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Pseudolymphoma

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https://www.readbyqxmd.com/read/29760628/hirudotherapy-a-rare-cause-of-pseudolymphoma
#1
Małgorzata Tupikowska, Zdzisław Woźniak, Marta Wojciechowska-Zdrojowy, Joanna Maj, Alina Jankowska-Konsur
No abstract text is available yet for this article.
April 2018: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29719022/approach-to-dermal-based-lymphoid-infiltrates-and-proliferations
#2
Yann Charli-Joseph, Sonia Toussaint-Claire, Carmen Lome-Maldonado, Daniel Montante-Montes de Oca, Carlos Ortiz-Hidalgo
The histopathological diagnosis of dermal-based lymphoid infiltrates and proliferations is often challenging due to the vast list of biologically diverse entities that archetypally or occasionally center in the mid-dermis, especially because significant overlap exists in their clinical, histopathologic, and immunophenotypic features. The differential diagnosis includes reactive infiltrates in common and rare inflammatory dermatoses, benign conditions that may mimic lymphoid neoplasms (pseudolymphomas), and true clonal proliferations arising either primarily in the skin or rarely in extracutaneous tissues with secondary cutaneous dissemination...
March 2018: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29615424/cutaneous-lymphoid-hyperplasia-pseudolymphoma
#3
Linghong Linda Zhou, Nisha Mistry
No abstract text is available yet for this article.
April 3, 2018: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/29524282/cutaneous-pseudolymphoma-caused-by-poly-implant-proth%C3%A3-se-breast-implants
#4
LETTER
O Y Olisova, O V Grabovskaya, N P Teplyuk, A S Tertychnyy, V A Varshavsky, E V Grekova
No abstract text is available yet for this article.
March 10, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29517544/fdg-pet-ct-in-2-cases-of-hepatic-pseudolymphoma
#5
Xinping Zhong, Aisheng Dong, Hui Dong, Yang Wang
Hepatic pseudolymphoma, also known as reactive lymphoid hyperplasia or nodular lymphoid hyperplasia, is a rare benign lymphoproliferative lesion. Preoperative diagnosis of hepatic pseudolymphoma is challenging. We present 2 cases of hepatic pseudolymphoma with focal intense FDG uptake on FDG PET/CT mimicking malignancy. These 2 cases suggest that hepatic pseudolymphoma should be considered as a rare differential diagnosis in patients with focal hypermetabolic hepatic lesion.
May 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29481902/panel-sequencing-shows-recurrent-genetic-fas-alterations-in-primary-cutaneous-marginal-zone-lymphoma
#6
Katja Maurus, Silke Appenzeller, Sabine Roth, Jochen Kuper, Simone Rost, Svenja Meierjohann, Panagiota Arampatzi, Matthias Goebeler, Andreas Rosenwald, Eva Geissinger, Marion Wobser
Primary cutaneous marginal zone lymphoma (PCMZL) represents an indolent subtype of non-Hodgkin lymphoma that is clinically characterized by slowly growing skin tumors with a very low propensity for systemic dissemination. The underlying genetic basis of PCMZL has not been comprehensively elucidated. To gain deeper insight into the molecular pathogenesis of PCMZL, we performed hybridization-based panel sequencing of 38 patients with well-characterized PCMZL. In 32 of the 38 patients, we identified genetic alterations within 39 selected target genes...
February 23, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29469222/borrelia-burgdorferi-infection-and-lyme-disease-in-north-american-horses-a-consensus-statement
#7
T J Divers, R B Gardner, J E Madigan, S G Witonsky, J J Bertone, E L Swinebroad, S E Schutzer, A L Johnson
Borrelia burgdorferi infection is common in horses living in Lyme endemic areas and the geographic range for exposure is increasing. Morbidity after B. burgdorferi infection in horses is unknown. Documented, naturally occurring syndromes attributed to B. burgdorferi infection in horses include neuroborreliosis, uveitis, and cutaneous pseudolymphoma. Although other clinical signs such as lameness and stiffness are reported in horses, these are often not well documented. Diagnosis of Lyme disease is based on exposure to B...
March 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29392361/hepatic-pseudolymphoma-imaging-features-on-dynamic-contrast-enhanced-mri-and-diffusion-weighted-imaging
#8
Yang Zhou, XiaoLin Wang, Chen Xu, GuoFeng Zhou, MengSu Zeng, PengJu Xu
PURPOSE: To investigate dynamic contrast-enhanced (DCE) MR findings and diffusion-weighted imaging (DWI) characteristics of hepatic pseudolymphoma. MATERIALS AND METHODS: The MR data of 20 lesions in 14 patients with histopathologically proven hepatic pseudolymphoma were retrospectively analyzed. All patients underwent dynamic gadopentetate dimeglumine-enhanced MR imaging and DWI. Morphologic characteristics and signal features on T1- and T2-weighted images (T1WI, T2WI), and DCE pattern were qualitatively evaluated...
February 1, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29386829/histopathologic-finding-of-perieschar-lesions-in-tsutsugamushi-disease-shows-lymphocytic-vasculitis-mimicking-angiocentric-lymphoma
#9
Min Soo Jang, Jong Bin Park, Kang Hoon Lee, Ji Yun Jang, Myeong Hyeon Yang, Joon Hee Kim, Hyun Hwangbo, Taek Geun Lee, Kee Suck Suh
Background: Tsutsugamushi disease is an acute, febrile, infectious disease caused by Orientia tsutsugamushi . Several studies investigating the histopathologic findings of eschars in tsutsugamushi disease reported leukocytoclastic vasculitis and neutrophil infiltration as the major findings. However, these findings may result from secondary changes following tissue necrosis. The histopathologic findings of perieschar lesions may be important to understand the primary changes associated with tsutsugamushi disease...
February 2018: Annals of Dermatology
https://www.readbyqxmd.com/read/29369392/cutaneous-intravascular-cd30-t-cell-pseudolymphoma-occurring-in-a-regressing-keratoacanthoma
#10
A Kailas, D M Elston, S E Crater, C A Cerruto
Cutaneous intravascular CD30+ pseudolymphoma is an uncommon incidental finding that may mimic intravascular or angiotropic lymphoma. We describe a 78-year-old female with a traumatized regressing keratoacanthoma on her left cheek. A shave biopsy was performed which revealed intravascular staining of atypical lymphocytes positive for CD45, CD3 and CD30. Clinical exam revealed no other evidence of lymphoma, the patient denied constitutional symptoms, and routine blood work was normal. The patient is healthy and doing well 28 months after her first visit...
January 25, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29361381/drug-induced-pseudolymphoma
#11
REVIEW
Cynthia M Magro, Brianne H Daniels, A Neil Crowson
Atypical lymphocytic infiltrates of the skin comprise a broad spectrum of entities ranging from benign infiltrates to those that are malignant. Many of these infiltrates are in fact reactive lymphomatoid ones related to drug therapy falling under the general category of drug associated pseudolymphoma. Within this nosologic umbrella are nodular and diffuse infiltrates resembling low grade T and B cell lymphoma consistent with lymphocytoma cutis, drug associated reversible T cell dyscrasias which draw a strong morphologic and phenotypic parallel with mycosis fungoides and the various pre-lymphomatous T cell dyscrasias, and angiocentric CD30 positive infiltrates mirroring lymphomatoid papulosis...
January 17, 2018: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29325249/-clinicopathologic-features-of-primary-hepatic-marginal-zone-lymphoma-of-mucosa-associated-lymphoid-tissue-and-hepatic-pseudolymphoma
#12
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/29193201/red-tattoo-related-mycosis-fungoides-like-cd8-pseudolymphoma
#13
Brian J King, Julia S Lehman, William R Macon, Gabriel F Sciallis
Cutaneous reactions to red tattoo pigment rarely manifest as pseudolymphomatous reactions. We describe an exceedingly rare case of red tattoo-related T-cell predominant pseudolymphoma microscopically mimicking mycosis fungoides. Careful clinicopathological correlation was required to obtain the correct diagnosis and aid in an effective treatment course.
March 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29148536/characterization-of-foreign-materials-in-paraffin-embedded-pathological-specimens-using-in-situ-multi-elemental-imaging-with-laser-spectroscopy
#14
Benoit Busser, Samuel Moncayo, Florian Trichard, Vincent Bonneterre, Nicole Pinel, Frédéric Pelascini, Philippe Dugourd, Jean-Luc Coll, Michel D'Incan, Julie Charles, Vincent Motto-Ros, Lucie Sancey
Pathologists typically encounter many disparate exogenous materials in clinical specimens during their routine histopathological examinations, especially within the skin, lymph nodes, and lungs. These foreign substances may be free extracellular deposits or induce several clinical abnormalities or histopathological patterns. However, pathologists almost never investigate or report the chemical nature of exogenous metals in clinical specimens due to a lack of convenient and available technologies. In this paper, a novel strategy based on laser-induced breakdown spectroscopy (LIBS) technology is evaluated for in situ multi-elemental tissue imaging...
March 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29136262/treatment-of-cutaneous-pseudolymphoma-a-systematic-review
#15
Diana Miguel, Melanie Peckruhn, Peter Elsner
Cutaneous pseudolymphoma (CPL) is a reactive polyclonal T- or B-cell lymphoproliferative process. CPL may appear as localized or disseminated skin lesions. While most cases of CPL are idiopathic, they may also occur as a response to, for example, contact dermatitis, arthropod reactions, and bacterial infections. CPL can be classified based on its clinical features, but all variants have similar histopathological patterns of either predominantly B-cell infiltrates, T-cell infiltrates, or mixed T/B-cell infiltrates...
March 13, 2018: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29033422/hepatic-pseudolymphoma-with-an-occult-hepatitis-b-virus-infection
#16
Hideo Kunimoto, Daisuke Morihara, Shin-Ichiro Nakane, Takashi Tanaka, Keiji Yokoyama, Akira Anan, Yasuaki Takeyama, Makoto Irie, Satoshi Shakado, Tomoaki Noritomi, Morishige Takeshita, Kengo Yoshimitsu, Shotaro Sakisaka
A 49-year-old woman who was asymptomatic was found to have a small liver tumor on abdominal ultrasonography (US) at her annual health checkup. US revealed a hypoechoic, solid, mass measuring 17-mm in size in segment 6. The tumor markers associated with liver malignancy were negative. An infectious disease screen was negative for hepatitis B surface antigen, but positive for antibody to hepatitis B core antigen. Imaging studies using computed tomography (CT), magnetic resonance imaging (MRI), and CT angiography suggested a malignant liver tumor, such as hepatocellular carcinoma...
January 15, 2018: Internal Medicine
https://www.readbyqxmd.com/read/28984697/mixed-lichenoid-and-follicular-t-and-b-cell-lymphoid-reaction-to-red-tattoos-with-monoclonal-t-cells
#17
Hiba Zaaroura, Reuven Bergman
Pseudolymphomatous reactions have been described to occur in tattoos. Most cases have exhibited T-cell predominance and polyclonal T-cell receptor gene rearrangements. One case with monoclonal IgH gene rearrangements progressed into B-cell lymphoma. Lichenoid infiltrates are commonly described but lymphoid follicles much less frequently. We report a case with mixed lichenoid and follicular T- and B-cell reaction to red tattoos. The histopathology and the immunohistochemical studies were constant with a mixed T- and B-cell pseudolymphoma, the IgH gene rearrangement study was polyclonal, but the T-cell receptor gene rearrangement study was monoclonal...
September 28, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28881336/perianal-pseudolymphoma-a-case-report-and-review-of-the-literature
#18
Tahleesa Cuda, Pieter Prinsloo
INTRODUCTION: Perianal pseudolymphoma is a rare lymphoproliferative disorder that can mimic cutaneous lymphoma. The condition can present acutely with concerns of perianal sepsis. The purpose of this case review is to review the current literature on perianal pseudolymphoma and emphasise to the surgical community its presentation, suggested aetiology and management. CASE PRESENTATION: In this case report, we detail the case of a 28-year-old female who presented with perianal pseudolymphoma...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28865097/suspected-phenobarbital-induced-pseudolymphoma-in-a-dog
#19
R Lampe, J Manens, N Sharp
Pseudolymphoma is a drug reaction to anti-epileptics that is well recognized in humans; it has been reported in one cat but not dogs. In this report, lymphoma-like clinical signs are suspected to be secondary to phenobarbital administration in a dog. A 2.5-year-old male, neutered Shepherd mix presented for a 3-day history of progressive ataxia, dazed mentation, pyrexia, and lethargy. While hospitalized, the dog developed generalized lymphadenopathy and sustained pyrexia. The dog was receiving levetiracetam and phenobarbital for epilepsy, and serum concentrations of both were within standard therapeutic ranges...
November 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28832882/cutaneous-pseudolymphoma-arising-as-wolf-s-post-herpetic-isotopic-response
#20
Chase W Kwon, Diana M Stephens, Elaine S Gilmore, Francisco A Tausk, Glynis A Scott
No abstract text is available yet for this article.
November 1, 2017: JAMA Dermatology
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