Abstract

  Injuries to the external auditory canal (EAC) are usually assessed by the specialist in Otorhinolaryngology. The main differential diagnosis is made with malignant lesions and cholesteatoma of the EAC. However, we found benign skin lesions such as seborrheic keratoses; although they are extremely rare at this level, frequently seen in the elderly, and severely affect the trunk, head and neck [1-4].

  We present the case of a 65-year-old patient who consults for Emergency Service for sensation of hearing loss, otorrhagia, and fetid otorrhea. Among his medical history, he underwent surgery 7 years ago due to a EAC injury to the same ear. The diagnosis was irritated seborrheic keratosis.

  Given the evolution over time, a biopsy of the reddish-violet lesion of a friable and bleeding consistency that completely occluded the lumen of the duct was performed.

Computerized axial tomography (CT) was requested to rule out bone erosion and infiltration, and topical treatment was prescribed.

  We have found six cases in the English literature about the histopathology of seborrheic keratosis in its irritated form, however, the therapeutic management of this type of lesions has not been well described.

Keywords: Seborrheic Keratosis; Ear Canal; Irritated Seborrheic Keratosis

References

1. Konishi E., et al. “Irritated seborrheic keratosis of the external ear canal”. Pathology International 53 (2003): 622-626.
2. De Loof M., et al. “Two cases of seborrheic keratosis of the external ear canal: involvement of PIK3CA and FGFR3 genes”. International Journal of Dermatology 57 (2018): 703-706.
3. Kim KW., et al. “Clinical analysis of seborrheic keratoses in the ear: a retrospective study and literature review”. European Archives of Oto-Rhino-Laryngology 272 (2014): 1113-1117.
4. Di Stadio A., et al. “Seborrheic Keratosis or Squamous Carcinoma? Clinical Examination versus Biopsy: The Importance of Criticism”. The Journal of International Advanced Otology 15 (2019): 326-329.
5. Karadag Ayse Serap. “The Status of the Seborrheic Keratosis”. Clinics in Dermatology (2017).
6. Izquierdo Velásquez JC., et al. “Seborrheic Keratosis of the External Auditory Canal”. Otology and Neurotology (2012).

Citation

Citation: Laura Rodríguez Alcalá., et al. “Treatment of Irritated Seborrheic Keratosis of External Auditory Canal (EAC)". Acta Scientific Otolaryngology 2.11 (2020): 13-15.

Copyright

Copyright: © 2020 Laura Rodríguez Alcalá., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.