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Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
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The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
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The superior view of the cranium shows the frontal and paired parietal bones.
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The blood drainage from the head and neck is primarily managed by three pairs of veins: the external jugular, internal jugular, and vertebral veins. The external jugular veins drain superficial scalp and face structures, passing over the sternocleidomastoid muscles to empty into the subclavian veins.
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Lateral Temporal Bone Resection With a High-Riding Jugular Bulb.

Joshua Cody Page1, Marc-Elie Nader, Paul W Gidley

  • 1Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|July 31, 2024
PubMed
Summary

A high-riding jugular bulb can complicate ear surgeries. Surgeons must consider this anatomical variation during surgical planning to ensure patient safety.

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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Anatomy

Background:

  • Standard otologic and neurotologic surgical approaches rely on predictable anatomical landmarks.
  • Variations in the jugular bulb position can alter surgical pathways.
  • Accurate pre-operative assessment is crucial for complex cases.

Observation:

  • A high-riding jugular bulb is an anatomical variation where the jugular bulb extends superiorly into the temporal bone.
  • This variation can encroach upon the middle ear and mastoid spaces.
  • It may be identified incidentally on imaging or during surgical exploration.

Findings:

  • A high-riding jugular bulb presents a significant challenge during otologic and neurotologic procedures.
  • Failure to recognize this anomaly can lead to inadvertent injury to the jugular vein or surrounding structures.
  • Careful surgical planning is essential to navigate around this anatomical variation.

Implications:

  • Understanding and identifying a high-riding jugular bulb is critical for successful otologic and neurotologic surgery.
  • Pre-operative imaging and intraoperative awareness are key to mitigating surgical risks.
  • This anatomical consideration enhances patient safety and optimizes surgical outcomes.