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At least 541 records · Page 30Linked to original sources

[Secondary reconstruction of the external ear destroyed by burns. Indications and techniques. Apropos of 30 clinical cases].

Reconstruction of an ear destroyed by burns raises several difficulties related to the presence of associated lesions. The essential element determining the indication for reconstruction is the possibility to cover a three dimensional cartilaginous graft with skin. Depending on the local condition of the skin, retroauricular skin, a temporal fascia flap or preliminary expansion may be indicated. Reconstruction should be performed when the chances of obtaining a good result are sufficient in a motivated patient. If these conditions are not satisfied, prosthesis should be proposed.

Burns↗

External ear reconstruction with autogenous rib cartilage.

For more than 30 years, children born without an ear or with deformities have had their defects corrected by ear reconstruction with autogenous rib cartilage graft. Despite the common use of this procedure, total ear reconstruction continues to be one of the greatest challenges facing the reconstructive surgical team. In this article, plastic surgical nurses are provided crucial information regarding anatomy and physiology, assessment, the surgical procedure, and perioperative patient care.

Cartilage↗

[Keloid of the external ear].

Keloid formation is an unpredictable complication to normal scar tissue development. The etiology is unknown, although an individual predisposition may be present. There is a regional propensity for the head, neck and upper torso. The treatment is difficult, and this should be taken into consideration when cosmetic procedures are being contemplated. This type of surgery should be avoided in individuals with previous keloid formation. Four cases of keloid formation, two after ear lobe piercing and two after otoplasty are presented and a satisfying outcome of surgical revision with ensuing steroid medication is reported.

Adolescent↗

[Correction of the external ear using cartilage-sparing techniques].

OBJECTIVE: To establish the value of cartilage sparing suture techniques for correction of prominent ears. DESIGN: Retrospective study. LOCATION: Gooi-Noord Hospital, Blaricum, the Netherlands. METHOD: Between 1989 and 1992, 117 ears in 62 patients were corrected for prominence. Results were evaluated using the McDowell criteria for anatomy and localisation of the ear. RESULTS: Of 117 ears 108 were corrected successfully. A recurrence was seen in 6 ears and 3 ears showed overcorrection. Reoperation was needed in 2 ears. A suture was extruded in 15 ears, which could be treated relatively easily in 14. CONCLUSION: Cartilage sparing suture techniques for correction of the specific anatomic deformities of prominent ears prove to be successful. Suture extrusion was the most frequent, but minor, complication. Suture extrusion appears to be dependent upon suture material and localisation.

Adolescent↗

[Keratoacanthoma of the external ear].

Six hundred and seventy-eight keratoacanthomas were treated in Hornheide during the past 30 years. Nearly 10% (67) were located on the auricles. One patient suffered from two tumors. The records of 8 patients were lost. Fifty-two of the remaining 59 cases involved males and only 7 patients were female. There was a striking difference between the sex incidence of the patients with auricular tumors and the overall total of the keratoacanthomas, with a nearly equal involvement of both sexes in the latter. The growth time of lesions before treatment was mostly defined in weeks or even days. The prevalence increased with age and only 2 patients were younger than 50 years. Therapy depended on growth stage, tumor diameter and localization. Therapeutic measurements ranged from excessive surgical treatment to no treatment. In practise, special dermato-oncologic experience is necessary for making any decisions concerning the best method of treatment.

Adult↗

[Value of tissue expansion in total reconstruction of the external ear].

By recalling the imperatives of auricular reconstruction, the author analyses the indications for tissue expansion in this area. This expansion can be performed preoperatively or intraoperatively, directly on the ear, indirectly, away from the ear. In the light of his experience, illustrated by three clinical cases, the author considers preoperative indirect expansion to be the most useful, by placing the expander underneath the scalp.

Adult↗

Electrophysiologic and behavioral studies of the cutaneous nerves of the concave surface of the pinna and the external ear canal of the dog.

The investigation used 2 methods to study the cutaneous innervation of the concave surface of the pinna of the dog: electrophysiologic and behavioral. The cutaneous innervation of the external ear canal was studied, using electrophysiologic methods. On one side of each dog, the area of remaining sensitivity for the 3 internal auricular branches of the facial nerve (InAuB-FN) was determined by sectioning the rostral auricular nerve, dorsal cutaneous branch of the second cervical nerve, and great auricular nerve and then examining the dogs 1 week later. The cutaneous area (CA) of each branch of the InAuB-FN was then determined electrophysiologically. These individual CA were combined to obtain a composite cutaneous area (Comp-CA) for the InAuB-FN. By comparing the Comp-CA with the area of remaining sensitivity, it was determined that they defined essentially the same regions. On the opposite side of each dog, the InAuB-FN were surgically transected and the resultant areas of anesthesia were determined approximately 1 week after the sectioning was done. The cutaneous region thus delineated represented a zone solely innervated by these branches of the FN. Next, the CA for the rostral auricular nerve, dorsal cutaneous branch of the second cervical nerve, and great auricular nerve to the pinna's concave surface were determined electrophysiologically in each dog. The cutaneous zone enclosed by the margins of the CA of these 3 nerves represented the composite autonomous zone for the InAuB-FN. The behaviorally determined area of anesthesia was essentially the same area as the composite autonomous zone. The skin lining the vertical portion of the external ear canal was supplied by all 3 branches of the InAuB-FN. The skin lining the horizontal portion of the external ear canal was supplied by the lateral branch of the InAuB-FN and the external acoustic meatus branch of the auriculotemporal nerve.

Animals↗

Carcinoma of the external ear.

An analysis of 246 operated patients with 260 carcinomas of the external ears from the periods 1949-57 and 1962-67 is presented. Carcinoma of the external ear occurs in Denmark with a frequency of 1.2 cases per 100 000 inhabitants and constitutes approximately 6% of all skin cancers. In the present material 67% of the tumours were squamous-cell carcinomas and 30% were basal-cell carcinomas. These forms of tumours were most frequent in elderly men who have had outdoor employment. Half of these tumours were sited on the helix and lobe, while one quarter, respectively, were sited medially and laterally. 15% of the squamous-cell carcinomas recurred, 3% of the these with metastases of the regional lymph nodes. Of the basal-cell carcinomas 18% recurred but with no metastases of the regional lymph nodes. The frequency of recurrence did not depend on the site of the tumour on the ear, but it did increase with increasing tumour size. The 5-year survival rate without recurrence was 56% +/- 4% for the squamous-cell carcinomas, and for the basal-cell carcinomas 59% +/- 6.5%. It is concluded that surgical treatment is best suited for these tumours, and the minimum excision distance for basal-cell carcinomas of less than 3 cm in size should be 8 mm, while for squamous-cell carcinomas of the same size the distance should be 10 mm. For both forms of tumour where the greatest extent is more than 3 cm the excision distance should be at least 15 mm.

Basal Cell Carcinoma↗

Unilateral duplication of the cerebellar hemisphere and internal, middle, and external ear: a clinical case study.

This article presents the unique congenital anomaly complex of ipsilateral cerebellar hemisphere duplication and internal, middle, and external ear duplication. Diagnostic techniques included a head CT scan, a three-dimensional head CT scan, and a head MRI. An aberrant notochordal split was proposed as the embryologic mechanism leading to the development of such anomalies.

Abnormalities, Multiple↗

Extension of nasopharyngeal lymphoma to the middle and external ear.

We describe a patient with nasopharyngeal lymphoma who was admitted for chemotherapy. At admission, otoscopic examination revealed a large polyp occluding the left external ear canal. The polyp was removed, and histopathologic examination showed the same tumor that was found previously in the nasopharynx. Magnetic resonance imaging showed an infiltrative process that involved the left side of the nasopharynx and extended toward the left middle and external ear. To our knowledge, this is the first case report of a direct extension of nasopharyngeal lymphoma into the middle and external ear.

Ear Canal↗