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Schwannoma arising from the tympanic membrane is a rare neoplasm. This report describes an external ear canal mass obscuring the tympanic membrane. A transcanal approach identified a tumour adhered to the tympanic membrane. The tumour was excised without myringoplasty. Pathology confirmed the diagnosis of schwannoma. Clinical examination revealed no evidence of recurrence during a follow-up period of one year. The possible origins of schwannoma of the tympanic membrane and lesion management are also discussed.
Salivary duct carcinoma is a rare and invasive malignant tumour with rapid distant metastasis and dismal prognosis. Clinically, perineural invasion of the salivary duct carcinoma is commonly noted. Here, we present a case of salivary duct carcinoma of submandibular gland origin with perineural invasion of the trigeminal nerve proximal to the intracranium, that was well demonstrated by a magnetic resonance image (MRI) and was consistent with the clinical presentation. This case received radical resection and radiotherapy with inclusion of the skull base within the field. There was no tumour recurrence and distant metastasis 24 months post-operatively.
Successful restoration of phonation, as well as swallowing in laryngopharyngeal surgery for patients with advanced pyriform carcinoma still remains a major challenge. In a five-year period, near-total laryngectomy perations were performed on 21 patients with laryngopharyngeal carcinoma. This report particularly emphasizes the value of near-total laryngopharyngectomy with a pectoralis major myocutaneous flap for four extensive hypopharyngeal carcinoma cases (three of which were of pyriform origin). All four patients regained intelligible shunt speech and smooth swallowing. The follow-up period ranged from 19 to 44 months. They ave had no recurrence of disease since surgery.
The authors suggest that an advanced pyriform carcinoma case, with a normal contralateral hemilarynx and pyriform sinus, is a candidate for a near-total excision of the laryngopharynx.
To the best of our knowledge, this is the first report of external ear canal schwannoma in the English literature. Several detailed clinical and pathological features were demonstrated. We suggest that if a tender, encapsulated mass is found in the external ear canal, the diagnosis of schwannoma should be taken into consideration.
The authors describe a patient with a cervical cystic mass present for 14 years which proved to be a cystic metastasis from apapillary carcinoma of the thyroid gland. This is probably the first case report of a long-term lateral cervical cyst caused by an occult thyroid carcinoma.
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