Abstract
Laryngeal adult-type hemangiomas are very rare lesions, more frequent in men, whose optimal treatment consists of microlaryngoscopical excision. We herein report a case of larynx cavernous hemangioma in a 64-year-old woman with hoarseness for about six months. Histologically, the tumor was composed of multiple vessels embedded in an edematous stroma.
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Introduction
According to the 2017 World Health Organization (WHO) Classification of Head and Neck Tumors, epithelial tumors are the most frequent laryngeal neoplasms [1]. Non-epithelial lesions are much rarer [2] and include entities such as chondrosarcoma, Kaposi sarcoma, synovial sarcoma, granular cell tumor, myofibroblastic sarcoma, schwannoma, chondroma, ossifying fibromyxoid tumor and hemangioma [3]. Particularly, laryngeal hemangiomas are typically classified into adult and juvenile forms. Adult ones are very rare with only 6 cases reported in literature to date, occurring more frequently in men and in the histological form of cavernous hemangioma [4, 5] (Table 1). The most common involved sites are epiglottis, aryepiglottic folds, arytenoids and false and true vocal cords [6]. We herein describe the seventh case of vocal cord cavernous hemangioma in a 64-year-old woman.
Case Report
A 64 years old female presented to the “E.N.T. Section” of University Polyclinic of Catania with a history of hoarseness for about six months. The patient reported no history for neoplastic diseases nor smoking habit. Direct laryngoscopic examination showed a supracordal reddish nodular mass without ulceration of the overlying mucosa, of about 4 cm in its maximum diameter (Fig. 1). The lesion was excised using a microlaryngoscopic approach. Gross examination of surgical specimen revealed a nodular mass, soft in consistency; the cut surface of the mass showed a whitish neoplasm with multiple brownish spots. Histologically, at low magnification, the tumor consisted of a proliferation of vascular structures embedded in an edematous stroma (Fig. 2). At higher magnification, vessels were variable in size and lined by endothelial cells; vascular wall thickness was also variable, ranging from thick-walled vessels to thin-walled capillary-like ones (Fig. 2-insert).
Smooth muscle bundles embedded within the edematous matrix were also found. Necrosis, mitoses, and nuclear pleomorphism were absent. Immunohistochemically, the endothelial cells were positive for ERG, CD31 and CD34. Based on both morphological and immunohistochemical features the diagnosis of cavernous hemangioma of vocal cord was rendered.
Discussion
Laryngeal hemangiomas are typically classified into adult and juvenile forms [4, 5]. The formers are quite uncommon and often associated to smoking [1]. In our case, patient had no history of cigarette smoking, alcohol abuse or chronic traumatism from prolonged intubation. Hemangiomas are the most frequent benign vascular tumors of soft tissues. Histologically, in this specific anatomic site capillary and cavernous forms of hemangiomas may be encountered [7,8,9]. Cavernous hemangiomas are more frequent and characterized by thin-walled vascular spaces, larger than the capillary type. A variable proportion of fat tissue or smooth muscle bundles mixed with vascular proliferation may be found. The clinical presentation consists of phonation disorders or obstructive symptoms, largely depending on the size of the lesion. There are no standardized protocols for vocal cord hemangiomas [9]. The treatment choice of these lesions is affected by the size and age of the patient [8]; adult forms, while not regressing spontaneously, show no tendency to malignant transformation. Accordingly, these patients should only undergo follow-up until bleeding or difficulty breathing occur [10]. Microlaryngoscopical excision is used for treatment. The site causes a difficulty in the complete excision of the neoplasm with a greater risk of recurrence and resumption of the symptoms over time; in addition, vocal fold scar caused by the removal of the tumor may result in dysphonia. The use of CO2-laser therapy could be considered in small lesions as it reduces the risk of bleeding [11]; however, using this treatment, we cannot obtain useful material for histological examination.
More invasive treatments, such as thyrotomy, lateral pharyngotomy and transient tracheotomy, can be performed when dealing with larger lesions, which are more likely to be at risk of bleeding during minimally invasive procedures. Steroids and radiation therapy can also be used in case of large-sized tumors to improve obstructive symptoms, but often the results obtained are transient [8, 9].
The present paper emphasizes the concept that hemangioma, especially in the adult form, is an unusual but existing laryngeal neoplasm; accordingly, due to its benign clinical behaviour and its different management compared to the most common epithelial neoplasms, it should be always included in the clinical and histopathological differential diagnosis of laryngeal masses.
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All authors contributed to the study conception and design. The first draft of the manuscript was written by Eliana Piombino and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Piombino, E., Broggi, G., Grillo, C. et al. Vocal Cord Hemangioma: A Common Tumor in an Unusual Localization. A Case Report with Short Review of Literature. Indian J Otolaryngol Head Neck Surg 74 (Suppl 3), 5108–5110 (2022). https://doi.org/10.1007/s12070-021-02895-0
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DOI: https://doi.org/10.1007/s12070-021-02895-0