Malignant tumors of the external auditory canal (EAC) are rare neoplasms that appear in the head and neck area. A common feature of these malignancies is their rarity, as well as their delayed diagnosis due to the appearance of non-specific symptoms …

Malignant neoplasms of the external auditory canal (EAC), the middle and inner ear are rare. Squamous cell carcinoma (SCC) is the most common neoplasm of these sites, followed by basal cell carcinoma (BCC), adenoid cystic carcinoma (ACC), ceruminous adenocarcinoma and middle ear adenocarcinoma.

Malignant tumors of the external auditory canal (EAC) are rare tumors in the head and neck. Delayed diagnosis is not uncommon because the symptoms of early tumors are nonspecific. Various surgical and oncological treatment modalities have been ...

2021年4月14日 · Squamous cell carcinoma is the most common tumor of EAC accounting for 80% of all tumors followed by basal cell carcinoma as the second most common histological type 2,3.

2023年9月7日 · Malignancies of the external auditory canal (EAC) are relatively rare with an estimated yearly incidence of 1-6 cases per million population. 1 This review will focus on the most common pathology, squamos cell carcinoma (SCC), which accounts for >90% of cases.

2017年5月14日 · Primary cancers of the external auditory canal (EAC) are uncommon, and those of the middle ear are rare. These include such diverse lesions such as papillary adenocarcinoma of the middle ear and endolymphatic sac and transitional cell and carcinoid tumors of the middle ear. Some carcinomas may be associated with chronic infection.

2023年7月24日 · Benign and malignant glandular EAC neoplasms are rare, can present similarly and can share histologic characteristics. Squamous cell carcinoma is the most common malignant neoplasm of the EAC and should be considered in patients with unresolving otitis externa or non-healing ulcerative or friable lesions.

2009年1月1日 · Primary cancer of the external auditory canal (EAC) is a rare disease with poor prognosis. Because of the rarity of this entity, there is no large series for staging, treatments, and outcomes. The purpose of this study is to evaluate the treatment modalities and outcomes for malignant tumors of EAC at our institute, comparing with other studies.

2014年9月1日 · Carcinoma of the external auditory canal (EAC) is a rare disease, with an annual incidence of approximately one to six cases per million people which accounts for less than 0.2% of all cancers in the head and neck area (Ting and Chun-fu, 2013, Morris et al., 2012).

EAC is cartilaginous (outer two-thirds) and bony (inner one-third). Cartilaginous EAC offers little barrier to tumor spread (as opposed to the bony EAC, which is a more effective barrier). Despite the appearance of wide margins of excision, there is a high incidence of local recurrence due to subdermal spread along periosteum and perichondrium.