نتایج جستجو برای: neck neoplasms
تعداد نتایج: 557838 فیلتر نتایج به سال:
INTRODUCTION Schwannomas are benign neoplasms of the peripheral nerves originating in the Schwann cells which occur in the head and neck region only in 25% of cases. Primary non epithelial tumours of the thyroid gland are rare. Schwannoma of the thyroid is extremely rare. Only 19 cases have been described in English literature [1-6]. A case of schwannoma of thyroid gland which simulated a thyro...
Sarcomas account for less than 1% of malignant neoplasms arising in the head and neck in adults. Laryngeal synovial sarcoma is an extremely rare form of laryngeal malignancy with less than 20 cases reported in the literature. We report the case of a 48-year-old man with synovial sarcoma of the larynx. He underwent excision of the tumor followed by radiation. He is alive in remission at 36 month...
Primary thyroid lymphomas (PTLs) are rare neoplasms which in the past have been classified by various schemes. Clinicopathological findings of two cases which were diagnosed in the past one year in our institute are presented using the Revised European and American classification (REAL) for lymphomas. Both cases presented as enlarging neck masses in elderly female patients, in association with ...
Schwannomas are benign neoplasms originating from the neural sheath and occurring most often in the soft tissues of the head and neck. Intraosseous schwannomas, however, are rare. The most common site of occurrence for these unusual lesions is the mandible. This article documents a case of an intramandibular schwannoma and provides a review of the literature on intraosseous schwannomas, with sp...
Inflammatory pseudotumor is a rare non-neoplastic mass that may clinically and radiologically mimic a spectrum of benign and malignant neoplasms. It is uncommon in the head and neck and particularly rare at the skull base. We present a case of pseudotumor originating from the trigeminal nerve in a patient who presented with headache and facial numbness. A high index of suspicion is necessary to...
Sir Angiosarcomas (AS) are rare malignant neoplasms of mesenchymal origin that exhibit vascular di¡erentiation. They mainly a¡ect adult men. They account for approximately 1% of all sarcomas and 35% primarily a¡ect the skin, usually on the head and neck (1). Ten percent of angiosarcomas develop in chronic lymphoedema (2). Some are associated with lymphoedema due to conditions such as trauma, co...
Plasma cell tumors are a diverse group of neoplasms characterized by monoclonal proliferation of plasma cells. Extramedullary plasmacytoma (EMP) is a rare form of localized plasma cell tumor that arises most often in the head and neck region. We present an unusual case of EMP of the palatine tonsil from a tertiary care university hospital. We discuss the histopathologic and radiologic evaluatio...
Neuroendocrine tumors of the larynx are rarely seen neoplasms. Atypical carcinoid tumor is the most common type of the neuroendocrine tumors of the larynx, whereas the typical carcinoid tumor is the most infrequent type. Preferable treatment in typical carcinoid tumor is particularly conservative surgery without neck dissection. Radio-chemotherapy is ineffective. In this report, we present a 61...
Cranial nerve schwannomas are not uncommon intracranial tumors. Schwannomas arising from cranial nerve XI not only comprise a minority of these neoplasms but may also involve the extracranial segment of the spinal accessory nerve. The clinical presentation of cranial nerve XI schwannomas relates to their location and extent: intracranial, jugular foramen, upper neck, or cervical spine. This rep...
Plasma cell neoplasms of the head and neck region can be extramedullary plasmacytoma of the bone, solitary plasmacytoma of the bone, and local manifestations of multiple myeloma. A 70-year-old male patient was admitted to our hospital with diplopia of four-day history. Magnetic resonance imaging showed soft tissue in the sphenoid sinus. Endoscopic biopsy was taken from the sphenoid sinus, which...
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