Results 11 to 20 of about 39,759 (339)

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

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
doaj   +2 more sources

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
openalex   +7 more sources

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
openalex   +4 more sources

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
openalex   +3 more sources

Benign Ear Neoplasm [PDF]

, 2020

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Ear Neoplasm [PDF]

, 2020

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Malignant Ear Neoplasm [PDF]

, 2020

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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
openalex   +4 more sources

Clinicopathology of Middle Ear Tumours: A Retrospective Study from a Tertiary Care Hospital, Hyderabad, India [PDF]

Journal of Clinical and Diagnostic Research, 2022
Introduction: Middle ear tumours are rare neoplasms that have non specific clinical presentation, otoscopic and imaging features and pose a diagnostic challenge. Most common neoplasm of middle ear are paraganglioma, schwannoma, haemangioma and middle ear
Narala Srivani, Thamidala Mahitha Joyce
doaj   +1 more source