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Dos Santos ES, Rocha AFL, Leite AA, Gallagher KPD, Penafort PVM, Cintra ML, Vargas PA. A crateriform lesion on the upper lip. Oral Surg Oral Med Oral Pathol Oral Radiol 2024:S2212-4403(24)00084-1. [PMID: 38519297 DOI: 10.1016/j.oooo.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/09/2024] [Accepted: 02/26/2024] [Indexed: 03/24/2024]
Affiliation(s)
- Erison Santana Dos Santos
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Audrey Foster Lefort Rocha
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental School, Universidade Estadual Paulista (UNESP), São Paulo, Brazil
| | - Amanda Almeida Leite
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | | | | | - Maria Letícia Cintra
- Pathology Department, Dermatopathology Division, School of Medical Sciences, UNICAMP, Sao Paulo, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil.
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2
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Bertanha L, de Mello CDBF, Damas II, Stelini RF, Di Chiacchio N, Cintra ML. A new technique of paraffin-embedding of formalin-fixed nail sample, obtained by tangential excision - potato as guide mold. An Bras Dermatol 2024; 99:139-141. [PMID: 37657960 DOI: 10.1016/j.abd.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/01/2023] [Indexed: 09/03/2023] Open
Affiliation(s)
- Laura Bertanha
- Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil; Hospital do Servidor Público Municipal, São Paulo, SP, Brazil.
| | | | - Ingrid Iara Damas
- Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | | | | | - Maria Letícia Cintra
- Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
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Drummond MR, Santos LSD, Souza LB, Mitsuushi GN, Cintra ML, França AFEDC, Souza EMD, Velho PENF. Detection of Bartonella henselae DNA in the blood of patients with livedoid vasculopathy. An Bras Dermatol 2023:S0365-0596(23)00066-1. [PMID: 36973097 DOI: 10.1016/j.abd.2022.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/18/2022] [Accepted: 07/21/2022] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Livedoid vasculopathy (LV) manifests as ulcers and atrophic white scars on the lower extremities. The main known etiopathogenesis is hypercoagulability with thrombus formation, followed by inflammation. Thrombophilia, collagen and myeloproliferative diseases may induce LV, but the idiopathic (primary) form predominates. Bartonella sp. may cause intra-endothelial infection and skin manifestations caused by these bacteria may be diverse, including leukocytoclastic vasculitis and ulcers. OBJECTIVE The aim of this study was to investigate the presence of bacteremia by Bartonella spp. in patients with difficult-to-control chronic ulcers diagnosed as primary LV. METHODS Questionnaires and molecular tests (conventional PCR, nested PCR and real-time PCR) were applied and liquid and solid cultures were performed in the blood samples and blood clot of 16 LV patients and 32 healthy volunteers. RESULTS Bartonella henselae DNA was detected in 25% of LV patients and in 12.5% of control subjects but failed to reach statistically significant differences (p = 0.413). STUDY LIMITATIONS Due to the rarity of primary LV, the number of patients studied was small and there was greater exposure of the control group to risk factors for Bartonella spp. INFECTION CONCLUSION Although there was no statistically significant difference between the groups, the DNA of B. henselae was detected in one of every four patients, which reinforces the need to investigate Bartonella spp. in patients with primary LV.
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Affiliation(s)
- Marina Rovani Drummond
- Department of Clinical Medicine, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil; Laboratory of Applied Research in Dermatology and Bartonella Infection, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil.
| | - Luciene Silva Dos Santos
- Department of Clinical Medicine, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil; Laboratory of Applied Research in Dermatology and Bartonella Infection, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil
| | - Lais Bomediano Souza
- Department of Medicine, Pontifícia Universidade Católica de Campinas, Campinas, São Paulo, SP, Brazil
| | - Gabriela Nero Mitsuushi
- Department of Clinical Medicine, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil
| | - Maria Letícia Cintra
- Department of Pathological Anatomy, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil
| | | | - Elemir Macedo de Souza
- Department of Clinical Medicine, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil
| | - Paulo Eduardo Neves Ferreira Velho
- Department of Clinical Medicine, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil; Laboratory of Applied Research in Dermatology and Bartonella Infection, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, São Paulo, SP, Brazil
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4
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Costa PRM, Vieira-Damiani G, Stelini RF, Ferreira LÁ, Cintra ML, Teixeira F. The texture of collagen and immunoexpression of PRAME in dysplastic nevus syndrome lesions: relationship with melanoma. An Bras Dermatol 2023; 98:128-130. [PMID: 36369201 PMCID: PMC9837641 DOI: 10.1016/j.abd.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- Paula Regina Martins Costa
- Department of Pathology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | | | - Rafael Fantelli Stelini
- Department of Pathology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Leonardo Ávila Ferreira
- Department of Dermatology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Maria Letícia Cintra
- Department of Pathology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil,Corresponding author.
| | - Fernanda Teixeira
- Department of Pathology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
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5
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Lima LPND, Amorim CV, Marinho RM, Cintra ML, Souza EMD. Congenital solitary reticulohistiocytosis (Hashimoto - Pritzker) - Case report. An Bras Dermatol 2022; 97:778-782. [PMID: 36153176 PMCID: PMC9582890 DOI: 10.1016/j.abd.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/21/2021] [Accepted: 01/03/2022] [Indexed: 11/16/2022] Open
Abstract
Congenital and self-healing Hashimoto-Pritzker reticulohistiocytosis is the benign variant of the Langerhans cell histiocytosis (LCH) group. It is characterized by multiple skin lesions (congenital or appearing during the first days after birth), without systemic manifestations and spontaneous resolution in days to months. The authors report the case of a boy with a single congenital leg skin lesion, a rare disease variant. Through histopathology, a dense skin infiltration of S100 protein-, CD1a-, CD207-immunomarked cells was found. KI67 index was high (62%). A complete spontaneous resolution occurred 07 days after the biopsy (25 days after birth). Monolesional disease, distal limb lesion, absence of lesions in the mucous membrane or seborrheic area, and less than 25 percent of LCs with Birbeck granules were said to be possible clues for a favorable prognosis in LCs histiocytosis. But, as a precautionary measure, the child will be followed up until at least 2 years of age.
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Affiliation(s)
| | - Carolina Viza Amorim
- Department of Pathology, Universidade Estadual de Campinas, Campinas, SP, Brazil.
| | | | - Maria Letícia Cintra
- Department of Pathology, Universidade Estadual de Campinas, Campinas, SP, Brazil.
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Silva ACF, Kazmarek LM, de Souza EM, Cintra ML, Teixeira F. Dermatological manifestations relating to nutritional deficiencies after bariatric surgery: case report and integrative literature review. SAO PAULO MED J 2022; 140:723-733. [PMID: 36043664 PMCID: PMC9514871 DOI: 10.1590/1516-3180.2021.0616.r1.17022022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 02/17/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The number of bariatric surgeries performed worldwide is growing. Among the main short, medium or long-term complications after surgery are nutritional deficiencies. Many of these, such as those of Zn, Cu and vitamins A, B1, B3, B6 and B12, are manifested by dermatological lesions before potentially fatal systemic disorders occur. OBJECTIVE To identify the main dermatological manifestations associated with nutritional deficiencies after bariatric surgery, and the associated variables. DESIGN AND SETTING Integrative literature review carried out at a public university in Brazil. METHODS This was a case report and a review of health research portals and databases of national and international biomedical journals, without publication date limitation. The descriptors used for searches followed the ideal methodology for each database/search portal: "bariatric surgery", "skin", "skin disease", "skin manifestation", "deficiency disease" and "malnutrition". RESULTS A total of 59 articles were selected, among which 23 were review articles or articles that addressed specific dermatological manifestations. The other 36 articles described 41 cases, which were organized into a table with the clinical variables. CONCLUSIONS Although nutritional deficiencies are expected as complications after bariatric surgery, few articles relating them to their dermatological manifestations were found. It is important to recognize skin changes caused by nutritional deficiencies in patients treated via bariatric surgery, as these may occur before systemic complications appear and are easier to diagnose when the patient does not have any systemic symptoms yet. However, there is generally a delay between the appearance of skin lesions and making the diagnosis of nutritional deficiency.
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Affiliation(s)
- Andressa Christine Ferreira Silva
- MD. Physician, Department of Pathology, Faculdade de Ciências Médicas da Universidade Estadual de Campinas (FCM-UNICAMP), Campinas (SP), Brazil
| | - Laura Moya Kazmarek
- MD. Physician, Department of Pathology, Faculdade de Ciências Médicas da Universidade Estadual de Campinas (FCM-UNICAMP), Campinas (SP), Brazil
| | - Elemir Macedo de Souza
- MD, PhD. Associate Professor with Tenure (Phased Retirement), Department of Dermatology, Faculdade de Ciências Médicas da Universidade Estadual de Campinas (FCM-UNICAMP), Campinas (SP), Brazil
| | - Maria Letícia Cintra
- MD, PhD. Professor and Head, Department of Pathology, Faculdade de Ciências Médicas da Universidade Estadual de Campinas (FCM-UNICAMP), Campinas (SP), Brazil
| | - Fernanda Teixeira
- MD, PhD. Consultant Professor, Department of Pathology, Faculdade de Ciências Médicas da Universidade Estadual de Campinas (FCM-UNICAMP), Campinas (SP), Brazil
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7
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Suzuki N, Cintra FF, Cintra ML, Maciel MG, Amstalden E, Teixeira F, Kubba F. "A case of vanishing bone disease complicated by chylothorax- diagnosis and treatment". JRSM Open 2022; 13:20542704221103912. [PMID: 35774987 PMCID: PMC9237928 DOI: 10.1177/20542704221103912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A 16-year old girl with Gorham-Stout disease is presented. She had progressive replacement of the bones of her left arm and shoulder girdle by fibroadipose tissue and numerous proliferated, non-neoplastic, lymphatic channels. The clinico-pathologic features of this condition are discussed, as are its possible complications and available therapeutic modalities.
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Affiliation(s)
- N Suzuki
- Department of Dermatology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - F F Cintra
- Department of Orthopedics, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - M L Cintra
- Department of Pathology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - M G Maciel
- Department of Dermatology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Emi Amstalden
- Department of Pathology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - F Teixeira
- Department of Pathology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - F Kubba
- Department of Pathology, London Northwest University Healthcare NHS Trust, UK
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Santos LSD, Drummond MR, França AFEDC, Pavan MHP, Stelini RF, Cintra ML, Souza EMD, Velho PENF. Chronic type 2 reaction possibly triggered by an asymptomatic Bartonella henselae infection in a leprosy patient. Rev Inst Med Trop Sao Paulo 2022; 64:e17. [PMID: 35195199 PMCID: PMC8862546 DOI: 10.1590/s1678-9946202264017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/26/2022] [Indexed: 01/03/2023] Open
Abstract
As leprosy and leprosy reactions are the most prevalent infectious cause of physical disability, it is important to commit efforts to better understand these chronic reactions. Infections, even when asymptomatic, can trigger leprosy reactions and Bartonella spp. in turn, can cause chronic infections. We presented a case of a 51-year-old man who was admitted presenting with chronic type 2 leprosy reactions. He had a lepromatous form of leprosy that was histologically diagnosed six months after the onset of signs and symptoms compatible with a chronic type 2 reaction. He reported a history of a previous hepatitis B diagnosis. During a 24-month multidrug therapy (MDT), chronic reactions were partially controlled with prednisone and thalidomide. Thirty-three months following the leprosy treatment, he still experienced chronic reactions, and whole bacilli as well as globi were found on a new skin biopsy. Since coinfections can trigger type 2 reactions and the patient had close contact with animals and ticks, we investigated the presence of a Bartonella sp. infection. Bartonella henselae DNA was detected in a skin fragment obtained before the beginning of the leprosy retreatment. However, even after six months of a second leprosy MDT, he continued to experience type 2 chronic reactions. He was admitted to the hospital to undergo an intravenous antibiotic therapy for 14 days and then complete the treatment per os for ten more weeks. Leprosy reactions improved following the treatment for B. henselae. After completing the MDT treatment, he has been accompanied for sixty months with no signs of leprosy or leprosy reactions. The asymptomatic infection by B. henselaein this patient was considered the putative trigger of chronic leprosy reactions and leprosy relapse.
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Laurito TL, França FT, Vieira-Damiani G, Pelegati VB, Baratti MO, de Carvalho HF, Cesar CL, de Moraes AM, Cintra ML, Teixeira F. The texture of collagen in the microenvironments of Merkel cell carcinoma. Medicine (Baltimore) 2021; 100:e27925. [PMID: 34964766 PMCID: PMC8615296 DOI: 10.1097/md.0000000000027925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 10/18/2021] [Accepted: 11/08/2021] [Indexed: 02/07/2023] Open
Abstract
ABSTRACT Solid tumors typically contain high levels of fibrillar collagen. The increased stromal collagen deposition usually promotes cancer progression since biochemical and biophysical cues from tumor-associated collagen fibers stimulate neoplastic cells. Few studies have investigated the relationship between Merkel cell carcinoma (MCC) and the extracellular matrix (ECM), but there are no works evaluating collagen.This is an observational, analytical, retrospective study including 11 patients with MCC. Primary tumor-stained sections were evaluated by second harmonic generation microscopy and texture analysis.Peritumoral texture features (area fraction, mean gray value, entropy, and contrast) showed much lower values than normal skin (P < .0001) revealing extensively altered structure of peritumoral collagen fibers. These differences were not significant between tumors with unfavorable and favorable known prognostic factors.Profound changes in collagen fibers present in the stroma accompanying primary MCC may contribute to the aggressive behavior of this tumor. Our results indicate that whatever MCC histological subtype, size or anatomical location, MCC promotes the same type of ECM for its development. As an outlook, therapies using ECM macromolecules or fibroblasts (the architects of ECM remodeling) as target could be useful in the treatment of MCC.
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Affiliation(s)
- Tiago Luders Laurito
- Department of Pathology, Faculty of Medical Sciences, State University of Campinas, Rua Tessália Vieira de Camargo, 126. Cidade Universitária Zeferino Vaz, Campinas, SP, Brazil
| | - Flávia Thomé França
- Department of Pathology, Faculty of Medical Sciences, State University of Campinas, Rua Tessália Vieira de Camargo, 126. Cidade Universitária Zeferino Vaz, Campinas, SP, Brazil
| | - Gislaine Vieira-Damiani
- Federal Institute of Education, Science and Technology of São Paulo, Avenida Ênio Pires de Camargo, 2971, Capivari, SP, Brazil
| | - Vitor Bianchin Pelegati
- National Institute of Photonics Applied to Cell Biology, Department of Quantum Electronics, Institute of Physics, State University of Campinas, Rua Sergio Buarque de Holanda, 777, SP, Brazil
| | - Mariana Ozello Baratti
- National Institute of Photonics Applied to Cell Biology, Department of Quantum Electronics, Institute of Physics, State University of Campinas, Rua Sergio Buarque de Holanda, 777, SP, Brazil
| | - Hernandez Faustino de Carvalho
- National Institute of Photonics Applied to Cell Biology, Department of Quantum Electronics, Institute of Physics, State University of Campinas, Rua Sergio Buarque de Holanda, 777, SP, Brazil
| | - Carlos Lenz Cesar
- National Institute of Photonics Applied to Cell Biology, Department of Quantum Electronics, Institute of Physics, State University of Campinas, Rua Sergio Buarque de Holanda, 777, SP, Brazil
| | - Aparecida Machado de Moraes
- Department of Dermatology, Faculty of Medical Sciences, State University of Campinas, Rua Tessália Vieira de Camargo, 126. Cidade Universitária Zeferino Vaz, Campinas, SP, Brazil
| | - Maria Letícia Cintra
- Department of Pathology, Faculty of Medical Sciences, State University of Campinas, Rua Tessália Vieira de Camargo, 126. Cidade Universitária Zeferino Vaz, Campinas, SP, Brazil
| | - Fernanda Teixeira
- Department of Pathology, Faculty of Medical Sciences, State University of Campinas, Rua Tessália Vieira de Camargo, 126. Cidade Universitária Zeferino Vaz, Campinas, SP, Brazil
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de Lima-Souza RA, Vallarelli AFA, Viviane Mariano F, Cintra ML. Multiple cutaneous fistula after titanium dental implant: A case report. Clin Implant Dent Relat Res 2021; 23:270-274. [PMID: 33393197 DOI: 10.1111/cid.12972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/11/2020] [Accepted: 12/17/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Dental implants allow functional and aesthetic reestablishment. Titanium (Ti) implants emerge as the preferred choice because Ti is considered an inert material, highly resistant to corrosion. However, virtually no material can be considered universally biocompatible and this includes titanium. PURPOSE To report an unusual presentation of inflammatory reaction after a Ti dental implant. MATERIALS AND METHODS The patient presented to a dermatology clinic to evaluate lesions on her face. She reported the placement of dental implants 2 years earlier, one of which evolved with inflammatory signs and instability a few days after the procedure. As anti-inflammatory and antibiotic therapy were fruitless, after 3 months the implant was removed, but the inflammation persisted. On physical examination, painful erythematous-papule-nodular lesions were found on the left mandibular and submandibular region. RESULTS Culture tests for microorganisms were negative and histopathological examination revealed a chronic fistula with a foreign body reaction. Using X-ray fluorescence, Ti particles were found along the fistula wall. CONCLUSIONS Professionals should be aware of complications arising from dental implants, including Ti implants. Detailed anamnesis and laboratory investigation can assure diagnosis for specific therapeutic approaches.
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Affiliation(s)
| | | | - Fernanda Viviane Mariano
- Department of Pathology, School of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Maria Letícia Cintra
- Department of Pathology, School of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
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Neves Ferreira Velho PE, Rovani Drummond M, Zaninelli Schreiber A, Cintra ML. Mycetoma-like phaeohyphomycosis treated with terbinafine. IDCases 2020; 19:e00705. [PMID: 32025492 PMCID: PMC6996009 DOI: 10.1016/j.idcr.2020.e00705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 01/16/2020] [Accepted: 01/16/2020] [Indexed: 11/05/2022] Open
Affiliation(s)
- Paulo Eduardo Neves Ferreira Velho
- Division of Dermatology, Department of Medicine, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil.,Applied Research on Dermatology and Bartonella Infection Laboratory, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
| | - Marina Rovani Drummond
- Applied Research on Dermatology and Bartonella Infection Laboratory, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
| | | | - Maria Letícia Cintra
- Department of Pathology, University of Campinas (UNICAMP) Medical School, Campinas, Sao Paulo, Brazil
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12
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Genaro LM, Coser LDO, Justo-Junior ADS, de Castro LF, Barreto AKF, Rizzato AE, Trabasso P, Mamoni RL, Pereira RM, Cintra ML, Santos LN, Carvalho MD, Ruas LP, Blotta MHDSL. Association between IL-27 and Tr1 cells in severe form of paracoccidioidomycosis. Cytokine 2020; 127:154962. [PMID: 31901599 DOI: 10.1016/j.cyto.2019.154962] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 12/03/2019] [Accepted: 12/23/2019] [Indexed: 02/07/2023]
Abstract
Interleukin-27, a cytokine of the IL-12 family, is secreted by antigen-presenting cells such as macrophages and dendritic cells (DCs). Recent studies suggest an anti-inflammatory role for IL-27 by inducing IL-10 producing Tr1 cells capable of inhibiting Th1 and Th17 type responses. Our study aimed to investigate the involvement of IL-27 and Tr1 cells in the immunomodulation of paracoccidioidomycosis (PCM), the most prevalent systemic mycosis in Brazil. The presence of IL-27 was evaluated in serum and biopsies of patients with PCM by ELISA, immunohistochemistry, and immunofluorescence. The presence of Tr1 in peripheral blood was analyzed by flow cytometry. In vitro assays were performed to verify the ability of P. brasiliensis yeast to induce IL-27 production by DCs and macrophages, as well as the polarization of lymphocytes to the Tr1 phenotype. Patients with the acute form and severe chronic form, the most severe and disseminated forms of PCM, presented higher serum concentrations of IL-27 and higher percentage of Tr1 cells compared to patients with mild chronic form. IL-27 was also detected in lesions of patients with PCM and associated with DCs and macrophages. P. brasiliensis Pb18 yeasts were able to induce IL-27 production by both DCs and macrophages. We found that DCs pulsed with Pb18 were able to induce Tr1 lymphocytes in vitro. Our data suggest that IL-27 and Tr1 cells could contribute to the deficient immune response to P. brasiliensis that leads to severe and disseminated forms of the disease.
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Affiliation(s)
- Lívia Moreira Genaro
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil; Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Material, São Paulo, Brazil
| | - Lilian de Oliveira Coser
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Amauri da Silva Justo-Junior
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Lívia Furquim de Castro
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | | | | | - Plínio Trabasso
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Ronei Luciano Mamoni
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil; Faculty of Medicine of Jundiai, Jundiai, São Paulo 13202-550, Brazil
| | - Ricardo Mendes Pereira
- Department of Pediatrics, Faculty of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Maria Letícia Cintra
- Department of Pathology, Faculty of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Luana Nunes Santos
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Material, São Paulo, Brazil
| | - Murilo de Carvalho
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Material, São Paulo, Brazil
| | - Luciana Pereira Ruas
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil; Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Material, São Paulo, Brazil
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Cunha-Silva M, da Costa JG, Faria GAS, Massuda JY, Cintra ML, da Costa LBE, Assad VM, de Ataíde EC, Mazo DFDC, Sevá-Pereira T. Diarrhea: a missed D in the 4D glucagonoma syndrome. Autops Case Rep 2019; 9:e2019129. [PMID: 31807436 PMCID: PMC6880768 DOI: 10.4322/acr.2019.129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 09/26/2019] [Indexed: 12/11/2022] Open
Abstract
Glucagonoma is a rare and slow-growing pancreatic tumor that usually manifests as glucagonoma syndrome. It is mainly characterized by a typical Dermatosis named necrolytic migratory erythema (NME), Diabetes and glucagon oversecretion. Deep vein thrombosis and Depression complete this set. We report the case of an advanced glucagonoma with liver spread, where all these 4D symptoms occurred but a chronic secretory Diarrhea was the most relevant feature. A 65-year-old man was referred to our center to investigate multiple hepatic nodules evidenced by abdominal tomography. He had a recent diagnosis of diabetes and complained of significant weight loss (25 kg), crusted skin lesions and episodes of a large amount of liquid diarrhea during the past 6 months. On admission, there were erythematous plaques and crusted erosions on his face, back and limbs, plus angular cheilitis and atrophic glossitis. The typical skin manifestation promptly led dermatologists to suspect glucagonoma as the source of our patient’s symptoms. A contrast-enhanced abdominal computed tomography showed a hypervascularized pancreatic lesion and multiple hepatic nodules also hypervascularized in the arterial phase. Despite initial improvement of diarrhea after subcutaneous octreotide, the patient’s impaired nutritional status limited other therapeutic approaches and he died of respiratory failure due to sepsis. His high levels of serum glucagon were not yet available so we performed an autopsy, confirming the diagnosis of metastatic glucagonoma with NME on histology. Chronic diarrhea is not a common feature in glucagonoma syndrome; however, its severity can lead to serious nutritional impairment and set a poor outcome.
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Affiliation(s)
- Marlone Cunha-Silva
- University of Campinas, Department of Gastroenterology (Gastrocentro). Campinas, SP, Brazil
| | | | | | | | | | | | | | | | | | - Tiago Sevá-Pereira
- University of Campinas, Department of Gastroenterology (Gastrocentro). Campinas, SP, Brazil
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Leite OG, Tagliolatto S, Souza EMD, Cintra ML. Acantholytic pityriasis rubra pilaris associated with topical use of imiquimod 5%: case report and literature review. An Bras Dermatol 2019; 95:63-66. [PMID: 31789270 PMCID: PMC7058836 DOI: 10.1016/j.abd.2019.01.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 01/08/2019] [Indexed: 11/25/2022] Open
Abstract
Topical use of immune response modifiers, such as imiquimod, has increased in dermatology. Although its topical use is well tolerated, it may be associated with exacerbations of generalized cutaneous inflammatory diseases, possibly through the systemic circulation of pro-inflammatory cytokines. This report describes a case of development of pityriasis rubra pilaris, a rare erythematous-papulosquamous dermatosis, in a woman aged 60 years during treatment with imiquimod 5% cream for actinic keratosis. It evolved with erythrodermic conditions and palmoplantar keratoderma, presenting progressive clinical resolution after the introduction of methotrexate. The authors emphasize the importance of recognizing possible systemic reactions associated with the topical use of imiquimod.
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Affiliation(s)
| | - Sandra Tagliolatto
- Dermoclínica, Campinas, SP, Brazil; Department of Dermatology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Elemir Macedo de Souza
- Discipline of Dermatology, Department of Clinical Medicine, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Maria Letícia Cintra
- Department of Anatomical Pathology, Universidade Estadual de Campinas, Campinas, SP, Brazil
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15
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Visentainer L, Massuda JY, Cintra ML, Magalhães RF. Vancomycin-induced linear IgA bullous dermatosis (LABD)-an atypical presentation. Clin Case Rep 2019; 7:1091-1093. [PMID: 31110752 PMCID: PMC6509886 DOI: 10.1002/ccr3.2039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 11/26/2018] [Accepted: 12/04/2018] [Indexed: 11/15/2022] Open
Abstract
We report an uncommon presentation of bullous dermatosis by linear IgA. There are few cases reported in the literature with this form of presentation starting with mucosal lesions and then evolving into a similar bullous pemphigoid pattern. In addition, we emphasize the importance of direct immunofluorescence for the definitive diagnosis.
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16
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Utino FL, Garcia M, Velho PENF, França AFEDC, Stelini RF, Pelegati VB, Cesar CL, de Souza EM, Cintra ML, Damiani GV. Second-harmonic generation imaging analysis can help distinguish sarcoidosis from tuberculoid leprosy. J Biomed Opt 2018; 23:1-7. [PMID: 30516038 DOI: 10.1117/1.jbo.23.12.126001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
Sarcoidosis and tuberculoid leprosy (TL) are prototypes of granulomatous inflammation in dermatology, which embody one of the histopathology limitations in distinguishing some diseases. Recent advances in the use of nonlinear optical microscopy in skin have enabled techniques, such as second-harmonic generation (SHG), to become powerful tools to study the physical and biochemical properties of skin. We use SHG images to analyze the collagen network, to distinguish differences between sarcoidosis and TL granulomas. SHG images obtained from skin biopsies of 33 patients with TL and 24 with sarcoidosis retrospectively were analyzed using first-order statistics (FOS) and second-order statistics, such as gray-level co-occurrence matrix (GLCM). Among the four parameters evaluated (optical density, entropy, contrast, and second angular moment), only contrast demonstrated statistical significance, being higher in sarcoidosis (p = 0.02; 4908.31 versus 2822.17). The results may indicate insufficient differentiating power for most tested FOS and GLCM parameters in classifying sarcoidosis and TL granulomas, when used individually. But in combination with histopathology (H&E and complementary stains, such as silver and fast acid stains), SHG analysis, like contrast, can contribute to distinguishing between these diseases. This study can provide a way to evaluate collagen distribution in granulomatous diseases.
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Affiliation(s)
- Fabiane Leonel Utino
- University of Campinas, Department of Pathology, Campinas, Brazil
- University of Campinas, Department of Dermatology, Campinas, Brazil
| | - Marina Garcia
- University of Campinas, Department of Pathology, Campinas, Brazil
| | | | | | | | - Vitor Bianchin Pelegati
- Technology on Photonics Applied to Cell Biology, Campinas, Brazil
- University of Campinas, "Gleb Wataghin" Institute of Physics, Campinas, Brazil
| | - Carlos Lenz Cesar
- Technology on Photonics Applied to Cell Biology, Campinas, Brazil
- University of Campinas, "Gleb Wataghin" Institute of Physics, Campinas, Brazil
- Federal University of Ceará, Department of Physics, Fortaleza, Brazil
| | | | | | - Gislaine Vieira Damiani
- Technology on Photonics Applied to Cell Biology, Campinas, Brazil
- Federal Institute of Education, Science and Technology, São Paulo, Brazil
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17
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Stelini RF, Neves NM, de Souza SPM, Florence MEB, Sánchez-Romero C, Soares AB, de Almeida OP, Cintra ML. Dermal vasculature and melanocytic proliferation index in photodamaged skin in the assessment of lateral margins of lentigo maligna and lentigo maligna melanoma. Int J Clin Exp Pathol 2018; 11:4703-4710. [PMID: 31949871 PMCID: PMC6962966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 07/27/2018] [Indexed: 06/10/2023]
Abstract
Lentigo maligna (LM) is the most common subtype of melanoma on the face. When it invades the dermis it is called lentigo maligna melanoma (LMM). Its histological delimitation is controversial due to subjectivity. Analysis of peritumoral vasculature and proliferation index of melanocytes may help to differentiate tumor areas from tumor-free areas, as neoplasia-induced angiogenesis in such scenarios, as well as the higher proliferation index of melanocytes in melanomas, are well established. This work compares the peritumoral vasculature and melanocyte proliferation index of LM and LMM with that of adjacent non-neoplastic skin and sun-damaged skin (control). Forty-three resection cases of LM and LMM were selected retrospectively. Immunohistochemistry was performed for anti-CD31 and anti-CD105 to assess vascularization. Melanocyte proliferation index double labeling was performed using the anti-Melan-A and anti-Ki-67. The Chalkley optical grid was used to quantify blood vessel hotspots. Doubly labeled cells with anti-Melan-A and anti-Ki-67 were counted at tumor, free margin, and control skin. Microvasculature quantification under the melanomas, for both CD31 and CD105, was greater than at the margins of the same specimens (P < 0.0001; P = 0.0001) and greater than control skin (P = 0.0016; P = 0.0027), with higher density for CD31 than CD105. The mean number of double-labeled proliferating melanocytes at the melanoma periphery was greater than at the adjacent free skin and control skin (P = 0.0011). The control skin samples showed the highest CD31-positive vasculature in the head and neck region, with a positive correlation between melanocytic proliferation index and vasculature. The presence of neovascularization (CD105) and proliferating melanocytes (Ki67+/Melan-A+) are suspicious findings for LM/LMM, helping to outline, diagnose, and evaluate tumor margins.
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Affiliation(s)
- Rafael Fantelli Stelini
- Department of Anatomical Pathology, Faculty of Medical Sciences, University of CampinasCampinas, São Paulo, Brazil
| | - Natalia Maria Neves
- Department of Anatomical Pathology, Faculty of Medical Sciences, University of CampinasCampinas, São Paulo, Brazil
| | | | | | - Celeste Sánchez-Romero
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, Brazil
| | - Andresa Borges Soares
- The Department of Oral Pathology, São Leopoldo Mandic Institute and Research CenterCampinas, São Paulo, Brazil
| | - Oslei Paes de Almeida
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, Brazil
| | - Maria Letícia Cintra
- Department of Anatomical Pathology, Faculty of Medical Sciences, University of CampinasCampinas, São Paulo, Brazil
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18
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Carmo RLML, Cintra ML, Velho PENF, Macedo LT. Subclinical leprosy manifesting as a reversal reaction after LHRH agonist administration. IDCases 2018; 12:32-33. [PMID: 29942743 PMCID: PMC6010934 DOI: 10.1016/j.idcr.2018.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 11/24/2022] Open
Affiliation(s)
- R L M L Carmo
- Oncology Division, Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Brazil
| | - Maria Letícia Cintra
- Department of Pathology, Faculty of Medical Sciences, State University of Campinas, Brazil
| | | | - Lígia Traldi Macedo
- Oncology Division, Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Brazil
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19
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Affiliation(s)
- Bruna Morassi Sasso
- University of Campinas (Unicamp), Hospital das Clínicas do Estado, Department of Dermatology and Pathology. Campinas, SP, Brazil
| | - Maria Letícia Cintra
- University of Campinas (Unicamp), Hospital das Clínicas do Estado, Department of Pathology. Campinas, SP, Brazil
| | - Elemir Macedo de Souza
- University of Campinas (Unicamp), Hospital das Clínicas do Estado, Department of Dermatology and Pathology. Campinas, SP, Brazil
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20
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Quintanilha JCF, Visacri MB, Amaral LS, Lima CSP, Cintra ML, Moriel P. Leukocytoclastic vasculitis complicating cisplatin + radiation treatment for laryngeal cancer: a case report. BMC Cancer 2017; 17:831. [PMID: 29212535 PMCID: PMC5719589 DOI: 10.1186/s12885-017-3848-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 11/27/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Leukocytoclastic vasculitis is typically mediated by deposition of immune complexes and is related to many causes, including medication. To the best of our knowledge, leukocytoclastic vasculitis related to cisplatin has not yet been described in the scientific literature. CASE PRESENTATION We report a rare case of leukocytoclastic vasculitis after the first cycle of high-dose cisplatin chemotherapy in a patient with larynx carcinoma. A 48-year-old Caucasian man with larynx carcinoma received a high-dose of cisplatin monochemotherapy (100 mg/m2 every 21 days), along with 70 Gy of radiotherapy divided into 35 sessions, as a therapeutic schedule. Twelve days after the first chemotherapy administration and after 8 sessions of radiotherapy (total of 16 Gy), the patient presented with acute onset of palpable purpura in the lower limbs. The patient was hospitalized for 10 days, and during this period, he underwent several examinations to rule out infectious, autoimmune, and neoplastic disorders. A skin biopsy showed leukocytoclastic vasculitis with a positive pattern for IgM and C3, as detected through direct immunofluorescence. Twenty-five days after cisplatin administration, the chemotherapy regimen was changed to carboplatin AUC 5, and the episodes of purpura ceased, reinforcing the hypothesis of an adverse reaction to cisplatin. CONCLUSIONS Cisplatin can induce leukocytoclastic vasculitis and clinicians should be aware of this potential effect for better case management and diagnosis.
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Affiliation(s)
- Júlia Coelho França Quintanilha
- School of Medical Sciences (FCM), University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo Street, Campinas, SP, 13083-8871, Brazil
| | - Marília Berlofa Visacri
- School of Medical Sciences (FCM), University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo Street, Campinas, SP, 13083-8871, Brazil
| | - Laís Sampaio Amaral
- School of Medical Sciences (FCM), University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo Street, Campinas, SP, 13083-8871, Brazil
| | - Carmen Silvia Passos Lima
- School of Medical Sciences (FCM), University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo Street, Campinas, SP, 13083-8871, Brazil
| | - Maria Letícia Cintra
- School of Medical Sciences (FCM), University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo Street, Campinas, SP, 13083-8871, Brazil
| | - Patricia Moriel
- School of Medical Sciences (FCM), University of Campinas (UNICAMP), 126 Tessália Vieira de Camargo Street, Campinas, SP, 13083-8871, Brazil. .,Faculty of Pharmaceutical Sciences (FCF), University of Campinas (UNICAMP), 200 Cândido Portinari Street, Campinas, SP, 13083-871, Brazil.
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21
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Utino FL, Damiani GV, Garcia M, Soares TCB, Stelini RF, Velho PENF, de Souza EM, Cintra ML. Histomorphometric approach to differentiate skin lesions of tuberculoid leprosy from sarcoidosis. J Cutan Pathol 2017; 45:111-117. [DOI: 10.1111/cup.13064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/04/2017] [Accepted: 10/19/2017] [Indexed: 01/28/2023]
Affiliation(s)
| | | | - Marina Garcia
- Pathology Department; University of Campinas (UNICAMP); Campinas Brazil
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22
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Campos GR, Boin IDFSF, Campos IDD, Cintra ML. Study of factors affecting the incidence of skin cancer in patients after liver transplant. An Bras Dermatol 2017; 92:492-498. [PMID: 28954097 PMCID: PMC5595595 DOI: 10.1590/abd1806-4841.20175946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 12/10/2016] [Indexed: 01/08/2023] Open
Abstract
Background Many factors are currently being identified as potential inductors of skin
cancer in patients after a liver transplant, among them, immunosuppressive
regimen. Objective To study the factors that influence the incidence of skin cancer in patients
after liver transplant. Methods We have carried out a retrospective and observational study with 170
transplanted patients who had undergone transplantation from 1997 to 2010.
We have adjusted the multiple logistic regression model (saturated model) to
the ensemble of collected data using skin cancer as dependent variable,
indicated in anatomopathological analysis between 1997 and 2014. Results Incidence of skin cancer was 9.4%. Predictors were incidence of diabetes in
the third year after the transplantation (p=0.047), not using tacrolimus in
the first year after the transplantation (p=0.025) and actinic keratosis
(p=0.003). Study Limitations An important limitation is that the interpretation of the results was based
on information collected of patients undergoing transplantation at a single
center. Future research, multicentric and involving larger and more diverse
populations, are needed. Conclusions Factors found might contribute to Brazilian surveillance programs associated
with decreased incidence of skin cancer.
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Affiliation(s)
- Gabriela Rached Campos
- Post-Graduation Program in Surgery Sciences of School of Medical Sciences of Universidade Estadual de Campinas (FCM-Unicamp) - Campinas (SP), Brazil
| | | | - Ivan Dias de Campos
- Post-Graduation Program in Surgery Sciences of School of Medical Sciences of Universidade Estadual de Campinas (FCM-Unicamp) - Campinas (SP), Brazil
| | - Maria Letícia Cintra
- Department of Pathologic Anatomy of School of Medical Sciences of Universidade Estadual de Campinas (FCM-Unicamp) - Campinas (SP), Brazil
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23
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Velho PENF, Drummond MR, Adad MAH, Cintra ML, Sowy S, Diniz PPVDP. Chronic lymphadenopathy caused by a Brazilian strain of Bartonella henselae. Rev Inst Med Trop Sao Paulo 2017; 59:e62. [PMID: 28876415 PMCID: PMC5587032 DOI: 10.1590/s1678-9946201759062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 06/06/2017] [Indexed: 11/29/2022] Open
Abstract
Bartonella henselae is a relevant causative agent of bartonelloses
in humans. We described an immunocompetent patient with clinical manifestation of
chronic cervical lymphadenopathy after a cat-scratch in her forearm. This case shows
B. henselae infection persistence even after prolonged antibiotic
treatment.
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Affiliation(s)
| | | | | | | | - Stanley Sowy
- Western University of Health Sciences, Pomona, California, USA
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24
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Mattos KPH, Cintra ML, Gouvêa IR, Ferreira LÁ, Velho PENF, Moriel P. Skin hyperpigmentation following intravenous polymyxin B treatment associated with melanocyte activation and inflammatory process. J Clin Pharm Ther 2017; 42:573-578. [PMID: 28497462 DOI: 10.1111/jcpt.12543] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/03/2017] [Indexed: 11/28/2022]
Abstract
What is known and objective Polymyxins were widely used until the 1960s; however, they fell into disfavour owing to their toxicity. The subsequent growth of infections caused by multidrug-resistant Gram-negative bacteria has led to renewed use of this class of antimicrobials in clinical practice. Acquired skin hyperpigmentation (SH) following intravenous polymyxin B treatment has been previously reported, but little is known about its pathogenesis, clinical course and treatment. To improve understanding of these issues, we conducted a prospective study of adult patients receiving intravenous polymyxin B treatment. Methods Patients receiving intravenous polymyxin B treatment were followed throughout the course of treatment. Clinical, dermatoscopic, histologic and immunohistochemical skin properties of patients who presented with SH were studied. Results and discussion Skin hyperpigmentation was noted in 8% of patients (n=20/249); however, clinical, dermatoscopic, histologic and immunohistochemical examinations were performed only in three patients for whom the consent of relatives was obtained. Histologic and immunohistochemical findings showed an abundant melanocyte-pigmented dendritic network. Langerhans cells' hyperplasia and dermal IL-6 overexpression were also found, presumably for an inflammatory process due to polymyxin B use. As polymyxin B causes the release of histamine, which is known for its melanogenic effect, it is possible that skin darkening is associated with this inflammatory mediator. What is new These clinical and dermatoscopic findings contribute to a better understanding of how the pigmentary reaction manifests following intravenous polymyxin B treatment. Conclusion We concluded that hyperpigmentation due to intravenous polymyxin B treatment is associated with an inflammatory process and subsequent melanocyte activation. Although the pigmentary disorder neither influences the outcome of the therapy nor warrants discontinuation of treatment, it nevertheless considerably affects the patient's quality of life.
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Affiliation(s)
- K P H Mattos
- Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - M L Cintra
- Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - I R Gouvêa
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, SP, Brazil
| | - L Á Ferreira
- Dermatoscopy and melanoma Department of the Clinical Hospital of University of Campinas, Sao Paulo, SP, Brazil
| | - P E N F Velho
- Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil.,Dermatoscopy and melanoma Department of the Clinical Hospital of University of Campinas, Sao Paulo, SP, Brazil
| | - P Moriel
- Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, SP, Brazil
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25
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Sasso BM, Fidelis MC, Cintra ML, Padoveze EH. Surgical correction of severe rhynophyma. Surgical & Cosmetic Dermatology 2017. [DOI: 10.5935/scd1984-8773.201792995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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26
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Ruas LP, Pereira RM, Braga FG, Lima XT, Mamoni RL, Cintra ML, Schreiber AZ, Calich VLG, Blotta MHSL. Severe Paracoccidioidomycosis in a 14-Year-Old Boy. Mycopathologia 2016; 181:915-920. [PMID: 27364896 DOI: 10.1007/s11046-016-0035-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/23/2016] [Indexed: 10/21/2022]
Abstract
Paracoccidioidomycosis (PCM) is the most important systemic mycoses in Latin America. We describe a severe case of paracoccidioidomycosis in a 14-year-old boy, with a rapid disease progression. The fungal strain was isolated and inoculated into a T and/or B cell immunocompromised mice, which revealed a highly virulent strain. The case report presented herein emphasizes the importance of considering PCM in the differential diagnosis of patients with other infectious diseases in endemic areas and highlights a novel isolate.
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Affiliation(s)
- L P Ruas
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessalia Vieira de Camargo, 126, Campinas, São Paulo, 13083-878, Brazil
| | - R M Pereira
- Department of Pediatrics, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - F G Braga
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessalia Vieira de Camargo, 126, Campinas, São Paulo, 13083-878, Brazil
| | - X T Lima
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessalia Vieira de Camargo, 126, Campinas, São Paulo, 13083-878, Brazil.,School of Medicine, University of Fortaleza (UNIFOR), Fortaleza, Ceará, Brazil
| | - R L Mamoni
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessalia Vieira de Camargo, 126, Campinas, São Paulo, 13083-878, Brazil
| | - M L Cintra
- Department of Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - A Z Schreiber
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessalia Vieira de Camargo, 126, Campinas, São Paulo, 13083-878, Brazil
| | - V L G Calich
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - M H S L Blotta
- Department of Clinical Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessalia Vieira de Camargo, 126, Campinas, São Paulo, 13083-878, Brazil.
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27
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Vieira-Damiani G, Ericson ME, da Silva MN, Gupta K, Soares TB, de Almeida AR, Pelegati VB, Baratti MO, Cesar CL, Cintra ML, Velho PENF. Bartonella henselae initial infection of mature human erythrocytes observed in real time using bacterial endogenous fluorescence. ACTA ACUST UNITED AC 2016; 4. [PMID: 29034332 DOI: 10.4172/2329-891x.1000207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Bartonella henselae is a causative agent of anemia, cat scratch disease, bacillary angiomatosis, recurrent fever, hepatitis, endocarditis, chronic lymphadenopathy, joint and neurological disorders. B. henselae are intra-erythrocytic bacteria. The goal of this study was to visualize the B. henselae invasion into enucleated human red blood cells in real time using bacterium endogenous fluorescence. We took advantage of the unique fluorescence emission spectral profile of the bacteria. We used a linear unmixing approach to separate the fluorescence emission spectra of human erythrocytes from native B. henselae when excited at 488nm. Human blood samples were inoculated with B. henselae and incubated for 60 hours. 3-D live images were captured at select intervals using multi-photon laser scanning microscopy. Uninfected blood samples were also analyzed. This study revealed bacteria entering mature erythrocytes over a 60 hour time period.
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Affiliation(s)
- Gislaine Vieira-Damiani
- Division of Dermatology, Department of Medicine, State University of Campinas, Medical Sciences School, Campinas, Brazil.,Parana Federal Institute of Education, Science and Technology
| | - Marna Elise Ericson
- Department of Dermatology, University of Minnesota Medical School, Minneapolis, USA
| | - Marilene Neves da Silva
- Division of Dermatology, Department of Medicine, State University of Campinas, Medical Sciences School, Campinas, Brazil
| | - Kalpna Gupta
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Medical School, Minneapolis, USA
| | - Tânia Benetti Soares
- Division of Dermatology, Department of Medicine, State University of Campinas, Medical Sciences School, Campinas, Brazil
| | - Amanda Roberta de Almeida
- Division of Dermatology, Department of Medicine, State University of Campinas, Medical Sciences School, Campinas, Brazil
| | | | - Mariana Ozello Baratti
- National Institute of Science and Technology on Photonics Applied to Cell Biology (INFABIC)
| | - Carlos Lenz Cesar
- National Institute of Science and Technology on Photonics Applied to Cell Biology (INFABIC)
| | - Maria Letícia Cintra
- Department of Pathology, State University of Campinas, Medical Sciences School, Campinas, Brazil
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Bertanha L, Vallarelli AF, Dias EP, Cintra ML. Patient with numerous papules and spontaneous pneumothorax. J Am Acad Dermatol 2014; 71:e233-4. [PMID: 25454039 DOI: 10.1016/j.jaad.2014.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 04/01/2014] [Accepted: 04/09/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Laura Bertanha
- Discipline of Dermatology, Department of Clinical Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | - Andrelou F Vallarelli
- Discipline of Dermatology, Department of Clinical Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | - Eliana P Dias
- Discipline of Nephrology, Department of Clinical Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | - Maria Letícia Cintra
- Department of Pathology, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil.
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Pimentel CB, Moraes AMD, Cintra ML. Angiogenic effects of cryosurgery with liquid nitrogen on the normal skin of rats, through morphometric study. An Bras Dermatol 2014; 89:410-3. [PMID: 24937813 PMCID: PMC4056697 DOI: 10.1590/abd1806-4841.20142249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Accepted: 05/14/2013] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Cryosurgery is an efficient therapeutic technique used to treat benign and
malignant cutaneous diseases. The primary active mechanism of cryosurgery is
related to vascular effects on treated tissue. After a cryosurgical
procedure, exuberant granulation tissue is formed at the injection site,
probably as a result of angiogenic stimulation of the cryogen and
inflammatory response, particularly in endothelial cells. OBJECTIVE To evaluate the angiogenic effects of freezing, as part of the phenomenon of
healing rat skin subjected to previous injury. METHODS Two incisions were made in each of the twenty rats, which were divided
randomly into two groups of ten. After 3 days, cryosurgery with liquid
nitrogen was performed in one of incisions. The rats' samples were then
collected, cut and stained to conduct histopathological examination, to
assess the local angiogenesis in differing moments and situations. RESULTS It was possible to demonstrate that cryosurgery, in spite of promoting cell
death and accentuated local inflammation soon after its application, induces
quicker cell proliferation in the affected tissue and maintenance of this
rate in a second phase, than in tissue healing without this procedure. CONCLUSIONS These findings, together with the knowledge that there is a direct
relationship between mononuclear cells and neovascularization (the
development of a rich system of new vessels in injury caused by cold),
suggest that cryosurgery possesses angiogenic stimulus, even though complete
healing takes longer to occur. The significance level for statistical tests
was 5% (p<0,05).
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Bittencourt C, Ferraro DA, Soares TCB, Moraes AM, Cintra ML. Chronic telogen effluvium and female pattern hair loss are separate and distinct forms of alopecia: a histomorphometric and immunohistochemical analysis. Clin Exp Dermatol 2014; 39:868-73. [PMID: 25156792 DOI: 10.1111/ced.12406] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND Chronic telogen effluvium (CTE), a poorly understood condition, can be confused with or may be a prodrome to female pattern hair loss (FPHL). The pathogenesis of both is related to follicle cycle shortening and possibly to blood supply changes. AIM To analyze a number of histomorphometric and immunohistochemical findings through vascular endothelial growth factor (VEGF), Ki-67, and CD31 immunostaining in scalp biopsies of 20 patients with CTE, 17 patients with mild FPHL and 9 controls. METHODS Ki-67 index and VEGF optical density were analyzed at the follicular outer sheath using ImageJ software. CD31 microvessel density was assessed by a Chalkley grid. RESULTS Significant follicle miniaturization and higher density of nonanagen follicles were found in FPHL, compared with patients with CTE and controls. Ki-67+ index correlated positively with FPHL histological features. The FPHL group showed the highest VEGF optical density, followed by the CTE and control groups. No differences were found in CD31 microvessel density between the three groups. CONCLUSIONS Histomorphometric results establish CTE as a distinct disorder, separate from FPHL from its outset. Its pathogenic mechanisms are also distinct. These findings support the proposed mechanism of 'immediate telogen release' for CTE, leading to cycle synchronization. For FPHL, accelerated anagen follicular mitotic rates and, thus, higher Ki-67 and VEGF values, would leave less time for differentiation, resulting in hair miniaturization.
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Affiliation(s)
- C Bittencourt
- Department of Pathology, Unicamp, Campinas, São Paulo, Brazil
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31
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Oliveira C, Lourenço GJ, Rinck-Junior JA, Cintra ML, Moraes AM, Lima CSP. Association between genetic polymorphisms in apoptosis-related genes and risk of cutaneous melanoma in women and men. J Dermatol Sci 2014; 74:135-41. [PMID: 24461648 DOI: 10.1016/j.jdermsci.2013.12.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 12/20/2013] [Accepted: 12/25/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND The P53 Arg72Pro, MDM2 c.+309T>G, BAX c.-248G>A, and BCL2 c.-717C>A polymorphisms have variable roles in the apoptosis pathways. OBJECTIVE To clarify the roles of these polymorphisms in the risk for cutaneous melanoma (CM). METHODS Genomic DNA of 200 CM patients and 215 controls was analyzed by PCR-RFLP. RESULTS In women, the frequencies of BAX GG (83.0% vs. 71.0%, P=0.04), BCL2 AA (32.0% vs. 15.0%, P=0.003), P53 ArgArg plus BAX GG (84.9% vs. 63.2%, P=0.01), P53 ArgArg plus BCL2 AA (37.0% vs. 13.1%, P=0.003), BAX GG plus BCL2 AA (70.3% vs. 33.3%, P=0.001), MDM2 GG plus BAX GG plus BCL2 AA (27.3% vs. 3.7%, P=0.03), and P53 ArgArg plus MDM2 GG plus BAX GG plus BCL2 AA (33.3% vs. 5.6%, P=0.04) genotypes were higher in patients than in controls. Female carriers of the respective genotypes were under 1.98 (95% CI: 1.01-3.91), 2.87 (95% CI: 1.43-5.77), 3.48 (95% CI: 1.34-9.04), 4.23 (95% CI: 1.63-10.96), 6.04 (95% CI: 2.10-17.37), 25.61 (95% CI: 1.29-507.24), and 25.69 (95% CI: 1.11-593.59)-fold increased risks for CM than others, respectively. In men, the frequencies of BCL2 CA+AA (83.0% vs. 67.6%, P=0.01) and MDM2 TG+GG plus BCL2 CA+AA (94.2% vs. 68.3%, P=0.003) genotypes were higher in patients than in controls. Male carriers of the respective genotypes were under 2.43 (95% CI: 1.23-4.82) and 9.22 (95% CI: 2.16-39.31)-fold increased CM risks than others, respectively. CONCLUSION The data suggest for the first time that P53 Arg72Pro, MDM2 c.+309T>G, BAX c.-248G>A, and BCL2 c.-717C>A polymorphisms, enrolled in apoptosis pathways, constitute distinct determinants of CM in women and men.
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Affiliation(s)
- Cristiane Oliveira
- Clinical Oncology Service, Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas, Campinas, São Paulo, Brazil
| | - Gustavo Jacob Lourenço
- Clinical Oncology Service, Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas, Campinas, São Paulo, Brazil
| | - José Augusto Rinck-Junior
- Clinical Oncology Service, Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas, Campinas, São Paulo, Brazil
| | - Maria Letícia Cintra
- Pathology Dermatology Service, Faculty of Medical Sciences, Department of Anatomical Pathology, University of Campinas, Campinas, São Paulo, Brazil
| | - Aparecida Machado Moraes
- Dermatology Service, Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas, Campinas, São Paulo, Brazil
| | - Carmen Silvia Passos Lima
- Clinical Oncology Service, Faculty of Medical Sciences, Department of Internal Medicine, University of Campinas, Campinas, São Paulo, Brazil.
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Silva Dos Santos L, Drummond MR, da Costa França AFE, Cintra ML, Ferreira Velho PEN. Paraffin-embedded tissue: an alternative to Bartonella sp. infection diagnosis. J Dtsch Dermatol Ges 2013; 16:1147-1148. [PMID: 24251729 DOI: 10.1111/ddg.13607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Alvarez IM, Puggina J, Machado HC, Stelini RF, Florence ME, Souza EMD, Cintra ML. Distribution of histological diagnoses of black and white skin in Campinas, diseases Brazil, from 1993 to 2009. J Bras Patol Med Lab 2013. [DOI: 10.1590/s1676-24442013000400007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Branco MM, Capitani EMD, Cintra ML, Hyslop S, Carvalho AC, Bucaretchi F. Coma blisters after poisoning caused by central nervous system depressants: case report including histopathological findings. An Bras Dermatol 2012; 87:615-7. [PMID: 22892778 DOI: 10.1590/s0365-05962012000400016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 06/01/2011] [Indexed: 11/22/2022] Open
Abstract
Blister formation and eccrine sweat gland necrosis is a cutaneous manifestation associated with states of impaired consciousness, most frequently reported after overdoses of central nervous system depressants, particularly phenobarbital. The case of a 45-year-old woman who developed "coma blisters" at six distinct anatomic sites after confirmed (laboratory) phenobarbital poisoning, associated with other central nervous system depressants (clonazepam, promethazine, oxcarbazepine and quetiapine), is presented. A biopsy from the left thumb blister taken on day 4 revealed focal necrosis of the epidermis and necrosis of sweat gland epithelial cells; direct immunofluorescence was strongly positive for IgG in superficial blood vessel walls but negative for IgM, IgA, C3 and C1q. The patient was discharged on day 21 with no sequelae.
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Affiliation(s)
- Maira Migliari Branco
- Campinas Poison Control Center, Medical Science School, State University of Campinas, SP, Brazil.
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35
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Lage D, Juliano PB, Metze K, Souza EMD, Cintra ML. Lichen planus and lichenoid drug-induced eruption: a histological and immunohistochemical study. Int J Dermatol 2012; 51:1199-205. [DOI: 10.1111/j.1365-4632.2011.05113.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Moraes PC, Noce CW, Thomaz LA, Cintra ML, Correa MEP. Pigmented lichenoid drug eruption secondary to chloroquine therapy: an unusual presentation in lower lip. Minerva Stomatol 2011; 60:327-332. [PMID: 21666569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Antimalarial drugs, like chloroquine, may produce hyperpigmentation of the oral mucosa, affecting most commonly the palate. Its pathogenesis is not clear; an increased production of melanin is currently believed to be the cause of this oral manifestation. The purpose of this study was to report a case of atypical oral mucosal hyperpigmentation secondary to antimalarial therapy. A 66-year-old, dark skinned woman was evaluated for oral pigmentation. The patient had a history of chloroquine therapy, and presented a diffuse blue-gray pigmentation in the hard palate and, mainly, in the lower lip. Diagnostic hypothesis were of physiologic pigmentation, drug-induced pigmentation, pigmentation associated with systemic diseases, smoker's melanosis and post-inflammatory pigmentation. Incisional biopsy was conducted and histopathological examination revealed lichenoid dermatitis and pigment incontinence. Fontana-Masson staining was positive for melanin, but Perl's iron staining was negative. The histopathological diagnosis was consistent with melanin incontinence related to drug-induced lichenoid reaction secondary to chloroquine therapy. Adequate correlation of clinical and microscopic aspects was essential for the definitive diagnosis, especially in atypical cases. This diagnosis is of great relevance for the patient, since the oral manifestation might be an early sign of ocular complications due to antimalarial therapy. Therefore, the identification of these oral manifestations indicates regular evaluations by an ophtalmologist, preventing greater complications of antimalarial therapy for the patient.
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Affiliation(s)
- P C Moraes
- Department of Stomatology and Oral and Maxillofacial Surgery, São Leopoldo Mandic Dental School Campinas, Brazil
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Abstract
Os angioceratomas são tumores benignos caracterizados por ectasia dos vasos sanguíneos da derme papilar associada à acantose e hiperceratose da epiderme. Ao exame dermatológico, os angioceratomas de Fordyce caracterizam-se por lesões papulo-ceratóticas de coloração eritemato-violácea. São mais comuns no escroto, sendo raramente relatada a localização vulvar. A histopatologia é particularmente importante para difer enciá-los de outros tumores benignos e malignos. O artigo relata o caso de uma mulher negra de meia idade com história de obstipação intestinal, varizes de membros inferiores e cesárea há 20 anos que apresentava múltiplos angioceratomas vulvares há três meses.
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Pimentel VN, de Matos LS, Soares TCB, Adam R, Metze K, Correa MEP, de Souza CA, Cintra ML. Perforin and granzyme B involvement in oral lesions of lichen planus and chronic GVHD. J Oral Pathol Med 2011; 39:741-6. [PMID: 20618609 DOI: 10.1111/j.1600-0714.2010.00917.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Oral lesions of lichen planus and chronic graft-vs.-host disease (cGVHD) have similar clinical and histological features, but distinct etiology. Apoptosis induced by cytotoxic T lymphocyte has been proposed as a mechanism of keratinocytes death. Cytotoxicity can be mediated by granules containing granzyme B and perforin. Since common features can reflect similarities in immunological mechanisms, we studied the role of those molecules in both diseases. METHODS We analyzed 29 cases of oral lichen planus and 27 of oral cGVHD. The sections were studied on H&E, perforin and granzyme B staining. RESULTS The total means (epithelium plus connective tissue number) of the granzyme B- and perforin-positive cells were significantly higher in cGVHD than in oral lichen planus lesions (P<0.05). Also, it was found that the higher the number of perforin+ cells, the higher the number of granzyme-B+ cells in the epithelium and in the connective tissue for both groups (P < 0.05). In oral lichen planus, the number of single apoptotic bodies had a positive correlation with connective tissue granzyme immunostaining and a negative correlation with perforin (P<0.01). On the contrary, in oral cGVHD, the number of apoptotic body clusters presented a positive correlation with connective tissue perforin (P<0.01). CONCLUSIONS Our findings indicate that apoptosis in oral lichen planus seems to be correlated with granzyme B release, while in oral cGVHD, perforin seems to be more important. Although these diseases present clinical and histological similarities, subtle differences seem to exist in their pathogenetic mechanisms.
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Florence MEB, Massuda JY, Bröcker EB, Metze K, Cintra ML, Souza EMD. Angiogenesis in the progression of cutaneous squamous cell carcinoma: an immunohistochemical study of endothelial markers. Clinics (Sao Paulo) 2011; 66:465-8. [PMID: 21552674 PMCID: PMC3072009 DOI: 10.1590/s1807-59322011000300018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 12/07/2010] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To demonstrate the role of angiogenesis in the progression of cutaneous squamous cell carcinoma. INTRODUCTION Angiogenesis is a pivotal phenomenon in carcinogenesis. Its time course in cutaneous squamous cell carcinoma has not yet been fully established. METHODS We studied the vascular bed in 29 solar keratoses, 30 superficially invasive squamous cell carcinomas and 30 invasive squamous cell carcinomas. The Chalkley method was used to quantify the microvascular area by comparing panendothelial (CD34) with neoangiogenesis (CD105) immunohistochemical markers. The vascular bed from non-neoplastic adjacent skin was evaluated in 8 solar keratoses, 10 superficially invasive squamous cell carcinomas and 10 invasive squamous cell carcinomas. RESULTS The microvascular area in CD105-stained specimens significantly increased in parallel with cutaneous squamous cell carcinoma progression. However, no differences between groups were found in CD34 sections. Solar keratosis, superficially invasive squamous cell carcinoma and invasive squamous cell carcinoma samples showed significant increases in microvascular area for both CD34- and CD105-stained specimens compared with the respective adjacent skin. DISCUSSION The angiogenic switch occurs early in the development of cutaneous squamous cell carcinoma, and the rate of neovascularization is parallel to tumor progression. In contrast to panendothelial markers, CD105 use allows a dynamic evaluation of tumor angiogenesis. CONCLUSION This study demonstrated the dependence of skin carcinogenesis on angiogenesis.
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Abstract
Some Bartonella species are able to invade red blood cells (RBC) and may cause persistent infection in the susceptible host. Use of transmission electron microscopy (TEM) demonstrates, inside erythrocytes, the typical triple-walled agents. However, when examining ultrathin sections of blood cells, the authors have, on several occasions, detected intraerythrocytic abnormalities that mimic but are not typical of Bartonella spp. Small endovesicles, pseudoinclusions, cavities, and irregular hemoglobin granules distribution, resulting in regions of increased or decreased electron density, may be observed in the erythrocytes and platelets, which may be confused with bartonellas. So far, detailed ultrastructural findings of Bartonella spp. in blood cells have not yet been described. Aiming to improve TEM interpretation of blood cells changes, in routine examination of blood sections of patients with suspected bartonellosis, the authors studied the morphological findings they have observed, and present their putative nature, according to information in the literature.
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Affiliation(s)
- Luiza Helena Urso Pitassi
- Department of Dermatology, Medical School, State University of Campinas (UNICAMP), Campinas, Brazil.
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Scherrer DZ, Alexandrino F, Cintra ML, Sartorato EL, Steiner CE. Type II autosomal recessive cutis laxa: report of another patient and molecular studies concerning three candidate genes. Am J Med Genet A 2008; 146A:2740-5. [PMID: 18819152 DOI: 10.1002/ajmg.a.32345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cutis laxa is a rare disorder of connective tissue in which the skin sags excessively, giving the individual an aged appearance. In the present study we analyzed three unrelated families with type II autosomal recessive cutis laxa for mutations in three genes implicated in other forms of cutis laxa; LOX, FBLN4, and FBLN5 genes. Two individuals have been previously reported, and the third case is described in detail. No causative mutations were identified.
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Affiliation(s)
- Daniel Zanetti Scherrer
- Faculty of Medical Sciences, Department of Medical Genetics, State University of Campinas, Campinas, SP, Brazil
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Basso FG, Boer CC, Corrêa MEP, Torrezan M, Cintra ML, de Magalhães MHCG, da Silva Santos P, de Souza CA. Skin and oral lesions associated to imatinib mesylate therapy. Support Care Cancer 2008; 17:465-8. [DOI: 10.1007/s00520-008-0536-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2008] [Accepted: 11/07/2008] [Indexed: 10/21/2022]
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Abstract
The purpose of this study was to investigate clinical and histomorphometric features of cat skin under long-term solar exposure. Ear skin of 34 Domestic Shorthair cats that were chronically exposed to sun was classified as follows: group 0, normal (n = 13); group 1, initial stage of photodamage (PD) (n = 10); group 2, advanced stage of PD (n = 11). Histologic sections were examined independently by 2 pathologists, and epidermal thickness, adnexal unit area, and dermal cellularity were assessed by morphometry. A positive correlation was obtained between age, degree of edema and sclerosis in the upper dermis, telangiectases, squamatization of basal keratinocytes, and epidermis thickness and the degree of PD. The area occupied by adnexal structures in the dermis diminished with increased PD. Dermal sclerosis and edema best separated the 3 groups. The results indicated a high level of skin hypersensitivity to sun rays in cats. The findings may be useful for clinical testing and in general veterinary pathology and dermatology.
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Affiliation(s)
- E M P Almeida
- Department of Pathology, Veterinary Division, State University of Campinas (UNICAMP), São Paulo, Brazil
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44
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Magalhães RF, Cruvinel GT, Cintra GF, Cintra ML, Ismael APPB, de Moraes AM. Diagnosis and Follow-Up of Keratoacanthoma-Like Lesions: Clinical-Histologic Study of 43 Cases. J Cutan Med Surg 2008; 12:163-73. [DOI: 10.2310/7750.2008.07042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background: Keratoacanthoma (KA) is easily confused with squamous cell carcinoma (SCC) on a clinical or a histopathologic basis. However, KA undergoes spontaneous regression, whereas SCC does not. Objective: Our objective was to study the histopathologic features associated with clinical regression in KA-like lesions to support the therapeutic option. Methods: Forty-three biopsies of KA-like lesions were taken at patient admission. One month later, surgical excision was performed in 18 growing lesions. Regressing lesions were left untreated. Classic histopathologic features and diagnosis were blindly recorded in both biopsies and surgical specimens. Results: On a clinical and a histologic basis, 32 lesions were assessed as KA and 11 as SCC. Features that indicated malignancy were observed in both groups, but the probability of SCC was 31 times higher in tumors with five or more of such features. Several of the histologically atypical lesions were found to regress. Conclusion: SCCs and KAs have more pathologic similarities than differences, especially in the proliferative phase. The combination of the most useful features did not allow the nosologic diagnosis in difficult cases but helped. Differential diagnosis was easier to determine after the 1-month follow up. Complete surgical excision should be indicated in nonregressing and growing lesions.
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Affiliation(s)
- Renata Ferreira Magalhães
- From the Dermatology Division, Department of Internal Medicine, and Department of Pathology, School of Medical Sciences, UNICAMP, São Paulo, Brazil
| | - Gabriela Torres Cruvinel
- From the Dermatology Division, Department of Internal Medicine, and Department of Pathology, School of Medical Sciences, UNICAMP, São Paulo, Brazil
| | - Geórgia Fontes Cintra
- From the Dermatology Division, Department of Internal Medicine, and Department of Pathology, School of Medical Sciences, UNICAMP, São Paulo, Brazil
| | - Maria Letícia Cintra
- From the Dermatology Division, Department of Internal Medicine, and Department of Pathology, School of Medical Sciences, UNICAMP, São Paulo, Brazil
| | - Ana Paula Palu Baltieri Ismael
- From the Dermatology Division, Department of Internal Medicine, and Department of Pathology, School of Medical Sciences, UNICAMP, São Paulo, Brazil
| | - Aparecida Machado de Moraes
- From the Dermatology Division, Department of Internal Medicine, and Department of Pathology, School of Medical Sciences, UNICAMP, São Paulo, Brazil
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Puggina J, Andrade LALA, Souza EM, Cintra ML. Comparison of vulvar skin diseases in black and white women: a histopathological study. J Eur Acad Dermatol Venereol 2008; 22:1391-2. [PMID: 18331314 DOI: 10.1111/j.1468-3083.2008.02654.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Magalhães RF, Velho PENF, Machado de Moraes A, Cintra ML, Biral AC, Kraemer MHS, Macedo de Souza E. Linear psoriasis in Brazilian children and HLA haplotypes. J Eur Acad Dermatol Venereol 2007; 21:1439-40. [DOI: 10.1111/j.1468-3083.2007.02255.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Multibacillary, lepromatous or borderline leprosy patients may present two types of vasculonecrotic reactions: Lucio phenomenon and that associated with erythema nodosum leprosum. Despite they can be distinguished through clinical and histological characteristics; both are often used as synonyms. It is said that leprosy reaction should be properly classified for therapeutic reasons, since it is well known that in Lucio phenomenon there is not a good response to thalidomide. The authors reported two cases of vasculonecrotic phenomena in lepromatous leprosy sharing clinical and histopathological characteristics of both reaction subtypes. The findings may indicate the spectral nature of the reaction phenomena in leprosy and emphasize the importance of the clinic-pathological correlation for proper classification. Our findings may contribute to the understanding of leprosy reactions pathogenesis, broaden the knowledge about their outcome with standard treatment, and provide the scientific background to design better therapeutic strategies for these complications.
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Affiliation(s)
- Letícia Fogagnolo
- Departments of Dermatology, Medical School, State University of Campinas
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Lira M, Schenka AA, Magna LA, Cotta AC, Cintra ML, de Souza EM, Brousset P, Vassallo J. Diagnostic value of combining immunostaining for CD3 and nuclear morphometry in mycosis fungoides. J Clin Pathol 2007; 61:209-12. [PMID: 17496190 DOI: 10.1136/jcp.2007.048553] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Mycosis fungoides (MF) is the most common skin lymphoid neoplasm. In initial stages, differential diagnosis of MF from other benign dermal lymphoid infiltrates (BDLI) may be impossible on morphological basis alone. In previous studies, only deletion of CD7 in MF proved to be of diagnostic help, but not the ratio between immunoexpression of CD4 and CD8. METHODS 30 cases of MF and 11 cases of BDLI were analysed, in order to compare morphometric parameters, which could be of diagnostic aid. As CD7 is frequently deleted in MF, immunohistochemical detection of T-cells was made using an antibody to CD3. Images of 100 CD3-positive cells per case in both groups were captured and analysed using a simple computer program for nuclear perimeter, area, diameter and nuclear contour index. RESULTS All parameters showed statistically significant higher values for MF. Area was the variable with the strongest discriminating power between the two groups of patients. Thus even if morphological evaluation is not accurate to distinguish benign versus malignant dermal lymphoid infiltrates, due to the variability of size and shape of these cells, a more sensitive method promptly shows this difference. CONCLUSION Results suggest that morphometry of CD3-positive lymphoid cells may add valuable information in the differential diagnosis of MF and benign dermatoses.
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Affiliation(s)
- M Lira
- Faculty of Medical Sciences, State University of Campinas, Unicamp, Campinas, São Paulo, Brazil
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Abstract
We report the case of a 34-year-old white man with a 7-year history of nodules on the face, neck, upper torso, and arms which evolved to anetodermic lesions. After onset of these lesions, deep vein thrombosis developed in the patient's right arm and leg in association with circulating antiphospholipid antibodies.
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Metze K, Bedin V, Adam RL, Macedo de Souza E, Cintra ML. ‘Recurrent’ basal cell carcinomas may represent new primary neoplasias: differences between aggressive and nonaggressive histologic subtypes. J Plast Reconstr Aesthet Surg 2007; 60:451-3. [PMID: 17349608 DOI: 10.1016/j.bjps.2006.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Accepted: 11/07/2006] [Indexed: 11/26/2022]
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