Laryngeal leiomyosarcoma, a case report and review of articles

Abstract

Introduction: Laryngeal leiomysarcoma is an extremely rare malignancy originating from smooth muscle cells. Its rarity is due to the fact that only less than 50 cases of pure laryngeal leiomyosarcoma and less than 10 cases of hypopharyngeal leiomyosarcaoma have been reported in modern medical literature. Even though the clinical presentation mimics that of a laryngeal carcinoma forming the major bulk of the laryngeal malignancies, the difference in management, warrants an accurate diagnosis.

Case report: We reported a case of this very rare malignancy presenting in the supraglottic region by highlighting the clinical features, histological and radiological diagnosis and management of this extremely rare malignant entity.

Conclusion: An accurate histological diagnosis may be difficult; but supplementing by electron microscopy and immunohistochemical staining, the diagnosis can be reached certainly.

Keywords: Larynx; Leiomyosarcoma; Mesodermal neoplasms.

Fig1

Macroscopic feature of laryngeal leiomyosarcoma

Fig 2

Axial CT scan of larynx

Fig 3

fasicles of eosinophilic spindle cells, with vesicular, cigar shaped nuclei (H&E ×400).

Fig4

Immunohistochemical positive reactivity for Desmin (×100).