نتایج جستجو برای: extramedullary

تعداد نتایج: 3314  

2013
Byung Soo Kim Sang Woo Kim Kyung-Woo Kwak Jun Huck Choi

Spinal ependymoma occupies 40-60% of primary spinal cord tumors and has a feature of intramedullary tumor. The tumor most commonly arises from the central canal of the spinal cord, the conus medullaris or the filum terminale and its pathological features are usually benign. Unlike above characteristics, intra and extramedullary ependymomas are reported very rarely and have wide variety of histo...

2014
Eric K. C. Law Ryan K. L. Lee James F. Griffith Deyond Y. W. Siu Ho Keung Ng

Haemangioblastomas are uncommon tumours that usually occur in the cerebellum and, less commonly, in the intramedullary spinal cord. The extramedullary spinal canal is an uncommon location for these tumours. Also haemangioblastoma at this site is not known to be associated with polycythemia. We present the clinical, imaging, and histological findings of an adult patient with extramedullary spina...

Journal: :Turkish neurosurgery 2010
Wan Jun Kang Yi-Jun Zhang Xiang-Sheng Wan Jing

Spinal schwannomas are one of the most common intradural extramedullary spinal tumors. However, a string of bead-like intradural extramedullary schwannoma is highly uncommon. In the paper we present a case of a long-segment string of bead-like intradural extramedullary schwannoma of cauda equina from L2 to S2.The patient had been suffering progressive low back pain and sciatica with progressive...

Journal: :Onkologie 2012
Veit Phillip Hermann Berger Melanie Straub Bernd Saugel Matthias Treiber Henrik Einwächter Roland M Schmid Wolfgang Huber

BACKGROUND Primary myelofibrosis belongs to the group of myeloproliferative syndromes. Extramedullary hematopoiesis in the liver can lead to portal hypertension. PATIENT AND METHODS We report a case of a patient with life-threatening, endoscopically not treatable bleeding from esophageal varices due to extramedullary hematopoiesis of the liver that was successfully treated with placement of a...

2016
Yanling Ren Huifang Jiang Zhaoming Wang Guohua Zhou Hongyan Tong

We report two cases of chronic-phase chronic myeloid leukemia (CML), who presented extramedullary blast crisis; biopsy revealed proliferation of uniform blast cells, and immunophenotype was suggestive of CD34+ primitive hematopoietic cells. The BCR/ABL fusion gene detected in a paraffin-embedded section of the lesion by double-color fluorescence in situ hybridization (FISH), indicating an extra...

Journal: :Indian journal of cancer 2004
Lalit M Sharma G Biswas Sanjay S Rai Reena Nair Sudeep Gupta Purvish M Parikh

Solitary Extramedullary Plasmacytoma (EMP) is an uncommon neoplasm. When diagnosed, head and neck region is its most likely location. Rarely, it may occur in the retro-peritoneum. We report a 44 year old man with solitary extramedullary plasmacytoma in the retro peritoneum (RPEMP). The patient did not show response to three cycles of VAD chemotherapy. Thereafter Surgical excision of the mass wa...

Journal: :BMJ case reports 2008
Victor Dayan Virginia Michelis Alvaro Lorenzo

We report the case of a 79-year-old man for whom investigations of superior vena cava syndrome have revealed extramedullary plasmocytoma. Extramedullary plasmocytoma (EMP) is the less frequent form of plasma cell neoplasms. The mediastinal location of EMP is rare, and its compressive nature is exceptional. Another particular feature we observed is that the EMP was associated with an authentic k...

2017
G Goyal A C Bartley M M Patnaik M R Litzow A Al-Kali R S Go

Extramedullary myeloid sarcoma (MS, also known as granulocytic sarcoma, myeloblastoma or chloroma) is a rare form (o1%) of extramedullary acute myeloid leukemia (AML) presenting without bone marrow involvement. Due to the rarity of this disease, contemporary clinical data are mostly limited to small case series. The prognostic factors and outcomes of extramedullary MS are unclear. Similar to AM...

Journal: :American journal of clinical pathology 2009
Cristina Campidelli Claudio Agostinelli Richard Stitson Stefano A Pileri

Myeloid sarcoma (MS), also termed extramedullary acute myeloid leukemia, extramedullary myeloid tumor, and granulocytic sarcoma or chloroma, is a rare manifestation that is characterized by the occurrence of 1 or more tumor myeloid masses occurring at an extramedullary site. The wide spectrum of this disorder and the conditions that it overlaps diagnostically were well reflected in the 25 cases...

2007
Jun-Young Lee Jong-Ho Won Hyun-Jung Kim Sang-Byung Bae Chan-Kyu Kim Jung Hoon Kim Nam-Su Lee Kyu-Taeg Lee Sung-Kyu Park So-Young Jin Dae-Sik Hong Hee-Sook Park

Extramedullary plasmacytoma of the liver is a very rare tumor. Although a few cases of extramedullary plasmacytoma of the liver have been reported, we could not find any report on truly localized extramedullary plasmacytoma of the liver in the literature. The patient was a 63-yr-old man who exhibited a solitary liver mass on dynamic computed tomography and magnetic resonance imaging. Histologic...

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