Laryngomalacia, the most common congenital laryngeal anomaly, is not a single disease entity but rather a variety of entities along a spectrum of underlying pathophysiologies. Based on our study of 10 children who were surgically treated for laryngomalacia in an urban tertiary care center, we have developed a system of classifying laryngomalacia on the basis of its different underlying pathophysiologic processes. Type I laryngomalacia is characterized by a foreshortened or tight aryepiglottic fold. Type 2 disease is defined by the presence of redundant soft tissue in the supraglottis. The type 3 designation applies to cases caused by other etiologies, such as underlying neuromuscular disorders. While the three types are not mutually exclusive, each should be considered as a separate disease entity with a final common clinical presentation. Each type requires a specific approach to surgical repair.

https://journals.sagepub.com/doi/pdf/10.1177/014556130608500514

[salivary muco-epidermoid tumors (apropos of a case with laryngeal localization)].

Laryngomalacia: a classification system and surgical treatment strategy.

Mucoepidermoid carcinoma is the most common malignant tumor of salivary glands. However, it is a rare entity in larynx. Laryngeal cases are frequently misdiagnosed with other malignancies and they are under-reported. So, recognizing the clinical and histological features of this tumor is essential. Laryngeal mucoepidermoid carcinoma can arise in supraglottis, glottis and subglottis. Generally, it presents as a submucosal mass; therefore, progressive symptoms without any identifiable lesion in laryngoscopy must be well considered. The prognosis is somehow dependent on the histological features. In high-grade tumors, recurrence is more common and radical surgery with radiotherapy is recommended. In this paper, we provide a thorough literature review on mucoepidermoid carcinoma in the larynx. The most important distinguishing features of mucoepidermoid carcinoma and its two major differential diagnoses (squamous cell carcinoma and adenosquamous carcinoma) are clearly stated and pitfalls in true diagnosis of this tumor are discussed.

https://journals.sagepub.com/doi/pdf/10.4137/CPath.S8435

Clinical Features and Differential Diagnoses in Laryngeal Mucoepidermoid Carcinoma

Mucoepidermoid carcinoma of the subglottis is infrequently reported in the literature. This tumor subtype is more commonly associated with the major and minor salivary glands. Mucoepidertoid carcinoma of the larynx can be difficult to diagnose, and there is no consensus as to appropriate management. We report a case of a low-grade mucoepidermoid carcinoma that was confined to the subglottis and treated with organ-preservation surgery. A conservative surgical approach was taken because of the tumor's low-grade histology and its location and in order to preserve the patient's laryngeal function. At follow-up 15 months postoperatively, the patient remained disease-free, and laryngeal function was intact.

[salivary muco-epidermoid tumors (apropos of a case with laryngeal localization)].

Citations

Laryngomalacia: a classification system and surgical treatment strategy.

Clinical Features and Differential Diagnoses in Laryngeal Mucoepidermoid Carcinoma

Low-grade mucoepidermoid carcinoma of the subglottis treated with organ-preservation surgery.

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