Related Experiment Video
Updated: Nov 4, 2025

The Left Pneumonectomy Combined with Monocrotaline or Sugen as a Model of Pulmonary Hypertension in Rats
Published on: March 8, 2019
A 44-Year-Old Man Presenting With Massive Hemoptysis and Dyspnea
Laura J Oppegard1, Grady Hedstrom2, Jacqueline Levene1
1Department of Internal Medicine, Oregon Health & Science University, Portland, OR.
Case Presentation:
A 44-year-old man presented to the ED with acute massive hemoptysis and hypoxia. His history was notable for 1 year of progressively worsening shortness of breath at both rest and with exertion. He denied chest discomfort and endorsed near syncope while driving in recent months. He recently had been treated with antibiotics for two episodes of presumed pneumonia, based on right lower lobe opacification on chest radiography.
Related Concept Videos
Pneumothorax-II
Clinical Manifestations:
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Pulmonary Embolism I: Introduction
Chronic Obstructive Pulmonary Disease-I: Introduction
COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...

