نتایج جستجو برای: branchial
تعداد نتایج: 2774 فیلتر نتایج به سال:
Numerous human syndromes are the result of abnormal cranial neural crest development. One group of such defects, referred to as CATCH-22 (cardiac defects, abnormal facies, thymic hypoplasia, cleft palate, hypocalcemia, associated with chromosome 22 microdeletion) syndrome, exhibit craniofacial and cardiac defects resulting from abnormal development of the third and fourth neural crest-derived b...
During development, cranial motor neurons extend their axons along distinct pathways into the periphery. For example, branchiomotor axons extend dorsally to leave the hindbrain via large dorsal exit points. They then grow in association with sensory ganglia, to their targets, the muscles of the branchial arches. We have investigated the possibility that pathway tissues might secrete diffusible ...
Although branchial cleft cysts are common, papillary carcinomas arising from them are rare. Here we report a 41-year-old woman with papillary carcinoma originating from a right lateral branchial cleft cyst without any evidence of a papillary carcinoma in the thyroid gland. The patient underwent right lateral neck dissection followed by total thyroidectomy. We then confirmed papillary carcinoma ...
abstract in this study we present successful management of an inflamed branchial cyst by stripping the inner lining thus providing a safe and definitive treatment. we believe that this is the first report of this technique in the literature.
Branchial cleft cysts are congenital anomalies that most commonly arise from a failure of fusion the second branchial arch during embryonic life. They usually present as swelling in lateral side neck, below mandible. In this article, we case 28-year-old female patient with right cyst measuring 7 × 6 5 cm, who presented an asymptomatic, rapidly growing mass anterior triangle neck abutted externa...
Cells of the cranial paraxial mesoderm give rise to parts of the skull and muscles of the head. Some mesoderm cells migrate from locations close to the hindbrain into the branchial arches where they undergo muscle differentiation. We have characterised these migratory pathways in chick embryos either by DiI-labelling cells before migration or by grafting quail cranial paraxial mesoderm orthotop...
Branchial cleft anomalies are congenital developmental defects that typically present as a soft fluctuant mass or fistulous tract along the anterior border of the sternocleidomastoid muscle. However, branchial anomalies can manifest atypically, presenting diagnostic and therapeutic challenges. Error or delay in diagnosis can lead to complications, recurrences, and even life-threatening emergenc...
Second branchial cleft cysts are the most common type of branchial abnormalities and usually found high in the neck. Oropharyngeal presence of branchial cleft cyst is very rare. We report a case of oropharyngeal branchial cleft cyst in 2-yr-old girl with about 1 x 1 cm sized cystic mass, which had not any specific symptom. It was removed completely under impression of mucocele and did not have ...
Introduction:Most metastatic lymph nodes from head and neck malignancy are solid. Cystic nodes are found in 33% - 61% of carcinomas arise from Waldeyer’s ring, of which only 1.8% - 8% originate are from the nasopharynx. Some cystic cervical metastases were initially presumed to be branchial cleft cyst. This case report aims to highlight the unusual presentation of cystic cervical metastasis sec...
Background Even though branchial cleft cysts are currently accepted as a congenital anomaly, there is often a long delay until clinical presentation; branchial cleft cysts classically appear in the second to fourth decade of life. Our observation of their occurrence in three pregnant women encouraged us to contemplate a possible hormonal influence. Methods Immunohistological analysis was perf...
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