Branchial cysts within the parotid salivary gland. (25/35)

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Papillary carcinoma of thyroid arising from ectopic thyroid tissue inside branchial cleft cyst: a rare case. (26/35)

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An infected branchial cyst complicated by retropharyngeal abscess, cervical osteomyelitis and atlanto-axial subluxation. (27/35)

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Primary branchiogenic carcinoma: report of a case and a review of the literature. (28/35)

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An immunohistochemical study of branchial cysts. (29/35)

Twenty five specimens of branchial cyst from the same number of patients have been examined. On staining with haematoxylin and eosin a consistent finding was that the mural lymphoid follicles were always aligned with their mantle zones towards the luminal epithelium. With conventional staining lymphatic sinuses were noted in 17 of the specimens, but with immunohistochemical staining these structures were apparent in 23 cysts. Their frequent occurrence in branchial cysts supports the theory that these lesions are derived from epithelial inclusions in lymph nodes. Immunohistochemical techniques for a range of other markers, using polyclonal and monoclonal antisera, showed a distribution of lymphoid and non-lymphoid tissue elements, as seen in lymph nodes and, for example, palatine tonsils. The lining luminal epithelium also shared many features in common with the crypt epithelium of tonsils.  (+info)

Synovial sarcoma of the neck masquerading as a malignant second branchial cleft cyst. (30/35)

Synovial sarcoma is an uncommon, aggressive malignant tumor of the soft tissues primarily involving the extremities of young adults. Head and neck synovial sarcoma is rare, and its diagnosis and therapy are still challenging.We report a case of a young patient with synovial sarcoma, clinically masquerading as cystic mass of the neck and malignant second branchial cleft cyst. The pathological diagnosis of the sarcoma was confirmed by a multimodality diagnostic protocol, including histological, immunohistochemical and molecular genetic analysis. The patient underwent complete surgical excision followed by postoperative radiotherapy and recovered well.  (+info)

Ultrasound evaluation of neck masses in children. (31/35)

Neck masses in children are a frequent occurrence and in some instances create a diagnostic dilemma for the clinician. The authors' two-year experience using ultrasonography in the evaluation of 34 children with neck masses is reviewed. Twenty-two patients had lesions arising outside the thyroid gland; 12 lesions arose from the thyroid gland. Ultrasonography proved to be an accurate imaging modality for localizing the mass and demonstrating its relationship to the thyroid gland, trachea, and major neck vessels. The borders and extent of the lesions were well outlined, as well as their internal consistency. Based on this review, the authors recommend that ultrasonography be the first screening procedure in pediatric patients who present with perplexing neck masses.  (+info)

Unusual presentations of branchial cysts: a trap for the unwary. (32/35)

Twenty-three cases of branchial cysts seen over 4 years are described. Only 11 patients presented with simple non-tender fluid swellings of the neck. Five patients presented with tender masses during infections and were diagnosed as acute abscesses. Seven patients presented with hard fixed masses mimicking lymphadenopathy. None of these were diagnosed correctly before surgery. Misdiagnosis led to significant morbidity from persistent cervical discharges. One patient had a partial nerve palsy. Infection of branchial cysts was common in this series and caused difficulties in diagnosis due to thickening of cysts walls following chronic inflammation in lymphoid tissue.  (+info)