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Related Concept Videos

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.
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Capillaries, a crucial constituent of the circulatory system, are diminutive vessels with a diameter between 5–10 micrometers, accommodating perfusion to the tissues through the phenomenon known as microcirculation. Through their permeable walls, consisting of an endothelial layer ensconced by a basement membrane and sporadically dispersed smooth muscle fibers, the exchange of substances between the blood and the interstitial fluid becomes plausible. Variance in wall composition exists,...
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The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
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Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
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Benign sinonasal capillary haemangioma.

Darren Stubbs1, Aristotelis Poulios2, Hisham Khalil3

  • 1Peninsula College of Medicine & Dentistry, Plymouth, Devon, UK.

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|October 8, 2014
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Summary

Lobular capillary haemangiomas (LCH) are rare in paranasal sinuses, often misdiagnosed as malignant tumors. This case highlights endoscopic excision and the need for awareness to prevent patient anxiety.

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Area of Science:

  • Otolaryngology
  • Head and Neck Surgery
  • Pathology

Background:

  • Haemangiomas are common benign head and neck tumors, with lobular capillary haemangiomas (LCH) frequently occurring on superficial tissues.
  • LCH are exceptionally rare in the paranasal sinuses, posing diagnostic challenges due to non-specific imaging and histological similarities to malignant neoplasms.

Observation:

  • A case of LCH presented as a suspicious nasal lesion on the lateral nasal wall.
  • Symptoms included unilateral nasal obstruction, a necrotic center, and epistaxis.

Findings:

  • The lesion's imaging and histological features mimicked malignancy, leading to potential preoperative misdiagnosis.
  • Endoscopic excision with medial maxillectomy was successfully performed in a single operation.

Implications:

  • Increased awareness and education regarding LCH in the paranasal sinuses are crucial for accurate diagnosis.
  • Preoperative embolization may be necessary for safe surgical management of these rare lesions.