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Related Concept Videos

Sutures of the Skull01:22

Sutures of the Skull

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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.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
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Overview of the Skull01:08

Overview of the Skull

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The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...
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Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

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The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
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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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Cranial and Spinal Meninges01:19

Cranial and Spinal Meninges

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The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...
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Veins of Head and Neck01:19

Veins of Head and Neck

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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.
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
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Related Experiment Video

Updated: Mar 1, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
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Clival Osteomyelitis Presenting as a Skull Base Mass.

Matthew Michalowicz1, Murugappan Ramanathan2

  • 1Department of Otolaryngology, Walter Reed National Military Medical Center, Bethesda, Maryland, United States.

Journal of Neurological Surgery Reports
|June 9, 2017
PubMed
Summary

Central skull base osteomyelitis, a rare and serious condition, can mimic tumors by causing cranial nerve deficits. Early recognition is crucial for effective management of this uncommon infection.

Keywords:
central skull base osteomyelitisclival osteomyelitisskull base massskull base osteomyelitis

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Area of Science:

  • Otolaryngology
  • Neurology
  • Infectious Diseases

Background:

  • Central skull base osteomyelitis is a rare but severe infection.
  • It often presents without typical ear-related symptoms or external auditory canal issues.

Observation:

  • A case study involving a male patient in his 70s is presented.
  • The patient exhibited cranial nerve deficits.
  • Radiographic imaging suggested a tumorous condition.

Findings:

  • The observed cranial nerve deficits and imaging results were attributed to central skull base osteomyelitis.
  • This highlights the condition's potential to mimic neoplastic processes.

Implications:

  • Increased awareness of central skull base osteomyelitis is needed within the otolaryngology field.
  • Radiographic findings suggestive of tumors should prompt consideration of this infectious etiology.
  • Prompt diagnosis and treatment are vital for potentially life-threatening outcomes.