# Pulmonary Sclerosing Hemangioma Presenting As Perihilar Lung Nodule in a Patient With Papillary Thyroid Carcinoma: A Case Report and Review of the Literature

## TL;DR

This case report describes a rare lung tumor in a patient with thyroid cancer and a family history of cancer.

## Contribution

The novelty lies in presenting a challenging diagnostic case of pulmonary sclerosing pneumocytoma in a patient with multiple cancer risks.

## Key findings

- The patient had a perihilar lung nodule diagnosed as pulmonary sclerosing pneumocytoma after surgery.
- The case highlights the difficulty in diagnosing this rare tumor due to its mimicry of other diseases.
- A review of the literature on clinical presentation and management is provided.

## Abstract

Pulmonary sclerosing pneumocytoma is a rare, typically asymptomatic, tumor with potential for malignant transformation. Diagnosis is frequently difficult due to its rarity and proclivity to mimic other pathologies. Here, we describe a particularly challenging case of a patient with a personal and familial history of other malignancies who presented with an incidental lung nodule, found to be pulmonary sclerosing pneumocytoma on pathologic examination after an anatomic lung resection. We conclude with a review of the natural history, clinical and histopathological presentation, and management options for this rare entity.