A Case Report of Hypoglycemia Caused by Solitary Fibrous Tumors of Pleura

Solitary fibrous tumors of the pleura (SFTP) are rare and often benign tumors, originating from mesenchymal (not mesothelial) cells of pleura. Depending on tumor size and its location it may present with compression effects on adjacent structures or pareneoplastic features such as hypoglycemia and clubbing of the fingers. In this presentation, we reported a 70 years old man who referred to our outpatient's clinic, showing with neurological symptoms such as dizziness, weakness, fatigue and significant weight loss. Laboratory findings showed hypoglycemia, and chest x-ray detected the first indication of the existence of a mass in the left hemi thorax, elevating the ipsilateral diaphragm. He underwent left thoracotomy and a well-encapsulated mass weighing 3 Kg was resected from the thorax. Histopathologically, it was a benign connective tissue without any evidence of malignancy as was shown by immunohistochemistry. Postoperative period was uneventful and patient was discharged from hospital with normal blood sugar.