1/18. Retroauricular flap: its clinical application and safety.We report the application and safety of the retroauricular flap in 38 cases. The flap was used on the anterior auricular surface in 21 cases, in the peri-auricular region in five cases, in the region of the preauricular sideburn area in two cases, in the malar region in six cases, in the eyelid in three cases and in the intraorbital region in one case. When this flap was used in the auricular or periauricular region, the blood circulation was safe and the appearance was aesthetically good in flaps pedicled by the postauricular vessels or by the superficial temporal vessels. However, when the defect was more remote from the auricle, the blood circulation of the flaps pedicled by superficial temporal vessels, whether subcutaneous pedicle flaps or free flaps, was unstable. In some cases there was extensive or partial necrosis of the distal area of the flap. On the other hand, the free flaps pedicled by the postauricular vessels had satisfactory blood circulation, but the vessels were sometimes short, narrow and difficult to find, especially the veins. In these cases, we were obliged to use the superficial temporal vessels. A further problem is that some of the patients, especially younger women, were dissatisfied when the retroauricular flap was used in the malar region because of the reddish colour of the flap.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/18. endolymphatic sac tumor associated with a von hippel-lindau disease patient: an immunohistochemical study.The authors report a case of endolymphatic sac tumor (ELST) associated with von hippel-lindau disease (VHL). A 20-year-old female VHL patient received a resection of a cerebellar hemangioblastoma 3 years ago and she had a co-existing of left petrous tumor. The petrous tumor showed a remarkable progression in 3 years and was resected subtotally. Histologically, the resected petrous tumor showed a papillary structure containing cuboidal or columnar cells with fibrous stroma and numerous microvessels and destructed temporal bone, all of which are consistent with ELST. We studied the expression of various kinds of cytokeratins (CKs) immunohistochemically and found distinct expression of CKs (CAM 5.2, 34betaE-12, CK7, CK8 and CK19), but not for CK10/13 or CK20. Vascular endothelial growth factor and neuron specific enolase showed strong immunoreactivity in the tumor cells. CD34 also had weak expression. ki-67 antigen (MIB-1) immunoreactivity was found in focal areas, and the labeling index in the highest-density area was 48.9%. These findings suggest that vascular endothelial growth factor overexpression is an important factor for angiogenesis in ELST, much like other VHL-associated tumors, and that ELST may have a more highly aggressive component than the low-grade malignancy noted in previous reports.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
3/18. pneumocystis carinii infection in bilateral aural polyps in a human immunodeficiency virus-positive patient.pneumocystis carinii is an opportunistic infection found in patients with impaired immunity. Under favourable conditions the parasite can spread via the blood stream or lymphatic vessels and cause extrapulmonary dissemination. We report a case of P carinii infection presenting as bilateral aural polyps, otitis media and mastoiditis in human immunodeficiency (hiv)-positive patient with no history of prior or concomitant P carinii infection.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
4/18. Auricle angioleiomyoma.Angioleiomyomas are subcutaneous benign tumors composed of numerous blood vessels with disoriented and hyperplasic smooth muscle layers. The incidence in female is higher than in male, with a ratio of 1.7 to 1.0. They are usually located at the lower extremities and rarely located at head and neck region. The case we report is a 66-year old male patient. The chief complaint was a brownish tumor over helix of left auricle with progressive enlargement noted for three years. physical examination revealed an elastic, non-tender nodular lesion 15 x 15 x 6 mm in size and ovoid in shape. No other similar lesion was found on his face, neck and extremities. The tumor was excised entirely with clear margins. The diagnosis was angioleiomyoma via histology.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
5/18. Surgical treatment of endolymphatic sac tumor with adjunctive stereotactic radiation therapy--case report.A 44-year-old man presented with an endolymphatic sac tumor (ELST) associated with von hippel-lindau disease, which required four surgical procedures within 10 years. The earlier two surgeries resulted in only partial removal of the tumor because of vigorous intraoperative bleeding. Stereotactic radiation therapy was performed twice. The intraoperative bleeding was easy to control in the third operation, and ultimately the tumor was totally extirpated in the fourth operation. Histological examination of the tumor specimen harvested in the final surgery showed that the tumor cells had clearly decreased in number, and the interstitial tissue had become fibrous with organization of the tumor vessels, compared with the tumor specimen from the first surgery. Preoperative radiotherapy may be effective to reduce the devastating intraoperative bleeding of ELST.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
6/18. Angiofibrolipoma of the ear canal.OBJECTIVES/HYPOTHESIS: Described is the first reported case of an angiofibrolipoma of the ear canal in a patient who presented with right-sided conductive hearing loss and a medial canal stenosis. STUDY DESIGN: Case report. RESULTS/CONCLUSION: This variant of lipoma contains mature adipocytes, blood vessels, and dense collagenous tissue. The physical examination can be misleading, and the diagnosis requires histopathological examination. The patient was treated with complete surgical excision, tympanoplasty, canalplasty, and skin grafting to the external auditory canal. His pure-tone average improved from 37 to 11 dB, and his air-bone gap was closed completely.The lipoma has not recurred in the 6-month period following surgery.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
7/18. angiolymphoid hyperplasia with eosinophilia associated with pregnancy: a case report and review of the literature.A case of angiolymphoid hyperplasia with eosinophilia (ALH) is reported in a 33-year-old woman who developed an auricular nodule during the second trimester of her pregnancy. angiolymphoid hyperplasia with eosinophilia usually occurs on the head and neck of young adults and is more common in women than in men. Characteristic histologic features of ALH present in this case included proliferation of thick-walled blood vessels lined by prominent endothelial cells, infiltration of the interstitium by chronic inflammatory cells (mainly eosinophils), and presence of lymphoid follicles with germinal centers. The auricular tumor was completely excised. Thirteen months after excision, the patient remains tumor free. Although there are not many case reports on ALH during pregnancy or involving use of oral contraceptive pills, sex hormones may play a role in the pathogenesis of ALH. This hypothesis, in the context of cases previously described in the literature, and the differential diagnosis of ALH are discussed.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
8/18. Capillary hemangioma of the tympanic membrane.We report a case of capillary hemangioma of the tympanic membrane in a 51-year-old man with conductive hearing loss, otalgia, and otorrhea. On examination, the external auditory canal was obstructed with a hard, dark red tumor, and purulent discharge was observed. The infection was controlled with antibiotics, but hearing loss persisted. Therefore, transcanal resection was performed. The tumor was attached to the postero-superior quadrant, and arose from the lamina propria. Histologically, the tumor was composed of multiple capillary-sized vessels surrounded by fibrous connective tissue and diagnosed as capillary hemangioma. After surgical treatment, hearing loss was diminished, and there has not been any sign of recurrence for 3 years despite the positive surgical margin.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
9/18. Tympanic paragangliomas: case reports.Glomus tumors, also called paragangliomas, originate from nonchromaffin cells. The tumor is typically vascular and grows from capillary and pre-capillary vessels in-between epithelial cells. It is worth mentioning that the most common symptoms are pulsating tinnitus and hearing loss. Imaging studies (CT and MRI) are necessary for diagnosis. This paper shows five patients seen at the Hospital between 1995 and 2001 presenting glomus tympanicum. women were most commonly affected, and the age ranged from 48 to 60 years (mean age of 50 years). The most common complaints were pulsating tinnitus and hearing loss. All patients were treated surgically.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
10/18. Kaposiform hemangioendothelioma arising from the internal auditory canal.Kaposiform hemangioendothelioma is a rare vascular tumor and locally aggressive endothelial-derived spindle cell neoplasm, which occurs almost exclusively in infants and adolescents. Radiologically, hemangioendothelioma, including Kaposiform hemangioendothelioma, is seen as a highly vascularized well-enhancing tumor, but no characteristic findings differentiate Kaposiform hemangioendothelioma from other soft-tissue tumors, particularly when the tumor is too small to have any locally aggressive features or identifiable large vessels. We present a case of Kaposiform hemangioendothelioma in the internal auditory canal that had no differential features on initial MR images and rapidly grew into a huge mass in a few months.- - - - - - - - - - ranking = 0.16666666666667keywords = vessel (Clic here for more details about this article) |
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