Canis ISSN: 2398-2942

Larynx: neoplasia

Introduction

  • Very rare.
  • Cause: various tumor types.
  • Signs: upper airway obstruction, inspiratory stridor.
  • Diagnosis: signs, radiography, endoscopy.
  • Treatment: surgery or chemotherapy.
  • Prognosis: poor.

Pathogenesis

Etiology

  • Laryngeal neoplasms very rare:
    • SCC.
    • Leiomyoma.
    • Rhabdomyosarcoma.
    • Oncocytoma.
    • Mast cell tumor.
    • Chondrosarcoma.
    • Adenocarcinoma.
    • Lymphoma.
    • Melanoma.
    • Benign neoplasm.
  • Perilaryngeal tumors are more common, eg thyroid carcinoma Thyroid gland: neoplasia , lymphoma Lymphoma - and may interfere with laryngeal function.

Pathophysiology

  • Laryngeal or extralaryngeal neoplasia → upper airway obstruction.
  • Interference with swallowing → dysphagia/aspiration pneumonia.

Timecourse

  • Depends on nature and location of tumor.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Flanders J A, Castleman W & Carberry C A et al (1987) Laryngeal chondrosarcoma in a dog. JAVMA 190 (1), 68-70 PubMed.
  • Saik J E, Toll S L & Diters R W et al (1986) Canine and feline laryngeal neoplasia a 10 years survey. JAAHA 22 (3), 359-65 VetMedResource.


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