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https://www.readbyqxmd.com/read/28802503/fibrohistiocytic-tumors
#1
REVIEW
Ryan C Romano, Karen J Fritchie
Fibrohistiocytic tumors are a diverse group of reactive and neoplastic lesions including xanthoma, fibrous histiocytoma and its variants, solitary xanthogranuloma, dermatofibrosarcoma protuberans, and atypical fibroxanthoma. This article reviews some of the more commonly encountered fibrohistiocytic tumors with an emphasis on clinical presentation, macroscopic and histologic characteristics, molecular/cytogenetic findings where applicable, and differential diagnoses.
September 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28802488/characterization-of-surgical-procedures-in-the-spanish-mohs-surgery-registry-regesmohs-for-2013-2015
#2
E de Eusebio Murillo, A Martín Fuentes, V Ruiz-Salas, J R Garcés, R Miñano Medrano, J L López-Estebaranz, T Alonso-Alonso, M Á Rodríguez-Prieto, Y Delgado Jiménez, V Morales, P Redondo Bellón, E Manubens-Mercadé, O Sanmartín-Jiménez, C Guillén Barona, R Cabeza, N Cano, A Toll-Abelló, R Navarro Tejedor, J L Artola Igarza, I Allende Markixana, A Alfaro Rubio, C Ciudad Blanco, H Vázquez-Veiga, L Barchino Ortiz, M A Descalzo, I García-Doval
INTRODUCTION: The Spanish Mohs Surgery Registry is used to collect data on the use and outcomes of Mohs micrographic surgery (MMS) in Spain. The aim of this study was to describe perioperative and intraoperative data recorded for MMS procedures performed between July 2013 (when the registry started) and January 2016. MATERIAL AND METHODS: Prospective cohort study of data from 18 hospitals. The data collected included type of anesthesia, surgical technique, hospital admission, number of Mohs stages, management of preoperative risk factors, additional treatments, previous treatments, type of tumor, operating time, and complications...
August 9, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28795284/dermatofibrosarcoma-protuberans
#3
REVIEW
Alvaro E Acosta, Catalina Santa Vélez
Dermatofibrosarcoma protuberans (DFSP) is a slow growing tumor with a very low metastatic potential but with significant subclinical extension and great capacity for local destruction. Thus, the first surgeon approached with such challenging tumor must attempt to cure the patient with a method that spares healthy tissue and ensures an optimal oncological, functional, and esthetic result. The treatment of DFSP often requires a multidisciplinary approach. Depending on location, dermatologic surgeons, surgical oncologists, head and neck surgeons, neurosurgeons, plastic surgeons, and occasionally medical oncologists may be involved with the management...
August 10, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28776579/significance-of-h3k27me3-loss-in-the-diagnosis-of-malignant-peripheral-nerve-sheath-tumors
#4
Melike Pekmezci, Areli K Cuevas-Ocampo, Arie Perry, Andrew E Horvai
The diagnosis of malignant peripheral nerve sheath tumors can be challenging and other spindle cell sarcomas commonly enter in the differential diagnosis. Loss of trimethylation at lysine 27 of histone-H3 (H3K27me3) by immunohistochemistry was recently described in malignant peripheral nerve sheath tumors. However, its specificity remains controversial. We therefore studied 82 synovial sarcomas, 39 malignant peripheral nerve sheath tumors, and 10 fibrosarcomatous dermatofibrosarcoma protuberans for H3K27me3 loss by immunohistochemistry...
August 4, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28755830/-dermatofibrosarcoma-protuberans-surgical-margins-using-slow-mohs-micrographic-surgery-a-clinical-retrospective-study-about-20-cases
#5
C Verbruggen, A S Ricard, O Cogrel, M Bondaz, S Carrier
OBJECTIVES: The main objective of this study is to determine the necessary surgical margins to obtain a complete R0 resection for head and neck dermatofibrosarcoma protuberans (DFSP) using Slow-Mohs micrographic surgery. The secondary objective is to study the recurrence rate of these tumors. PATIENTS AND METHODS: Slow-Mohs micrographic surgery was used for patients included between 2005 and 2015 at Bordeaux universitary hospital. For each patient the age, the sex and death occurrence, the initial surgical margins, the surgical margins for complete R0 resection, the occurrence of local or general recurrence during follow-up were reported...
July 26, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/28751990/dermal-substitutes-use-in-reconstructive-surgery-for-skin-tumors-a-single-center-experience
#6
Mariane Campagnari, Andrea S Jafelicci, Helio A Carneiro, Eduard R Brechtbühl, Eduardo Bertolli, João P Duprat Neto
Reconstructive surgery following skin tumor resection can be challenging. Treatment options after removing the tumor are skin grafting, local pedicled and axial flaps, or microsurgery for complex and extensive wounds correction. Recently, the use of dermal substitutes has been extended to reconstructive surgery in cutaneous oncology. Objectives. To report both a single-center experience using dermal substitutes in reconstructive surgery for skin malignancies and reconstructive surgery's outcomes. Methods and Results...
2017: International Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28711648/alteration-of-pdgfr%C3%AE-akt-mtor-pathway-signaling-in-fibrosarcomatous-transformation-of-dermatofibrosarcoma-protuberans
#7
Yuka Hiraki-Hotokebuchi, Yuichi Yamada, Kenichi Kohashi, Hidetaka Yamamoto, Makoto Endo, Nokitaka Setsu, Kuma Yuki, Takamichi Ito, Yukihide Iwamoto, Masutaka Furue, Yoshinao Oda
Dermatofibrosarcoma protuberans (DFSP) is a cutaneous mesenchymal tumor of intermediate malignancy and fibroblastic/myofibroblastic differentiation. Fibrosarcomatous (FS) component is a high-grade component of DFSP. The detailed oncogenic difference between DFSP and FS components is not clear. We thus investigated the Akt-mTOR pathway in both components. We used 65 tumor samples obtained from 65 patients. The phosphorylation of Akt-mTOR pathway proteins (Akt, mTOR, 4EBP1, and S6RP) and PDGFRα/β was assessed by immunohistochemical staining, the results of which were confirmed by western blotting...
July 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28699109/malignant-mesenchymal-neoplasms-of-the-dermis-and-subcutis-mimicking-benign-lesions-a-case-based-review
#8
Thomas Mentzel, Thomas Brenn
In this short review, malignant mesenchymal neoplasms of the dermis and subcutis mimicking benign lesions and their differential diagnoses are discussed. These include plaque-like dermatofibrosarcoma protuberans, superficial low-grade fibromyxoid sarcoma, low-grade superficial malignant peripheral nerve sheath tumour, epithelioid sarcoma, pseudomyogenic haemangioendothelioma, Kaposi sarcoma mimicking cavernous haemangioma and benign lymphangioendothelioma, and rare forms of angiosarcoma mimicking a benign vascular lesion...
July 12, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28693264/dermatofibrosarcoma-protuberans-of-the-breast-a-case-report
#9
Kamil Pohlodek, Iveta Mečiarová, Petr Grossmann, Zdeněk Kinkor
Dermatofibrosarcoma protuberans (DFSP) is a rare malignant tumor of subcutaneous tissue characterized by slow infiltrative growth. The tumor occurs in patients of all ages, with the highest frequency occurring between the second and the fifth decades of age. Genetically, DFSP is characterized by a reciprocal translocation t(17;22)(q22;q13), or more often, as a supernumerary ring chromosome involving chromosomes 17 and 22. Standard treatment of a localized tumor is surgical excision with wide margins. In the present study, a case report of a 43-year-old woman with a growing tumor in the left breast is discussed...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28627712/acral-dermatofibrosarcoma-protuberans-with-myoid-differentiation-a-report-of-2-cases
#10
Tariq Al-Zaid, Hatim Khoja
Dermatofibrosarcoma protuberans (DFSP) is a low-grade mesenchymal neoplasm with a tendency for local recurrence; it is rarely metastatic. Dermatofibrosarcoma protuberans typically arises in the trunk and proximal extremities. However, it can arise in unusual sites such as the hands and feet. Several variants have been described, including DFSP with myoid differentiation, which is very uncommon. This variant tends to be observed more with the fibrosarcomatous variant, and it can be either in the form of myoid bundles and nodules with no vascular relationship or represent hyperplastic blood vessels within the tumor...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28622423/-congenital-dermatofibrosarcoma-protuberans-clinically-mimicking-a-melanocytic-nevus-treated-with-serial-excisions
#11
J Laske, M Sergon, T Mentzel, S Beissert, J Maschke
A 9-year-old female patient was referred to our department with the clinical diagnosis of a congenital melanocytic nevus on the back for serial excisions. The child's parents confirmed that the lesion existed since birth. Only little changes in color and size were observed over the years. The lesion was painless. This article is protected by copyright. All rights reserved.
June 16, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28609344/phosphohistone-h3-and-ki67-useful-markers-in-differentiating-dermatofibroma-from-dermatofibrosarcoma-protuberans-and-atypical-fibrohistiocytic-lesions
#12
Atin Agarwal, Arun Gopinath, Michael T Tetzlaff, Victor G Prieto
Dermatofibromas (DF) are common, benign, skin tumors, usually easily differentiated from dermatofibrosarcoma protuberans (DFSP) by the presence of a relative low cellularity, lesser degree of infiltration of subcutaneous tissue, and immunohistochemical pattern (eg, FXIIIa in DF and CD34 in DFSP). Atypical fibrohistiocytic lesions (AFL) have features intermediate to DF and DFSP (trunk location, storiform pattern, infiltration of the subcutaneous tissue, and focal expression of both CD34 and Factor XIIIa). It is unclear if mitotic counts/degree of proliferation is helpful to distinguish DF from DFSP...
July 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28607816/recurrence-case-of-rare-scalp-dermatofibrosarcoma-protuberans-two-case-reports-of-a-wide-radical-excision-craniectomy-bone-involvement-followed-by-cranioplasty-and-reconstruction
#13
Ahmad Faried, Wargian Hadisaputra, Muhammad Z Arifin
BACKGROUND: Dermatofibrosarcoma protuberans (DFSP) is a rare low-grade sarcoma of the fibroblast originating from the dermal layer of the skin, characterized by a locally aggressive growth and high rate of local recurrence. CASE DESCRIPTION: Two patients underwent a wide radical excision of recurrent scalp DFSP which was reconstructed with translational skin flap and split-thickness skin graft. We described above cases several years ago with a local excision of the tumor; recently, they developed local recurrence of DFSP with calvarial involvement...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28607608/clinical-features-pathological-findings-and-treatment-of-recurrent-dermatofibrosarcoma-protuberans
#14
Yanan Li, Chuan Wang, Bo Xiang, Siyuan Chen, Li Li, Yi Ji
Dermatofibrosarcoma protuberans (DESP) is a relatively rare and low-grade tumor of the skin and soft tissue. We review the clinical features, pathological findings and management of recurrent DESP with the aim to improve our understanding of this rare tumor. Fifty-seven patients were diagnosed with recurrent DFSP. The mean age at the presentation of DFSP was 30.9 years. The mean age at diagnosis of DFSP was 40.2 years. Chest wall was the dominant location. The histopathological diagnosis was ordinary DFSP (O-DFSP) in 46 cases and fibrosarcomatous DFSP (FS-DFSP) in 11 cases...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28595245/massively-metastatic-dermatofibrosarcoma-protuberans-with-fibrosarcomatous-transformation-years-after-surgical-resection
#15
Teo Soleymani, Catherine Ni, Anna Laury, Jashin J Wu
No abstract text is available yet for this article.
June 6, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28591457/cutaneous-sarcomas
#16
Judith Kohlmeyer, Susanne Annette Steimle-Grauer, Rüdiger Hein
Cutaneous sarcomas comprise a heterogeneous group of mesenchymal spindle cell tumors of the dermis and subcutis, one of the best-known entities being dermatofibrosarcoma protuberans. Other sarcomas addressed in this review include atypical fibroxanthoma, cutaneous undifferentiated pleomorphic sarcoma, leiomyosarcoma, liposarcoma, and angiosarcoma. With the exception of dermatofibrosarcoma protuberans, which has its peak incidence in middle-aged adults, cutaneous sarcomas usually occur in elderly individuals starting in the sixth or seventh decade of life...
June 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28591446/kutane-sarkome
#17
Judith Kohlmeyer, Susanne Annette Steimle-Grauer, Rüdiger Hein
Cutaneous sarcomas comprise a heterogeneous group of mesenchymal spindle cell tumors of the dermis and subcutis, one of the best-known entities being dermatofibrosarcoma protuberans. Other sarcomas addressed in this review include a typical fibroxanthoma, cutaneous undifferentiated pleomorphic sarcoma, leiomyosarcoma, liposarcoma, and angiosarcoma. With the exception of dermatofibrosarcoma protuberans, which has its peak incidence in middle-aged adults, cutaneous sarcomas usually occur in elderly individuals starting in the sixth or seventh decade of life...
June 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28584757/dermatofibrosarcoma-protuberans-in-a-9-year-old-child
#18
Priyanka Patil, Swagata Tambe, Chitra Nayak, C Ramya
Dermatofibrosarcoma protuberans (DFSP) is an uncommon soft tissue neoplasm of low-to-intermediate grade malignant potential. Childhood onset of DFSP is rare. It is most commonly seen on the trunk and proximal extremities. In children, a high index of suspicion is necessary to avoid delays in diagnosis that can lead to further morbidity. Here, we report a case of DFSP in a 9-year-old female child. Excision biopsy of lesion was performed with 1 cm margin. After confirmation of the diagnosis by histopathology, the patient was observed for recurrence, but there was no recurrence after 1 and half years of follow up...
May 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/28573714/wide-local-excision-vs-mohs-t%C3%A3-bingen-technique-in-the-treatment-of-dermatofibrosarcoma-protuberans-a-two-centre-retrospective-study-and-literature-review
#19
F Veronese, P Boggio, R Tiberio, M Gattoni, P Fava, V Caliendo, E Colombo, P Savoia
BACKGROUND: Dermatofibrosarcoma Protuberans is a rare, low-grade mesenchymal skin tumour, characterized by slow infiltrative growth and common local recurrence, with infrequent distant metastases. OBJECTIVE: The aim of this study is to better clarify clinico-pathological characteristics of this tumour and to evaluate the cure rates of Mohs Tübingen technique (MTT) and wide local excision. Eventually, we perform a literature review to compare our experience with published data...
June 2, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28553740/extragastrointestinal-stromal-tumor-of-the-abdominal-subcutaneous-tissue-report-of-a-very-rare-case-at-an-unusual-site
#20
Xue He, Nannan Chen, Li Lin, Congyang Wang, Yan Wang
Extragastrointestinal stromal tumors (EGISTs) are rare tumors that arise outside the digestive tract. We report a case of an EGIST arising in the subcutaneous tissue of the abdominal wall, which at this site can often be misdiagnosed as dermatofibrosarcoma protuberans. The tumor was surgically resected from a 72-year-old male Chinese Han patient, and pathological examination revealed spindle-shaped tumor cells with eosinophilic cytoplasm and an oval nucleus. Immunohistochemically, the tumor cells showed strong cytoplasmic positivity for CD34, c-KIT (CD117), and DOG1...
January 1, 2017: Journal of International Medical Research
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