TY - JOUR T1 - An unreported accessory muscle on the neck region AU - Gürçay, Sezgi AU - Önder, Merve AU - Akyol, Gökçe AU - Oğuz, Nurettin PY - 2024 DA - September DO - 10.17944/interdiscip.1371839 JF - Interdisciplinary Medical Journal JO - Interdiscip Med J PB - Hatay Mustafa Kemal University WT - DergiPark SN - 2980-1915 SP - 92 EP - 95 VL - 15 IS - 52 LA - en AB - Anatomical variations or accessory muscles on the neck region are important for clinicians and surgeons. This case report aims to contribute to the literature by demonstrating the presence of a previously unrecognized muscle on the lateral neck region. During routine gross anatomy dissection of a 59-year-old male cadaver; an unreported muscle was observed next to the scalene muscles on the left lateral neck region. The distance between the center of the scalenus medius and the insertion of the muscle was 6.17 cm, and the distance between the scapular notch and the insertion of the muscle was 1.56 cm. The distance between the aponeurosis that connects the superior and the inferior bellies of the omohyoideus muscle and the first head of the muscle was 6.24 cm. This anatomical formation, which is not included in the literature, has anatomical and clinical importance in controversial clinical cases in neck pathologies. KW - Accessory muscle KW - Clinical anatomy KW - Lateral neck region KW - Neck surgery KW - Variation CR - Standring S. Gray's anatomy e-book: the anatomical basis of clinical practice: Elsevier Health Sciences; 2021. CR - Abakay MA, Güneş S, Küçük C, Yazıcı ZM, Gülüstan F, Arslan MN, et al. Accessory Nerve Anatomy in Anterior and Posterior Cervical Triangle: A Fresh Cadaveric Study. Turk Arch Otorhinolaryngol. 2020;58(3):149. https://doi.org/10.5152/tao.2020.5263 CR - Kang DW, Byeon Y, Yoon SP. An accessory belly of the sternothyroid muscle on the anterior neck. Surg Radiol Anat. 2015;37:215-7. https://doi.org/10.1007/s00276-014-1295-5 CR - Mansoor SN, Rathore FA. Accessory Clavicular Sternocleidomastoid Causing Torticollis in an Adult. Prog Rehabil Med. 2018;3:20180006. https://doi.org/10.2490/prm.20180006 CR - Natsis K, Piagkou M, Vrochidis P, Papadopoulou E, Lazaridis N. Unilateral asymmetrical anterior bellies of the digastric muscle in coexistence with accessory muscle bundles in the submental triangle: A rare case report. Morphologie. 2018;102(337):83-6. https://doi.org/10.1016/j.morpho.2017.10.001 CR - Natsis K, Piagkou M, Lazaridis N, Anastasopoulos N. Asymmetry of the Accessory Anterior Digastric Muscle Bellies: The Clinical Significance in Facial and Neck Surgery. Cureus. 2020;12(2):e7148. https://doi.org/10.7759/cureus.7148 CR - Ortug G, Sipahi B, Ortug A, Ipsalali H. Variations of the digastric muscle and accessory bellies-A study of gross anatomic dissections. Morphologie. 2020;104(345):125-32. https://doi.org/10.1016/j.morpho.2019.09.189 CR - Yuen SN, Gengler I, Badhey AK, Tang AL, Zender C. Absent Posterior Belly of Digastric Muscle. The Laryngoscope. 2021;131(7):1501-2. https://doi.org/10.1002/lary.29317 CR - Anderson H, Tucker R. A cadaveric analysis of anatomical variations of the anterior belly of the digastric muscle. Folia Morphol. 2021;80(3):691-8. https://doi.org/10.5603/FM.a2020.0105 CR - Sarna K, Ngeow WC, Kandimalla A, Estreed MA, Sonigra KJ, Kamau M. More than two–A cadaveric study on the morphometry and classification of the digastric muscle in a selected kenyan population. Morphologie. 2022. https doi.org/10.1016/j.morpho.2022.06.001 CR - Silawal S, Morgan S, Ruecker L, Schulze-Tanzil G. A unilateral sternopharyngeal branch of the sternocleidomastoid muscle in an aged Caucasian male: a unique cadaveric report. Folia Morphol. 2022. https://doi.org/10.5603/FM.a2022.0016 CR - Wang X, Zou H, Chen J, Zhang H, Fu Y, Wang Y, et al. An unusual sternalis with variation of the contralateral sternocleidomastoid muscle: a case report. Surg Radiol Anat. 2022;44(7):987-90. https://doi.org/10.1007/s00276-022-02980-1 CR - Hsiao TH, Chang HP. Anatomical variations in the digastric muscle. The Kaohsiung J Med Sci. 2019;35(2):83-6. https://doi.org/10.1002/kjm2.12012 CR - Ozgur Z, Govsa F, Ozgur T. Bilateral quadrification of the anterior digastric muscles with variations of the median accessory digastric muscles. J Craniof Surg. 2007;18(4):773-5. https://doi.org/10.1097/scs.0b013e318068ff09 CR - Fayed M, Khalil S, Patel N, Hussain A. Unexpected Anatomical Variation While Performing an Ultrasound-Guided Interscalene Block for Shoulder Surgery. Cureus. 2022;14(5). https://doi.org/10.7759/cureus.25079 CR - Rani A, Chopra J, Rani A, Verma RK. Duplicated anterior belly of the digastric muscle. Singapore Med J. 2013;54(6):e131-e2. https://doi.org/10.11622/smedj.2013117 UR - https://doi.org/10.17944/interdiscip.1371839 L1 - https://dergipark.org.tr/en/download/article-file/3456890 ER -