Transmission electron microscopy can aid in the definitive pathological diagnosis of laryngeal cavernous lymphangioma when distinguishing lymphatic from blood vessels is difficult.
May aid definitive laryngeal lymphangioma diagnosis when vessel distinction is unclear; extends sparse case evidence but leaves routine use open.
A 58-year-old woman complained of a foreign body sensation and slight dyspnea when lying on her left side. Laryngoscopic examination revealed a dark purple mass in the right aryepiglottic fold of the larynx.Fiberoscopy and CT and MR examinations led to a clinical diagnosis of probable a hemangioma of the larynx.Our surgical approach was suprahyoid pharyngotomy and tumor resection. Since it was very difficult to distinguish blood vessels from lymphatic vessels entering the tumor, we used a transmission electromicroscope (TEM) for our pathological examination.The final diagnosis was cavernous lymphangioma.
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Ishimoto et al. (1994) studied this question.
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