keyword
MENU ▼
Read by QxMD icon Read
search

Epithelioid sarcoma

keyword
https://www.readbyqxmd.com/read/29141919/rare-tumors-in-kids-may-respond-to-tazemetostat
#1
(no author information available yet)
In a phase I trial of the EZH2 inhibitor tazemetostat, children with INI1-deficient tumors-including relapsed or refractory malignant rhabdoid tumors, atypical teratoid rhabdoid tumors, epithelioid sarcomas, and poorly differentiated chordomas-responded well to treatment, with some experiencing durable responses.
November 15, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/29136688/-characteristics-of-erg-fli-1-cd34-cd31-and-f%C3%A2-rag-expression-in-hepatic-malignant-vascular-tumors
#2
Z B Wang, X J An, J F Deng, J H Liu, H Y Shi
Objective: To investigate the expression of ERG, Fli-1, CD34, CD31 and factor Ⅷ-related antigen(FⅧRAg) in hepatic malignant vascular tumors. Methods: A retrospective analysis was conducted on 63 cases of primary hepatic malignant vascular tumors and 31 cases of hepatic other malignant spindle cell tumors collected during January 1986 to January 2014. EnVision method was used to detect the expression of ERG, Fli-1, CD34, CD31, FⅧRAg. Results: Sixty-three cases of malignant vascular tumors, including 24 cases of angiosarcoma, 38 cases of epithelioid hemangioendothelioma and 1 case of hepatic Kaposi's sarcoma...
November 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29129333/pitfalls-in-the-interpretation-of-specimens-from-patients-with-testicular-tumours-with-an-emphasis-on-variant-morphologies
#3
REVIEW
Thomas M Ulbright
Accurate diagnosis of primary and metastatic tumours is essential in testicular cancer. While many cases are straightforward, some pose difficulties, especially when variant morphologies occur. Seminoma with 'atypical' features, including increased nuclear pleomorphism and crowding and greater cytoplasmic density with loss of membrane definition, mimics embryonal carcinoma, although ancillary features (fibrous septa, lymphocytes) and immunohistochemistry are of great help. Other deceptive seminoma features include prominent to exclusive intertubular growth, microcystic/tubular patterns, and signet-ring tumour cells...
November 9, 2017: Pathology
https://www.readbyqxmd.com/read/29127695/management-of-the-other-retroperitoneal-sarcomas
#4
REVIEW
Piotr L Rutkowski, John T Mullen
The focus of this review is on the management of the less common sarcomas occurring in the retroperitoneal space, including solitary fibrous tumor (SFT), malignant peripheral nerve sheath tumor (MPNST), perivascular epithelioid cell tumor (PEComa), and undifferentiated pleomorphic sarcoma (UPS) of the psoas muscle. As for other retroperitoneal sarcomas, surgical resection is the mainstay of curative therapy, and multidisciplinary preoperative assessment, including percutaneous needle biopsy for histologic confirmation, is the basis for personalized management, as the surgical management, and the integration of systemic therapy and radiation therapy is unique to each histologic subtype...
November 11, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29104110/pseudomyogenic-hemangioendothelioma-of-skin-bone-and-soft-tissue-a-clinicopathological-immunohistochemical-and-fluorescence-in-situ-hybridization-study
#5
Dinesh Pradhan, Karen Schoedel, Richard L McGough, Sarangarajan Ranganathan, Uma N M Rao
Pseudomyogenic hemangioendothelioma (PHE) is an uncommon neoplasm with propensity for local recurrence. The tumor mimics epithelioid hemangioendothelioma and epithelioid sarcoma, representing a possible diagnostic pitfall. We investigated the clinicopathological, immunohistochemical and fluorescence in situ hybridization features of PHEs. Eight cases of PHE were retrieved from our pathology archives. The clinical and outcome information was available in six patients. In six cases the tumors were located in the lower limb while the upper limb was involved in two cases...
November 2, 2017: Human Pathology
https://www.readbyqxmd.com/read/29079914/mri-features-of-primary-rare-malignancies-of-the-liver-a-report-from-four-university-centres
#6
Richard C Semelka, Nadesan Nimojan, Saman Chandana, Miguel Ramalho, Suzanne L Palmer, Danielle DeMulder, Carolina Parada Villavicencio, John Woosley, Bonnie L Garon, Reena C Jha, Frank H Miller, Ersan Altun
PURPOSE: To determine if rare primary malignancies of the liver may have consistent features on magnetic resonance imaging (MRI). MATERIALS AND METHODS: This IRB-compliant retrospective study reviewed the records from the pathology departments of four university centres over an 11-year period from 2005-2016 to identify rare primary malignant tumours, which were cross-referenced with MRI records. MRI studies of these patients were reviewed to determine if these tumours exhibited consistent and distinctive features...
October 27, 2017: European Radiology
https://www.readbyqxmd.com/read/29076075/proximal-type-epithelioid-sarcoma-in-skull-base-a-pathological-diagnosis-challenge-with-other-intracranial-tumors
#7
Duan Zejun, Yao Kun, Lu Dehong, Qi Xueling
Proximal-type ES (PES) is a rare and aggressive sarcoma originated from soft tissues with uncertain differentiation. It mainly affects middle-aged patients and often locates in proximal extremity and deep-seated tissues. Only one case of PES located in the skull base has been reported to date. Herein, we report two cases of PES occurred in the middle cranial fossa in two middle-aged Chinese women. Microscopically, the tumors were consisted of epithelial-like cells with or without rhabdoid cells. And frequent mitotic activity and coagulation necrosis were present...
October 26, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29072181/primary-clear-cell-sarcoma-of-the-dermis-mimicking-malignant-melanoma
#8
Ifeyinwa E Obiorah, Pauline Brenholz, Metin Özdemirli
BACKGROUND: Clear cell sarcoma is a rare malignant soft tissue neoplasm that typically involves tendons and aponeurosis. Clear cell sarcoma occurring in the dermis is an extremely rare occurrence. It is difficult to differentiate between this neoplasm and dermal malignant melanoma because they both have similar morphologic and immunohistochemical features. Although rare, clear cell sarcoma of the skin typically occur in the extremities. To our knowledge, there are no reported cases of primary clear cell sarcoma of the skin occurring in the neck...
October 26, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/29068073/clinicopathological-analysis-of-myxoid-proximal-type-epithelioid-sarcoma
#9
Yanyang Zhang, Furong Liu, Yuhang Pan, Jing Liang, Ye Jiang, Yi Jin
Proximal-type epithelioid sarcoma (ES) with a diffuse myxoid stroma is rare. Here, we report the case of a 33-year-old man with a perineal mass. Imaging demonstrated the presence of a poorly demarcated 6.9 × 5.3-cm mass in the subcutaneous perineal region. Macroscopic examination showed that the resected tissues were partially necrotic. Histological examination showed that the tumor comprised numerous large or pleomorphic epithelioid cells with large vesicular nuclei and prominent nucleoli. A clear background of necrosis and inflammatory exudates was also present...
October 25, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29034595/adamantinoma-like-ewing-sarcoma-of-the-parotid-gland-cytopathologic-findings-and-differential-diagnosis
#10
Mohammed T Lilo, Justin A Bishop, Matthew T Olson, Syed Z Ali
Adamantinoma-like Ewing sarcoma (AES) is a rare variant of Ewing sarcoma family of tumors (EFTs), primarily affecting bone and soft tissue. AES has mixed features of Ewing sarcoma (ES)/primitive neuroectodermal tumor (PNET) and adamantinoma with a complex immunoprofile and EWSR1 gene rearrangements. Herein, we report a 72-year-old male who presented with left parotid mass, right neck mass and thyroid nodules. Fine needle aspiration of the left parotid mass displayed nests of monotonous epithelioid cells with basaloid features in a background of small round blue cells and lymphocytes...
October 16, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28984342/follicular-dendritic-cell-sarcoma-of-the-larynx-apropos-a-rare-case-with-review-of-the-literature
#11
Ayushi Sahay, Munita Bal, Asawari Patil, Shubhada Kane, Prathamesh Pai
Extranodal follicular dendritic cell sarcomas are extremely rare neoplasms included under the hematolymphoid and dendritic group of neoplasms. Histologically, fascicular, whorled spindle cells with sprinkled lymphocytes are typical; however higher grade epithelioid morphology seen in a subset makes diagnosis of follicular dendritic cell sarcoma challenging. Rarity of occurrence, a wide histologic spectrum and a long list of differential diagnostic entities render follicular dendritic cell sarcoma an under-recognized entity susceptible to diagnostic pitfalls...
October 6, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28939748/in-depth-genetic-analysis-of-sclerosing-epithelioid-fibrosarcoma-reveals-recurrent-genomic-alterations-and-potential-treatment-targets
#12
Elsa Arbajian, Florian Puls, Cristina R Antonescu, M Fernanda Amary, Raf Sciot, Maria Debiec-Rychter, Vaiyapuri Sumathi, Marcus Järås, Linda Magnusson, Jenny Nilsson, Jakob Hofvander, Fredrik Mertens
PURPOSE: Sclerosing epithelioid fibrosarcoma (SEF) is a highly aggressive soft tissue sarcoma closely related to low-grade fibromyxoid sarcoma (LGFMS). Some tumors display morphological characteristics of both SEF and LGFMS, so called hybrid SEF/LGFMS. Despite the overlap of gene fusion variants between these two tumor types, SEF is much more aggressive. The present study aimed to further characterize SEF and hybrid SEF/LGFMS genetically in order to better understand the role of the characteristic fusion genes and possible additional genetic alterations in tumorigenesis...
September 22, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28937375/superficial-cd34-positive-fibroblastic-tumor-a-new-entity-case-report-and-review-of-literature
#13
Neelam Sood, Binit Kumar Khandelia
Earlier, categorized under low grade malignant fibrous histiocytoma and low grade sarcomas, 'superficial CD34 positive fibroblastic tumor', a newly proposed entity, is a low grade mesenchymal tumor of intermediate malignant potential. Morphological features include monomorphic neoplastic spindle cells arranged in a fascicular to storiform pattern along with sheets of pleomorphic epithelioid cells, and multinucleated giant cells with glassy cytoplasm. Diffuse vimentin and characteristic diffuse CD34 positivity is seen in all cases with few showing focal cytokeratin expression...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28905842/malignant-perivascular-epithelioid-cell-tumor-of-the-orbit-report-of-a-case-and-review-of-literature
#14
Md Shahid Alam, Bipasha Mukherjee, S Krishnakumar, Jyotirmay Biswas
Perivascular epithelioid cell tumor (PEComa) is a rare neoplasm considered to arise from myomelanocytic cell lineage. The uterus is reportedly the most common site to be involved. Orbital PEComa is extremely rare with only two cases reported till date. A 5-year-old male presented with a right medial orbital mass for the last 6 months. The patient was diagnosed with alveolar soft part sarcoma elsewhere. Magnetic resonance imaging features were suggestive of lymphangioma with bleeding. The excision biopsy revealed multiple tumor cells comprising epithelioid cells with clear cytoplasm, along with nuclear atypia and mitosis...
September 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28832212/what-factors-influence-the-outcome-of-surgically-treated-soft-tissue-sarcomas-of-the-hand-and-wrist
#15
Matthew T Houdek, Brian E Walczak, Benjamin K Wilke, Sanjeev Kakar, Peter S Rose, Alexander Y Shin
BACKGROUND: Soft tissue sarcomas (STS) of the hand are exceedingly rare. The aim of this study was to review our institution's experience with STS of the hand to identify factors affecting outcomes and survivorship. METHODS: We retrospectively reviewed the records of 46 hand STS treated with definitive surgery at our institution between 1992 and 2013. Pertinent demographics as well as information regarding the surgical procedure, and disease status at latest follow-up were reviewed...
September 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28832074/programmed-death-ligand-1-pd-l1-expression-in-malignant-mesenchymal-tumors
#16
Kemal Kösemehmetoğlu, Ece Özoğul, Berrin Babaoğlu, Gaye Güler Tezel, Gökhan Gedikoğlu
OBJECTIVE: Programmed death ligand 1 (PD-L1) found on tumor cells has recently been reported to have a key role in the development and dissemination of many tumors, such as lung and breast carcinomas. In this study, we retrospectively analyzed PD-L1 expression among different types of sarcomas. MATERIAL AND METHOD: Tissue microarrays of 3-4 mm diameter were composed from paraffin blocks of 222 various sarcomas. Slides prepared from microarrays were stained for PD-L1 antibody (Cell Signaling, E1L3N®) using Leica Bond Autostainer...
2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28805986/histiocytic-sarcoma-new-insights-into-fna-cytomorphology-and-molecular-characteristics
#17
Yin P Hung, Scott B Lovitch, Xiaohua Qian
BACKGROUND: Histiocytic sarcoma (HS) is a rare malignant neoplasm showing morphologic and immunophenotypic features of histiocytes. Molecular characteristics of HS and fine-needle aspiration (FNA) criteria for its diagnosis have not been established. METHODS: A case series of HS in 8 FNA samples from 6 patients was reviewed along with histopathologic and clinical data. Immunohistochemistry was performed on cell blocks (3 cases), core biopsies (5 cases), and surgical specimens (4 cases)...
August 2017: Cancer
https://www.readbyqxmd.com/read/28802505/soft-tissue-tumors-of-uncertain-histogenesis-a-review-for-dermatopathologists
#18
REVIEW
Darya Buehler, Paul Weisman
The mesenchymal tumors discussed herein represent a heterogeneous group of neoplasms with distinctive morphologic, immunophenotypic, and molecular genetic features. These uncommon tumors often arise in the dermis and subcutis and can pose a major diagnostic challenge to dermatopathologists because they closely mimic melanoma, carcinoma, fibrous histiocytoma, schwannoma, or granulomatous inflammation. This article reviews the clinical presentation, histopathology, differential diagnosis, and diagnostic pitfalls of epithelioid sarcoma, clear cell sarcoma, perivascular epithelioid cell tumor, ossifying fibromyxoid tumor, pleomorphic hyalinizing angiectatic tumor, and hemosiderotic fibrolipomatous tumor...
September 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28799063/clinical-outcomes-of-patients-with-epithelioid-sarcomas-impact-and-management-of-nodal-metastasis
#19
Hidetatsu Outani, Yoshinori Imura, Takaaki Tanaka, Satoshi Takenaka, Kazuya Oshima, Kenichiro Hamada, Shigeki Kakunaga, Susumu Joyama, Norifumi Naka, Ikuo Kudawara, Takafumi Ueda, Nobuhito Araki, Hideki Yoshikawa
PURPOSE: An epithelioid sarcoma is a rare histological subtype of a soft tissue sarcoma with a high local recurrence rate, which frequently shows lymph node metastasis. However, because of the rarity of this tumor, the impact of nodal metastasis and its appropriate management remain unclear. The present study investigated the clinical outcomes of patients with epithelioid sarcomas, with a focus on lymph node metastasis. METHODS: We retrospectively evaluated the clinical outcomes of 27 patients with epithelioid sarcomas treated between 1985 and 2015...
August 10, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28766950/imaging-features-of-rare-mesenychmal-liver-tumours-beyond-haemangiomas
#20
REVIEW
Rajesh Thampy, Khaled M Elsayes, Christine O Menias, Perry J Pickhardt, Hyunseon C Kang, Sandeep P Deshmukh, Kareem Ahmed, Brinda Rao Korivi
Tumours arising from mesenchymal tissue components such as vascular, fibrous and adipose tissue can manifest in the liver. Although histopathology is often necessary for definitive diagnosis, many of these lesions exhibit characteristic imaging features. The radiologist plays an important role in suggesting the diagnosis, which can direct appropriate immunohistochemical staining at histology. The aim of this review is to present clinical and imaging findings of a spectrum of mesenchymal liver tumours such as haemangioma, epithelioid haemangioendothelioma, lipoma, PEComa, angiosarcoma, inflammatory myofibroblastic tumour, solitary fibrous tumour, leiomyoma, leiomyosarcoma, Kaposi sarcoma, mesenchymal hamartoma, undifferentiated embryonal sarcoma, rhabdomyosarcoma and hepatic metastases...
November 2017: British Journal of Radiology
keyword
keyword
81660
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"