Introduction: The "Golden S Sign" is a classic radiologic indicator of bronchogenic carcinoma, especially when involving the right upper lobe bronchus. Early recognition of such signs can prompt further investigation and diagnosis of lung malignancy. Case Presentation: A 65-year-old male chronic smoker presented with hemoptysis, breathlessness, chest pain, fever, and weight loss. Chest X-ray revealed right upper lobe collapse and hilar prominence. CT scan and bronchoscopy confirmed the presence of a necrotic mass obstructing the right upper lobe bronchus. Histopathological analysis revealed poorly differentiated non-small cell carcinoma. Conclusion: Despite initial CT-guided biopsy being inconclusive, radiological suspicion guided further diagnostic steps, confirming malignancy. This case highlights the importance of the "Golden S Sign" as a reliable early radiologic clue for lung cancer. |