Abstract

Solitary fibrous tumors of the pleura are less than 5% of the pleural tumors. Eighty percent of the cases are caused by visceral pleura and 20% by parietal pleura. They are usually asymptomatic. These tumors, which can reach very large dimensions, can cause coughing and shortness of breath due to compression. Hypoglycemia and hypertrophic pulmonary osteoarthropathy are other symptoms. Definitive diagnosis is usually made after tumor excision. Abundant cellular structure with histologically dense and overlapping nuclei, more than 4 mitotic activities per site, pleomorphism with cytonuclear atypia, presence of large necrotic and hemorrhagic areas support malignancy. In addition, pleural effusion coexistence and atypical localization of the lesion are other findings supporting malignancy. Complete resection of the tumor is the most effective treatment and at the same time the most effective way to prevent recurrence.

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