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1.
EJHaem ; 3(4): 1385-1387, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36467823

RESUMO

The TEMPI syndrome is a very rare paraneoplastic syndrome associated with plasma cell dyscrasia and monoclonal gammopathy. First described in 2011, the pathophysiology of TEMPI syndrome is still unknown. Essential for diagnosis is to recognize the five clinical findings: telangiectasias, erythrocytosis and elevated serum erythropoietin, monoclonal gammopathy, perinephric fluid collection, and intrapulmonary shunting. Here we report a case of a woman with the coexistence of TEMPI and leukocytoclastic vasculitis, shedding light on a possible common inflammatory pathway involved in the pathogenesis of the syndrome.

2.
Dermatol Reports ; 13(3): 8993, 2021 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-34880968

RESUMO

Cutaneous forms of tuberculosis are rare, comprising about 1-1.5% of all cases, and show a wide range of clinical manifestations. Here we present a case of a patient with left cervical ulcerated lymphadenopathy associated with a violaceous plaque in the area of the manubrium of sternum. We performed a biopsy of the plaque for histopathology, a polymerase chain reaction (PCR) to test for mycobacteria and a smear of the ulcerated lymph node. Histopathology results showed a dermal infiltrate consisting of epithelioid granulomas without necrosis, PCR was negative, and the culture was positive for M. tuberculosis. We made the diagnosis of scrofuloderma associated with lupus vulgaris. The patient was treated with an anti-tuberculous therapy with clinical regression of the lesions. Our case emphasizes the importance of recognizing that tuberculosis can occur as a primary cutaneous pathology, with a challenging diagnosis that requires the correlation of clinical findings with diagnostic testing. Transient acantholytic dermatosis (TAD) is a relatively common entity that has been also noted to occur in patients with cancer. Herein, we describe a case of transient acantholytic dermatosis occurring in a patient with a history of prostate cancer status post radiation, now being treated with combination therapy with pembrolizumab and carboplatin-pemetrexed for advanced lung adenocarcinoma. Our case emphasizes the importance of being cognizant of TAD and its associations, particularly in cancer patients.

3.
Pathologe ; 42(5): 530-539, 2021 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-34240239

RESUMO

The comprehensive investigation of the excellently preserved mummy of Ötzi, the Iceman, and his equipment over the last 30 years has provided a wealth of information about the life and disease of this late Neolithic individual. This research has indicated that his origin was from a local southern Alpine population, that he grew up in the valleys of the Southern Alps, and that he had considerable local mobility. He had well-balanced nutrition with a mixed vegetable and animal diet. He was very mobile in the alpine terrain and of athletic constitution. The Iceman suffered from mild to moderate degenerative joint disease primarily of the right hip joint, slight spondylosis of the cervical and lumbar spine, a minor focal (premature) arteriosclerosis, lung anthracosis and possibly silicosis, previous pleuritic inflammation (possibly of post-specific origin), intestinal infections of the stomach by Helicobacter pylori and Trichuris trichiura worm infestation in the intestines, a mild osteomalacia of cancellous bone, and diverse pathologies of his teeth with dental caries and periodontitis, as well as hair anomalies. The presence of borreliosis is still under debate. As potential remedies, the Iceman carried some anthelmintic substances with him: a birch polypore and an anthelmintic fern. The numerous tattoos may also have had therapeutic effects. Finally, the last days of Ötzi could be reconstructed quite precisely: his gastrointestinal content indicates that the Iceman moved from Alpine heights to a lower location and then again up to the glacier region where he died. During this journey he encountered two attacks: the first, several days before his death, lead to a stabbing wound in his right hand; the second was an arrow hit that wounded the Iceman lethally at his left axilla by laceration of the subclavian artery.


Assuntos
Cárie Dentária , Múmias , Animais , Camada de Gelo , Masculino , Estômago
4.
Ann Hematol ; 99(5): 1031-1040, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32140891

RESUMO

High-dose chemotherapy followed by autologous stem cell transplantation (HD-ASCT) as well as the introduction of novel agents (NA) significantly improved survival for patients with multiple myeloma (MM). A total of 150 unselected newly diagnosed MM patients treated at our institution from 1998 to 2017 were retrospectively analyzed. Median age at diagnosis was 69 years (range 33-93 years) with a median follow-up of 48.6 months. The median overall survival (OS) for the entire cohort was 60.7 months (range 0.3-280.1). Patients who received frontline HD-ASCT (p < 0.01) or NA-based first-line treatment (p = 0.043) had a significantly better OS. According to the revised Myeloma Comorbidity Index (R-MCI), patients were defined as fit (36.5%), intermediate-fit (44.5%), or frail (19%) with a significant difference in OS between these categories (p < 0.01). Multivariate analysis revealed R-MCI as an independent prognostic factor for OS (p < 0.01). Presence of subclinical amyloid deposits (A+) was detected in 18 out of 66 patients (27.3%) and significantly correlated with a serum free light chain (sFLC) ratio ≥ 100 (p = 0.01) and bone marrow plasma cell infiltration > 60% (p = 0.04). Furthermore, patients with A+ had significantly worse OS compared with their counterparts (p = 0.048). Our results corroborate the efficacy of both early HD-ASCT and the use of new agents as initial therapy of MM patients in "real-world" daily clinical practice. The R-MCI is an easily applicable tool to stratify MM patients and may support treatment decisions. The prognostic value of subclinical amyloid deposition should be validated within prospective studies.


Assuntos
Antineoplásicos/administração & dosagem , Mieloma Múltiplo/mortalidade , Mieloma Múltiplo/terapia , Transplante de Células-Tronco , Adulto , Idoso , Idoso de 80 Anos ou mais , Autoenxertos , Intervalo Livre de Doença , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida
5.
Transl Res ; 184: 21-34, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28259616

RESUMO

Essential thrombocythemia (ET) patients are at risk of developing thrombotic events. Qualitative platelet (PLT) abnormalities and activation of endothelial cells (ECs) and PLTs are thought to be involved. Microparticles (MPs) can originate from PLTs (PMPs), ECs (EMPs), or red cells (RMPs). Previous studies have indicated that MPs contribute to ET pathophysiology. Endothelial modulators (eg, nitric oxide [NO], adrenomedullin [ADM], and endothelin-1 [ET-1]) are also involved in the pathophysiology of this condition. We hypothesized that treatments for reducing PLT count might also indirectly affect MP generation and endothelial activity by altering endothelial modulator production. The rationale of this study was that hydroxyurea (HU), a cytostatic drug largely used in ET, induces the production of a potent vasoactive agent NO in ECs. An observational retrospective study was designed to investigate the relationship between MPs, NO, ADM, and ET-1 in ET patients on treatment with HU, anagrelide (ANA), aspirin (ASA), and a group of patients before treatment. A total of 63 patients with ET diagnosis: 18 on HU + ASA, 15 on ANA + ASA, 19 on ASA only, and 11 untreated patients, and 18 healthy controls were included in this study. Blood samples were analyzed for MP (absolute total values) and functional markers (percentage values) by flow cytometry. PLT-derived MPs were studied using CD61, CD62P, CD36, and CD63, whereas endothelial-derived MPs were studied using CD105, CD62E, and CD144. Endothelial modulator markers (NO, ADM, and ET-1) were measured by ELISA. Total MP count was higher in the group treated with ANA + ASA (P < 0.01). MP markers modified in ET patients returned to levels of healthy controls following treatment, in particular, in patients on ANA treatment. NO and ADM values were higher in the HU group (P < 0.001). HU and ANA treatment also affected MP production in a cell origin-specific manner. HU and ANA, although acting via different pathways, have similar final effects. For instance, HU causes vasodilatation by increasing NO and ADM levels, whereas ANA impairs vasoconstriction by reducing ET-1. In conclusion, therapy with HU cytostatic drugs and ANA can reduce PLT count in ET, and also affect endothelial modulatory agents, with HU sustaining vasodilation and prothrombotic MP concentration, whereas ANA decreases vasoconstriction.


Assuntos
Endotélio Vascular/patologia , Trombocitemia Essencial/tratamento farmacológico , Trombocitemia Essencial/fisiopatologia , Adrenomedulina/sangue , Adrenomedulina/metabolismo , Idoso , Aspirina/uso terapêutico , Plaquetas/efeitos dos fármacos , Plaquetas/patologia , Estudos de Casos e Controles , Micropartículas Derivadas de Células/patologia , Endotelina-1/sangue , Endotélio Vascular/efeitos dos fármacos , Endotélio Vascular/metabolismo , Feminino , Humanos , Hidroxiureia/uso terapêutico , Masculino , Pessoa de Meia-Idade , Óxido Nítrico/sangue , Quinazolinas/uso terapêutico , Estudos Retrospectivos , Trombocitemia Essencial/sangue
6.
Insights Imaging ; 8(2): 243-253, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28127678

RESUMO

Gallbladder adenomyomatosis (GA) is a benign alteration of the gallbladder wall that can be found in up to 9% of patients. GA is characterized by a gallbladder wall thickening containing small bile-filled cystic spaces (i.e., the Rokitansky-Aschoff sinuses, RAS). The bile contained in RAS may undergo a progressive concentration process leading to crystal precipitation and calcification development. A correct characterization of GA is fundamental in order to avoid unnecessary cholecystectomies. Ultrasound (US) is the imaging modality of choice for diagnosing GA; the use of high-frequency probes and a precise focal depth adjustment enable correct identification and characterization of GA in the majority of cases. Contrast-enhanced ultrasound (CEUS) can be performed if RAS cannot be clearly identified at baseline US: RAS appear avascular at CEUS, independently from their content. Magnetic resonance imaging (MRI) should be reserved for cases that are unclear on US and CEUS. At MRI, RAS can be identified with extremely high sensitivity, but their signal intensity varies widely according to their content. Positron emission tomography (PET) may be helpful for excluding malignancy in selected cases. Computed tomography (CT) and cholangiography are not routinely indicated in the suspicion of GA. TEACHING POINTS: 1. Gallbladder adenomyomatosis is a common benign lesion (1-9% of the patients). 2. Identification of Rokitansky-Aschoff sinuses is crucial for diagnosing gallbladder adenomyomatosis. 3. Sonography is the imaging modality of choice for diagnosing gallbladder adenomyomatosis. 4. Intravenous contrast material administration increases ultrasound accuracy in diagnosing gallbladder adenomyomatosis. 5. Magnetic resonance is a problem-solving technique for unclear cases.

7.
J Med Case Rep ; 10(1): 254, 2016 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-27634631

RESUMO

BACKGROUND: Silicone implants have been successfully used for breast augmentation and reconstruction in millions of women worldwide. The reaction to the silicone implant is highly variable; it can lead to local inflammatory symptoms, and sometimes to systemic symptoms and disease. Over 80 cases of anaplastic lymphoma kinase-negative anaplastic large cell lymphoma have been reported in patients with silicone breast implants and have been accepted as a new clinical entity. To the best of our knowledge, an intravascular large B-cell lymphoma associated with a silicone breast implant has not been reported previously. CASE PRESENTATION: A 48-year-old Caucasian woman who presented with high fever was found to have splenomegaly on physical examination. A laboratory diagnosis revealed pancytopenia, hypertriglyceridemia, and hyperferritinemia. She developed signs of altered sensorium, hemiparesis, aphasia, and cauda equina syndrome. On further evaluation, she fulfilled the necessary five out of eight criteria for diagnosis of macrophage activation syndrome/hemophagocytic lymphohistiocytosis. Dexamethasone administration was followed by prompt improvement; however, 3 days later she again manifested high fever, which persisted despite administration of immunoglobulin and cyclosporine A. Her silicone breast implant was considered a possible contributor to her macrophage activation syndrome and was therefore removed. A histological examination of the capsule tissue showed an extensive lymphohistiocytic/giant cell foreign body reaction suggestive of autoimmune/inflammatory syndrome induced by adjuvants. However, the histological examination unexpectedly also revealed an intravascular large B-cell lymphoma. CONCLUSIONS: The genetic background of our patient with silicone breast implants might have predisposed her to three rare and difficult to diagnose syndromes/diseases: macrophage activation syndrome/hemophagocytic lymphohistiocytosis, autoimmune/inflammatory syndrome induced by adjuvants, and intravascular large B-cell lymphoma. The simultaneous manifestation of all three syndromes suggests causal interrelationships. Human leukocyte antigen testing in all women who undergo silicon breast implantation could in the future enable us to better evaluate the risk of potential side effects.


Assuntos
Implante Mamário/efeitos adversos , Implantes de Mama/efeitos adversos , Cadeias beta de HLA-DQ/imunologia , Cadeias HLA-DRB1/imunologia , Linfo-Histiocitose Hemofagocítica/diagnóstico , Linfoma Difuso de Grandes Células B/diagnóstico , Síndrome de Ativação Macrofágica/etiologia , Géis de Silicone/efeitos adversos , Anticorpos Monoclonais Murinos , Protocolos de Quimioterapia Combinada Antineoplásica , Confusão , Ciclofosfamida , Remoção de Dispositivo/métodos , Diagnóstico Diferencial , Doxorrubicina , Feminino , Febre , Reação a Corpo Estranho/etiologia , Reação a Corpo Estranho/genética , Reação a Corpo Estranho/imunologia , Cadeias beta de HLA-DQ/genética , Cadeias HLA-DRB1/genética , Humanos , Linfo-Histiocitose Hemofagocítica/genética , Linfo-Histiocitose Hemofagocítica/imunologia , Linfo-Histiocitose Hemofagocítica/cirurgia , Linfoma Difuso de Grandes Células B/genética , Linfoma Difuso de Grandes Células B/patologia , Linfoma Difuso de Grandes Células B/terapia , Síndrome de Ativação Macrofágica/genética , Síndrome de Ativação Macrofágica/imunologia , Pessoa de Meia-Idade , Pancitopenia , Prednisona , Reoperação , Rituximab , Resultado do Tratamento , Vincristina
8.
Am J Clin Pathol ; 142(2): 222-6, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25015864

RESUMO

OBJECTIVES: Allogeneic bone marrow transplantation (BMT) is a procedure mostly used for high-risk hematologic malignances. In women, follow-up protocols after BMT include gynecologic checkups with Papanicolaou (Pap) smears. METHODS: We evaluated 117 Pap smears in 54 women who underwent allogeneic BMT and correlated the smear morphology with the BMT-related medical treatment. RESULTS: Abnormal Pap smears after BMT were found in 13 (24.1%) women. Four (7.4%) women had at least one smear with atypical squamous cells of unknown significance, six (11.1%) had a low-grade squamous intraepithelial lesion, and three (5.6%) had atypical squamous cells/high-grade lesion cannot be excluded (ASC-H). The three patients with ASC-H showed high-grade atypia mimicking cancer but had a negative follow-up. Nine women, including the three with ASC-H, had undergone a conditioning therapy for BMT that included busulfan. No association between other drugs and therapy-related atypia was found. CONCLUSIONS: Pap smears after BMT show a high incidence of dysplastic lesions. Moreover, conditioning including busulfan is often associated with therapy-related cytologic atypia, which may lead to unnecessary colposcopies and biopsies. Knowledge of the patient's history and a careful evaluation of the smears are mandatory in these cases.


Assuntos
Transplante de Medula Óssea , Displasia do Colo do Útero/patologia , Neoplasias do Colo do Útero/patologia , Adulto , Idoso , Transplante de Medula Óssea/métodos , Feminino , Humanos , Pessoa de Meia-Idade , Gradação de Tumores , Teste de Papanicolaou/métodos , Gravidez , Transplante Homólogo/métodos , Resultado do Tratamento , Displasia do Colo do Útero/terapia , Neoplasias do Colo do Útero/terapia , Esfregaço Vaginal/métodos , Adulto Jovem
10.
J Drugs Dermatol ; 6(5): 507-13, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17679185

RESUMO

Forty-one patients with 47 basal cell carcinomas (BCCs; 15 superficial, 26 nodular, and 6 sclerodermiform) were treated with 5% imiquimod cream once daily 5 times a week for 6 weeks in an open-label clinical trial. The overall response rate was 95.7%. Local side effects occurred in 68% of the patients as mild to moderate reactions with a clear association to the histological BCC subtype. Follow-up examinations for up to 17 months (median 10 months) showed scars in 14.9% of the patients and a recurrence rate of 6.6%. Overall, imiquimod represents a safe and effective treatment option for a selected cohort of BCC patients. Notably, by the second week of treatment 72.7% of BCC biopsies were histologically tumor-free, which correlated with a substantial decrease of the inflammatory infiltrate by up to 58% between weeks 3 to 6. This early imiquimod response might have important implications for the final definition of potentially shorter imiquimod treatment periods.


Assuntos
Aminoquinolinas/uso terapêutico , Antineoplásicos/uso terapêutico , Carcinoma Basocelular/tratamento farmacológico , Recidiva Local de Neoplasia , Neoplasias Cutâneas/tratamento farmacológico , Administração Tópica , Adulto , Idoso , Idoso de 80 Anos ou mais , Aminoquinolinas/efeitos adversos , Antineoplásicos/efeitos adversos , Carcinoma Basocelular/classificação , Carcinoma Basocelular/patologia , Feminino , Seguimentos , Humanos , Imiquimode , Masculino , Pessoa de Meia-Idade , Neoplasias Cutâneas/classificação , Neoplasias Cutâneas/patologia , Resultado do Tratamento
11.
J Exp Med ; 204(6): 1441-51, 2007 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-17535975

RESUMO

Imiquimod (IMQ), a synthetic agonist to Toll-like receptor (TLR) 7, is being successfully used for the treatment of certain skin neoplasms, but the exact mechanisms by which this compound induces tumor regression are not yet understood. While treating basal cell carcinoma (BCC) patients with topical IMQ, we detected, by immunohistochemistry, sizable numbers of both myeloid dendritic cells (mDCs) and plasmacytoid DCs (pDCs) within the inflammatory infiltrate. Surprisingly, peritumoral mDCs stained positive for perforin and granzyme B, whereas infiltrating pDCs expressed tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). The biological relevance of this observation can be deduced from our further findings that peripheral blood-derived CD11c(+) mDCs acquired antiperforin and anti-granzyme B reactivity upon TLR7/8 stimulation and could use these molecules to effectively lyse major histocompatibility complex (MHC) class I(lo) cancer cell lines. The same activation protocol led pDCs to kill MHC class I-bearing Jurkat cells in a TRAIL-dependent fashion. While suggesting that mDCs and pDCs are directly involved in the IMQ-induced destruction of BCC lesions, our data also add a new facet to the functional spectrum of DCs, ascribing to them a major role not only in the initiation but also in the effector phase of the immune response.


Assuntos
Aminoquinolinas/uso terapêutico , Antineoplásicos/uso terapêutico , Carcinoma Basocelular/imunologia , Células Dendríticas/imunologia , Receptor 7 Toll-Like/metabolismo , Receptor 8 Toll-Like/metabolismo , Idoso , Idoso de 80 Anos ou mais , Aminoquinolinas/metabolismo , Anticorpos Monoclonais , Antineoplásicos/metabolismo , Carcinoma Basocelular/tratamento farmacológico , Carcinoma Basocelular/patologia , Linhagem Celular Tumoral , Testes Imunológicos de Citotoxicidade , Células Dendríticas/metabolismo , Feminino , Citometria de Fluxo , Granzimas/imunologia , Humanos , Imiquimode , Imuno-Histoquímica , Leucócitos/química , Masculino , Perforina/imunologia , Ligante Indutor de Apoptose Relacionado a TNF/imunologia , Receptor 7 Toll-Like/agonistas
12.
Clin Transplant ; 20(2): 261-4, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16640537

RESUMO

The fulminant form of post-transplant lymphoproliferative disorder (PTLD) is very uncommon and occurs in approximately 1% of PTLD patients. Approximately 85% of these lesions are of B-cell origin, and most of them are associated with Epstein-Barr virus infection. Fulminant PTLD is frequently associated with a systemic inflammatory response syndrome, and may be difficult to differentiate from septicemia. We describe the case of a 59-yr-old man who suffered from prolonged septicemia in the immediate post-transplant period, and presented again four months after cardiac transplantation with fever, painful liver edge and gastrointestinal bleeding. The diagnosis of fulminant PTLD with advanced multiorgan infiltration by a diffuse large-cell lymphoma of B-cell phenotype was made. During treatment with rituximab, the patient died from Enterococcus faecium septicemia. The sequence of septicemia, PTLD and, finally again, septicemia is an unusual challenge and urges for an aggressive diagnostic approach, where markers like procalcitonin may aid in the discrimination of fulminant PTLD from septicemia.


Assuntos
Infecções por Bactérias Gram-Positivas/diagnóstico , Transplante de Coração/efeitos adversos , Transtornos Linfoproliferativos/etiologia , Sepse/etiologia , Autopsia , Enterococcus faecium , Evolução Fatal , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico , Falha de Tratamento
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