N Aslam1, Z-U-S Qazi, A H Ahmad, R U Khan. 1. Department of ENT, Head and Neck Surgery, Federal Post Graduate Medical Institute, Shaikh Zayed Hospital, Lahore, Pakistan.
Abstract
OBJECTIVE: We describe the first reported case of a malignant glomus tumour of the larynx. METHOD: Case report and review of the world literature concerning malignant glomus tumours. RESULTS: A 37-year-old man presented with progressive hoarseness and dyspnoea. A smooth, right-sided laryngeal mass was found on flexible nasolaryngoscopy. Initial biopsy of this lesion was reported as a true 'glomus tumour', which is a benign lesion. Wide local excision was performed. The final histology of this specimen showed it to be a 'malignant glomus tumour'. Immunohistochemistry was positive for smooth muscle actin, collagen type IV, vimentin and cluster of differentiation 34 glycoprotein. Total laryngectomy was then performed as a definitive curative procedure. CONCLUSION: Glomus tumour is rarely found in visceral locations. This tumour and its malignant counterpart are rare differential diagnoses of laryngeal masses.
OBJECTIVE: We describe the first reported case of a malignant glomus tumour of the larynx. METHOD: Case report and review of the world literature concerning malignant glomus tumours. RESULTS: A 37-year-old man presented with progressive hoarseness and dyspnoea. A smooth, right-sided laryngeal mass was found on flexible nasolaryngoscopy. Initial biopsy of this lesion was reported as a true 'glomus tumour', which is a benign lesion. Wide local excision was performed. The final histology of this specimen showed it to be a 'malignant glomus tumour'. Immunohistochemistry was positive for smooth muscle actin, collagen type IV, vimentin and cluster of differentiation 34 glycoprotein. Total laryngectomy was then performed as a definitive curative procedure. CONCLUSION:Glomus tumour is rarely found in visceral locations. This tumour and its malignant counterpart are rare differential diagnoses of laryngeal masses.
Authors: Jan Hrubý; Robert Novotný; Miroslav Spaček; Petr Mitáš; Jaroslav Hlubocký; David Janák; Ctibor Povýšil; Jaroslav Lindner Journal: Case Rep Vasc Med Date: 2013-09-25