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Leiomyosarcoma

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https://www.readbyqxmd.com/read/29333025/primary-leiomyosarcoma-of-breast-presenting-with-metastasis-an-atypical-presentation-with-dismal-prognosis
#1
Garima Singh, Deepti Sharma, Surbhi Goyal
Leiomyosarcoma is an extremely uncommon subtype of breast sarcoma, with <50 cases reported in the English literature till date. Patients usually present at an early stage and follow an indolent course. We reported an unusual case of leiomyosarcoma of breast in a post -menopausal female,presented with right side breast lump and pain right side hip. Histomorphological evaluation and immunohistochemistry confirmed the diagnosis. The patient received palliative radiotherapy 20 Gy in 5 fractions to right iliac bone and was started on chemotherapy comprising of docetaxel and epirubicin...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29332133/fumarate-hydratase-fh-deficiency-in-uterine-leiomyomas-recognition-by-histological-features-versus-blind-immunoscreening
#2
Lisa Siegler, Ramona Erber, Stefanie Burghaus, Tobias Brodkorb, David Wachter, Nafisa Wilkinson, James Bolton, Helen Stringfellow, Florian Haller, Matthias W Beckmann, Arndt Hartmann, Abbas Agaimy
Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) syndrome is a rare autosomal dominant disease caused by germline mutations in the fumarate hydratase (FH) gene. Affected individuals develop cutaneous and uterine leiomyomas and aggressive RCC. To date, only few publications described the frequency and morphology of FH-deficient uterine leiomyomas. We reviewed 22 cases collected over 8 years from routine and consultation files based on distinctive histological features. In addition, we screened 580 consecutive uterine leiomyomas from 484 patients, 23 extra-uterine and 8 uterine leiomyosarcomas, and 6 leiomyomas with bizarre nuclei for FH loss using immunohistochemistry (IHC) on tissue microarrays (TMAs)...
January 13, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29327710/genome-profiling-is-an-efficient-tool-to-avoid-the-stump-classification-of-uterine-smooth-muscle-lesions-a-comprehensive-array-genomic-hybridization-analysis-of-77-tumors
#3
Sabrina Croce, Agnès Ducoulombier, Agnès Ribeiro, Tom Lesluyes, Jean-Christophe Noel, Frédéric Amant, Louis Guillou, Eberhard Stoeckle, Mojgan Devouassoux-Shisheboran, Nicolas Penel, Anne Floquet, Laurent Arnould, Frédéric Guyon, Florence Mishellany, Camille Chakiba, Tine Cuppens, Michal Zikan, Agnès Leroux, Eric Frouin, Isabelle Farre, Catherine Genestie, Isabelle Valo, Gaëtan MacGrogan, Frédéric Chibon
The diagnosis of a uterine smooth muscle lesion is, in the majority of cases, straightforward. However, in a small number of cases, the morphological criteria used in such lesions cannot differentiate with certainty a benign from a malignant lesion and a diagnosis of smooth muscle tumor with uncertain malignant potential (STUMP) is made. Uterine leiomyosarcomas are often easy to diagnose but it is difficult or even impossible to identify a prognostic factor at the moment of the diagnosis with the exception of the stage...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29324399/primary-intracranial-leiomyosarcoma-in-an-immunocompetent-patient-case-report-and-review-of-the-literature
#4
REVIEW
Shannon J Gallagher, Stephen A Rosenberg, David Francis, Shahriar Salamat, Steven P Howard, Randall J Kimple
Primary leiomyosarcoma is a rare tumor in the CNS, with few reported cases. Here, we describe a case of a primary intracranial leiomyosarcoma of the tentorium cerebelli. A 43-year-old woman presented with headache, acute vision loss, and difficulty speaking. MRI revealed a large heterogeneous-enhancing occipital mass, which was subsequently resected and diagnosed as a primary intracranial leiomyosarcoma. The patient went onto adjuvant radiotherapy delivering 60 Gy in 30 fractions. These tumors are exceedingly rare in immunocompetent individuals...
January 6, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29323080/recurrent-leiomyosarcoma-scrotum-an-important-differential-in-scrotal-masses
#5
Ranjan Agrawal, Miti Gupta, Nitesh Mohan, Jagdamba Sharan, Parbodh Kumar
Soft tissue sarcomas of the genitourinary tract are rare. Paratesticular sarcomas are extremely rare with majority of scrotal masses localizing to the testis and being neoplastic in nature. Paratesticular leiomyosarcomas (LMSs) are located in the spermatic cord, epididymis, or scrotum. However, their location in the scrotal skin or subcutaneous tissue is extremely rare. Only 10 cases have been reported from India previously. Ours is the 11th case. A 50-year-old male presented with a recurrent scrotal mass which was painless and gradually increasing in size...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321523/integrative-genomic-and-transcriptomic-analysis-of-leiomyosarcoma
#6
Priya Chudasama, Sadaf S Mughal, Mathijs A Sanders, Daniel Hübschmann, Inn Chung, Katharina I Deeg, Siao-Han Wong, Sophie Rabe, Mario Hlevnjak, Marc Zapatka, Aurélie Ernst, Kortine Kleinheinz, Matthias Schlesner, Lina Sieverling, Barbara Klink, Evelin Schröck, Remco M Hoogenboezem, Bernd Kasper, Christoph E Heilig, Gerlinde Egerer, Stephan Wolf, Christof von Kalle, Roland Eils, Albrecht Stenzinger, Wilko Weichert, Hanno Glimm, Stefan Gröschel, Hans-Georg Kopp, Georg Omlor, Burkhard Lehner, Sebastian Bauer, Simon Schimmack, Alexis Ulrich, Gunhild Mechtersheimer, Karsten Rippe, Benedikt Brors, Barbara Hutter, Marcus Renner, Peter Hohenberger, Claudia Scholl, Stefan Fröhling
Leiomyosarcoma (LMS) is an aggressive mesenchymal malignancy with few therapeutic options. The mechanisms underlying LMS development, including clinically actionable genetic vulnerabilities, are largely unknown. Here we show, using whole-exome and transcriptome sequencing, that LMS tumors are characterized by substantial mutational heterogeneity, near-universal inactivation of TP53 and RB1, widespread DNA copy number alterations including chromothripsis, and frequent whole-genome duplication. Furthermore, we detect alternative telomere lengthening in 78% of cases and identify recurrent alterations in telomere maintenance genes such as ATRX, RBL2, and SP100, providing insight into the genetic basis of this mechanism...
January 10, 2018: Nature Communications
https://www.readbyqxmd.com/read/29321409/pulmonary-embolism-caused-by-intravenous-leiomyosarcoma-of-the-lower-limb
#7
Soichiro Kado, Masahide Goto, Hidetsugu Yamao, Toru Tsukada, Masataka Sato, Yoshifumi Uekusa
Pulmonary embolism (PE) is usually caused by thrombosis or tumor. We report the long-term survival of a patient with PE due to a leiomyosarcoma in the deep vein. A 71-year-old woman complained of dyspnea and swelling of the left lower limb. Computed tomography revealed filling defects in the pulmonary arteries and deep vein. She was diagnosed with PE caused by venous thrombosis and treated with anticoagulant therapy. Her symptoms were prolonged, and D-dimer tests remained negative. Biopsy of the substance in the deep vein revealed leiomyosarcoma...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29318761/suitability-of-the-cellienttm-cell-block-method-for-diagnosing-soft-tissue-and-bone-tumors
#8
W Song, B M van Hemel, A J H Suurmeijer
BACKGROUND: The diagnosis of tumors of soft tissue and bone (STB) heavily relies on histological biopsies, whereas cytology is not widely used. CellientTM cell blocks often contain small tissue fragments. In addition to Hematoxylin and Eosin (H&E) interpretation of histological features, immunohistochemistry (IHC) can be applied after optimization of protocols. The objective of this retrospective study was to see whether this cytological technique allowed us to make a precise diagnosis of STB tumors...
January 10, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29312765/primary-breast-leiomyosarcoma-and-synchronous-homolateral-lung-cancer-a-case-report
#9
Alberto Testori, Stefano Meroni, Emanuele Voulaz, Marco Alloisio, Rita De Sanctis, Paola Bossi, Umberto Cariboni, Matilde De Simone, Ugo Cioffi
Radiological and histological features of breast leiomyosarcoma can mimic a wide variety of other breast lesions, such as mesenchymal tumors, breast lymphomas, poorly differentiated carcinomas and metaplastic breast carcinomas. The authors present the case of a 62-year-old woman with a primary breast leiomyosarcoma with synchronous ipsilateral lung adenocarcinoma. The latter was an incidental finding during pre-surgical staging examinations. Clinicopathological, immunophenotypic and imaging features cancer are described...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29308922/uterine-smooth-muscle-tumors-with-hyperintense-area-on-t1-weighted-images-differentiation-between-leiomyosarcomas-and-leiomyomas
#10
Tomohiro Ando, Hiroki Kato, Tatsuro Furui, Ken-Ichirou Morishige, Satoshi Goshima, Masayuki Matsuo
OBJECTIVE: Hyperintense area on T1-weighted images (T1 HIA) have been reported as suggestive features of uterine leiomyosarcoma (LMS), but differentiating LMS from leiomyoma (LM) is often difficult. This study aimed to evaluate the differences between uterine LMS and LM demonstrating intratumoral T1 HIA. METHODS: MR imaging was performed in 509 patients with 1,137 uterine smooth muscle tumors [14 LMSs, five smooth muscle tumors of uncertain malignant potential (STUMPs), and 1,118 LMs] which exceeded 3 cm in diameter...
January 8, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29308311/increased-infiltration-of-m2-macrophages-t-cells-and-pd-l1-expression-in-high-grade-leiomyosarcomas-supports-immunotherapeutic-strategies
#11
Marie Kostine, Inge H Briaire-de Bruijn, Arjen H G Cleven, Carly Vervat, Willem E Corver, Marco W Schilham, Els Van Beelen, Hester van Boven, Rick L Haas, Antoine Italiano, Anne-Marie Cleton-Jansen, Judith V M G Bovée
Background: Immunotherapy may be a rational strategy in leiomyosarcoma (LMS), a tumor known for its genomic complexity. As a prerequisite for therapeutic applications, we characterized the immune microenvironment in LMS, as well as its prognostic value. Methods: CD163+ macrophages, CD3+ T-cells, PD-L1/PD-L2 and HLA class I expression (HCA2, HC10 and β2m) were evaluated using immunohistochemistry in primary tumors (n = 75), local relapses (n = 6) and metastases (n = 19) of 87 LMS patients, as well as in benign leiomyomas (n = 7)...
2018: Oncoimmunology
https://www.readbyqxmd.com/read/29307622/mvp-immunohistochemistry-is-a-useful-adjunct-in-distinguishing-leiomyosarcoma-from-leiomyoma-and-leiomyoma-with-bizarre-nuclei
#12
Nicholas J Lintel, Stephen A Luebker, Subodh M Lele, Scott A Koepsell
Morphologically, distinguishing between leiomyoma (LM) and leiomyosarcoma (LMS) is not always straightforward, especially with benign variants such as bizarre leiomyoma (BLM). To identify potential markers of malignancy in uterine smooth muscle tumors, proteomic studies were performed followed by assessment of protein expression by immunohistochemistry. Archival formalin-fixed paraffin-embedded (FFPE) tissues from tumors (n=23) diagnosed as LM, BLM and LMS (using published criteria) were selected for the study...
January 4, 2018: Human Pathology
https://www.readbyqxmd.com/read/29305094/renal-function-preservation-in-surgical-resection-of-primary-inferior-vena-cava-leiomyosarcoma-involving-the-renal-veins
#13
Duan Liu, Hua-Liang Ren, Bao Liu, Jiang Shao, Yue-Xin Chen, Xiao-Jun Song, Zhi-Li Liu, Yu Chen, Yong-Jun Li, Chang-Wei Liu, Yue-Hong Zheng
OBJECTIVE: This retrospective study aimed to show the practice of preserving renal function during curative resection of inferior vena cava leiomyosarcoma (IVCL) involving the renal veins at a single institution over a 7 year period. MATERIALS AND METHODS: From February 2009 to February 2017, 10 patients (6 women; median age 49 years) with IVCL involving the renal veins were treated surgically at Peking Union Medical College Hospital. En bloc resections were performed in all patients, and the renal outflows were preserved in eight patients using a new method: venoplasty of the renal ostia (VRO)...
January 2, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29303932/the-clinicopathological-study-of-21-cases-with-uterine-smooth-muscle-tumors-of-uncertain-malignant-potential-centralized-review-can-purify-the-diagnosis
#14
Derman Basaran, Alp Usubutun, Mehmet Coskun Salman, Mehmet Ali Narin, Gokhan Boyraz, Osman Turkmen, Gunsu Comert Kimyon, Alper Karalok, Dilek Bulbul, Taner Turan, Nejat Ozgul, Kunter Yuce
OBJECTIVE: The objective of this study was to investigate the clinicopathological features and factors associated with recurrence in patients with uterine smooth muscle tumor of uncertain malignant potential (STUMP). METHODS: Forty-six cases diagnosed between 2000 and 2014 from 2 tertiary centers underwent blind slide review. Initial diagnosis included smooth muscle tumors with equivocal diagnosis, STUMPs, and cases that were named as leiomyosarcomas (LMS) or low-grade LMS despite not fulfilling the Stanford criteria...
January 4, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29298793/spontaneous-rupture-of-uterine-smooth-muscle-tumour-presenting-acute-abdominal-pain-and-haemoperitoneum
#15
Hanako Oda, Hiroshi Hirakawa
Uterine smooth muscle tumours are histologically categorised into benign leiomyoma, malignant leiomyosarcoma or smooth muscle tumours of uncertain malignant potentials (STUMPs).1 Common symptoms of uterine tumours are hypermenorrhea, dysmenorrhea, lumbago or irregular genital bleeding. We experienced a case of uterine tumour with atypical clinical behaviour. A 40-year-old woman who had been diagnosed with leiomyoma presented with severe abdominal pain and intraperitoneal haemorrhage. By emergent surgery, we found that the uterine tumour had ruptured spontaneously...
January 3, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29297486/mesenchymal-tumors-of-the-prostate
#16
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/29295562/oncomirs-expression-profiling-in-uterine-leiomyosarcoma-cells
#17
Bruna Cristine de Almeida, Natalia Garcia, Giovana Maffazioli, Laura Gonzalez Dos Anjos, Edmund Chada Baracat, Katia Candido Carvalho
MicroRNAs (miRNAs) are small non-coding RNAs that act as regulators of gene expression at the post-transcriptional level. They play a key role in several biological processes. Their abnormal expression may lead to malignant cell transformation. This study aimed to evaluate the expression profile of 84 miRNAs involved in tumorigenesis in immortalized cells of myometrium (MM), uterine leiomyoma (ULM), and uterine leiomyosarcoma (ULMS). Specific cell lines were cultured and qRT-PCR was performed. Thirteen miRNAs presented different expression profiles in ULM and the same thirteen in ULMS compared to MM...
December 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29286973/a-collision-tumor-involving-a-primary-leiomyosarcoma-of-the-lower-extremity-and-a-metastatic-medullary-thyroid-carcinoma-a-case-report
#18
Daniel C Austin, Jim S Wu, Dimitrios Spentzos, Jeffrey D Goldsmith, Megan E Anderson
CASE: A 49-year-old man presented with a rapidly growing thigh mass. Histologic analyses demonstrated separate regions that were consistent with a collision tumor composed of a primary leiomyosarcoma and a metastatic medullary thyroid carcinoma. After responding to chemotherapy, the patient underwent resection of the tumor and a total thyroidectomy; he was disease-free 9 years after the diagnosis. CONCLUSION: A wide diagnostic differential and thorough histologic analysis are necessary in patients presenting with neoplasms of the extremities...
October 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29286183/leiomyosarcoma-of-the-head-and-neck-a-17-year-single-institution-experience-and-review-of-the-national-cancer-data-base
#19
Alan D Workman, Douglas R Farquhar, Robert M Brody, Arjun K Parasher, Ryan M Carey, Michael T Purkey, Danish A Nagda, John S Brooks, Lee P Hartner, Jason A Brant, Jason G Newman
BACKGROUND: Leiomyosarcoma is a rare neoplasm of the head and neck. The purpose of this study was to present our single-institution case series of head and neck leiomyosarcoma and a review of cases in the National Cancer Data Base (NCDB). METHODS: Patients with head and neck leiomyosarcoma at the University of Pennsylvania and in the NCDB were identified. Demographic characteristics, tumor factors, treatment paradigms, and outcomes were evaluated for prognostic significance...
December 29, 2017: Head & Neck
https://www.readbyqxmd.com/read/29279795/primary-intracranial-leiomyosarcoma-presenting-with-massive-peritumoral-edema-and-mass-effect-case-report-and-literature-review
#20
Sachidanand Gautam, Rajesh K Meena
Background: Primary intracranial leiomyosarcomas (LMSs) are unusual tumors of the central nervous system (CNS) affecting all age groups, and are recently, becoming more prevalent in immunosuppressive conditions such as in patients with human immunodeficiency virus (HIV) infection. However, only a few CNS LMS case reports exist in the English literature, on the occurrence of this rare entity in immunocompetent adults. Even, rarer is a purely intraparenchymal occurrence without any dural attachment in afflicted individuals...
2017: Surgical Neurology International
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