• 대한두경부종양학회지
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• 제21권1호
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• pp.53-56
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• 2005

The branchial anomaly is a lateral neck mass commonly seen by otolaryngologists. Depending on its anatomic location, branchial anomaly can be classified into first, second, third and fourth. The fourth branchial cleft anomaly is very rare entity and until now, only 35cases have been reported worldwide. It may present as neck cyst, recurrent neck abscess, thyroiditis. Combined with barium swallow esophagogram and computed tomography scan can aid in diagnosis of this rare disease entity. Complete excision of the entire epithelial tract combined with ipsilateral thyroid lobectomy remains the mainstay of treatment. Authors experienced a case of lateral neck mass which was anatomically presumed to be the fourth branchial cleft cyst. We report this case with the related literature.

• 대한두개안면성형외과학회지
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• 제20권3호
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• pp.191-194
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• 2019

In branchial lymphoepithelial cyst (BLEC), which is also known as branchial cleft cyst, the remnants of a branchial arch develop into a cyst, causing swelling. The first case of BLEC in the parotid gland was reported by Hildebrant in 1895. Since then, BLEC in the parotid gland has continued to be reported, but in rare cases. A 45-year-old man presented to our hospital with a swelling of the left cheek of approximately 6 months' duration. The patient underwent a superficial parotidectomy and was pathologically diagnosed with BLEC. Of note, this was the first case of non-human immunodeficiency virus (HIV)-related BLEC of the parotid gland in South Korea. BLEC is a benign condition, but its treatment depends on the presence of HIV infection. In HIV-negative patients, BLEC does not require a further work-up to evaluate metastasis. Our case report describes the diagnosis and treatment of BLEC in a patient without HIV.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제14권3호
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• pp.207-216
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• 1992

The congenital condition referred as hemifacial microsomia is characterized by underdevelopment, malformation or abscence of certain soft and hard tissue derivatives of the first and second branchial arches and open also of structures which are not derived from the branchial arches, such as the zygoma, temporal bone. This is a report about a 14 years old male patient with the chief complaint of severe facial asymmetry, who was diagnosed as hemifacial microsomia having agenesis of the right mandibular condyle and zygomatic arch. Deformities and rib bone graft on the affected mandibular condyle and body, and LeFort I osteotomy in the maxilla. To correct contour-deficient chin, we performed the genioplasty, and the zygomatic arch was reconstructed with rib bone graft.

• 대한두경부종양학회지
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• 제26권1호
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• pp.45-47
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• 2010

Accessory tragus is an uncommon congenital anomaly of the external ear. The tragus derives from the first branchial arch. The accessory tragus can be found along the entire course of embryonic migration. Usually it appears as a small papules arising near the tragus, but rarely, along an imaginary line drawn back from the tragus to the angle of the mouth, or along the anterior edge of the sternocleidomastoid muscle and the sternoclavicular region. We experienced a case of accessory tragi on the suprasternal region in an 9 year-old-boy.

• 대한기관식도과학회지
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• 제2권2호
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• pp.285-289
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• 1996

The styloid process is normally a small, slender, pointed, downward and forward projection of the temporal bone. It is developed from the ossification of the Reichert's cartilage of the second branchial arch. In the adult, It is about 2.5cm in length and lies between the internal and external carotid arteries and lateral to the tonsillar fossa. Elongation of the styloid process , ossification of the stylohyoid or slylomandibular ligament causes recurrent nonspecific throat discomfort, foreign-body sensation, dysphagia, referred otalgia or facial pain. Symptoms are provoked by swallowing, turning head, carotid compression, and posttonsillectomy. Recently, the authors have experienced two cases of Eagle's syndrome. So we report them with review of literature.

• 한국어류학회지
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• 제17권1호
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• pp.19-28
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• 2005

줄납자루, Acheilognathus yamatsutae (Cyprinidae)의 골격형성과 연골의 골화 과정에 대하여 연구한 결과는 다음과 같다. 전장 $6.82{\pm}0.08mm$ 에 부설골 (parasphenoid), 치골 (dentary), 익상골 (pterygoid), 각설골 (ceratohyal), 새궁(branchial arch) 등과 미골 (caudal skeleton)의 일부 등이 생성되었다. $7.76{\pm}0.09mm$에는 전두골 (frontal)과 두정골 (parietal)의 발달이 현저하였고, 주상악골 (maxillary)이 나타났으며, 흉대 (pectoral girdle)의 방사기골(proximal), 견갑골 (scapula), 오훼골 (coracoid)이 형성되었다. 또한 신경극 (neural spine)과 혈관극 (hemal spine)이 미추(caudal vertebrae)에 생성되기 시작하였다. $9.68{\pm}0.14mm$에 내장골 (vesceral skeleton)의 주새개골(opercle)과 새조골 (branchiostegals)이 나타났으며, 12.94 mm에는 흉대의 후측두골 (post temporal)이 생성되었다. 골격의 골화는 $9.68{\pm}0.14mm$를 전후하여 일어났으며, 부설골, 인두골 (pharyngeal bone), 치골, 전상악골(premaxillary), 주상악골, 주새개골 등과 늑골 (pleural rib), 신경극, 혈관극이 골화되었으며, 흉대의 의쇄골(cleithrum)과 상의쇄골 (supracleithrum) 그리고 미골의 미부봉상골 (urostyle)과 꼬리지느러미 (caudal fin)가 골화되었다. $11.52{\pm}0.13mm$에는 척추골이 생성되면서 골화되었고, $15.30{\pm}0.68mm$에 두부의 전두골, 전새개골(preopercle), 하새개골 (subopercle), 설악골 (hyomandibular)등이 경골화되었다. 본 종의 골격 형성과 골화는 다른 어종에 비하여 비교적 늦게 발달하였다.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제16권3호
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• pp.348-355
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• 1994

Styloid process is a slender pointed bone of variable length, which project downward, forward, and slightly medialward from the posteroinferior portion of the tympanic part of the temporal bone. Embryologically, the styloid process is derived from Reichert's cartilage, a structure of second branchial arch origin. Most patients with elongated styloid process remain asymptomatic, but some patients complain pain and sensation of foreign body in the throat, dysphagia, dysphonia, referred otalgia. Recently, we have experienced a case of elongated styloid process in a fifty-nine year old man. He had been suffered from Rt. side sore throat, headache and pharyngeal discomfort during head movement. Through various X-ray examination, Xeroradiography, and palpation of tonsillar fossa, elongated styloid process on Rt. side was confirmed. Under the general anesthesia, it was successfully removed out via transoral approach technique, described by Eagle. The resected styloid process was 2.5cm in it's length and he was freed from the symptoms without further complication.

• Journal of Chest Surgery
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• 제29권9호
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• pp.1023-1027
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• 1996

경동맥체 종양(carotid body tumor)은 총경동맥 분지부에 위치한 경동맥체 즉 화학 수용기에서 발생하는 종양으로서 그 발생빈도가 드물다. 이 경동맥 체의 기능은 혈액내 화학조성에 의해 호흡,혈압, 맥박수의 반사조절이 이루어지는 것으로 알려져 있다. 조직학적으로 대부분 주세포(chiefcell)로 구성되어 있고 대부분 피막에 쌓여 있으며 분엽성, 압축성으로 서서히 자라나중에 경부혈관을 둘러싸 압박하게되며 그 이외 다른 혈관이나 신경을 누르게 된다. 경동맥체의 치료방법은 수술적 절제, 방사선 조사, 색 전술등이 알려져 있으며 이중 외과적 절제가 대표적인 치료 방법으로 알려져 있다. 하지만 외과적 절제가 쉽지 않고수술중비교적 높은 이병율과뇌혈류 부전으로 인한 반측마비등의 후유증을 유발할 수 있기 때문에 고도의 주의를 요한다. 저자들은 경동맥 체종양으로 진단받고 절제수술을 받은 2례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Toxicological Research
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• 제14권3호
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• pp.357-363
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• 1998

The teratogenic potential of the anticonvulsant drug phenytoin (PHT) has been well documented both in the human and in the experimental animals. However there are few reports on the effects of PHT on embryonic development in rats in vitro. The present study was performed to evaluate the teratogenic effects of PHT using whole-embryo culture system in rats. Sprague-Dawley rat embryos were explanted on gestational day (GD) 9.5 and cultured for 48 hrs in the immediately centrifuged and heat-inactivated rat serum containing 0,25,50, or $100{\mu}g$ PHT/mL. At the end of culture period the embryos were scored for morphological development according to the procedure of Van Maele-Fabry, and their total protein contents were determined. At 100 ${\mu}$g/mL of culture medium. PHT caused significant reduction in developmental score and protein content of embryos and a high incidence morphological abnormalities (100%). Characteristic malformations included altered yolk and embryonic circulation, craniofacial hypoplasia, neural tube schisis, branchial arch defects, abnormal ratation, and limb bud hypoplasia, among others. There were no adverse effects on embryonic growth and development at concentrations of 25 and 50 ${\mu}$g /mL of culture medium. The results indicated that the dysmorphogenic effect of PHT on cultured embryos is due to a direct interference with embryonic development.

• 대한구순구개열학회지
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• 제12권2호
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• pp.47-56
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• 2009

The orbicularis oris muscle (OOM) is a very important muscle that originate from the second branchial arch and is innervated by the facial nerve. The aim of this study was to elucidate distribution types of two muscle fibers that composing OOM by using enzyme-histochemical examinations and tried to make a basis for a clinical application. The fresh frozen tissues from the superior and inferior portions of the OOM were taken from post mortem 65-year-old Korean male adult. Total five different sagittal sections were used on the midline of the philtrum, the middle portion of lower lip, the mouth corner, and each midlateral side of upper and lower mouth. We used enzyme-histochemical staining such as Periodic Acid-Schiff (PAS), Succinic Dehydrogenase (SDHase), reduced Nicotinamide Adenine Dinucleotide-Tetrazolium Reductase (NADH-TR), Adenosine Triphosphatase (ATPase) in pH 9.4, 4.6 and 4.3, and Modified Gomori Trichrome. There were about 30.24 % type 1 muscle fiber and 65.40 % type 2 muscle fiber in the midline of the philtrum (p < 0.05). Enzyme-histochemical staining is very useful and innovative method to elucidate characteristics of muscle fibers. We expect that chiloplasty and reconstruction of the lip portions for cleft lip patients, based on these results, are better to recovery function and aesthetic. However, we have some problems as an intramuscular variability and the inter-individual variation etc. Therefore we have to make progress these studies continuously to overcome these problems.