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Pseudolymphoma

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https://www.readbyqxmd.com/read/29148536/characterization-of-foreign-materials-in-paraffin-embedded-pathological-specimens-using-in-situ-multi-elemental-imaging-with-laser-spectroscopy
#1
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...
November 17, 2017: 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
#2
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...
November 14, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29033422/a-case-of-hepatic-pseudolymphoma-with-an-occult-hepatitis-b-virus-infection
#3
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...
October 16, 2017: 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
#4
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
#5
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
#6
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...
September 2, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28832882/cutaneous-pseudolymphoma-arising-as-wolf-s-post-herpetic-isotopic-response
#7
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
https://www.readbyqxmd.com/read/28832176/-reactive-lymphoid-hyperplasia-of-the-liver
#8
B Dobiašová, M Zvaríková, K Petráková
Here, we present the case of a 50-year-old woman diagnosed with stage I hormone-dependent breast cancer. The patient underwent partial mastectomy followed by adjuvant radiotherapy and hormone treatment with tamoxifen. Three years later, she presented with a solitary liver lesion on MRI, which was highly suspicious of malignancy. However, several fine needle biopsies were performed, and histopathological examination revealed no signs of neoplasia. As a result of these alarming discrepancies, the multidisciplinary board recommended a diag-nostic laparotomy, which yielded a finding consistent with reactive lymphoid hyperplasia, a pseudolymphoma of the liver, on a background of incipient steatohepatitis...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28702966/possible-role-of-helicobacter-pylori-in-diseases-of-dermatological-interest
#9
C Guarneri, J Lotti, M Fioranelli, M G Roccia, T Lotti, F Guarneri
Helicobacter pylori is a gram-negative, flagellate, microaerophilic bacterium identified for the first time about 30 years ago, as a pathogenic factor of gastritis and peptic ulcer. Soon after, it was linked to several gastrointestinal and extra-gastrointestinal diseases (hematological, cardiovascular, neurological, pulmonary and ocular diseases, obesity, diabetes mellitus, growth retardation and extragastric MALT lymphoma). Association and possible cause-effect correlation with H. pylori infection were suggested in diseases of dermatological interest such as chronic urticaria, rosacea, Henoch-Schoenleins purpura, idiopathic thrombocytopenic purpura, cutaneous and oral lichen planus, atopic dermatitis, recurrent aphthous stomatitis, systemic sclerosis, psoriasis, Sjögrens syndrome, Behçet's disease, pruritus, alopecia areata, primary cutaneous marginal zone B-cell lymphomas, vitiligo, chronic prurigo, multiformis, prurigo nodularis, leukocytoclastic vasculitis, prurigo pigmentosa, eczema nummulare, primary cutaneous MALT-type lymphoma, sublamina densa-type linear IgA bullous dermatosis, Sweet's syndrome, cutaneous T-cell pseudolymphoma and pemphigus vulgaris...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28675468/acral-angiokeratoma-like-pseudolymphoma-in-a-middle-aged-woman
#10
Shamir Geller, Alina Markova, Melissa Pulitzer, Patricia L Myskowski
Acral angiokeratoma-like pseudolymphoma is a rare type of pseudolymphoma presenting as dark-red papules on the hand or foot. We describe a 59-year-old woman who presented with an unusual unilateral, clustered aggregate of scaly violaceous papules on the toe with an indolent course. Skin biopsy showed a prominent vascular proliferation associated with a dermal infiltrate of monoclonally rearranged T-follicular helper phenotype T-cells, in keeping with CD4+ small/medium T-cell lymphoproliferative disorder (SMPTC-LPD)...
October 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28660738/pseudolymphoma-in-a-cat-on-phenobarbital-treatment
#11
J Lieser, C S Schwedes
A two-year-old female spayed domestic shorthair cat was presented with apathy, inappetence and generalised lymphadenomegaly. Anamnestic data included a generalised seizure disorder and phenobarbital treatment started one month before presentation. Routine blood analysis revealed only mild abnormalities and FeLV and FIV tests were negative. Both popliteal lymph nodes were aspirated and cytology was consistent with reactive lymph node hyperplasia. PCR for antigen receptor rearrangement testing diagnosed a polyclonal cell population...
June 29, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28560304/defining-the-mimics-and-clinico-histological-diagnosis-criteria-for-mycosis-fungoides-to-minimize-misdiagnosis
#12
A Kelati, S Gallouj, L Tahiri, T Harmouche, F Z Mernissi
BACKGROUND: Mycosis fungoides (MF) is a significant diagnostic challenge; it has various differential diagnosis especially at an early stage. Our aim was to describe mimics of MF clinically and histologically, and to define significant diagnostic criteria of the disease. METHODS: This was a retro-prospective cohort of 370 patients in whom the diagnosis of MF was suspected clinically. RESULTS: MF was histologically confirmed in 15.4% of cases and rejected in 84...
June 2017: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28526427/atypical-presentations-of-cutaneous-leishmaniasis-a-systematic-review
#13
REVIEW
Camilla Barros Meireles, Laís Chaves Maia, Gustavo Coelho Soares, Ilara Parente Pinheiro Teodoro, Maria do Socorro Vieira Gadelha, Cláudio Gleidiston Lima da Silva, Marcos Antonio Pereira de Lima
Cutaneous Leishmaniasis (CL) is endemic in 88 countries, showing relevant prevalences. The aim of this study was to perform a systematic review on atypical lesions of CL around the world, addressing clinico-epidemiological, immunological and therapeutic aspects. A search of the literature was conducted via electronic databases Scopus and PubMed for articles published between 2010 and 2015. The search terms browsed were "cutaneous leishmaniasis", "atypical" and "unusual". Based on the eligibility criteria, 34 out of 122 articles were included in the final sample...
August 2017: Acta Tropica
https://www.readbyqxmd.com/read/28525331/an-immunohistochemical-analysis-of-lymphocytic-infiltrations-in-canine-skin-cancers
#14
J A Madej, J P Madej, S Dzimira, M Nowak
Lymphocytic infiltrations located in the extracellular matrix often accompany canine skin cancer. They can be characterised as an inflammatory infiltration and/or a second tumour - lymphoma. The aim of this study was an immunohistochemical analysis of a lymphocytic infiltration which accompanies spontaneous skin cancer. Twenty basal cell carcinoma, 20 non-keratinizing squamous cell carcinoma, 20 keratinizing squamous cell carcinoma and 8 sebaceous gland carcinoma samples which were accompanied by a lymphocytic infiltration and/or secondary lymphatic follicles were verified histopathologically...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28348962/lamotrigine-related-pseudolymphoma-presenting-as-cervical-lymphadenopathy
#15
Eoin Mulroy, Elizabeth Walker
Immune-mediated drug reactions are a potentially life-threatening complication of antiseizure medications. Drug hypersensitivity syndrome (DHS) is the best recognised of these, presenting with fever, eosinophilia, rash and internal organ involvement. Isolated lymphadenopathy is a less recognized immune-mediated reaction to antiseizure drugs such as lamotrigine. We describe the case of a 24-year-old woman who developed lamotrigine-related bilateral cervical lymphadenopathy (pseudolymphoma) fifteen months following therapy initiation...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28288455/diagnostic-tools-for-doctors-evaluation-of-tattoo-complications
#16
Jørgen Serup
Diagnosis of tattoo complications is a multi-facetted field since many clinical entities and disease mechanisms are represented. Infections, allergies, and pigment foreign body reactions with granuloma are the major groups. The clinician needs a structured approach to diagnosis and an armamentarium of standard tests. Diagnosis primarily builds on patient history, objective clinical examination, and punch biopsy, supplemented with microbiology testing, ultrasound scanning, and clinical photography. Evaluation of allergic tattoo reactions and allergy to pigments by patch testing is not applicable and has a falsely negative outcome except for the diagnosis of allergy to metals and preservatives...
2017: Current Problems in Dermatology
https://www.readbyqxmd.com/read/28114617/injection-site-cutaneous-pseudolymphoma-induced-by-a-gm-csf-producing-tumor-cell-vaccine
#17
Karl Staser, Sabra Abner, Milan Anadkat, Amy Musiek, András Schaffer
No abstract text is available yet for this article.
April 1, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28053910/lymphocytoma-cutis-diagnostic-enigma-for-the-maxillofacial-surgeon
#18
Tejraj P Kale, Arjun Gurmeet Singh, Pushpak Shah
Cutaneous lymphoid hyperplasia (CLH) is a cutaneous pseudolymphoma with a worldwide distribution, equally affecting all races and ethnic groups. Due to its vast array of characteristics, it is most often missed in the differential diagnosis of firm to soft lumps on the head and neck. A systematic approach to the workup and diagnosis along with treatment of such lesions is discussed in this article. A 20-year-old Asian Indian female presented to our Oral and Maxillofacial unit with a lump on the left side of her forehead for 1 month...
December 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/27766674/cutaneous-metastasis-of-inflammatory-breast-carcinoma-mimicking-an-erythema-annulare-centrifugum-a-sign-of-locally-recurrent-cancer
#19
V Sabater, F Ferrando, A Morera, L Palomar
Erythema annulare centrifugum (EAC) is a clinical reaction pattern that includes lupus erythematosus, spongiotic dermatitis (particularly pityriasis rosea), pseudolymphoma and cutaneous B-cell lymphoma. However, it can be the result of cutaneous metastasis by an internal carcinoma. We present the case of a 38-year-old woman with bilateral inflammatory breast cancer following multimodal therapy. After chemotherapy, the patient developed EAC on her back, clinically suspect of subacute cutaneous lupus erythematosus...
December 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27728661/pseudolymphoma-of-lung-in-a-case-of-systemic-lupus-erythematosus
#20
T Nishitha, Pankaj Singhai
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
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