Question 1

Q: A 24-year-old woman presents with increasing shortness of breath following treatment for right lower lobe pneumonia. She denies fever, cough, or sputum production. Examination reveals decreased tactile fremitus, dullness to percussion, and absent breath sounds over the right lower lung. Additionally, the trachea is deviated to the left. What is the most likely diagnosis for this patient's abnormal pulmonary physical findings?

Large pleural effusion. ### Explanation The patient presents with classic signs of a **large pleural effusion**, likely a parapneumonic effusion following her recent pneumonia [1]. **1. Why "Large Pleural Effusion" is correct:** The diagnosis is based on the triad of physical findings: * **Dullness to percussion:** Fluid in the pleural space replaces air-filled lung tissue [1]. * **Decreased tactile fremitus and absent breath sounds:** Fluid acts as an insulator, preventing the transmission of vocal vibrations and breath sounds from the lung to the chest wall [1]. * **Tracheal deviation to the opposite side:** A large volume of fluid creates a "mass effect," increasing intrapleural pressure and pushing the mediastinal structures (including the trachea) **away** from the affected side [1]. **2. Why other options are incorrect:** * **A. Acute asthmatic attack:** Characterized by hyper-resonance on percussion and diffuse wheezing, not localized dullness or tracheal deviation. * **B. Complete pneumothorax:** While it causes absent breath sounds and can deviate the trachea to the opposite side (if under tension), it presents with **hyper-resonance** (due to air), not dullness. * **C. Atelectasis:** This involves lung collapse. While it causes dullness and decreased breath sounds, it creates negative pressure that pulls the trachea **toward** the side of the lesion. ### NEET-PG High-Yield Pearls * **Tracheal Deviation Rule:** * **Pushes AWAY:** Large Pleural Effusion, Tension Pneumothorax. * **Pulls TOWARD:** Atelectasis (Collapse), Lung Fibrosis, Agenesis. * **Percussion Note:** Dullness = Fluid/Solid (Effusion, Consolidation); Hyper-resonance = Air (Pneumothorax, Emphysema). * **Tactile Fremitus:** Increased only in **Consolidation** (with a patent bronchus); decreased in almost all other pathologies (Effusion, Pneumothorax, Collapse).

Question

A 24-year-old woman presents with increasing shortness of breath following treatment for right lower lobe pneumonia. She denies fever, cough, or sputum production. Examination reveals decreased tactile fremitus, dullness to percussion, and absent breath sounds over the right lower lung. Additionally, the trachea is deviated to the left. What is the most likely diagnosis for this patient's abnormal pulmonary physical findings?

Accepted Answer

Large pleural effusion

Answer

Acute asthmatic attack

Answer

Complete pneumothorax

Answer

Atelectasis

Pulmonology — MCQs

Pulmonology — MCQs

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