نتایج جستجو برای: ancient schwannoma

تعداد نتایج: 43156  

2013
A. Mishra M. Hamadto M. Azzabi M. Elfagieh

A 29-year-old female had presented to surgical outpatient's department complaining of lump in the anterior abdominal wall. Ultrasound and magnetic resonance imaging revealed a solid degenerated tumor in the anterior abdominal wall. It was surgically excised, and histopathology confirmed it to be "ancient" schwannoma. To our knowledge, this is the second reported case of an abdominal wall ancien...

2017
Nimisha Vallabh Venkat Srinivasan David Hughes David Agbamu

Ancient schwannomas are benign, slow-growing tumours derived from the neural sheath. They are characterized by degenerative changes which are not seen in the common schwannoma. An unusual case of ancient schwannoma of the sublingual space is reported to highlight the diagnostic challenge that this tumour presents. A 49-year-old male patient presented with an 8-month history of a right-sided nec...

Journal: :Medical Bulletin of Haseki 2019

2015
Satyajit Rath Prakash K. Sasmal Kaushik Saha N. Deep Pritinanda Mishra Tushar S. Mishra Rakesh Sharma

Ancient schwannoma is an uncommon variant of schwannoma, a benign tumor arising from the nerve sheath. It is reported to arise from any nerves except optic and olfactory. However, only six cases of ancient schwannomas arising from ansa cervicalis nerve have been reported to date in English literature. Proper preoperative evaluation is necessary to rule out other causes of neck mass such as thyr...

Journal: :iranian journal of pathology 0
tamgadge avinash dept. of oral & maxillofacial pathology and microbiology dr d y patil dental college & hospital, sector 7, nerul, navi mumbai, maharashtra, india tamgadge sandhya dept. of oral & maxillofacial pathology and microbiology dr d y patil dental college & hospital, sector 7, nerul, navi mumbai, maharashtra, india shashibhushan dodal dept. of oral & maxillofacial pathology and microbiology dr d y patil dental college & hospital, sector 7, nerul, navi mumbai, maharashtra, india mayura chande dept. of oral & maxillofacial pathology and microbiology dr d y patil dental college & hospital, sector 7, nerul, navi mumbai, maharashtra, india treville pereira dept. of oral & maxillofacial pathology and microbiology dr d y patil dental college & hospital, sector 7, nerul, navi mumbai, maharashtra, india

neurilemmomas are benign tumors of peripheral nerve sheath schwann cells. one of the variants of neurilemmoma is the ancient type of neurilemmoma characterized by degenerative features such as cystic degeneration, calcification, hemorrhage and hyalinization which could be easily misdiagnosed. their occurrence in oral cavity is extremely rare and intraosseous type occurring in maxilla is exceedi...

2012
SI Sayed P Rane A Deshmukh D Chaukar S Menon S Arya AK D’cruz

A schwannoma is a benign, encapsulated tumour that is derived from neural sheath (Schwann) cells. Approximately 25-40% of schwannomas occur in the head and neck. The most common site is the parapharyngeal space of the neck; oropharyngeal occurrence is extremely rare. Among the various histological types of schwannomas reported to date, the ancient (degenerative) variant is the most rare. To ou...

Journal: :The Journal of Thoracic and Cardiovascular Surgery 2003

Journal: :The Malaysian journal of medical sciences : MJMS 2007
Primuharsa Putra Sabir Husin Athar Norleza Ahmad Norhan Megat Shiraz Megat Abdul Rahman

Schwannoma of the cervical sympathetic chain is an extremely rare nerve tumour. We report an unusual swelling in a 41-year-old female who presented with an asymptomatic solitary mass in the right parapharyngeal space. Clinical examination and computed tomography showed displaced carotid artery in an antero-medial direction. Surgical excision of the lesion was carried out and histological examin...

2017
Erdal Uysal Göktürk Maralcan Türkay Kırdak Hasan Bakır Mehmet Sökücü Reşat Kervancıoğlu

Schwannomas are tumors originating from Schwann cells in the nerve sheath. Although they can appear on many parts of the body, they occur most frequently in the head and neck. Furthermore, they are very rarely seen in the retroperitoneal region. Ancient schwannoma is a sub-type of schwannomas that is quite rare. In this study, the case of a retroperitoneal ancient schwannoma, which showed cysti...

Journal: :Actas dermo-sifiliograficas 2017
P García-Montero J M Segura Palacios M de Troya Martín

An 89-year-old man with no past medical history of interest consulted for an asymptomatic lesion that had arisen on his left heel 40 years earlier and that had become ulcerated in recent months. Examination revealed an indurated, sessile, skin-colored tumor of 3.5 × 4 cm, with a superficial, exudative brownish-yellow scab (Fig. 1A). Skin ultrasound (18 MHz linear probe) revealed a well-defined,...

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