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1.
J Am Acad Dermatol ; 65(2): 297-303, 2011 Aug.
Article in English | MEDLINE | ID: mdl-21531039

ABSTRACT

BACKGROUND: The dermatoscopic examination of the nail plate has been recently introduced for the evaluation of pigmented nail lesions. There is, however, no evidence that this technique improves diagnostic accuracy of in situ melanoma. OBJECTIVE: To establish and validate patterns for intraoperative dermatoscopy of the nail matrix. METHODS: Intraoperative nail matrix dermatoscopy was performed in 100 consecutive bands of longitudinal melanonychia that were excised and submitted to histopathologic examination. RESULTS: We identified 4 dermatoscopic patterns: regular gray pattern (hypermelanosis), regular brown pattern (benign melanocytic hyperplasia), regular brown pattern with globules or blotch (melanocytic nevi), and irregular pattern (melanoma). LIMITATIONS: Nail matrix dermatoscopy is an invasive procedure that can not routinely be performed in all cases of melanonychia. CONCLUSION: The patterns described present high sensitivity and specificity for intraoperative differential diagnosis of pigmented nail lesions.


Subject(s)
Dermoscopy/methods , Intraoperative Care/methods , Nail Diseases/pathology , Nevus, Pigmented/pathology , Skin Neoplasms/pathology , Adult , Aged , Cohort Studies , Diagnosis, Differential , Female , Humans , Male , Middle Aged , Nail Diseases/diagnosis , Nail Diseases/surgery , Nevus, Pigmented/diagnosis , Nevus, Pigmented/surgery , Reproducibility of Results , Risk Assessment , Skin Neoplasms/diagnosis , Skin Neoplasms/surgery
2.
An Bras Dermatol ; 85(3): 375-9, 2010.
Article in English, Portuguese | MEDLINE | ID: mdl-20676474

ABSTRACT

First described in 1872, Kaposi's sarcoma is defined as a rare multifocal tumor that originates in the endothelial cells and presents with cutaneous and extracutaneous manifestations. The classic form is most common in elderly men and progression is slow. This tumor responds well to chemotherapy and radiotherapy. This report describes a classic case of Kaposi's sarcoma in a woman with skin and visceral manifestations in whom the disease rapidly progressed to a fatal outcome.


Subject(s)
Sarcoma, Kaposi , Skin Neoplasms , Fatal Outcome , Female , Humans , Middle Aged , Sarcoma, Kaposi/pathology , Skin Neoplasms/pathology
3.
An. bras. dermatol ; 85(3): 376-379, jun. 2010. ilus
Article in English, Portuguese | LILACS | ID: lil-553047

ABSTRACT

Descrito em 1872, o sarcoma de Kaposi é neoplasia multicêntrica rara originária de células endoteliais com manifestação cutânea e extracutânea. A forma clássica é muito mais frequente em homens idosos, com evolução prolongada e boa resposta a quimioterapia e radioterapia. Apresentaremos um caso de sarcoma de Kaposi clássico com comprometimento cutâneo e visceral em paciente do sexo feminino com rápida evolução fatal.


First described in 1872, Kaposi's sarcoma is defined as a rare multifocal tumor that originates in the endothelial cells and presents with cutaneous and extracutaneous manifestations. The classic form is most common in elderly men and progression is slow. This tumor responds well to chemotherapy and radiotherapy. This report describes a classic case of Kaposi's sarcoma in a woman with skin and visceral manifestations in whom the disease rapidly progressed to a fatal outcome.


Subject(s)
Female , Humans , Middle Aged , Sarcoma, Kaposi , Skin Neoplasms , Fatal Outcome , Sarcoma, Kaposi/pathology , Skin Neoplasms/pathology
4.
Dermatol Surg ; 36(4): 483-9, 2010 Apr.
Article in English | MEDLINE | ID: mdl-20180836

ABSTRACT

BACKGROUND: Oral isotretinoin is the criterion standard treatment for severe inflammatory acne associated with scar development. Atypical or exaggerated cicatrization related to oral isotretinoin was reported throughout the 1980s and 1990s. Dermabrasion for atrophic acne scar revision is not recommended 6 to 12 months from the end of oral isotretinoin treatment. OBJECTIVE: To evaluate wound healing after localized dermabrasion in patients receiving oral isotretinoin. MATERIALS & METHODS: Interventional, prospective study involving seven patients taking oral isotretinoin to treat acne and with atrophic acne scars on the face. Manual dermabrasion was performed on all patients in an area of approximately 1 cm(2), and a 6-month reepithelization follow-up by clinical evaluation was conducted. RESULTS: All patients presented normal cicatrization evolution; hypertrophic scarring or keloid as a result of localized abrasion was not observed, and atrophic acne scar revision result was excellent. CONCLUSION: The current recommendation to wait 6 to 12 months after treatment with oral isotretinoin for acne scar revision using dermabrasion should be re-evaluated. Abrasion of a small test area may be a useful predictor of wound healing, enabling earlier acne scar treatment using this procedure.


Subject(s)
Acne Vulgaris/complications , Acne Vulgaris/drug therapy , Cicatrix, Hypertrophic/surgery , Dermabrasion/methods , Dermatologic Agents/administration & dosage , Isotretinoin/administration & dosage , Acne Keloid/etiology , Acne Keloid/surgery , Administration, Oral , Adolescent , Adult , Cicatrix, Hypertrophic/etiology , Combined Modality Therapy , Face , Female , Humans , Isotretinoin/adverse effects , Male , Patient Satisfaction , Prospective Studies , Treatment Outcome , Wound Healing , Young Adult
5.
Surg. cosmet. dermatol. (Impr.) ; 2(1): 55-59, Jan.-Mar. 2010. ilus.
Article in English, Portuguese | LILACS | ID: biblio-884263

ABSTRACT

O melanoma cutâneo primário em regressão (melanoma em regressão) espontânea parcial é frequente, porém a regressão completa é rara. O diagnóstico é difícil, principalmente na regressão completa. Relatam-se três casos de melanoma em regressão nos quais a biópsia inicial não revelou melanoma, e o diagnóstico foi obtido pelas metástases. Não há consenso sobre o significado prognóstico da regressão. Nos casos descritos, o melanoma em regressão associou-se a pior prognóstico, pela própria característica do tumor ou dificuldade no diagnóstico precoce e estadiamento. Conclui-se que a regressão no melanoma primário pode conferir maior dificuldade ao diagnóstico e estadiamento, com consequente pior prognóstico. Deve-se indicar biópsia excisional de lesão suspeita sempre que possível.


The partial regression of cutaneous melanoma is a frequent event. Nevertheless, complete regression is a rare and difficult to diagnose condition.We report three cases of regressed cutaneous melanoma (RCM) whose initial biopsies did not reveal melanoma and in which the diagnosis was based on the presence of metastasis. There is no consensus about the prognosis of RCMs. Some authors relate a higher prevalence of metastasis, coinciding with our cases' outcomes, where the RCM had the worst prognosis due to the tumors' aggressiveness or to the difficulty in establishing an early diagnosis and staging. We have concluded that the regression of melanoma complicates the diagnosis, staging and formulation of a worst-case scenario prognosis. Excisional biopsy should always be the first choice.

6.
In. Belfort, FA; Wainstein, AJA. Melanoma: diagnóstico e tratamento. São Paulo, Lemar, 2010. p.29-36.
Monography in Portuguese | LILACS | ID: lil-561749
8.
Dermatol Online J ; 14(6): 11, 2008 Jun 15.
Article in English | MEDLINE | ID: mdl-18713592

ABSTRACT

We report a case of a 55-year-old man who, after a 6-month history of enlargement of cervical lymph nodes, presented with multiple painful ulcerations of the oral mucosa and lips and multiple skin erosions on the trunk, back, extremities, and genitals. A lymph node biopsy was performed and revealed diffuse peripheral B-cell non-Hodgkin lymphoma. Skin biopsy revealed an acantholytic blister in the epidermis. Direct immunofluorescence showed IgG deposition in the intercellular spaces of the epidermis and linear C3 deposition in the basement-membrane zone. The indirect immunofluorescence test on rat urinary bladder epithelium was positive with a 1:320 titre. Paraneoplastic pemphigus was diagnosed based on these findings; treatment was started with cyclophosphamide, doxorubicin, vincristin and prednisone. The patient's response to treatment was poor and he developed several complications and died 2 months after diagnosis.


Subject(s)
Lymphoma, Non-Hodgkin/complications , Paraneoplastic Syndromes/etiology , Pemphigus/etiology , Acantholysis/etiology , Acantholysis/pathology , Animals , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Back/pathology , Cyclophosphamide/adverse effects , Doxorubicin/adverse effects , Fatal Outcome , Fluorescent Antibody Technique, Direct/methods , Humans , Male , Middle Aged , Mouth Mucosa/pathology , Paraneoplastic Syndromes/drug therapy , Paraneoplastic Syndromes/metabolism , Paraneoplastic Syndromes/pathology , Pemphigus/drug therapy , Pemphigus/metabolism , Pemphigus/pathology , Prednisone/adverse effects , Rats , Skin/pathology , Vincristine/adverse effects
9.
An. bras. dermatol ; 81(6): 527-532, nov.-dez. 2006.
Article in Portuguese | LILACS | ID: lil-448200

ABSTRACT

FUNDAMENTOS: A capilaroscopia é método não invasivo e reprodutível capaz de analisar diretamente os capilares na região periungueal, auxiliando no diagnóstico diferencial das doenças do tecido conectivo. OBJETIVOS: Estudar, por meio da capilaroscopia periungueal, pacientes com lúpus eritematoso cutâneo crônico, lúpus eritematoso sistêmico e grupo controle. MÉTODOS: Foram analisados 70 pacientes pela capilaroscopia periungueal, sendo 37 com lúpus eritematoso cutâneo crônico e 33 com forma sistêmica, comparados a 32 indivíduos sadios. RESULTADOS: A presença de capilares ectasiados (p=0,027; p=0,001), enovelados (p=0,001; p=0,007) e em saca-rolhas (p=0,011;p=0,005), além de hemorragias capilares (p=0,004; p=0,001) foram parâmetros capazes de discriminar os dois grupos de pacientes do grupo controle. A variável capilar enovelado demonstrou ser preditiva para o diagnóstico de lúpus eritematoso sistêmico (OR=8,308). As variáveis independentes capilares ectasiados (OR=12,164) e hemorragias capilares (OR=5,652) foram preditoras para lúpus eritematoso cutâneo crônico. CONCLUSÃO: A capilaroscopia é útil na prática clínica, pois pacientes com alterações capilaroscópicas específicas parecem ter maior probabilidade de desenvolver lúpus eritematoso. As variáveis preditoras independentes para lúpus eritematoso sistêmico foram capilares enovelados e para lúpus eritematoso cutâneo crônico foram capilares ectasiados e hemorragias capilares.


BACKGROUND: Capillaroscopy is an useful diagnostic tool that is non-invasive, reproducible, able to assess the capillaries in the periungal region and that assists in the differential diagnosis of connective tissue diseases. OBJETIVES: The aim of the study was to distinguish chronic cutaneous lupus erythematosus and systemic lupus erythematosus from controls assessed by nailfold capillaroscopy. METHODS: Seventy patients with lupus erythematosus (37 with chronic cutaneous lupus erythematosus and 33 with systemic lupus erythematosus) were studied by the technique of capillary microscopy and compared to 32 controls. RESULTS: The presence of ectatic (p=0.027; p=0.001), meandering (p=0.001; p=0.007), corkscrew capillaries (p=0.011; p=0.005) and nailfold bleeding (p=0.004; p=0.001) distinguished between the two groups of patients (chronic cutaneous lupus erythematosus and systemic lupus erythematosus) from controls. The variable meandering loops could be predictive for systemic lupus erythematosus (OR=8.308). The independent variables ectatic loops (OR=12.164) end nailfold bleedings (OR=5.652) were predictive for chronic cutaneous lupus erythematosus. CONCLUSIONS: Capillaroscopy can help in the management of patients, since the presence of typical capillaroscopic abnormalities seems to be related to the development of lupus erythematosus. The independent predictive variables for systemic lupus erythematosus were meandering loops, and, for chronic cutaneous lupus erythematosus, ectasic loops and nailfold bleedings.

10.
An. bras. dermatol ; 81(supl.3): S309-S312, set.-out. 2006. ilus
Article in Portuguese | LILACS | ID: lil-445080

ABSTRACT

O pioderma gangrenoso pode apresentar-se como manifestação paraneoplásica. Relata-se um caso de pioderma gangrenoso, da variante bolhosa, acompanhado de bicitopenia, em que foi evidenciado, por meio de mielograma, biópsia de medula óssea e cariótipo, padrão compatível com síndrome mielodisplásica, subtipo citopenia refratária com displasia de multilinhagens. Foi tratado com dapsona, obtendo cicatrização das lesões. O pioderma gangrenoso pode associar-se a doenças sistêmicas, devendo a síndrome mielodisplásica ser considerada nos casos acompanhados de citopenias. Portanto, o pioderma gangrenoso pode ser um marcador cutâneo de doença sistêmica de prognóstico reservado.


Pyoderma gangrenosum can present as a cutaneous manifestation of paraneoplastic syndromes. A case of bullous pyoderma gangrenosum associated with bicytopenia is described. During the complementary investigation, myelogram, bone marrow biopsy and karyotype were performed, and showed a pattern consistent with myelodysplastic syndrome. The patient was treated with dapsone with improvement. Pyoderma gangrenosum can be a manifestation of systemic diseases. The possibility of myelodysplastic syndrome should always be considered in patients with pyoderma gangrenosum associated with cytopenia. Pyoderma gangrenosum could indicate poorer prognosis in patients with systemic diseases.

11.
J Clin Microbiol ; 44(11): 4279-82, 2006 Nov.
Article in English | MEDLINE | ID: mdl-17005758

ABSTRACT

We describe a rare case of a subcutaneous infection by both Phaeoacremonium venezuelense and Plectophomella sp. in a Brazilian male. Sequencing of a beta-tubulin gene fragment allowed us to confirm the identification of the former. However, a similar procedure of sequencing rRNA gene fragments was not useful for the identification of the latter fungus.


Subject(s)
Ascomycota/isolation & purification , DNA, Fungal/chemistry , Dermatomycoses/diagnosis , Mitosporic Fungi/isolation & purification , Adult , Ascomycota/genetics , Base Sequence , Dermatomycoses/microbiology , Dermatomycoses/pathology , Humans , Male , Mitosporic Fungi/genetics , Molecular Sequence Data , Sequence Analysis, DNA
12.
São Paulo med. j ; 123(4): 187-191, jul. 2005.
Article in English | LILACS | ID: lil-414414

ABSTRACT

CONTEXTO E OBJETIVO: Estudos recentes têm indicado que áreas de vitiligo contêm melanócitos inativos ou dormentes. A síntese de melanina está relacionada com a presença de tirosinase é indicadora de estado metabólico ativo. O escopo deste artigo é comparar repigmentação, distribuição epidérmica de melanócitos e detecção do RNAm de tirosinase através da reação de polimerase em cadeia por transcriptase reversa, em amostras de tecido de vitiligo, antes e após curetagem, seguido ou não por uma nova técnica de enxerto autólogo de pele. TIPO DE ESTUDO E LOCAL: Prospectivo, na Disciplina de Dermatologia da Faculdade de Medicina do ABC, Santo André. MÉTODOS: Duas áreas de vitiligo foram curetadas. Uma foi subseqüentemente enxertada com pele autóloga sacral normal, enquanto a outra não recebeu nenhum enxerto. As áreas curetadas foram examinadas após 30 dias, para avaliar o grau de repigmentação. A porcentagem de melanócitos e a presença de RNAm de tirosinase de pele normal e de pele de vitiligo (antes e após curetagem apenas e antes e após curetagem seguida de enxertia) foram comparadas. RESULTADOS: Repigmentação completa foi observada em todas as áreas enxertadas, enquanto as áreas de vitiligo apenas curetadas apresentaram repigmentação parcial. A porcentagem de melanócitos nas áreas enxertadas excederam as áreas de vitiligo não tratados (p = 0.01) e as áreas tratadas com curetagem simples (p = 0,015). RNAm de tirosinase foi negativo em 93.75 por cento das áreas não tratadas de vitiligo. Após tratamento (somente curetagem ou curetagem seguida de enxerto), todas as lesões tornaram-se positivas para RNAm de tirosinase. CONCLUSÃO: Melanócitos metabolicamente inativos ou dormentes estão provavelmente presentes dentro das áreas de vitiligo, e podem ser ativados por estímulos endógenos ou exógenos.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Middle Aged , Curettage/methods , Monophenol Monooxygenase/analysis , RNA, Messenger/analysis , Skin Transplantation/methods , Vitiligo/surgery , Cell Count , Melanocytes , Monophenol Monooxygenase/genetics , Prospective Studies , RNA, Messenger/genetics , Reverse Transcriptase Polymerase Chain Reaction , Treatment Outcome , Vitiligo/enzymology , Vitiligo/pathology
13.
Sao Paulo Med J ; 123(4): 187-91, 2005 Jul 07.
Article in English | MEDLINE | ID: mdl-16389417

ABSTRACT

CONTEXT AND OBJECTIVE: Recent studies have indicated that vitiligo areas contain inactive or dormant melanocytes. Melanin synthesis is related to tyrosinase presence and indicative of active metabolic state. The aim of this study was to compare repigmentation, epidermal melanocyte distribution and tyrosinase mRNA detection through reverse transcriptase polymerase chain reaction, in tissue samples of vitiligo, before and after curettage, with or without subsequent autologous skin graft using a new method. DESIGN AND SETTING: Prospective, in the Department of Dermatology, Faculdade de Medicina do ABC, Santo André. METHODS: Two vitiligo areas were curetted. One subsequently received grafted normal sacral autologous skin, whereas the other had no further treatment. The curetted areas were examined after 30 days, to evaluate the degree of repigmentation. The melanocyte percentages and tyrosinase mRNA presence in normal skin and vitiligo areas, before and after curettage and grafting, were compared. RESULTS: Complete repigmentation was seen in all grafted areas, whereas non-grafted curetted vitiligo presented partial repigmentation. The melanocyte percentage in grafted areas was greater than in non-treated vitiligo skin (p = 0.01) and skin with curettage alone (p = 0.015). Tyrosinase mRNA was negative in 93.75% of non-treated vitiligo areas. After treatment (curettage alone or curettage and grafting), all lesions became positive for tyrosinase mRNA. CONCLUSION: Metabolically inactive or dormant melanocytes are probably present within vitiligo areas, and may be activated by exogenous or endogenous stimuli.


Subject(s)
Curettage/methods , Monophenol Monooxygenase/analysis , RNA, Messenger/analysis , Skin Transplantation/methods , Vitiligo/surgery , Adolescent , Adult , Aged , Cell Count , Child , Female , Humans , Male , Melanocytes , Middle Aged , Monophenol Monooxygenase/genetics , Prospective Studies , Reverse Transcriptase Polymerase Chain Reaction , Treatment Outcome , Vitiligo/enzymology , Vitiligo/pathology
15.
An. bras. dermatol ; 79(5): 539-545, set.-out. 2004. tab
Article in Portuguese, English | LILACS | ID: lil-390755

ABSTRACT

FUNDAMENTO: O tratamento mais utilizado para pacientes com dermatoses bolhosas crônicas é a corticoterapia oral, muitas vezes em altas doses e por períodos prolongados. Como efeitos colaterais dessa terapêutica, freqüentemente ocorrem: hipertensão arterial, diabete, osteoporose, infecções e distúrbios hidroeletrolíticos. A catarata subcapsular posterior é raramente citada na literatura como efeito colateral da corticoterapia em pacientes com doenças bolhosas. OBJETIVO: Avaliar a prevalência de catarata subcapsular posterior como efeito colateral da corticoterapia oral. MÉTODOS: Trata-se de um estudo retrospectivo incluindo 49 pacientes com dermatoses bolhosas crônicas em uso de corticoterapia acompanhados entre janeiro de 1987 e dezembro de 1997 no ambulatório de Dermatoses Bolhosas do Departamento de Dermatologia da Unifesp/EPM e regularmente submetidos à avaliação oftalmológica em busca de catarata cortisônica. RESULTADOS: No período de 1987 a 1997, 49 pacientes foram avaliados, tendo apresentado prevalência de catarata subcapsular posterior como efeito colateral da corticoterapia oral de 28,57 por cento. CONCLUSÕES: 1) a prevalência de catarata foi de 28,57 por cento; 2) o tempo médio de tratamento até o surgimento de catarata foi de 45,71 meses; 3) a média da dose máxima de corticosteróide utilizada pelos pacientes foi de 78,57mg/dia.

16.
Med. cután. ibero-lat.-am ; 29(4): 234-238, jul. 2001. tab
Article in Pt | IBECS | ID: ibc-14747

ABSTRACT

Fundamentos: 0 tratamiento mais utilizado para os pacientes com dermatoses bolhosas cróni cas e a corticoterapia oral. muitas vetes em altas doses e por periodos prolongados. Como efeitos colatera s desta terapéutica, freqüentemente ocorrem: hipertensac arterial, diabete, osteoporose infecÇóes e disturbios hidroeletrolíticos. A catarata subcapsular posterior é raramente citada na literatura como efelto colateral da corticoterapia em pacientes com doenÇas bolhosas. Objetivo: Avaliar a ncidéncia de catarata subcapsula posterior como efeito colateral da corticoterapia oral. Tipo de estudo: Estudo retrospectivo. Pacientes: 49 pacientes com dermatoses bolhosas crónicas em uso de corticoterapia foram acompanhados entre janeirc de 1987 e dezembro de 1997 no ambulatório ce dermatoses bolhosas do Departamento de Dermatología da UNlFESPEPM. Estes toram regularmente submetidos a avaliacáo oftalmológica no iníc o no curso e no fim do tratamento em busca de catarata cortisónica. Resultados: No período de 1987 a 1997, 49 pacientes foram avaliados e a incidéncia de catarata subcapsular posterior como efelto colateral da corticoterapia oral restes pacientes fui de 28,57 por ciento. Conclusóes: l. A Incidéncia de catarata lo¡ de 28,57 por ciento. 2. 0 tempo médio de tratamento até o surgimento de catarata fui de 45,7 _ meses. 3. A media da dose máxima de corticosteróide utilizada pelos pacientes fui de 78,57 mg/dia (AU)


Subject(s)
Adult , Aged , Female , Male , Middle Aged , Humans , Adrenal Cortex Hormones/adverse effects , Cataract/chemically induced , Skin Diseases, Vesiculobullous/complications , Cataract/diagnosis , Adrenal Cortex Hormones/pharmacology , Adrenal Cortex Hormones/administration & dosage , Administration, Oral , Pemphigus/complications , Retrospective Studies , Incidence
18.
Rio de Janeiro; Sociedade Brasileira de Dermatologia; 2001. 32 p. tab, graf.
Monography in Portuguese | LILACS, HANSEN, Hanseníase Leprosy, SESSP-ILSLACERVO, Sec. Est. Saúde SP | ID: biblio-1086074
19.
São Paulo med. j ; 118(6): 165-8, Nov. 2000. tab
Article in English | LILACS | ID: lil-277623

ABSTRACT

CONTEXT: Sentinel node (SN) biopsy has changed the surgical treatment of malignant melanoma. The literature has emphasized the importance of gamma probe detection (GPD) of the SN. OBJECTIVE: Our objective was to evaluate the efficacy of patent blue dye (PBD) and GPD for SN biopsy in different lymphatic basins. DESIGN: Patients with cutaneous malignant melanoma in stages I and II were submitted to biopsy of the SN, identified by PBD and GPD, as part of a research project. SETTING: Patients were seen at Hospital São Paulo by a multidisciplinary group (Plastic Surgery Tumor Branch, Nuclear Medicine and Pathology). PATIENTS: 64 patients with localized malignant melanoma were studied. The median age was 46.5 years. The primary tumor was located in the neck, trunk or extremities. INTERVENTIONS: Preoperative lymphoscintigraphy, lymphatic mapping with PBD and intraoperative GPD was performed on all patients. The SN was examined by conventional and immunohistochemical staining. If the SN was not found or contained micrometastases, only complete lymphadenectomy was performed. MAIN MEASUREMENTS: The SN was identified by PBD if it was blue-stained, and by GPD if demonstrated activity five times greater than the adipose tissue of the neighborhood. RESULTS: Seventy lymphatic basins were explored. Lymphoscintigraphy showed ambiguous drainage in 7 patients. GPD identified the SN in 68 basins (97 percent) and PBD in 53 (76 percent). PBD and GPD identified SN in 100 percent of the inguinal basins. For the remaining basins both techniques were complementary. A metastatic SN was found in 10 basins. Three patients with negative SN had recurrence (median follow-up = 11 months). CONCLUSION: Although both GPD and PBD are useful and complementary, PBD alone identified the SN in 100 percent of the inguinal lymphatic basins


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Skin Neoplasms , Organotechnetium Compounds , Radiopharmaceuticals , Sentinel Lymph Node Biopsy , Coloring Agents , Melanoma , Skin Neoplasms/pathology , Aged, 80 and over , Evaluation Study , Intraoperative Period , Melanoma/pathology
20.
An. bras. dermatol ; 75(5): 573-580, set.-out. 2000. ilus
Article in Portuguese, English | LILACS | ID: lil-346246

ABSTRACT

O tratamento dos linfonodos regionais nos pacientes com melanoma localizado ainda continua controverso. A biópsia de linfonodo sentinela (LS) parece trazer uma luz para essa controvérsia, selecionando pacientes para se submeterem a lindadenectomia completa. O objetivo era avaliar a reprodutibilidade da técnica. Comparar resultados encontrados com a literatura. 85 pacientes, idade mediana de 43,5 anos, portadores de melanoma cutâneo localizado, espessura mediana de Breslow = 1,5mm, foram submetidos à biópsia de LS utilziando-se a AP e DGI. A linfocintigrafia mostrou drenagem ambígua em 18 pacientes totalizando 103 bases linfáticas. O LS foi encontrado em 96,6 por cento das bases e estava comprometido em 17 pacientes (20 por cento). Quatro pacientes (4,7 por cento) com LS negativo apresentaram recorrência (seguimento mediano de 17 meses). Nossa experiência corrobora os dados da literatura de que a biópsia de LS é uma técnica reprodutível e as taxas de encontro do LS e de falso-negativo estão dentro do esperado, porém, é preciso destacar a natureza ainda investigativa desse procedimento


Subject(s)
Humans , Adult , Immunohistochemistry , Lymph Node Excision , Melanoma
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