Untrapped: bilateral hypoplasia of the trapezius muscle

• 영문명: Untrapped: bilateral hypoplasia of the trapezius muscle
• 발행기관: 대한해부학회
• 저자명: BaileaSue R. Rounds Meredith F. Rasey Randy Kulesza
• 간행물 정보: 『Anatomy and Cell Biology』Vol.56(1), 145~149쪽, 전체 5쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2023.03.31

영문 초록

Agenesis or congenital hypoplasia of skeletal muscles occurs infrequently but may occur with specific conditions such as Poland syndrome. The trapezius muscle can vary in the extent of its bony attachments or may have additional slips, however congenital absence or hypoplasia is extremely rare. There are only a few reports of partial or complete absence of the trapezius muscle. Two cases of bilateral absence of the trapezius were both in males and were accompanied by the absence of additional muscle in the pectoral girdle. Herein, we describe a case of a 56-year-old male cadaver with bilateral hypoplasia of the trapezius. The muscle was largely represented by atrophied muscle fibers with an abundance of fibrotic or fatty connective tissue. This subject had very minor hypoplasia of the left pectoralis major muscle, but the remaining muscles of the pectoral girdle were normal. The spinal accessory nerve terminated in the sternocleidomastoid muscle on both sides, failing to reach the trapezius. We interpret these findings to be consistent with a minor variant of Poland syndrome.

목차

Introduction

Case Report

Discussion

ORCiD

Author Contributions

Conflicts of Interest

Acknowledgements

References

키워드

Anatomy Poland syndrome Cranial nerve