Descending musculospinal branch of the ascending pharyngeal artery as a feeder of carotid body tumors

Angio-architecture and embryological consideration

Shunsuke Shibao, Takenori Akiyama, Hiroyuki Ozawa, Toshiki Tomita, Kaoru Ogawa, Kazunari Yoshida

Research output: Contribution to journalArticle

Abstract

Introduction: Although the ascending pharyngeal artery (APhA) is known as a main feeder of carotid body tumors (CBTs), its detailed architecture and embryological consideration have not been described. The objective of this study was to describe the architecture of a descending feeder of the APhA and to consider its origin embryologically through a review of our CBT embolizations. Methods: We retrospectively analyzed data from patients with CBTs who underwent transarterial embolization or angiographic examination–only between July 2010 and February 2017. The arterial supply of the tumors, the number of feeder pedicles, the mean tumor size, embolization materials, complication of embolization, and extent of tumor removal were assessed. The embryological origin of feeding artery was considered based on the literature. Results: Eighteen patients with 20 CBTs underwent preoperative embolization or angiographic examination. The number of feeder pedicles was significantly related to the size of the CBT (P = 0.0002). The main feeding artery was the descending branch of APhA, which was hypertrophied and tortuous (18/20, 90%). Embryologically, this artery originated from the musculospinal branch and is termed the “descending musculospinal branch”. Conclusion: The main feeder of the CBTs was the “descending musculospinal branch” of the APhA and needs special consideration such as dangerous anastomosis for embolization.

Original languageEnglish
JournalJournal of Neuroradiology
DOIs
Publication statusAccepted/In press - 2018 Jan 1

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Carotid Body Tumor
Arteries
Neoplasms

Keywords

  • Angio-architecture
  • Ascending pharyngeal artery
  • Carotid body tumor
  • Embolization
  • Feeding artery

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

Cite this

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title = "Descending musculospinal branch of the ascending pharyngeal artery as a feeder of carotid body tumors: Angio-architecture and embryological consideration",
abstract = "Introduction: Although the ascending pharyngeal artery (APhA) is known as a main feeder of carotid body tumors (CBTs), its detailed architecture and embryological consideration have not been described. The objective of this study was to describe the architecture of a descending feeder of the APhA and to consider its origin embryologically through a review of our CBT embolizations. Methods: We retrospectively analyzed data from patients with CBTs who underwent transarterial embolization or angiographic examination–only between July 2010 and February 2017. The arterial supply of the tumors, the number of feeder pedicles, the mean tumor size, embolization materials, complication of embolization, and extent of tumor removal were assessed. The embryological origin of feeding artery was considered based on the literature. Results: Eighteen patients with 20 CBTs underwent preoperative embolization or angiographic examination. The number of feeder pedicles was significantly related to the size of the CBT (P = 0.0002). The main feeding artery was the descending branch of APhA, which was hypertrophied and tortuous (18/20, 90{\%}). Embryologically, this artery originated from the musculospinal branch and is termed the “descending musculospinal branch”. Conclusion: The main feeder of the CBTs was the “descending musculospinal branch” of the APhA and needs special consideration such as dangerous anastomosis for embolization.",
keywords = "Angio-architecture, Ascending pharyngeal artery, Carotid body tumor, Embolization, Feeding artery",
author = "Shunsuke Shibao and Takenori Akiyama and Hiroyuki Ozawa and Toshiki Tomita and Kaoru Ogawa and Kazunari Yoshida",
year = "2018",
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T1 - Descending musculospinal branch of the ascending pharyngeal artery as a feeder of carotid body tumors

T2 - Angio-architecture and embryological consideration

AU - Shibao, Shunsuke

AU - Akiyama, Takenori

AU - Ozawa, Hiroyuki

AU - Tomita, Toshiki

AU - Ogawa, Kaoru

AU - Yoshida, Kazunari

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Introduction: Although the ascending pharyngeal artery (APhA) is known as a main feeder of carotid body tumors (CBTs), its detailed architecture and embryological consideration have not been described. The objective of this study was to describe the architecture of a descending feeder of the APhA and to consider its origin embryologically through a review of our CBT embolizations. Methods: We retrospectively analyzed data from patients with CBTs who underwent transarterial embolization or angiographic examination–only between July 2010 and February 2017. The arterial supply of the tumors, the number of feeder pedicles, the mean tumor size, embolization materials, complication of embolization, and extent of tumor removal were assessed. The embryological origin of feeding artery was considered based on the literature. Results: Eighteen patients with 20 CBTs underwent preoperative embolization or angiographic examination. The number of feeder pedicles was significantly related to the size of the CBT (P = 0.0002). The main feeding artery was the descending branch of APhA, which was hypertrophied and tortuous (18/20, 90%). Embryologically, this artery originated from the musculospinal branch and is termed the “descending musculospinal branch”. Conclusion: The main feeder of the CBTs was the “descending musculospinal branch” of the APhA and needs special consideration such as dangerous anastomosis for embolization.

AB - Introduction: Although the ascending pharyngeal artery (APhA) is known as a main feeder of carotid body tumors (CBTs), its detailed architecture and embryological consideration have not been described. The objective of this study was to describe the architecture of a descending feeder of the APhA and to consider its origin embryologically through a review of our CBT embolizations. Methods: We retrospectively analyzed data from patients with CBTs who underwent transarterial embolization or angiographic examination–only between July 2010 and February 2017. The arterial supply of the tumors, the number of feeder pedicles, the mean tumor size, embolization materials, complication of embolization, and extent of tumor removal were assessed. The embryological origin of feeding artery was considered based on the literature. Results: Eighteen patients with 20 CBTs underwent preoperative embolization or angiographic examination. The number of feeder pedicles was significantly related to the size of the CBT (P = 0.0002). The main feeding artery was the descending branch of APhA, which was hypertrophied and tortuous (18/20, 90%). Embryologically, this artery originated from the musculospinal branch and is termed the “descending musculospinal branch”. Conclusion: The main feeder of the CBTs was the “descending musculospinal branch” of the APhA and needs special consideration such as dangerous anastomosis for embolization.

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