Related Experiment Video
Updated: May 19, 2026

Substernal Thyroid Biopsy Using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration
Published on: November 10, 2014
Hidden diagnosis in the subglottic larynx: schwannoma mimicking as bronchial asthma
Fayaz A Sofi1, Mohmad Hussain Mir, Farhana S Bagdadi
1Department of Internal Medicine, Sheri Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, India.
Abstract:
Schwannomas are rare neurogenic tumors derived from the schwann cells. Their laryngeal location is uncommon and the diagnosis is difficult. We report a case of a 17-year-old female who presented with symptoms of intermittent breathlessness mimicking acute attacks of bronchial asthma and resulted in delayed diagnosis, which lead to upper airway obstruction and an emergency tracheostomy. Computed tomography (CT) of neck revealed a soft-tissue mass within the subglottic region. Surgical excision of the growth was done by laryngofissure technique. Histopathological examination of the tumor revealed it to be a schawanoma. The subglottic occurrence of schwannoma is very rare. Case history and detailed clinical examination are important and will guide for relevant investigations and help to reach at a definitive diagnosis.
Related Concept Videos
Asthma I: Introduction
Asthma III: Clinical Manifestations
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma-I: Introduction
Asthma-III: Symptoms and Complications
Classification of Asthma