Results 1 to 10 of about 54,647 (338)

Neuroendocrine neoplasms of the middle ear: Unpredictable tumor behavior and tendency for recurrence [PDF]

Head & Neck, 2021
AbstractBackgroundMiddle ear adenomatous neuroendocrine tumors (MEANTs) are rare temporal bone tumors. This study evaluates its clinical behavior and therapy outcome.MethodRetrospective case review in a tertiary referral center evaluating histopathology, immunohistochemistry, treatment, and outcome.ResultsNine patients were diagnosed with MEANT.
Rik Johannes Leonardus van der Lans, Michelle S. D. Engel, Johannes A. Rijken, Erik F. Hensen, Elisabeth Bloemena, M. van der Torn, C. René Leemans, Conrad F. Smit   +7 more
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Ceruminous Neoplasms of the Ear [PDF]

Head and Neck Pathology, 2018
Ceruminous glands are modified apocrine glands located in the external auditory canal (EAC). Neoplastic lesions arising from these glands are rare in humans and constitute a major differential diagnosis for glandular neoplasms of the EAC. Due to anatomic restrictions, benign and malignant neoplasms present with similar symptoms and to some extent even ...
Priyadharsini Nagarajan
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Neuroendocrine Neoplasms of the Ear [PDF]

Head and Neck Pathology, 2018
Neuroendocrine neoplasms of the ear are uncommon primary tumors. There is a reported debate in the literature as to the true nature of these tumors and how to classify them. However, there is a kind of consensus that they can represent a spectrum of a common entity with dual glandular and neuroendocrine differentiation.
Nora Katabi
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Papillary Mucinous Adenocarcinoma of the Endolymphatic Sac: A Rare Middle Ear Neoplasm [PDF]

Cureus, 2021
Glandular neoplasms of the temporal-mastoid region and endolymphatic sac (ELS) are rare, and it is quite challenging to differentiate between an adenoma and an adenocarcinoma. ELS tumors (ELST) usually present with papillary, follicular, or solid patterns and can be further distinguished histologically and through immunohistochemistry.
Muhammad Tahir, Cherish Frick, Ghassan Tranesh   +2 more
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Incidental finding of a neuroendocrine neoplasm in a suspected ear canal exostosis

Otolaryngology Case Reports, 2022
A 55-year-old man was referred to the Department of Otorhinolaryngology with a five-month history of progressive conductive hearing loss associated with a tumor in the external auditory canal. A temporal bone computed tomography (CT) revealed a bony growth covered by a thickened layer of soft tissue compatible with an exostosis. The suspected exostosis
Alexander Wieck Fjældstad, Gerda Elisabeth Villadsen, Gitte Dam, Stephen Hamilton‐Dutoit, Thomas Winther Frederiksen   +4 more
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Nine primary malignant neoplasms-involving the esophagus, stomach, colon, rectum, prostate, and external ear canal-without microsatellite instability: a case report [PDF]

BMC Cancer, 2018
Background Although cases of multiple primary malignant neoplasms are increasing, reports of more than three or four primary metachronous malignant neoplasms are extremely rare.
Keiichi Arakawa, Keisuke Hata, Yoko Yamamoto, Takeshi Nishikawa, Toshiaki Tanaka, Tomomichi Kiyomatsu, Kazushige Kawai, Hiroaki Nozawa, Masafumi Yoshida, Hiroshi Fukuhara, Mitsuhiro Fujishiro, Teppei Morikawa, Tatsuya Yamasoba, Kazuhiko Koike, Masashi Fukayama, Toshiaki Watanabe   +15 more
doaj   +2 more sources

Papillary‐cystic neoplasms of the middle ear are distinct from endolymphatic sac tumours [PDF]

Histopathology, 2020
AimsPapillary neoplasms of the middle and inner ear are rare and poorly characterised. The current World Health Organization classification divides them into two major subtypes: aggressive papillary tumours (APTs) and endolymphatic sac tumours (ELSTs). The aim of this article is to present two papillary neoplasms of the middle ear that do not fit into ...
Cecilia Taverna, Federica Pollastri, Raffaella Pecci, Beatrice Giannoni, Caterina Fattorini, Marco Santucci, Sarina K. Mueller, Robert Stoehr, Alessandro Franchi, Abbas Agaimy   +9 more
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The use of the «Surgitron» radiowave scalpel for the surgical treatment of external ear neoplasms

Vestnik otorinolaringologii, 2016
The objective of the present study was to elucidate etiology and clinical picture of the tumours of the external ear as well as to evaluate the effectiveness of their radiowave surgery. We sought to optimize the surgical strategy for the treatment of tumour-like masses, benign and malignant neoplasms of the external ear with the use of the Surgitron ...
V. I. Popadyuk, A. I. Chernolev, V F Antoniv, I A Korshunova   +3 more
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Chondrosarcoma of the Jugular Foramen: A Case Report [PDF]

Journal of International Advanced Otology
The vast majority of chondrosarcomas of the skull (CS) are located at the skull base and represent locally aggressive malignant tumors that account for 0.15% of all intracranial neoplasms.
Josip Prnjak, Andro Košec, Alan Pegan, Tomislav Greguric, Jakov Ajduk   +4 more
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A Rare Cervical Manifestation of Acute Myeloid Leukemia: Granulocytic Sarcoma Simulating as a Gynecologic Tumor [PDF]

Case Reports in Oncological Medicine
Granulocytic sarcoma (GS) is an extramedullary accumulation of proliferating myeloblasts, most commonly seen in patients with acute myeloid leukemia (AML) but rarely associated with chronic myeloid leukemia, myelodysplastic syndromes, or ...
Figen Efe Çamili, Gülay Turan, Kübra Bil, Gürhan Güney, Selim Afsar, Mine Islimye Taşkin   +5 more
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