Adenoid cystic carcinoma of external auditory canal: A case report

We present the case of a 51-year-old patient with sinonasal adenoid cystic carcinoma (SACC). Computed tomography (CT) and magnetic resonance imaging (MRI) exams revealed an expansive process in the right nostril accompanied with perineural spread and invasion to the floor of the middle cranial fossa. Due to the size of the tumor and brain involvement, the Head and Neck Tumor Board (HNTB) recommended radiochemotherapy treatment to decrease the size of the lesion. Presently, the patient is undergoing treatment without major complications.

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“…[ 2 ] Peak incidence occurs predominantly among women, between the fifth and sixth decades of life. [ 3 ]…”

Section: Discussionmentioning

confidence: 99%

Sinonasal Adenoid Cystic Carcinoma with Intracranial Invasion and Perineural Spread: A Case Report and Review of the Literature

Sepúlveda

Platín

Delgado

et al. 2015

Journal of Clinical Imaging Science

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“…Uncommon sites encompass the external auditory canal, nasopharynx, lacrimal glands, breast, vulva, esophagus, cervix, and Cowper glands [23].…”

Section: Discussionmentioning

confidence: 99%

Exploring the uncharted: adenoid cystic carcinoma nestled in temporal bone

Nibhanupudi,

Gangapatnam,

Padmanaban

et al. 2024

Egypt J Radiol Nucl Med

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Background Adenoid cystic carcinoma is an uncommon malignancy primarily arising from salivary glands. An extremely rare site for adenoid cystic carcinoma is the skull base. We report a case of adenoid cystic carcinoma of skull base who presented with common complaints of pain and right ear discharge. The discussion is made with emphasis on imaging evaluation simulating infective etiology with adjacent skull base osteomyelitis. Careful observation of the imaging findings and further evaluation of the patient revealed the neoplastic nature of the lesion with the final diagnosis being adenoid cystic carcinoma. Case presentation A 40-year-old female presented to our department with complaints of pain and right ear discharge since 6 months with progressive, extensive facial swelling and facial nerve palsy. The patient had undergone modified radical mastoidectomy thrice, but the details were not available. On imaging, there was a heterogenous extensive lesion extending from scalp till upper cervical region with extensive destruction of skull base and intra-cranial extension. The possibilities of temporal bone squamous cell carcinoma and extensive skull base osteomyelitis were considered. Further the biopsy of the lesion revealed adenoid cystic carcinoma. Conclusions Extensive lesions of the skull base can be of infective, neoplastic and inflammatory etiology. Distinguishing between these conditions is crucial, as they have similar imaging characteristics but require different management approaches. The presence of a lesion that displaces or destroys fascial planes, accompanied by solid mass-like enhancement, indicates a higher probability of a neoplastic origin rather than an infectious etiology. With squamous cell carcinoma being the most common neoplasm, adenoid cystic carcinoma of the skull base also needs to be understood due to its propensity for perineural spread and a high likelihood of recurrence.

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“…It occurs predominantly among women, between the fifth and sixth decades of life [3]. Sinonasal Adenocarcinomas mainly arise from the respiratory epithelium or the underlying mucoserous glands (60%).…”

Section: Introductionmentioning

confidence: 99%

Sinonasal Adenoid Cystic Carcinoma: A Case Report and Review of the Literature

Chafiki¹

2016

CTOIJ

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Adenoid cystic carcinoma of external auditory canal: A case report

Cited by 5 publications

References 17 publications

Sinonasal Adenoid Cystic Carcinoma with Intracranial Invasion and Perineural Spread: A Case Report and Review of the Literature

Sinonasal Adenoid Cystic Carcinoma with Intracranial Invasion and Perineural Spread: A Case Report and Review of the Literature

Exploring the uncharted: adenoid cystic carcinoma nestled in temporal bone

Sinonasal Adenoid Cystic Carcinoma: A Case Report and Review of the Literature

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