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Solitary Fibrous Tumor

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https://www.readbyqxmd.com/read/29438169/superficial-solitary-fibrous-tumor-a-series-of-26-cases
#1
Patrick Feasel, Alyaa Al-Ibraheemi, Karen Fritchie, Riyam T Zriek, Wei-Lien Wang, Elizabeth Demicco, Marcela Saeb-Lima, John R Goldblum, Brian P Rubin, Jesse K McKenney, Jennifer S Ko, Steven D Billings
While superficial (cutaneous/subcutaneous) solitary fibrous tumor (SFT) have been described, definitive diagnosis is difficult due to overlapping features with other tumors. We describe the largest series to date of superficial SFT. For inclusion, SFT had to arise in dermis or subcutis. Twenty-six cases were identified. Patients ranged from 16 to 80 years (mean, 47 y) with a marked female predominance (19 F; 7 M). Tumors involved the head (11), thigh (7), back (3), shoulder (2), upper arm (1), ankle (1), and great toe (1)...
February 12, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29429159/-retroperitoneal-dedifferentiated-liposarcoma-with-rhabdomyoblastic-differentiation-a-clinicopathological-analysis
#2
L Liu, L H Wang, Y B Ren, X S Rao, S M Yang
Objective: To investigate the clinicopathological features, differential diagnosis, treatment and prognosis of dedifferentiated liposarcoma with rhabdomyoblastic differentiation. Methods: Six cases of retroperitoneal dedifferentiated liposarcoma with rhabdomyoblastic features were collected from December 2014 to August 2017 at Peking University International Hospital. The clinical manifestations, histomorphology, immunophenotype, treatment and follow-up data were analyzed, and relevant literature reviewed. Results: The six patients included two males and four females, with age range of 47 to 66 years (mean 56 years)...
February 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29427152/solitary-fibrous-tumor-hemangiopericytoma-of-the-central-nervous-system-a-population-based-study
#3
Connor J Kinslow, Samuel S Bruce, Ali I Rae, Sameer A Sheth, Guy M McKhann, Michael B Sisti, Jeffrey N Bruce, Adam M Sonabend, Tony J C Wang
The World Health Organization (WHO) classification of tumors of the central nervous system (CNS) was recently updated, restructuring solitary fibrous tumor (SFT) and hemangiopericytoma (HPC) into one combined entity. This is the first population-based study to examine outcomes of SFT/HPC based on the new WHO guidelines. The Surveillance, Epidemiology, and End Results (SEER) database (1998-2013) was queried to examine age-adjusted incidence and prognostic factors associated with overall survival in 416 surgically resected cases...
February 9, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29423351/hemangiopericytoma-in-the-olfactory-groove-a-rare-and-unusual-presentation
#4
Raghav Gupta, Justin M Moore, Kai Miller, Griffith R Harsh
Intracranial hemangiopericytomas (HPCs) are solitary fibrous tumors of the smooth muscle and the mesenchymal origin. While meningiomas located within the olfactory groove are common, an HPC in this location has never been reported previously. Here we describe the rare presentation of a differentiated HPC masquerading as an olfactory groove meningioma in a 33-year-old female presenting with the progressive headaches, anosmia, and visual field disturbances. Following resection, the histopathological analysis confirmed a grade II HPC...
November 25, 2017: Curēus
https://www.readbyqxmd.com/read/29413661/differential-diagnosis-of-benign-spindle-cell-lesions
#5
REVIEW
Gaetano Magro
Spindle cell lesions of the breast cover a wide spectrum of diseases ranging from reactive tumor-like lesions to high-grade malignant tumors. The recognition of the benign spindle cell tumor-like lesions (nodular fasciitis; reactive spindle cell nodule after biopsy, inflammatory pseudotumor/inflammatory myofibroblastic tumor; fascicular variant of pseudoangiomatous stromal hyperplasia) and tumors (myofibroblastoma, benign fibroblastic spindle cell tumor, leiomyoma, schwannoma, spindle cell lipoma, solitary fibrous tumor, myxoma) is crucial to avoid confusion with morphologically similar but more aggressive bland-appearing spindle cell tumors, such as desmoid-type fibromatosis, low-grade (fibromatosis-like) spindle cell carcinoma, low-grade fibrosarcoma/myofibroblastic sarcoma and dermatofibrosarcoma protuberans...
March 2018: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29396607/-sinonasal-tumors-news-from-the-who-with-special-reference-to-mesenchymal-entities
#6
REVIEW
A Agaimy, F Haller, A Hartmann
The last two decades have seen significant advances in the pathology of sinonasal tract neoplasms. This was the consequence of the availability of several innovative diagnostic tools, which resulted in a dynamic evolution of entities and splitting of newly defined or conceptualized entities and subtypes that have been included in the spectrum of old heterogeneous diseases. Most of these new tumor subtypes have distinctive demographic, clinicopathologic, and biological characteristics with prognostic and therapeutic implications for individual patients...
February 2, 2018: Der Pathologe
https://www.readbyqxmd.com/read/29390521/solitary-fibrous-tumor-of-the-ilium-a-case-report
#7
Xiuhong Ge, Jinsheng Liao, Ryan Justin Choo, Juncheng Yan, Jingfeng Zhang
RATIONALE: Solitary fibrous tumors (SFTs) are rare spindle cell tumors that are most commonly found in the mediastinal pleura. Although there are increasingly more reports of extra-pleural SFTs, reports of SFTs in bone are very rare. To our knowledge, a SFT of the ilium has not yet been reported. With low specificity on computer tomograpy and magnetic resonance imaging, SFTs are easily misdiagnosed. PATIENT CONCERNS: A 33-year-old man visited our hospital due to repeated right ilium pain for 3 months...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29390499/rapid-metastasis-of-mediastinal-solitary-fibrous-tumor-report-a-case
#8
Yingming Xiang, Shaosong Tu, Fangbiao Zhang
RATIONALE: Mediastinal solitary fibrous tumors (SFTs) are rare mesenchymal neoplasms. Complete resection is considered as the effective treatment and the prognosis is quite good. Rapid metastasis after surgery is extremely rare. PATIENT CONCERNS: In this case report we describe a 42-year-old man who present with a mediastinal malignant SFTs. Enhanced computed tomography of chest revealed a 4.5 × 4.0-cm mass in the anterior mediastinum. DIAGNOSES: The tumor is composed of massive proliferation of atypical spindle cells...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29390282/giant-solitary-fibrous-tumor-of-the-pleura-with-high-grade-sarcomatous-overgrowth-accompanied-by-lipid-rich-rhabdomyosarcomatous-and-pleomorphic-components-a-case-report
#9
Takeo Nakaya, Hisashi Oshiro, Ayako Takigami, Yoshihiko Kanai, Kenji Tetsuka, Koichi Hagiwara, Hirofumi Fujii, Shunsuke Endo, Akira Tanaka
RATIONALE: Solitary fibrous tumors are mesenchymal tumors presenting as fibroblastic neoplasms with prominent branching vascular patterns, which are often generated from the pleura. Most solitary fibrous tumors are benign; however, some can turn malignant. High-grade sarcomas from solitary fibrous tumors include multidirectional histopathological components. PATIENT CONCERNS: We describe our experience of a giant high-grade sarcoma with mixed components generated from a solitary fibrous tumor of the pleura in a 67-year-old female patient presenting with cough and left-sided chest pain...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29378437/pierre-marie-bamberger-syndrome-and-solitary-fibrous-tumor-a-rare-association
#10
Estefanía Boyer-Duck, Walid Leonardo Dajer-Fadel, Luis Ángel Hernández-Arenas, Marco Polo Macías-Morales, Adriana Rodríguez-Gómez, Catalina Romo-Aguirre
A solitary fibrous tumor originates in the pleura with variable degrees of invasion. Hypertrophic osteoarthropathy, known as Pierre-Marie-Bamberger syndrome, is characterized by clubbing of the fingers due to bone surface and soft tissue calcification, historically known as a bronchogenic carcinoma paraneoplastic syndrome; however, a few cases have been associated with solitary fibrous tumors. We describe the case of a 38-year-old woman who presented with clubbing of the fingers. Studies revealed an intrathoracic fibrous tumor that was successfully treated with improvement in symptoms...
January 1, 2018: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/29372881/clinical-outcomes-of-intracranial-solitary-fibrous-tumor-and-hemangiopericytoma-analysis-according-to-the-2016-who-classification-of-central-nervous-system-tumors
#11
Byung Sup Kim, Yuil Kim, Doo-Sik Kong, Do-Hyun Nam, Jung-Il Lee, Yeon-Lim Suh, Ho Jun Seol
OBJECTIVE The authors conducted this retrospective study to investigate the clinical outcomes of intracranial solitary fibrous tumor (SFT) and hemangiopericytoma (HPC), defined according to the 2016 WHO classification of central nervous system (CNS) tumors. METHODS Histopathologically proven intracranial SFT and HPC cases treated in the period from June 1996 to September 2014 were retrospectively reviewed and analyzed. Two neuropathologists reviewed pathological slides and regraded the specimens according to the 2016 WHO classification...
January 26, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29360078/-solitary-fibrous-tumor-and-doege-potter-syndrome
#12
Fabiana Prado, Juan Pablo Dos Ramos, Nebil Larrañaga, German Espil, Shigeru Kozima
The solitary fibrous tumor is uncommon. Even though it frequently locates in the pleura, a few cases have been reported in the retroperitoneum. Differentiation from other neoplasms is difficult, and therefore the diagnosis is always attained through histological examination. Although solitary fibrous tumors have variable clinical behaviors, a better comprehension of the location and its imaging characteristics would help to decrease the list of differential diagnoses. We report a solitary fibrous tumor located in the retroperitoneum whose diagnosis was confirmed by histological examination...
2018: Medicina
https://www.readbyqxmd.com/read/29349053/myxoid-solitary-fibrous-tumor-on-the-scalp
#13
Ji Hyun Kim, Dong Chul Kim, Ryun Lee, Chi Ho Shin, Yea Sik Han, Sang Hun Chung, So Ya Paik
Myxoid solitary fibrous tumor (SFT) is very rare soft tissue neoplasm. It is microscopically composed of spindle cells which is individually separated by delicate band of collagen fibers. And this tumor cells are immunohisto-chemistrically highlighted by CD34. Myxoid SFT has indolent clinical course and a good prognosis, so it is important to make a diagnosis because of its morphological similarities to myxoid spindle cell neoplasms that have different prognoses and treatment. We report the case of a 20-year-old female with a myxoid SFT found in the left temporo-parietal scalp...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29325251/-extrapleural-solitary-fibrous-tumor-with-uncommon-histology-a-clinicopathologic-analysis-of-7-cases
#14
M Zhao, Z R Yang, Y B Wang, Y Chen, G W Qi, Y J Yan, W J Xu, G Q Ru, X L He
Objective: To investigate the clinicopathologic characteristics, immunophenotypes, and differential diagnostic features of extra-pleural solitary fibrous tumor (SFT) with uncommon histology. Methods: Seven cases of extra-pleural SFT with uncommon histology were collected during January 2015 and December 2016 in Zhejiang Provincal People's Hospital; the clinical and radiologic features, histomorphology, immunophenotype and prognosis were analyzed. EnVision method was used for immunohistochemical staining of STAT6, CD34 and other differential diagnosis associated markers...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29325249/-clinicopathologic-features-of-primary-hepatic-marginal-zone-lymphoma-of-mucosa-associated-lymphoid-tissue-and-hepatic-pseudolymphoma
#15
C Liu, X Li, H Li, Q X Gong, Y Li, Z Wang, Z H Zhang
Objective: To study the clinicopathological features of primary hepatic extranodal marginal zone lymphoma of mucosa associated lymphoid tissue (MALT lymphoma) and hepatic pseudolymphoma, and to discuss their differential diagnosis, treatment and prognosis. Methods: Three primary hepatic MALT lymphomas and two hepatic pseudolymphomas collected from January 2012 to March 2017 in the First Affiliated Hospital of Nanjing Medical University were evaluated by HE and immunohistochemistry(IHC), in-situ hybridization and immunoglobulin (Ig) gene rearrangement detection, and the relevant literature reviewed...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29310366/scrotum-solitary-fibrous-tumor-a-case-report-and-review-of-literature
#16
Xue-Yan Zhao, Ming Zeng, Qiu-Yan Yang, Cai-Ping Jing, Yu Zhang
BACKGROUND: A solitary fibrous tumor (SFT) is a rare clinical tumor, often manifesting as solitary nodules. It is a rare condition that occurs in the scrotum. Currently, no study has reported this condition. CASE SUMMARY: We reported a case of an SFT in a 77-year-old man, and discuss its diagnosis, differential diagnosis, and treatment. Clinical and histopathological features, as well as the EnVision 2-step method, were used to diagnosis the SFT. The results of imaging tests and surgery indicated that the SFT was located in the right scrotum with 2 connected tumor nodules and a clear perimeter...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29297486/mesenchymal-tumors-of-the-prostate
#17
Jesse K McKenney
Mesenchymal tumors of the prostate are rare but often cause considerable diagnostic difficulty when encountered. These may be either benign or malignant and can arise within the prostate gland or in adjacent tissues. This review covers prostatic stromal proliferations (prostatic stromal tumor of uncertain malignant potential and stromal sarcoma), solitary fibrous tumor, myofibroblastic proliferations, smooth muscle neoplasms (leiomyoma and leiomyosarcoma), gastrointestinal stromal tumor, schwannoma, rhabdomyosarcoma, sarcomatoid carcinoma, postradiation sarcoma, and mixed epithelial stromal tumor of the seminal vesicle...
January 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29290323/-dendritic-infraclavicular-fibromyxolipoma-at-the-boundary-between-spindle-cell-lipoma-and-solitary-fibrous-tumour
#18
Inmaculada Ruiz Molina, Eduardo Solís García, Vicente Cívico Amat
Dendritic fibromyxolipoma (DFML) is a rare soft tissue tumor recently described with only 27 cases reported in the literature. None of them have shown recurrence or metastasis after excision. Histologically it is composed of small stellate or spindle cells in a myxoid stroma with abundant collagen bundles mixed with mature adipose tissue. The proliferating cells typically show immunoexpression positive for CD34 and bcl-2. A cytogenetic analysis reveals deletion involving 13q14.3 region. We describe the first reported case to date located in the infraclavicular region...
January 2018: Revista Española de Patología
https://www.readbyqxmd.com/read/29282671/sinonasal-tract-solitary-fibrous-tumor-a-clinicopathologic-study-of-six-cases-with-a-comprehensive-review-of-the-literature
#19
Lester D R Thompson, Sean K Lau
Solitary fibrous tumors (SFTs) are well recognized in the head and neck region, but rarely arise in the sinonasal tract (SNT). Six primary SNT SFTs were identified in the files of Southern California Permanente Medical Group between 2006 and 2017. The patients included five males and one female ranging in age from 33 to 72 years (mean 52 years), most of whom presented clinically with nasal obstruction. Three tumors involved the nasal cavity alone, one involved the paranasal sinuses, and two involved both the nasal cavity and paranasal sinuses...
December 27, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29279705/durable-near-complete-response-to-anti-pd-1-checkpoint-immunotherapy-in-a-refractory-malignant-solitary-fibrous-tumor-of-the-pleura
#20
James T Boothe, G Thomas Budd, Matthew B Smolkin, Patrick C Ma
Solitary fibrous tumor of the pleura is a rare and usually benign primary neoplasm arising from mesenchymal cells of the submesothelial tissue. We present here the case of a patient diagnosed with CD34-positive advanced malignant solitary fibrous tumor of the pleura whose disease failed to respond to combination cytotoxic chemotherapy agents, but demonstrated a prompt near-complete response to checkpoint blockade treatment using the anti-programmed death (PD)-1 monoclonal antibody pembrolizumab, based on tumor molecular profiling revealing tumoral expression positivity for both programmed death-ligand 1 (PD-L1) and PD-1...
September 2017: Case Reports in Oncology
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