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https://www.readbyqxmd.com/read/28101170/extramedullary-hematopoiesis-a-report-of-two-cases
#1
Huan-Zhu Zhang, Ying Li, Xin Liu, Bao-Rong Chen, Guo-Hua Yao, Yu-Na Peng
Extramedullary hematopoiesis (EMH) is defined as hematopoiesis occurring in organs outside of the bone marrow. The present report describes two cases of thalassemic patients with paraspinal medullary hematopoiesis and analyzes the clinical manifestations, imaging, pathology, diagnosis and treatment of EMH. In addition, a supplementary review of previously published cases is provided along with a review of the related literature. Computed tomography (CT) of the first case revealed multiple paraspinal masses, and the largest was 6...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28089196/descriptive-analysis-of-unplanned-readmission-and-reoperation-rates-after-intradural-spinal-tumor-resection
#2
Christian Fisahn, Felipe H Sanders, Marc Moisi, Jeni Page, Peter C Oakes, Mary Wingerson, Joe Dettori, R Shane Tubbs, Parthasarathi Chamiraju, Peter Nora, David Newell, Johnny Delashaw, Rod J Oskouian, Jens R Chapman
INTRODUCTION: Spinal cord tumors (SCT) are relatively uncommon and usually require surgical treatment. Readmission within 30days after discharge is an important indicator of health care quality. The aim of this study was to investigate the rates and causes of unplanned readmissions and reoperations after SCT surgery. METHODS: A retrospective analysis of patients' charts at a single center from May 2007 to September 2015 was completed. INCLUSION CRITERIA: history of laminectomy with excision of neoplasm in the spinal cord...
January 11, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28062667/smn-deficiency-negatively-impacts-red-pulp-macrophages-and-spleen-development-in-mouse-models-of-spinal-muscular-atrophy
#3
Marie-Therese Khairallah, Jacob Astroski, Sarah K Custer, Elliot J Androphy, Craig L Franklin, Christian L Lorson
Spinal muscular atrophy (SMA) is a progressive neurodegenerative disease that is the leading genetic cause of infantile death. It is caused by severe deficiency of the ubiquitously expressed Survival Motor Neuron (SMN) protein. SMA is characterized by α-lower motor neuron loss and muscle atrophy, however, there is a growing list of tissues impacted by SMN deficiency beyond motor neurons. The non-neuronal defects are observed in the most severe Type I SMA patients and most of the widely used SMA mouse models, however, as effective therapeutics are developed, it is unclear whether additional symptoms will be uncovered in longer lived patients...
January 5, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28062243/extramedullary-relapse-of-acute-lymphoblastic-leukemia-presenting-as-abnormal-uterine-bleeding-a-case-report
#4
Diana T Robillard, Matthew A Kutny, Joseph H Chewning, Janeen L Arbuckle
BACKGROUND: Acute lymphoblastic leukemia (ALL) is the most common childhood malignancy. Relapse of ALL occurs in 15-20% of patients, with 2-6% occurring exclusively in extramedullary sites. Relapse of ALL in gynecologic organs is extremely rare. CASE: We present a case of a 12 year old with a history of ALL who was referred to the pediatric gynecology clinic with abnormal uterine bleeding. She was determined to have an extramedullary uterine relapse of her ALL. SUMMARY AND CONCLUSION: Abnormal uterine bleeding in the setting of childhood malignancy is a frequent reason for consultation to Pediatric and Adolescent Gynecology services...
January 3, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28061985/multiple-myeloma-epidemiology-and-survival-a-unique-malignancy
#5
REVIEW
Dickran Kazandjian
Multiple myeloma (MM), although a rare disease, is the second most common hematologic malignancy. It is found in the spectrum of plasma cell dyscrasias, which begins with monoclonal gammopathy of unknown significance (MGUS) to overt plasma cell leukemia and extramedullary myeloma. MM is associated with significant morbidity due to its end-organ destruction. It is a disease of the older population and its incidence in the African American population is twice that of the European American population. Improvements in the treatment of MM in the past couple of decades, beginning with the use of autologous stem cell transplantation followed by availability of novel treatments such as immunomodulatory drugs (ImIDs) and proteasome inhibitors (PIs) has transformed the natural history of the disease leading to longer survival times...
December 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/28060677/pathogenesis-of-frog-virus-3-ranavirus-iridoviridae-infection-in-wood-frogs-rana-sylvatica
#6
M J Forzán, K M Jones, E Ariel, R J Whittington, J Wood, R J Frederick Markham, P-Y Daoust
Wood frogs ( Rana sylvatica) are highly susceptible to infection with Frog virus 3 (FV3, Ranavirus, Iridoviridae), a cause of mass mortality in wild populations. To elucidate the pathogenesis of FV3 infection in wood frogs, 40 wild-caught adults were acclimated to captivity, inoculated orally with a fatal dose of 10(4.43) pfu/frog, and euthanized at 0.25, 0.5, 1, 2, 4, 9, and 14 days postinfection (dpi). Mild lesions occurred sporadically in the skin (petechiae) and bone marrow (necrosis) during the first 2 dpi...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28056398/clinical-outcome-of-myeloid-sarcoma-in-adult-patients-and-effect-of-allogeneic-stem-cell-transplantation-results-from-a-multicenter-survey
#7
Davide Lazzarotto, Anna Candoni, Carla Filì, Fabio Forghieri, Livio Pagano, Alessandro Busca, Giuseppina Spinosa, Maria Elena Zannier, Erica Simeone, Miriam Isola, Erika Borlenghi, Lorella Melillo, Federico Mosna, Federica Lessi, Renato Fanin
INTRODUCTION: Myeloid Sarcoma (MS) is a rare hematologic myeloid neoplasm that can involve any site of the body. It can occur as an exclusively extramedullary form or it can be associated with an acute myeloid leukemia (AML), a chronic myeloproliferative neoplasm (MPN) or a myelodysplastic syndrome (MDS) at onset or at relapse. The rarity of MS does not enable prospective clinical trials and therefore a specific multicenter register can be useful for the clinical and biological studies of this rare disease...
December 20, 2016: Leukemia Research
https://www.readbyqxmd.com/read/28053635/relapse-of-biphenotypic-acute-leukemia-as-a-breast-mass
#8
Hee-Chul Shin
In acute leukemia, leukemic infiltration of the breast is extremely rare. We report a case of biphenotypic acute leukemia (BAL) that presented as a breast mass. A 30-year-old woman presented with a 4-month history of a right breast mass with nipple discharge and easy fatigue. She had received chemotherapy and peripheral blood stem cell transplantation for BAL and had been in complete remission for the last 2 years. Core needle biopsy of the breast mass revealed monomorphous infiltrates of blast cells with round nuclei and fine chromatin, consistent with leukemic infiltration...
December 2016: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28050994/autologous-stem-cell-transplantation-for-multiple-myeloma-long-term-results
#9
Lalit Kumar, Rakesh Reddy Boya, Rohit Pai, P Harish, Anjali Mookerjee, B Sainath, Mukesh Bhimrao Patekar, Ranjit Kumar Sahoo, Prabhat Singh Malik, O D Sharma, Ritu Gupta
BACKGROUND: Survival of myeloma patients has improved considerably in the past decade. However, limited data are available on their long-term outcome. We analysed the data of 225 consecutive patients who underwent autologous stem cell transplantation (ASCT) at our centre. METHODS: Between April 1990 and December 2013, a total of 225 patients with multiple myeloma (median age 53 years, range 27-67 years, 69.3% men) underwent ASCT. High-dose melphalan 200 mg/m2 was used for conditioning...
July 2016: National Medical Journal of India
https://www.readbyqxmd.com/read/28050154/treatment-and-outcomes-for-primary-cutaneous-extramedullary-plasmacytoma-a-case-series
#10
D S Tsang, L W Le, V Kukreti, A Sun
BACKGROUND: Primary cutaneous plasmacytoma (pcp) is a rare disease, with few studies to guide therapy. Our primary study objective was to define treatments used for pcp; a secondary objective was to describe outcomes of patients, including disease recurrence and death. METHODS: An institutional cancer registry was used to identify cases for retrospective chart review. In a systematic review, treatments for, and outcomes of, all known cases of pcp were described...
December 2016: Current Oncology
https://www.readbyqxmd.com/read/28041319/rapid-and-complete-radiological-resolution-of-an-intradural-cervical-cord-lung-cancer-metastasis-treated-with-spinal-stereotactic-radiosurgery-case-report
#11
E Emily Bennett, Camille Berriochoa, Ghaith Habboub, Scott Brigeman, Samuel T Chao, Lilyana Angelov
Stereotactic radiosurgery (SRS) has emerged as a treatment option for patients with spinal metastatic disease. Although SRS has been shown to be successful in a multitude of extradural metastatic tumors causing cord compression, very few cases of intradural treatment have been reported. The authors present a rare case of an intradural extramedullary metastatic small cell lung cancer lesion to the cervical spine resulting in cord compression in an area that had also been extensively pretreated with conventional external-beam radiation therapy...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28028449/intradural-extramedullary-isolated-compressive-sarcoid-lesion
#12
Kyle A Smith, Samuel K Asante, John Clough
BACKGROUND: Sarcoid involvement of the central nervous system is a rare occurrence, with involvement in approximately 5-10% of all cases. Isolated spinal involvement is an even rarer encounter, only 0.3-1% of all cases. These lesions can form compressive nodules leading to myelopathy. In the presented case of cervical sarcoid, the patient required a decompressive procedure to address cord compression. CASE DESCRIPTION: This is the case of a 39-year-old male presenting with cervical myelopathy caused by a compressive sarcoid nodule who underwent a successful posterior decompressive procedure...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/28025076/unusual-extramedullary-hematopoietic-neoplasms-in-lymph-nodes
#13
Vanessa D Dayton, Sarah J Williams, Robert W McKenna, Michael A Linden
Myeloid, plasma cell, and lymphoblastic neoplasms are expected findings in bone marrow but are much less commonly diagnosed as primary processes in lymph nodes. The objective of this review is to aid pathologists in recognizing common hematopoietic neoplasms in the unusual setting of initial presentation in lymph nodes. Review of historical background and evolution of testing strategies is presented in order to improve understanding of the need for accurate diagnosis and classification using current nomenclature...
December 23, 2016: Human Pathology
https://www.readbyqxmd.com/read/28018768/rare-intradural-cervical-nerve-root-metastasis-of-follicular-thyroid-carcinoma
#14
Joseph Keen, Elena Milosavljevic, George Hanna, Vadim Gospodarev, Ravi Raghavan, Samer Ghostine
Intradural extramedullary nerve root metastasis is extremely unusual with only a handful of cases reported, and it presents most commonly in the thoracic and lumbosacral regions. We report the first case of metastasis to a ventral cervical nerve root in a patient with low-grade follicular thyroid carcinoma thought to be in remission for several years. Histopathology demonstrated malignant transformation and invasion of the nerve root. This case underscores that any history of malignancy regardless of staging, grading, or remission status should raise the suspicion of metastasis as it can mimic other spine and nerve sheath tumors and represent malignant transformation...
November 24, 2016: Curēus
https://www.readbyqxmd.com/read/28017340/feline-respiratory-extramedullary-plasmacytoma-with-lymph-node-metastasis-and-intrahistiocytic-amyloid
#15
S E Sykes, V Byfield, L Sullivan, S J Bender, P F Moore, M D Sánchez
A 14-year-old domestic longhaired cat presented with a 2-year history of nasal discharge and a recent onset of inappetence and submandibular lymphadenopathy. The cat was humanely destroyed after developing severe respiratory distress. Necropsy examination revealed thickened nasal turbinates and soft palate, and friable red-tan material within the frontal sinus, nasal cavity and nasopharynx. The lungs contained multifocal irregular friable tan nodules. Multiple lymph nodes were enlarged, friable and red-tan in colour...
December 22, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28011890/idiopathic-myelofibrosis-with-disseminated-hepatosplenic-mesenteric-renal-and-pulmonary-extramedullary-haematopoeisis-portal-hypertension-and-tuberculosis-initial-presentation-and-2%C3%A2-years-follow-up
#16
Ananya Panda, Sheragaru Hanumanthappa Chandrashekhara, Aruna Nambirajan, Pravas Mishra
A 35-year-old man with a 12-year history of idiopathic myelofibrosis (IMF) presented in 2014 with fatigue and abdominal distension. CT scan revealed massive hepatosplenomegaly with focal splenic lesions, soft tissue around renal pelvis, mesenteric masses compressing bowel loops and perilymphatic nodules in lungs. There was portal hypertension, ascites, pleural effusion, bilateral psoas abscesses and necrotic retroperitoneal lymphadenopathy. MRI additionally revealed hypointense periportal infiltrative lesions in liver, not seen on CT scan...
December 23, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/28005510/case-237-renal-cell-carcinoma-with-osseous-metaplasia
#17
Billy Ming Hei Lai, Solomon Yig Joon Ka, Wai Kuen Kan, Man Wah Lam, Tang Fei Lee, Yun Hoi Lui, Jennifer Lai San Khoo
History A 47-year-old man presented with palpitations and decreased exercise tolerance. A peripheral blood smear revealed anemia, thrombocytopenia, and blast cells, and a diagnosis of acute myeloid leukemia was made. Immunohistochemistry revealed positivity for cluster of differentiation (or CD) markers, which have been reported to be associated with an increased risk of extramedullary leukemic involvement. Thus, contrast material-enhanced computed tomography (CT) of the thorax, abdomen, and pelvis was requested to enable exclusion of any extramedullary extension of leukemia...
January 2017: Radiology
https://www.readbyqxmd.com/read/28003900/relapse-of-multiple-myeloma-presenting-as-lower-lip-numbness
#18
Yusra M Al-Riyami, Abdulaziz Bakathir, Khalil Al-Farsi, Faisal Al-Azri
Multiple myeloma (MM) is an uncommon malignancy characterised by the proliferation of clonal plasma cells. There are few published reports describing the extramedullary presentation of MM manifesting primarily in the head and neck region. In addition, the occurrence of an isolated relapse of MM in these sites is exceedingly rare. We report a 56-year-old female who presented to the Sultan Qaboos University Hospital, Muscat, Oman, in 2010 with sudden-onset numbness of the lower lip. She had a history of MM in remission following chemotherapy and a bone marrow transplant...
November 2016: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/27999854/epidemiology-and-postoperative-outcomes-of-atypical-femoral-fractures-in-older-adults-a-systematic-review
#19
K S F Khow, P Shibu, S C Y Yu, M J Chehade, R Visvanathan
OBJECTIVE: To review the literature on epidemiology and postoperative outcomes particularly surgical, functional and quality of life of atypical femoral fractures (AFFs) in the older population (aged ≥65 years) using the first and second American Society of Bone Mineral Research (ASBMR) Task Force consensus definition. METHODS: Electronic search for articles on AFFs and bisphosphonates published in English was performed. Eligible studies were reviewed systematically in relation to (a) the epidemiology of AFFs in older people and (b) postoperative outcomes of AFFs...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27982764/spinal-cord-hemangioblastomas-significance-of-intraoperative-neurophysiological-monitoring-for-resection-and-long-term-outcome
#20
Sebastian Siller, Andrea Szelényi, Lisa Herlitz, Joerg Christian Tonn, Stefan Zausinger
OBJECTIVE Spinal cord hemangioblastomas are rare benign tumors developing either sporadically or as part of von Hippel-Lindau (VHL) disease. Generally, resection is the treatment of choice. However, the significance of intraoperative neurophysiological monitoring (IONM) for resection and postoperative outcome is still controversial. The authors analyzed the surgical and clinical courses of patients who had undergone resection of spinal cord hemangioblastoma, with special attention to preoperative imaging, the use of IONM, and short- and long-term outcomes...
December 16, 2016: Journal of Neurosurgery. Spine
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