[Clinical characteristics of XXXX originating in the external ear].

@entity1 @entity5 @entity1489 @entity957 @entity1066 @entity1544 @entity3 @entity320 @entity1491
BACKGROUND: @entity1489 that originate in the external ear are common in individuals with type 1 skin and phenotype 1 and 2. The @entity1489 is associated with chronic or intermittent, but intense sunlight. The most common @entity5 is @entity1491 , followed by @entity957 and @entity320 . The diagnosis of @entity1544 in head and neck area is usually made in the advanced stages and has a poor prognosis. MATERIAL AND METHODS: A cross-sectional, retrospective analysis was performed on the database of @entity1 with @entity1489 of the external ear treated between 2011 and 2014. Histology type, stage, rate of clinical and occult @entity3 , and rate of loco-regional recurrence were evaluated. RESULTS: Of the 42 @entity1 included there were, 25 @entity957 , 11 @entity1491 , and 6 invasive @entity320 . The rate of lymph node @entity3 in @entity1 with @entity957 was 32%, mostly in the parotid and peri-parotid region, 7% of them with capsular rupture, 2/17 were staged as cN0, and 11.7% had occult @entity3 . All @entity1 with nodal metastasis were classified as T2 with @entity1066 . None of the @entity1 with @entity1491 had lymph node @entity3 . All @entity320 were superficial extension type with mean level of Breslow of 3 mm. All underwent lymphatic mapping and sentinel node biopsy, with only one having @entity3 in the sentinel node. CONCLUSION: The most frequent @entity5 in the external ear in this series was @entity957 . The possibility of lymph node @entity3 is associated with @entity5 size (T). Node dissection should be systematic in @entity1 with T2 or greater.
