CRA23 PULMONARY CHONDROMA – A UNIQUE CASE REPORT

Xiao Wei Tan1, Chan Tha A Hing1, Nurul Akmar Misron2, Arvindran Alaga1
1Respiratory Department, Hospital Sultanah Bahiyah, Alor Setar, Kedah, Malaysia
2Pathology Department, Hospital Sultanah Bahiyah, Alor Setar, Kedah, Malaysia

Introduction

Pulmonary chondroma is a rare benign lung tumour with incidence of 0.1% of all benign lung tumours. It originates in chondrocytes and commonly found in long bone but rarely in lung. 

Case Report

We report a case of a 55-year-old male who presented with a cough, a loss of appetite, and a significant weight loss of 15 kg in 2 months. CECT thorax showed left upper lobe collapse secondary to obliteration by endobronchial lesion and right adrenal nodule likely adenoma. Rigid bronchoscopy and debulking of the left upper lobe mass were performed, and recanalization of the airway achieved.

HPE of the left upper lobe mass revealed a low-grade benign chondromyxoid lesion, which is suggestive of pulmonary chondroma. Symptoms resolved post-procedure. He was referred to the surgical team to rule out gastrointestinal stromal tumour (GIST), and further workup for the ‘Carney triad’ is ongoing.

Discussion

Pulmonary chondroma is associated with GIST and extra adrenal paraganglioma as part of the ‘Carney triad’. Diagnosis of ‘Carney triad’ requires at least two of three tumours, the commonest combination being GIST and pulmonary chondroma. High index of suspicion is needed to avoid missing out on other components of the ‘Carney triad’. There is also an increase in the incidence of adrenocortical adenoma, although it is not considered part of the triad. Treatment of choice for pulmonary chondroma is surgical resection.

Conclusion

Pulmonary chondroma is rare, and tumour resection is suggested to prevent airway obstruction. Clinical, radiological, and histopathological correlations are required to improve the diagnosis. After diagnosis, further examination is needed to exclude ‘Carney triad’.