SUN-295 A Case of a Bronchopulmonary Tumor Masquerading as Recurrent Pneumonia

Abstract Disclosure: F.C. Yap: None. J.Z. Lacson: None. J.P. de Leon: None. M.G. Famorcan: None. A. Hernandez: None. L.B. Mercado-Asis: None. Introduction:Bronchopulmonary carcinoid tumors are rare, slow-growing neuroendocrine neoplasms that account for 0.5-5% of pulmonary malignancies. These tumors often challenging to diagnose due to their diverse presentations and the absence of distinct biochemical markers. Compared to other lung cancers, these types of tumor generally have more favorable prognosis, however their potential complications such as carcinoid crisis post significant risk.Clinical Case:We present a case of a 26-year-old male diagnosed with a typical bronchopulmonary carcinoid tumor in the left main bronchus. This case highlights the importance of a comprehensive, multidisciplinary approach to the diagnosis and management of this rare condition. Critical to the successful outcome was meticulous preoperative preparation, including the administration of octreotide to prevent a potentially life-threatening carcinoid crisis.Preoperative planning also involved an extensive pulmonary function assessment to evaluate the patient’s respiratory capacity and the risks associated with surgical resection. Despite negative biochemical markers for carcinoid syndrome, the patient presented with symptoms typical of this condition. This highlights the importance of clinical assessment in diagnosing rare tumors, especially when laboratory findings are inconclusive.Following a thorough evaluation, the decision was made to proceed with surgery. The patient then underwent a post-operative pulmonary rehabilitation program aimed to optimize recovery and return patient to baseline conditions.Conclusion:This case highlights the effectiveness and essentiality of multidisciplinary collaboration that begins from diagnosis and preoperative planning, as well as individualized postoperative care to achieve the best outcome for patients presenting with bronchopulmonary carcinoid tumors. A tailored, multi-disciplinary approach combining surgical expertise, early diagnosis, genetic evaluation, and long-term surveillance is crucial for the successful management of bronchopulmonary NETs. Presentation: Sunday, July 13, 2025