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Suprahyoid and Infrahyoid Neck Overview
Surjith Vattoth, MD, FRCR
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TERMINOLOGY

  • Abbreviations

    • Suprahyoid neck (SHN); infrahyoid neck (IHN)
  • Definitions

    • SHN: Spaces from skull base to hyoid bone (excluding orbit, sinuses, & oral cavity) including parapharyngeal (PPS), pharyngeal mucosal (PMS), masticator (MS), parotid (PS), carotid (CS), buccal (BS), retropharyngeal (RPS), & perivertebral (PVS)
      • For purposes of our discussion, sublingual & submandibular spaces are included in oral cavity section of this text
    • IHN: Spaces below level of hyoid bone with some continuing into mediastinum including visceral space (VS), posterior cervical space (PCS), anterior cervical space (ACS), CS, RPS, & PVS

IMAGING ANATOMY

  • Overview

    • Spaces of Suprahyoid & Infrahyoid Neck

      • Key Spatial Relationships

        Related Anatomy
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        Related Differential Diagnoses
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        References
        Tables

        Tables

        TERMINOLOGY

        • Abbreviations

          • Suprahyoid neck (SHN); infrahyoid neck (IHN)
        • Definitions

          • SHN: Spaces from skull base to hyoid bone (excluding orbit, sinuses, & oral cavity) including parapharyngeal (PPS), pharyngeal mucosal (PMS), masticator (MS), parotid (PS), carotid (CS), buccal (BS), retropharyngeal (RPS), & perivertebral (PVS)
            • For purposes of our discussion, sublingual & submandibular spaces are included in oral cavity section of this text
          • IHN: Spaces below level of hyoid bone with some continuing into mediastinum including visceral space (VS), posterior cervical space (PCS), anterior cervical space (ACS), CS, RPS, & PVS

        IMAGING ANATOMY

        • Overview

          • Spaces of Suprahyoid & Infrahyoid Neck

            • Key Spatial Relationships