results utilizing autologous stem cell populations to treat craniofacial defects is a promising field of ongoing investigations. studies show that cartilage stem/progenitor cells (cspcs) are highly chondrogenic and can produce elastic reconstructive material with long-term tissue restoration. conclusions auricular reconstruction surgery is a challenging plastic procedure that requires great exp...

We report five cases of duplicated external ear canal with especial attention to its histology and surgical care of facial nerve for their complete resection. These five patients were selected from 50 cases of first bronchial cleft anomalies including atretic external ear canals, preauricular fistula, cyst and sinuses. The characteristic histopathology and clinical features such as external ope...

BACKGROUND "Darwin's tubercle" is a term used to describe an atavistic swelling of the posterior helix that is present in some individuals. Little is known about its prevalence, characteristics, and function. With growing interest in the individuality of external ear patterns and its possible applications to personal identification, more knowledge about this tubercle is warranted. PURPOSE We ...

PURPOSE Aging causes changes in the external ear as a collapse of the external auditory canal and tympanic membrane senile. Knowing them is appropriate for the diagnosis of hearing loss and selection of hearing aids. For this reason, the study aimed to verify the influence of the anatomical changes of the external ear resonance in the auditory canal in the elderly. METHODS The sample consiste...

The pinna, or ex ternal ear, has been shown experim entally to perform an acoustical tran sfo r­ m ation essential to localization in hum an hearing. The m athem atical form of th e tran sfo rm a­ tion is given, the inverse to the transform ation is shown to exist, and a theory of localization constructed from the evidence. The theory is extended to reverberation and o ther facets of hum an hea...