OBJECTIVE To evaluate the effectiveness of endoscopic cauterization as definitive treatment for fourth branchial cleft sinuses. DESIGN Retrospective chart review with follow-up questionnaire. SETTING Tertiary care children's hospital. PATIENTS Ten children (age range, 10 months to 10 years) with fourth branchial cleft sinuses treated with endoscopic cauterization between 1995 and 2002. ...

Hindbrain neural crest cells adjacent to rhombomeres 2 (r2), r4 and r6 migrate in a segmental pattern, toward the first, second and third branchial arches, respectively. Although all rhombomeres generate neural crest cells, those arising from r3 and r5 deviate rostrally and caudally (J. Sechrist, G. Serbedzija, T. Scherson, S. Fraser and M. Bronner-Fraser (1993) Development 118, 691-703). We ha...

This report presents a rare case of multiple accessory tragi, which developed at an unusual site outside derivative branchial arch, in this the nose. Thus far, to our knowledge is 4th reported ofsimilar nature world. significantin that, first with tragus present along midline dorsum

OBJECTIVE This study describes the presentation of first branchial cleft anomalies and compares outcomes of first branchial cleft with other branchial cleft anomalies with attention to otologic findings. STUDY DESIGN Case series with chart review. SETTING Pediatric tertiary care facility. METHODS Surgical databases were queried to identify children with branchial cleft anomalies. Descript...

In this paper we investigate a new notion of bases in Hilbert spaces and similar to fusion frame theory we introduce fusion bases theory in Hilbert spaces. We also introduce a new denition of fusion dual sequence associated with a fusion basis and show that the operators of a fusion dual sequence are continuous projections. Next we dene the fusion biorthogonal sequence, Bessel fusion basis, Hil...

We examined the temporospatial pattern of naturally occurring apoptosis in chick embryos to five days of incubation (H.H. stages 1-25; Hamburger and Hamilton, 1951) using TUNEL labeling. The initial TUNEL-positive structure was the embryonic shield at stage 1. Apoptotic cells became ubiquitously present within embryos by stage 3, which is early in gastrulation. Until stage 6, TUNEL-positive cel...

The thyroid develops from the endoderm in the floor of the pharynx and migrates downwards, anterior to the primitive gut. Faults in the process cause thyroglossal cyst and fistula and the presence of thyroid tissue in abnormal situations, such as the posterior part of the tongue and retrosternally. In mammals the thyroid also contains cells derived from the last branchial pouches, the parafolli...