
Document type	Case Reports
ISSN	2210-2612
ISSN	2210-2612
DOI	10.1016/j.ijscr.2024.109714
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Article ; Online: Combined lie's type D and type a agenesis of the left internal carotid artery diagnosed by magnetic resonance angiography.

Maki, Takashi / Uchino, Akira / Sugiyama, Munehiro / Mizunuma, Kimiyoshi / Baba, Yasutaka

Surgical and radiologic anatomy : SRA

2024

Abstract: Purpose: To report an unusual case of combined Lie's types A and D of internal carotid artery (ICA) agenesis, diagnosed by magnetic resonance angiography (MRA).: Methods: A 60-year-old woman with dizziness underwent cranial magnetic resonance imaging ...

Abstract	Purpose: To report an unusual case of combined Lie's types A and D of internal carotid artery (ICA) agenesis, diagnosed by magnetic resonance angiography (MRA). Methods: A 60-year-old woman with dizziness underwent cranial magnetic resonance imaging (MRI) and MRA of the intracranial region for the evaluation of brain and vascular lesions. The magnetic resonance machine was a 3.0-T scanner. Results: MRI showed no abnormalities, except for multiple small white matter lesions. MRA showed that the left ICA was absent, except for the supraclinoid segment, and an anastomotic vessel was present between the paraclinoid segments of the bilateral ICAs, indicating Lie's type D ICA agenesis. The left posterior communicating artery (PCoA) was also present. Thus, there were also features of type A ICA agenesis. The anastomotic vessels between the bilateral ICAs and ipsilateral PCoA were relatively small in caliber. Conclusion: Lie's type D ICA agenesis usually does not communicate with the anterior and posterior circulations. We encountered a case of combined type D and type A ICA agenesis. To our knowledge, no similar case has been reported in the English literature. This is the second case of type D ICA agenesis with patent ipsilateral PCoA. We speculate that in case of type A ICA agenesis, when the development of the PCoA is insufficient to support collateral blood flow, an anastomotic vessel between bilateral ICAs may develop.
Language	English
Publishing date	2024-04-29
Publishing country	Germany
Document type	Journal Article
ZDB-ID	632839-8
ISSN	1279-8517 ; 0930-312X ; 0930-1038
ISSN (online)	1279-8517
ISSN	0930-312X ; 0930-1038
DOI	10.1007/s00276-024-03366-1
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Article: Fenestration of the superior cerebellar artery diagnosed by magnetic resonance angiography.

Sonoda, Yuki / Uchino, Akira / Kohyama, Shinya / Baba, Yasutaka

Radiology case reports

2023 Volume 18, Issue 12, Page(s) 4419–4421

Abstract: We herein report a case of fenestration of the superior cerebellar artery (SCA), which was incidentally diagnosed by magnetic resonance (MR) angiography. A 65-year-old woman was referred to our hospital for unruptured cerebral aneurysms. MR angiography ... ...

Abstract	We herein report a case of fenestration of the superior cerebellar artery (SCA), which was incidentally diagnosed by magnetic resonance (MR) angiography. A 65-year-old woman was referred to our hospital for unruptured cerebral aneurysms. MR angiography revealed 2 unruptured aneurysms. It also showed fenestration of the left SCA near its origin from the basilar artery, as well as several other vascular variations: a left common carotid artery arising from the brachiocephalic trunk, and a right vertebral artery terminating to the right posterior inferior cerebellar artery. Yearly observation was chosen as a treatment strategy due to the small size of the cerebral aneurysms. According to previous reports, SCA fenestration is an extremely rare variation. This is the second case of SCA fenestration diagnosed by MR angiography in the relevant English-language literature.
Language	English
Publishing date	2023-10-09
Publishing country	Netherlands
Document type	Case Reports
ZDB-ID	2406300-9
ISSN	1930-0433
ISSN	1930-0433
DOI	10.1016/j.radcr.2023.09.023
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Article ; Online: Congenital external carotid-internal carotid artery anastomosis: a report of three cases and literature review.

Uchino, Akira / Suzuki, Jun / Baba, Yasutaka

Surgical and radiologic anatomy : SRA

2023 Volume 45, Issue 8, Page(s) 995–998

Abstract: Purpose: Congenital external carotid-internal carotid artery (EC-ICA) anastomosis is a cervical arterial variation that was initially reported, based on anatomic dissection, from Japan in 2000. The purpose of this report is to show the characteristic ... ...

Abstract	Purpose: Congenital external carotid-internal carotid artery (EC-ICA) anastomosis is a cervical arterial variation that was initially reported, based on anatomic dissection, from Japan in 2000. The purpose of this report is to show the characteristic radiological findings of this extremely rare cervical arterial variation. Methods: We analyzed nine cases, including six previously reported cases and three cases that we recently experienced. Three of the six previously reported cases were from Japan, and the remaining three cases were from Korea. MR angiography (4), CT angiography (2), catheter angiography (2) and autopsy (1) were used as diagnostic modalities. Results: The study population included eight men and one woman. Anastomosis was seen on the left side in seven cases and the right side in two cases, and it was located at the level of the C1/2-C2/3 intervertebral space. In all cases, ECA was larger than the ICA at the level of their origins. In four cases, the ICA was extremely small in caliber. In one case, the ICA may have been occluded postnatally, and its configuration was similar to that of the nonbifurcating cervical carotid artery (CCA). With the exception of this occluded case, the carotid bifurcation and EC-ICA anastomosis formed a large arterial ring in all cases. Conclusion: EC-ICA anastomosis can be regarded as a variant of the nonbifurcating CCA because if the most proximal segment of the small ICA is occluded, nonbifurcating CCA may form. EC-ICA anastomosis is located between the C1/2-C2/3 intervertebral space and may be formed by the remnants of the proatlantal artery I.
MeSH term(s)	Male ; Female ; Humans ; Carotid Artery, Internal/abnormalities ; Carotid Artery, External/diagnostic imaging ; Carotid Artery, External/surgery ; Carotid Artery, External/abnormalities ; Carotid Arteries/abnormalities ; Angiography ; Anastomosis, Surgical
Language	English
Publishing date	2023-06-24
Publishing country	Germany
Document type	Review ; Case Reports ; Journal Article
ZDB-ID	632839-8
ISSN	1279-8517 ; 0930-312X ; 0930-1038
ISSN (online)	1279-8517
ISSN	0930-312X ; 0930-1038
DOI	10.1007/s00276-023-03187-8
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Article: Dynamic contrast-enhanced MRI parameters and apparent diffusion coefficient as treatment response markers of skull base osteomyelitis: a preliminary study.

Baba, Akira / Kurokawa, Ryo / Kurokawa, Mariko / Srinivasan, Ashok

Polish journal of radiology

2023 Volume 88, Page(s) e319–e324

Abstract: Purpose: Currently, there is no definitive consensus on the optimal imaging modality for determining the treatment response in patients with skull base osteomyelitis (SBO). This study aimed to investigate the utility of dynamic contrast-enhanced ... ...

Abstract	Purpose: Currently, there is no definitive consensus on the optimal imaging modality for determining the treatment response in patients with skull base osteomyelitis (SBO). This study aimed to investigate the utility of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) parameters and apparent diffusion coefficient (ADC) as treatment response markers of SBO. Material and methods: This study included 6 patients with SBO, who underwent both pre- and post-treatment DCE-MRI and diffusion-weighted imaging (DWI). Quantitative DCE-MRI parameters and ADC of the region-of-interest were analysed. These normalized parameters were calculated by dividing the region-of-interest by the reference region. The Wilcoxon signed rank test was used to compare these parameters between pre- and post-treatment periods. Results: The normalized fraction of the extravascular extracellular space (V Conclusions: DCE-MRI parameters V
Language	English
Publishing date	2023-07-05
Publishing country	Poland
Document type	Journal Article
ZDB-ID	2675143-4
ISSN	1899-0967 ; 1733-134X
ISSN (online)	1899-0967
ISSN	1733-134X
DOI	10.5114/pjr.2023.130383
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Article ; Online: MRI features of sinonasal tract angiofibroma/juvenile nasopharyngeal angiofibroma: Case series and systematic review.

Baba, Akira / Kurokawa, Ryo / Kurokawa, Mariko / Srinivasan, Ashok

Journal of neuroimaging : official journal of the American Society of Neuroimaging

2023 Volume 33, Issue 5, Page(s) 675–687

Abstract: Background and purpose: To comprehensively summarize the radiological characteristics of sinonasal tract angiofibroma (STA) (commonly known as juvenile nasopharyngeal angiofibroma).: Methods: Forty-four lesions from 41 cases provided by 33 study ... ...

Abstract	Background and purpose: To comprehensively summarize the radiological characteristics of sinonasal tract angiofibroma (STA) (commonly known as juvenile nasopharyngeal angiofibroma). Methods: Forty-four lesions from 41 cases provided by 33 study articles identified through a systematic review and 13 lesions from 13 cases from our institution associated with patients with STA who underwent MRI were included in the review study, carried out by two board-certified experienced radiologists. Results: The study participants were all male patients with a mean age of 15.6 years at the time of diagnosis. All of them presented with nasal cavity lesions (100%), predominantly in the nasopharynx (98.2%). The sphenopalatine foramen/pterygopalatine fossa was involved in 76.0%, and compressive shift of the posterolateral wall of the maxillary sinus was present in more than half (57.9%). T2-weighted imaging signal intensity was heterogeneous with mixed high and iso intensities as compared to skeletal muscle (100%). T1-weighted imaging showed partial high signal intensity in 61.1% of the cases. Flow void and intense enhancement were present in almost all cases. Cystic/nonenhancement changes on contrast-enhanced MRI were relatively common (40.8%). The mean apparent diffusion coefficient value (2.07 × 10 Conclusions: We summarized the MRI findings of STA that can facilitate timely diagnosis and appropriate management.
MeSH term(s)	Humans ; Male ; Adolescent ; Angiofibroma/diagnostic imaging ; Angiofibroma/pathology ; Nasopharyngeal Neoplasms/diagnosis ; Nasopharynx/pathology ; Paranasal Sinuses/pathology ; Magnetic Resonance Imaging
Language	English
Publishing date	2023-05-10
Publishing country	United States
Document type	Systematic Review ; Journal Article ; Review
ZDB-ID	1071724-9
ISSN	1552-6569 ; 1051-2284
ISSN (online)	1552-6569
ISSN	1051-2284
DOI	10.1111/jon.13116
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Article: The Possibility of Acute Drug-Induced Liver Injury Associated With Prednisolone.

Okano, Hiroshi / Takagi, Mikio / Mukai, Katsumi / Nishimura, Akira / Asakawa, Kana / Baba, Youichirou / Murata, Tetsuya

Cureus

2024 Volume 16, Issue 2, Page(s) e54227

Abstract: A female patient was referred to our hospital with complaints of liver injury. She had been treated for immunoglobulin (Ig)A nephropathy using prednisolone and other medications. Drug-induced liver injury (DILI) was suspected, as no evidence of viral ... ...

Abstract	A female patient was referred to our hospital with complaints of liver injury. She had been treated for immunoglobulin (Ig)A nephropathy using prednisolone and other medications. Drug-induced liver injury (DILI) was suspected, as no evidence of viral infection or autoimmune liver disease was apparent. All medications except for prednisolone were discontinued, but liver enzyme levels remained elevated. Percutaneous liver biopsy showed the characteristics of DILI and drug lymphocyte stimulation testing yielded positive results for prednisolone. After stopping administration of prednisolone, liver enzyme levels recovered to near-normal. Prednisolone has immunosuppressive effects and is sometimes used to treat DILI. Some reports have revealed that high-dose corticosteroids can induce liver injury, but liver injuries associated with low-dose corticosteroid therapy have not been described. Prednisolone-induced liver injury is a rare phenomenon. When low-dose corticosteroids are used for treatment, care should be taken regarding the possibility of liver injury.
Language	English
Publishing date	2024-02-15
Publishing country	United States
Document type	Case Reports
ZDB-ID	2747273-5
ISSN	2168-8184
ISSN	2168-8184
DOI	10.7759/cureus.54227
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Article ; Online: Excellent capture of N

Hiraki, Suguru / Baba, Haruka / Kobayashi, Ikuka / Oda, Akira / Ohkubo, Takahiro / Ikemoto, Yuka / Moriwaki, Taro / Kuroda, Yasushige

Chemical communications (Cambridge, England)

2024 Volume 60, Issue 34, Page(s) 4597–4600

Abstract: We have found an efficient adsorption feature provided by an NaCaA-85 zeolite for ... ...

Abstract	We have found an efficient adsorption feature provided by an NaCaA-85 zeolite for N
Language	English
Publishing date	2024-04-23
Publishing country	England
Document type	Journal Article
ZDB-ID	1472881-3
ISSN	1364-548X ; 1359-7345 ; 0009-241X
ISSN (online)	1364-548X
ISSN	1359-7345 ; 0009-241X
DOI	10.1039/d4cc00599f
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Article ; Online: Type 2 persistent primitive olfactory artery associated with bilateral ophthalmic arteries arising from the middle meningeal arteries diagnosed by magnetic resonance angiography.

Uchino, Akira / Baba, Yasutaka

Surgical and radiologic anatomy : SRA

2021 Volume 43, Issue 12, Page(s) 1947–1950

Abstract: Persistent primitive olfactory artery (PPOA) is a relatively rare variation of the proximal anterior cerebral artery (ACA). Traditionally, there are two types: Type 1 is a common type, which generally follows an anteroinferior course and which takes a ... ...

Abstract	Persistent primitive olfactory artery (PPOA) is a relatively rare variation of the proximal anterior cerebral artery (ACA). Traditionally, there are two types: Type 1 is a common type, which generally follows an anteroinferior course and which takes a hairpin turn before continuing to the A2 segment of the ACA. Type 2 is an extremely rare variation that continues to the anterior ethmoidal artery without a hairpin turn. Since Type 2 PPOAs are small in caliber, previously reported cases were found during anatomical dissection or were detected by catheter angiography. We herein report a case of Type 2 PPOA that was diagnosed by partial-maximum-intensity projection images of magnetic resonance angiography. This patient also had bilateral ophthalmic arteries arising from the middle meningeal artery. These two variations may be related to each other.
MeSH term(s)	Anterior Cerebral Artery/diagnostic imaging ; Cerebral Angiography ; Humans ; Magnetic Resonance Angiography ; Meningeal Arteries/diagnostic imaging ; Ophthalmic Artery/diagnostic imaging
Language	English
Publishing date	2021-05-13
Publishing country	Germany
Document type	Case Reports ; Journal Article
ZDB-ID	632839-8
ISSN	1279-8517 ; 0930-312X ; 0930-1038
ISSN (online)	1279-8517
ISSN	0930-312X ; 0930-1038
DOI	10.1007/s00276-021-02765-y
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