Treatment and post-operative follow-up of pulmonary sclerosing pneumocytoma: A case report.

Introduction and importance: Pulmonary sclerosing pneumocytoma (PSP) is a rare tumor thought to originate from respiratory epithelial cells. It is usually benign, but may rarely metastasize to lymph nodes. Surgeons face unique challenges in diagnosis and management of this condition, and ideal surgical management is yet to be established. Case presentation: 48-year-old woman with a 7 × 7 mm pulmonary lesion discovered incidentally on computerized tomography (CT) imaging, which grew to 9 mm over the following year. Seven years later, follow-up imaging revealed that the mass had grown to 1.3 cm in largest dimension. Surgery was recommended and the mass was resected via a right video-assisted thoracic surgery (VATS) middle lobectomy with mediastinal lymph node dissection. All lymph nodes were negative and the patient's postoperative course was unremarkable. Clinical discussion: There are few evidence-based guidelines available on the treatment and postoperative surveillance of PSP. Research has shown comparable recurrence-free survival rates for sublobar resection and lobectomy, though recurrence can occur, especially following sublobar resection in larger or more centrally-located tumors. In absence of established guidelines, it was decided to follow this patient according to NCCN guidelines for surveillance of early-stage non-small cell lung cancer due to potential risk of recurrence. Conclusion: This case report adds to the limited literature on PSP and depicts a possible treatment and postoperative follow-up plan. Right VATS middle lobectomy can effectively treat some cases of central PSP. In absence of established guidelines for postoperative follow-up of PSP, NCCN guidelines may outline one possible strategy for postoperative management.