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Heinz Kutzner

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https://www.readbyqxmd.com/read/30024414/uncommon-histopathological-variants-of-malignant-melanoma-part-1
#1
Carlo Cota, Andrea Saggini, Viviana Lora, Heinz Kutzner, Arno Rütten, Omar Sangueza, Luis Requena, Lorenzo Cerroni
Despite new horizons opened by recent advances in molecular pathology, histological evaluation still remains the diagnostic gold standard regarding cutaneous melanocytic neoplasms. Several histological variants of melanoma have been described, and their knowledge is crucial for accurate diagnosis and classification of cases with unusual clinicopathological features. Uncommon histological variants of melanoma have been described based on a broad constellation of features, including architectural pattern, stromal alterations, cytological attributes, and other morphological properties...
July 17, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29984282/combined-neodymium-doped-yttrium-aluminum-garnet-laser-and-sclerotherapy-in-gorham-stout-syndrome
#2
Maria Reipschläger, Uwe Huebner, Joerg Seemann, Heinz Kutzner, Peter H Hoeger
Bone involvement is relatively rare in vascular malformations. Gorham-Stout disease, also referred to as vanishing bone disease , is characterized by osteoclast activation and osteolysis caused by proliferating lymphatic endothelial cells. We present the case of a 12-year-old boy who had Gorham-Stout disease at the age of 8 years. The clinical course was complicated by pathological fractures and localized intravascular consumption coagulopathy. Sclerotherapy and embolization therapy led to normalization of the coagulation parameters and significant improvement of the clinical findings...
June 2018: JAAD Case Reports
https://www.readbyqxmd.com/read/29979195/late-onset-facial-papular-elastorrhexis
#3
Carlos Santonja, Silvia Salinas, Luis Requena, Heinz Kutzner, Ricardo Valverde
Papular elastorrhexis, a rare defect of dermal elastic fibers of unknown origin, usually involves the trunk and extremities of children or young adults. We report the case of a 62-year-old woman with multiple soft, skin-colored facial papules with histological findings characteristic of papular elastorrhexis. Awareness of this entity may allow for its proper identification outside the usual clinical setting.
July 3, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29924747/sebaceous-neoplasms-with-rippled-labyrinthine-sinusoidal-petaloid-and-carcinoid-like-patterns-a-study-of-57-cases-validating-their-occurrence-as-a-morphological-spectrum-and-showing-no-significant-association-with-muir-torre-syndrome-or-dna-mismatch-repair
#4
Katharina Wiedemeyer, Liubov Kyrpychova, Özlem Tanas Işikci, Dominic V Spagnolo, Heinz Kutzner, Arno Rütten, Maria T Fernandez-Figueras, Natalja Denisjuk, Saul Suster, Michal Pavlovsky, Fredrik Petersson, Michal Michal, Joyce Lee, Katrin Kerl, Dmitry V Kazakov
Sebaceous neoplasms with an organoid pattern (rippled, labyrinthine/sinusoidal, carcinoid-like, and petaloid) are rare. Previous studies suggested that the above patterns likely represent variations along a morphological continuum. The objectives of this study were to (1) validate this proposition by studying a large number of cases, (2) determine whether there are specific associations with clinical features, (3) establish their frequency, and (4) determine whether they have any association with Muir-Torre syndrome...
July 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29777447/integra-%C3%A2-dermal-regeneration-template-and-split-thickness-skin-grafting-a-therapy-approach-to-correct-aplasia-cutis-congenita-and-epidermolysis-bullosa-in-carmi-syndrome
#5
Julian Trah, Christina Has, Ingrid Hausser, Heinz Kutzner, Konrad Reinshagen, Ingo Königs
The association of junctional epidermolysis bullosa with pyloric atresia (JEB-PA) and aplasia cutis congenita (ACC) was described by El Shafie et al. (J Pediatr Surg 14(4):446-449, 1979) and Carmi et al. (Am J Med Genet 11:319-328, 1982). Most patients die in the first weeks of life, and no curative treatment options are available so far. We describe a patient with JEB-PA and ACC (OMIM # 226730) who was treated for extensive areas of ACC by Integra® -Dermal Regeneration Template and split-thickness skin grafting (STSG)...
June 2018: Dermatology and Therapy
https://www.readbyqxmd.com/read/29766535/deceptively-bland-cutaneous-angiosarcoma-on-the-nose-mimicking-hemangioma-a-clinicopathologic-and-immunohistochemical-analysis
#6
Christina Mitteldorf, Mar Llamas-Velasco, Hans-Joachim Schulze, Kai-Martin Thoms, Thomas Mentzel, Michael Tronnier, Heinz Kutzner
BACKGROUND: We investigated 2 cases of deceptively bland cutaneous angiosarcoma (AS), which showed a uniform clinical presentation with a rapidly growing tumor on the nose. It remains unclear whether this was a primary cutaneous manifestation or a metastasis. Both tumors initially presented a high histologic overlap with a benign vascular tumor. The diagnosis was primarily based on the rapidly progressing clinical course and on the results of the staging procedures. METHODS: Immunohistochemical stains were performed for cytokeratin (AE1/AE3 and MNF116), CD31, ERG, CD34 (HPCA1/my10), D2-40/podoplanin, LYVE-1, Ki67, PHH3, αSMA (1A4), MYC, FOS-B, CAMTA-1, TFE-3, WT1, nestin, VEGFR-2(KDR), VEGFR-3(FLT4), HHV8...
May 15, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29742555/primary-subcutaneous-synovial-sarcoma-first-reported-subcutaneous-case-showing-tle1-immunoreactivity
#7
Victoria Alegría-Landa, Laura Nájera, Dolores Suárez Massa, Gastón Roustan, María Del Río, Heinz Kutzner, Luis Requena
Synovial sarcoma (SS) accounts for 5%-10% of all soft tissue sarcomas. It is a well-defined soft tissue neoplasm with biphasic and monophasic histologic subtypes and unknown histogenesis. It usually occurs in the extremities, especially the thigh-knee region of young adults. Recurrences are frequent and distant metastasis developed in approximately half of the patients. SSs are characterized by a recurrent nonrandom chromosomal translocation, t(X; 18) (p11; q11), which is considered the primary genetic event in more than 90% of cases...
May 8, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29527734/fosb-immunoreactivity-in-endothelia-of-epithelioid-hemangioma-angiolymphoid-hyperplasia-with-eosinophilia
#8
Ana Ortins-Pina, Mar Llamas-Velasco, Sara Turpin, Luís Soares-de-Almeida, Paulo Filipe, Heinz Kutzner
BACKGROUND: Accurate distinction of epithelioid hemangioma (EH) from its malignant mimics is paramount but remains challenging due to its wide morphological spectrum and lack of objective molecular markers. FOSB oncogenic activation was recently identified as a key event in endothelial proliferation. We sought to investigate the FOSB staining pattern in EH with angiolymphoid hyperplasia with eosinophilia (EH-AHLE) morphology and to evaluate its value in differential diagnosis of epithelioid vascular tumors...
June 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29418100/molekulare-diagnostik-von-hautinfektionen-am-paraffinmaterial-%C3%A3-bersicht-und-interdisziplin%C3%A3-rer-konsensus
#9
REVIEW
Cord Sunderkötter, Karsten Becker, Heinz Kutzner, Thomas Meyer, Norbert Blödorn-Schlicht, Udo Reischl, Pietro Nenoff, Walter Geißdörfer, Yvonne Gräser, Mathias Herrmann, Joachim Kühn, Christian Bogdan
Nukleinsäure-Amplifikations-Techniken (NAT), wie die PCR, sind hochsensitiv sowie selektiv und stellen in der mikrobiologischen Diagnostik wertvolle Ergänzungen zur kulturellen Anzucht und Serologie dar. Sie bergen aber gerade bei formalinfixiertem und in Paraffin eingebettetem Gewebe ein Risiko für sowohl falsch negative als auch falsch positive Resultate, welches nicht immer richtig eingeschätzt wird. Daher haben Vertreter der Deutschen Gesellschaft für Hygiene und Mikrobiologie (DGHM) und der Deutschen Dermatologischen Gesellschaft (DDG) einen Konsensus in Form einer Übersichtsarbeit erarbeitet, wann eine NAT am Paraffinschnitt angezeigt und sinnvoll ist und welche Punkte dabei in der Präanalytik und Befundinterpretation beachtet werden müssen...
February 2018: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29418086/molecular-diagnosis-of-skin-infections-using-paraffin-embedded-tissue-review-and-interdisciplinary-consensus
#10
REVIEW
Cord Sunderkötter, Karsten Becker, Heinz Kutzner, Thomas Meyer, Norbert Blödorn-Schlicht, Udo Reischl, Pietro Nenoff, Walter Geißdörfer, Yvonne Gräser, Mathias Herrmann, Joachim Kühn, Christian Bogdan
Nucleic acid amplification techniques (NATs), such as PCR, are highly sensitive and specific methods that have become valuable supplements to culture and serology in the diagnosis of infectious disorders. However, especially when using formalin-fixed and paraffin-embedded tissue, these techniques are associated with both false-negative and false-positive results, a pitfall that is frequently misjudged. Representatives of the German Society of Hygiene and Microbiology (DGHM) and the German Society of Dermatology (DDG) therefore set out to develop a consensus - in the form of a review article - on the appropriate indications for NATs using paraffin-embedded tissue, its contraindications, and the key points to be considered in the pre- and post-analytical phase...
February 2018: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29044701/malignant-pecoma
#11
Daniela Haiges, Philipp Kurz, Helmut Laaff, Frank Meiss, Heinz Kutzner, Kristin Technau-Hafsi
No abstract text is available yet for this article.
January 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28985955/paraprotein-deposits-in-the-skin
#12
REVIEW
Victoria Alegría-Landa, Lorenzo Cerroni, Heinz Kutzner, Luis Requena
Cutaneous manifestations secondary to paraprotein deposits in the skin include a group of different disorders that although rare, may be the first clinical manifestation of the underlying hematologic dyscrasia. In this article we review the clinical manifestations and histopathologic findings of the processes that result from specific deposition of the paraprotein in different structures of the skin. Paraneoplastic processes frequently associated with hematologic malignancies will not be covered in this review...
December 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28917218/erythema-elevatum-diutinum-in-crohn-s-disease-associated-spondyloarthritis-a-rare-vasculitis-an-unusual-association
#13
Maria João Gonçalves, Vasco C Romão, Luís Soares-de-Almeida, Helena Canhão, José Carlos Romeu, Heinz Kutzner, José Alberto Pereira-da-Silva
Erythema elevatum diutinum is a rare neutrophilic dermatoses with vasculitis, which presents as persistent, symmetrical, purple or brownish papules and nodules, mainly in the extensor surface of the limbs. We describe a case of erythema elevatum diutinum and polyarthritis as initial manifestations of Crohn's disease associated spondyloarthritis. A 51-year-old man, from São Tomé e Príncipe, with previous history of treated tuberculosis and chronic hepatitis B infection, was admitted due to 4 months history of polyarthritis, hyperpigmented papules on the extensor surfaces, occasional episodes of bloody mucous diarrhea and significant weight loss...
September 14, 2017: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/28845532/mutational-analysis-using-sanger-and-next-generation-sequencing-in-sporadic-spindle-cell-hemangiomas-a-study-of-19-cases
#14
Roel W Ten Broek, Elise M Bekers, Wendy W J de Leng, Eric Strengman, Bastiaan B J Tops, Heinz Kutzner, Jan Willem Leeuwis, Joost M van Gorp, David H Creytens, Thomas Mentzel, Paul J van Diest, Astrid Eijkelenboom, Uta Flucke
Spindle cell hemangioma (SCH) is a distinct vascular soft-tissue lesion characterized by cavernous blood vessels and a spindle cell component mainly occurring in the distal extremities of young adults. The majority of cases harbor heterozygous mutations in IDH1/2 sporadically or rarely in association with Maffucci syndrome. However, based on mosaicism and accordingly a low percentage of lesional cells harboring a mutant allele, detection can be challenging. We tested 19 sporadic SCHs by Sanger sequencing, multiplex ligation-dependent probe amplification (MLPA), conventional next generation sequencing (NGS), and NGS using a single molecule molecular inversion probes (smMIP)-based library preparation to compare their diagnostic value...
December 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28700372/immunohistochemical-demonstration-of-parvovirus-b19-viral-protein-2-in-periflexural-exanthema-in-an-adult-supporting-antibody-dependent-enhancement-as-means-of-endothelial-uptake-of-the-virus
#15
Carlos Santonja, Úrsula Pielasinski, Jorge Polo, Heinz Kutzner, Luis Requena
Human parvovirus B19 (B19V) causes a number of skin exanthemas and has been related to both cutaneous and systemic diseases. Tropism of the virus for the rapidly proliferating erythroid progenitor cells in the bone marrow and fetal liver explains the pathogenesis of anemia and fetal hydrops. The cutaneous lesions of erythema infectiosum and other B19V-related exanthemas have been attributed to the deposition of immune complexes in the skin. We report on the immunohistochemical detection of B19V protein in the cytoplasm of dermal endothelial cells in a case of periflexural exanthema in a 28-year-old woman...
February 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28632950/fibroblastic-connective-tissue-nevus-clinicopathological-and-immunohistochemical-study-of-14-cases
#16
Ilaria Pennacchia, Heinz Kutzner, Dmitry V Kazakov, Thomas Mentzel
BACKGROUND: We present herein a series of 14 lesions showing overlapping features with the newly defined benign cutaneous mesenchymal neoplasm labeled as fibroblastic connective tissue nevus (FCTN). METHODS AND RESULTS: Total of 8 patients were male and 5 were female, ranging in age from 1 to 56 years. Lesions appeared as isolated nodules or plaques on the trunk (7 cases), the limbs (4 cases) and the neck (2 cases). Histologically, all cases were composed of bundles of bland spindle cells of fibroblastic/myofibroblastic lineage irregularly branching within the reticular dermis and along fibrous septa in the subcutis...
October 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28622428/cutaneous-pseudomyogenic-epithelioid-sarcoma-like-haemangioendothelioma-fosb-immunohistochemistry-demonstrating-the-serpine1-fosb-fusion-gene
#17
LETTER
V Alegría-Landa, C Santonja, M Jo-Velasco, H Kutzner, L Requena
No abstract text is available yet for this article.
December 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28505007/al-amyloidoma-of-the-skin-subcutis-cutaneous-amyloidosis-plasma-cell-dyscrasia-or-a-manifestation-of-primary-cutaneous-marginal-zone-lymphoma
#18
Noreen M Walsh, Ian Marie Lano, Peter Green, Christopher Gallant, Sylvia Pasternak, Thai Yen Ly, Luis Requena, Heinz Kutzner, Andreas Chott, Lorenzo Cerroni
It is unclear whether AL amyloidoma of the skin/subcutis represents a distinct entity, an indolent precursor of systemic amyloidosis, or a manifestation of cutaneous marginal zone lymphoma (cMZL). We collected 10 cases of cutaneous AL amyloidoma in order to better characterize the clinicopathologic features of this elusive entity (M:F=4:6; median age: 62.5 y, range: 31 to 82 y). Nine patients had a solitary nodule or plaque on the lower extremity (n=7), upper extremity (n=1), or chin (n=1). One patient had an AL amyloidoma on the right thigh and a second lesion on the right arm showing histopathologic features of cMZL without amyloid deposits...
August 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28431412/cutaneous-malignant-melanoma-with-rhabdoid-morphology-and-smooth-muscle-differentiation-a-challenging-histopathologic-diagnosis
#19
REVIEW
Lucía Prieto-Torres, Victoria Alegría-Landa, Concepción Llanos, Alicia Córdoba, Heinz Kutzner, Luis Requena
Divergent differentiation or metaplastic change is a rare feature exhibited occasionally in malignant melanoma (MM), which is characterized by the development of morphologically, immunochemically, and/or ultrastructurally nonmelanocytic cells within the tumor. Smooth muscle differentiation in MM is an exceedingly rare phenomenon reported only in a few cases in the literature. We report the case of a 69-year-old woman who presented with a pure dermal amelanotic MM with smooth muscle cell differentiation and an area of rhabdoid morphology, which made the accurate histopathologic diagnostic of MM challenging...
May 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28409567/sf3b1-and-bap1-mutations-in-blue-nevus-like-melanoma
#20
Klaus G Griewank, Hansgeorg Müller, Louise A Jackett, Michael Emberger, Inga Möller, Johannes Ap van de Nes, Lisa Zimmer, Elisabeth Livingstone, Thomas Wiesner, Simone L Scholz, Ioana Cosgarea, Antje Sucker, Tobias Schimming, Uwe Hillen, Bastian Schilling, Annette Paschen, Henning Reis, Thomas Mentzel, Heinz Kutzner, Arno Rütten, Rajmohan Murali, Richard A Scolyer, Dirk Schadendorf
Blue nevi are melanocytic tumors originating in the cutaneous dermis. Malignant tumors may arise in association with or resembling blue nevi, so called 'blue nevus-like melanoma', which can metastasize and result in patient death. Identifying which tumors will behave in a clinically aggressive manner can be challenging. Identifying genetic alterations in such tumors may assist in their diagnosis and prognostication. Blue nevi are known to be genetically related to uveal melanomas (eg, both harboring GNAQ and GNA11 mutations)...
July 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
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