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1.
Cureus ; 16(1): e53111, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38414702

RESUMO

Background Non-alcoholic fatty liver disease (NAFLD) is characterized by hepatic steatosis. It is the leading cause of liver-related mortality, end-stage liver disease, and the need for liver transplantation. This study aimed to assess the level of awareness regarding NAFLD among the adult population in Jazan, Saudi Arabia, and to explore the determinants of the awareness level. Method This descriptive cross-sectional study was conducted among the general population of Jazan, Saudi Arabia, under the supervision of Jazan University, excluding those with end-stage liver failure. An online self-administered questionnaire, adopted from the literature, was sent through different social media platforms. A total of 1,034 people participated in this study. The chi-square test and multiple linear regression were used to identify the predictors of NAFLD awareness. Results Fifty-three percent of the participants were aware of NAFLD. The mean score of the participants' awareness was 22.7 ± 4.9 out of 40 points. Employed (95% confidence interval (CI): -1.9, -0.03; p = 0.044) and private business individuals (95% CI: -3.5, -1.1; p < 0.001) had a lower awareness level than students. The higher income level was associated with greater awareness (95% CI: 0.36, 2.4; p = 0.008). Those who had never heard of NAFLD had nearly twice as much awareness (95% CI: -3.0, -0.67; p = 0.002). Conclusions Nearly half the study participants displayed good awareness of NAFLD. However, efforts must focus on awareness campaigns, encouraging health-seeking behaviors, and targeted screening for early detection and treatment, especially in at-risk populations, since many participants were unaware of NAFLD.

2.
Saudi J Med Med Sci ; 11(2): 117-125, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37252018

RESUMO

A large number of soft tissue masses affect the foot and ankle, with the majority being benign. Benign and malignant soft tissue lesions usually present as lumps, and it is important to differentiate between them to allow for optimal management. Imaging, in particular magnetic resonance imaging (MRI), can contribute to narrow the differential diagnosis of soft tissue masses of the foot and ankle by describing its exact location, internal signal characteristics, presence of enhancement, and its relation to adjacent structures. In this review, we review the literature to describe the most common soft tissue masses around the foot and ankle, focusing on the MRI features of the lesions.

3.
Cureus ; 14(12): e32463, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36531789

RESUMO

Hypertrophy of the tensor fascia lata muscle is a rare entity that may be observed in patients presenting with a palpable mass in the antero-lateral aspect of the proximal thigh area. Imaging confirms the diagnosis of such a rare entity. This case report highlights a case of isolated hypertrophy of the tensor fascia lata muscle with no identifiable etiology. Biopsy and surgical intervention were not needed due to the interval stability throughout a three-year period. The orthopedic oncology team reassured the patient and followed up the patient annually.

4.
Materials (Basel) ; 14(19)2021 Sep 29.
Artigo em Inglês | MEDLINE | ID: mdl-34640064

RESUMO

Hybrid cement (HC) can be defined as alkali activated-blended-Portland cement (PC). It is prepared by the addition of an alkaline solution to high-volume aluminosilicate-blended-PC. Although this cement exhibits higher mechanical performance compared to conventional blended one (aluminosilicate-PC blend), it represents lower commercial viability because of the corrosive nature of alkaline solution. Therefore, this study focuses on the preparing one-part HC using dry activator-based BFS (DAS). DAS was prepared by mixing sodium hydroxide (NaOH) with BFS at low water to BFS ratio, followed by drying and grinding to yield DAS-powder. Different contents of DAS (equivalent to 70 wt.% BFS and 1, 2, and 3 wt.% NaOH) were blended with 30 wt.% PC. A mixture containing 70 wt.% BFS and 30 wt.% PC was used as a reference sample. The mortar was adjusted at a sand-powder (BFS-PC and/or DAS-PC) weight ratio of 3:1. The microstructural analysis proved that DAS-powder is mainly composed of sodium calcium aluminosilicate-activated species and unreacted BFS. These species can interact again with water to form calcium aluminum silicate hydrate (C-A-S-H) and NaOH, suggesting that the DAS acts as a NaOH-carrier. One-part HC mortars having 1, 2, and 3 wt.% NaOH recorded 7th day compressive strength values of 82%, 44%, and 27%, respectively, higher than that of the control sample. At 180 days of curing, a significant reduction in compressive strength was observed within the HC mortar having 3 wt.% NaOH. This could be attributed to the increase of Ca (within C-S-H) replacement by Na, forming a Na-rich phase with lower binding capacity. The main hydration products within HC are C-S-H, C-A-S-H, and chabazite as part of the zeolite family.

5.
Clin Neurol Neurosurg ; 182: 92-97, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31108342

RESUMO

OBJECTIVES: To determine the prevalence and prognostic value of MGMT promoter methylation and IDH1 mutation in glioblastoma multiforme (GBM) patients from the Middle East. PATIENTS AND METHODS: Records of patients diagnosed between 2003 and 2015 were reviewed. MGMT promoter methylation was measured using methylation-specific polymerase chain reaction and IDH-1 mutation was reported. The primary endpoint was overall survival (OS). RESULTS: A total of 110 patients were included. The median age was 51 years and 71 patients (64.5%) were males. The median diameter of GBM was 4.6 cm and 29 patients (26.4%) had multifocal disease. Gross total resection was achieved in 38 patients (24.9%). All patients received adjuvant radiation therapy, and 96 patients (91.4%) received concomitant temozolomide. At a median follow up of 13.6 months, the median OS was 17.2 months, and the OS at 1 and 2 years were 71.6% and 34.8%, respectively. On multivariate analysis, age at diagnosis (HR 1.019; P = 0.044) and multifocality (HR 2.373; P = 0.001) were the only independent prognostic variables. MGMT promoter methylation was found in 28.2% of patients but did not significantly correlate with survival (HR 1.160; P = 0.635). IDH-1 mutation was found in 10% of patients was associated with a non-significant trend for survival improvement (HR 0.502; P = 0.151). CONCLUSION: Patients with GBM from the Middle East have adequate survival outcomes when given the optimal treatment. In our patient population, MGMT promoter methylation did not seem to correlate with outcomes, but patients with IDH1 mutation had numerically higher survival outcomes.


Assuntos
Neoplasias Encefálicas/genética , Metilases de Modificação do DNA/genética , Glioblastoma/genética , Isocitrato Desidrogenase/genética , O(6)-Metilguanina-DNA Metiltransferase/genética , Adulto , Biomarcadores Tumorais/genética , Neoplasias Encefálicas/cirurgia , Metilação de DNA/genética , Enzimas Reparadoras do DNA/genética , Feminino , Glioblastoma/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Regiões Promotoras Genéticas/genética
6.
Int J Breast Cancer ; 2018: 8530318, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30009057

RESUMO

INTRODUCTION: Accurate evaluation of estrogen and progesterone receptors and HER2 is critical when diagnosing invasive breast cancer for optimal treatment. The current evaluation method is via immunohistochemistry (IHC). In this paper, we compared results of ER, PR, and HER2 from microarray gene expression to IHC in 81 fresh breast cancer specimens. METHODS: Gene expression profiling was performed using the GeneChip Human Genome U133 Plus 2.0 arrays (Affymetrix Inc). Immunohistochemical staining for estrogen receptor, progesterone receptor, and HER2 status was performed using standard methods at a CAP-accredited pathology laboratory. Concordance rates, agreement measures, and kappa scores were calculated for both methods. RESULTS: For ER, Kappa score was 0.918 (95% CI, 0.77.3-1.000) and concordance rate was 97.5% (95% CI, 91.4%-99.7%). For PR, Kappa score was 0.652 (95% CI, 0.405-0.849) and concordance rate was 86.4% (95% CI, 77%-93%). For HER2, Kappa score was 0.709 (95% CI, 0.428-0.916) and concordance rate was 97.5% (95% CI, 91.4%-99.7%). CONCLUSION: Our results are in line with the available evidence with the concordance rate being the lowest for the progesterone receptor. In general, microarray gene expression and IHC proved to have high concordance rates. Several factors can increase the discordance rate such as differences in sample processing.

7.
Int J Surg Pathol ; 24(2): 121-3, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26689690

RESUMO

Vascular transformation of lymph node sinuses represents a rare benign entity mimicking malignant counterparts such as nodal Kaposi sarcoma. The presence of mildly atypical benign mesothelial cells within nodal sinuses raises the possibility of metastatic malignancy. Herein, a rare case of vascular transformation of lymph node sinuses with reactive sinusoidal mesothelial cells is outlined as a unique benign pathology and a potential mimicker of a malignant collision tumor.


Assuntos
Vasos Sanguíneos/patologia , Carcinoma/patologia , Diagnóstico Diferencial , Células Epiteliais/patologia , Doenças Linfáticas/patologia , Biomarcadores/análise , Humanos , Imuno-Histoquímica , Achados Incidentais , Linfonodos/patologia , Masculino , Mediastino , Pessoa de Meia-Idade
8.
Case Rep Med ; 2014: 368907, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25371681

RESUMO

Purpose. To discuss an unusual presentation of ocular toxocariasis. Methods. Case report. Results. A 40-year-old woman presented with decreased vision in the left eye with a long history of recurrent red eye from uveitis. Eosinophilia and positive ELISA titers for Toxocara canis favored the diagnosis of ocular toxocariasis. Over 3 months, an anterior scleral mass had a rapid growth raising the possibility of medulloepithelioma, which rarely can mimic uveitic syndromes. Surgical plan changed from local excision to enucleation. Histopathology demonstrated a large homogeneous mass of chronic inflammatory cells with inflammation of the overlying thinned out sclera, medial rectus insertion, and limbal cornea. The triad of peripheral granuloma, eosinophilia, and positive blood serology established the diagnosis of ocular toxocariasis. Conclusions. Ocular toxocariasis can mimic ocular malignancy such as medulloepithelioma in adults and rarely presents as an anterior scleral mass.

9.
Am J Surg Pathol ; 38(3): 383-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24525508

RESUMO

Lymph nodes, particularly those draining in major anatomic sites like axilla, pelvis, and neck are potential sites for the occasional presence of ectopic tissue, usually representative of the organ being drained. Owing to the uncertainty surrounding the processes causing such findings, and particularly in the setting of lymph node dissection and sampling for cancer staging, intranodal epithelial inclusions, rare as they may be, might be fertile soil for overdiagnosis of metastatic disease. Intranodal papillary inclusions are particularly problematic and challenging because of their complex architecture that may easily mimic a metastasis. From the files of the Breast Consultation Service, Department of Pathology at the Vanderbilt University Medical Center in Nashville, we identified 6 cases in which histopathologic examination of axillary lymph nodes revealed intranodal papillary inclusions (papillary epithelial proliferations). One case showed atypical ductal hyperplasia, 1 showed low-grade ductal carcinoma in situ, and 1 showed usual ductal hyperplasia. The corresponding breast lesions were papillomas in 5 of 6 cases, 2 of which displayed atypical ductal hyperplasia, whereas 3 showed low-grade ductal carcinoma in situ. One case showed intermediate-grade invasive ductal carcinoma, and the associated intranodal papilloma lacked atypia. Our findings suggest that intranodal papillary proliferations are often, although not exclusively, associated with papillary and noninvasive breast neoplasms, hence highlighting the origin of these intranodal lesions as independent de novo nodal processes rather than metastatic deposits.


Assuntos
Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Carcinoma Intraductal não Infiltrante/patologia , Proliferação de Células , Células Epiteliais/patologia , Linfonodos/patologia , Papiloma/patologia , Idoso , Idoso de 80 Anos ou mais , Axila , Neoplasias da Mama Masculina/patologia , Erros de Diagnóstico/prevenção & controle , Feminino , Humanos , Hiperplasia , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Valor Preditivo dos Testes
10.
Diagn Cytopathol ; 42(5): 405-15, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24167007

RESUMO

Adequately cellular and representative fine-needle aspirates (FNAs) of breast have a high diagnostic accuracy. There is, however, a recognized category designated as "gray zone" where a definitive diagnosis cannot be reached. We reviewed our experience in this category to identify useful diagnostic parameters. Twenty-four such FNAs with surgical follow-up were retrieved from AUBMC files (2003-2009). Cytology slides were reviewed blindly. All cases were females, 29-73 years. There were three erroneous and 21 inconclusive diagnoses. The majority (15) was invasive adenocarcinomas: two cribriform, four tubular, one lobular, and eight not otherwise specified. The remaining cases were papillary and fibroepithelial tumors (three each), ductal carcinoma in situ, cribriform (two), and one adenomyoepithelioma (AME). Useful diagnostic features included: (1) Biphasic cell population with focal nuclear atypia and intranuclear and cytoplasmic vacuolar inclusions (AME). (2) Complex clusters of epithelial cells with cribriform architecture (cribriform carcinoma). (3) Rigid tubular epithelial structures with abrupt change in diameter, ending in pointed tips with abnormal branching (tubular carcinoma). (4) Cellular stromal fragments (fibroepithelial tumors). (5) Papillary fibrovascular cores, columnar cells, and three-dimensional papillary epithelial fragments (papillary tumors). Myoepithelial cells classically described in benign aspirates were not always a discriminatory factor. The "gray zone" in breast FNA is usually due to overlapping cytologic features of some benign and malignant lesions. Useful distinguishing cytologic features are described.


Assuntos
Adenocarcinoma/diagnóstico , Neoplasias da Mama/diagnóstico , Carcinoma Ductal de Mama/diagnóstico , Carcinoma Intraductal não Infiltrante/diagnóstico , Erros de Diagnóstico , Fibroadenoma/diagnóstico , Adenocarcinoma/patologia , Adulto , Idoso , Biópsia por Agulha Fina , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Carcinoma Intraductal não Infiltrante/patologia , Diagnóstico Diferencial , Feminino , Fibroadenoma/patologia , Humanos , Glândulas Mamárias Humanas/patologia , Pessoa de Meia-Idade , Estudos Retrospectivos
11.
Appl Immunohistochem Mol Morphol ; 22(9): 705-12, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21836499

RESUMO

Follicular dendritic cell sarcoma (FDCS) is a rare neoplasm of follicular dendritic cells, most commonly affecting the lymph nodes and extranodal soft tissues of the head and neck, but also potentially arising in any visceral organ. FDCS with its diverse morphologies raises an occasionally challenging differential of primary and metastatic tumors with overlapping histologic and immunohistochemical features. When involving the head and neck, FDCS may be confused with squamous cell carcinoma, undifferentiated carcinoma, extracranial meningioma, and variants of papillary thyroid carcinoma. We describe here a case of FDCS showing nuclear grooves, intranuclear pseudoinclusions, diffuse epithelial membrane antigen and focal cytokeratin staining, and the first documented report of positivity for thyroid transcription factor-1. A discussion of the differential diagnosis and potential diagnostic pitfalls in FDCS brought forth by thyroid transcription factor-1 immunoreactivity and a full review of clinicopathologic and immunohistochemical features of head and neck FDCS are presented.


Assuntos
Núcleo Celular , Sarcoma de Células Dendríticas Foliculares , Regulação Neoplásica da Expressão Gênica , Neoplasias de Cabeça e Pescoço , Proteínas de Neoplasias/biossíntese , Proteínas Nucleares/biossíntese , Fatores de Transcrição/biossíntese , Núcleo Celular/metabolismo , Núcleo Celular/patologia , Sarcoma de Células Dendríticas Foliculares/metabolismo , Sarcoma de Células Dendríticas Foliculares/patologia , Feminino , Neoplasias de Cabeça e Pescoço/metabolismo , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Fator Nuclear 1 de Tireoide
12.
Acta Cytol ; 57(4): 316-31, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23860443

RESUMO

OBJECTIVE: To review our experience and the literature on inconclusive/erroneous fine-needle aspirates (FNAs) of breast with the focus on the 'true gray zone'. To describe the cytology, differential diagnosis, pitfalls and limitations of common and rare lesions. STUDY DESIGN: We conducted a literature search focusing on breast FNAs with statistical data of C3 and C4 categories including false-positive and false-negative cases. Similar data from 2003 to 2009 was obtained from our institution. RESULTS: C3 and C4 categories account for 3-17% of breast FNAs. Contributing factors are technical difficulties, inexperienced pathologists interpreting FNAs of breast and overlap of cytologic features of certain benign and malignant conditions; this last, 'true gray zone' accounts for 2% of cases. Fibroadenoma, proliferative breast lesions, gynecomastia, infiltrating and in situ low-grade adenocarcinomas and tubular, cribriform, lobular and mucinous carcinomas are the most common problematic lesions. Granular cell tumor, adenomyoepithelioma, pregnancy-related lesions, fat necrosis, inflammatory and radiation changes, adenoid cystic carcinoma, spindle-cell lesions and Phyllodes tumor are less common. CONCLUSION: Inconclusive/erroneous FNAs of breast due to the 'true gray zone' are rare. Most are due to the overlapping cytologic features of some benign and malignant conditions. Practical features that may help arrive at the correct diagnoses are elucidated.


Assuntos
Biópsia por Agulha Fina , Neoplasias da Mama/diagnóstico , Doenças Mamárias/diagnóstico , Carcinoma in Situ , Carcinoma Ductal de Mama/diagnóstico , Diagnóstico Diferencial , Reações Falso-Negativas , Reações Falso-Positivas , Feminino , Humanos
14.
West Indian Med J ; 61(3): 299-301, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23155991

RESUMO

Fibrous dysplasia is a rare disorder of the bone. It is seen in two main forms of presentation: monostotic and the polyostotic. A case of monostotic fibrous dysplasia of the maxillary and palatine bones in a 22-year old man who received prosthetic reconstruction is presented with a review of the literature.


Assuntos
Displasia Fibrosa Monostótica/cirurgia , Maxila/cirurgia , Palato Duro/cirurgia , Procedimentos de Cirurgia Plástica , Próteses e Implantes , Adulto , Humanos , Masculino , Procedimentos de Cirurgia Plástica/métodos , Adulto Jovem
15.
West Indian med. j ; 61(3): 299-301, June 2012. ilus
Artigo em Inglês | LILACS | ID: lil-672904

RESUMO

Fibrous dysplasia is a rare disorder of the bone. It is seen in two main forms ofpresentation: monostotic and the polyostotic. A case of monostotic fibrous dysplasia of the maxillary and palatine bones in a 22-year old man who received prosthetic reconstruction is presented with a review of the literature.


La displasia fibrosa es un trastorno raro del hueso. Se le ve en dos formas principales: la monostótica y la poliostótica. Junto con la correspondiente revisión de la literatura, se presenta un caso de displasia fibrosa monostótica de los huesos maxilar y palatino en un hombre de 22 anos que recibió una reconstrucción prostética.


Assuntos
Adulto , Humanos , Masculino , Adulto Jovem , Displasia Fibrosa Monostótica/cirurgia , Maxila/cirurgia , Palato Duro/cirurgia , Próteses e Implantes , Procedimentos de Cirurgia Plástica , Procedimentos de Cirurgia Plástica/métodos
16.
Breast Cancer Res Treat ; 135(1): 29-37, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22484731

RESUMO

The introduction of selective molecular targeted therapy, specifically tamoxifen and trastuzumab, has significantly altered the clinical behavior of breast carcinoma. Several questions remain, however, regarding potential phenotypic drifts in estrogen receptor (ER), progesterone receptor (PR), and epidermal growth factor receptor (Her-2/neu) expression between the primary and metastatic site. Whether patients should be tested for ER, PR, and Her-2/neu expression in the nodal or distant metastatic site, local recurrence and following neoadjuvant therapy, and whether this has an effect on prognosis remains elusive. A review of 45 studies addressing ER, PR, and Her-2/neu expression in lymph node metastasis, distant metastasis, local recurrence, and post-neoadjuvant therapy revealed the following average phenotypic drift in ER, PR, and Her-2/neu expression, respectively: 13.1 % (median = 10.0 %), 13.8 % (median = 16.0 %), and 7.7 % (median = 5.0 %) for lymph node metastasis; 21.8 % (median = 19.5 %), 30.8 % (median = 33.5 %), and 7.6 % (median = 6.1 %) for distant metastasis; 19.8 % (median = 13.4 %), 27.1 % (median = 28.6 %), and 6.6 % (median = 1.6 %) for local recurrence; and 12.9 % (median = 8.0 %), 32.0 % (median = 20.0 %), and 8.9 % (median = 0 %) post-neoadjuvant therapy. The above findings support the notion of re-evaluating ER, PR, and Her-2/neu expression in distant metastasis, lymph node metastasis and to a lesser extent local recurrence. The effects of neoadjuvant therapy on receptor expression are more pronounced for PR, which may have a prognostic role in therapy efficacy.


Assuntos
Antineoplásicos/uso terapêutico , Neoplasias da Mama/metabolismo , Receptores ErbB/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Anticorpos Monoclonais Humanizados/uso terapêutico , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/tratamento farmacológico , Quimioterapia Adjuvante , Feminino , Humanos , Metástase Linfática , Terapia Neoadjuvante , Metástase Neoplásica , Recidiva Local de Neoplasia , Tamoxifeno/uso terapêutico , Trastuzumab
17.
Cancer ; 118(9): 2372-7, 2012 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-21918964

RESUMO

BACKGROUND: Columnar cell lesions are frequently associated with atypical ductal hyperplasia, lobular neoplasia, and tubular carcinoma, and have been suggested as a precursor lesion for low-grade carcinomas. However, in long-term follow-up studies, columnar cell lesions are associated with only a slight increase in later breast cancer development. If columnar cell lesions are precursor lesions, one would expect subsequent cancers to develop at the same site as the biopsy and to be preferentially of low grade. The goal of this article is to review the clinical and pathologic features of carcinomas that develop after a diagnosis of columnar cell lesion to try to establish whether these lesions are precursors to low-grade invasive carcinoma. METHODS: The authors reviewed biopsies containing columnar cell lesions, using the criteria of Schnitt and Vincent-Salomon, from 77 women in the Nashville Breast Cohort who developed subsequent breast carcinoma. Clinicopathologic features including laterality, type, and grade of the subsequent cancer were recorded. RESULTS: Breast cancer developed a median of 11 years after initial biopsy. The median age at diagnosis was 60 years. The majority of invasive carcinomas were of no special type and of intermediate grade. Moreover, the carcinomas were as likely to occur in the contralateral breast as in the breast that was originally diagnosed with columnar cell lesion, regardless of columnar cell lesion subtype (P = .48). CONCLUSIONS: Carcinoma subsequent to columnar cell lesions may occur in either breast and tends to show a similar grade and type distribution as sporadic breast cancer. These findings argue against columnar cell lesions being a true precursor for low-grade invasive carcinoma.


Assuntos
Doenças Mamárias/patologia , Neoplasias da Mama/patologia , Lesões Pré-Cancerosas/patologia , Biópsia , Neoplasias da Mama/diagnóstico , Feminino , Seguimentos , Humanos , Hiperplasia/patologia , Pessoa de Meia-Idade
18.
Breast J ; 18(1): 65-8, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22017630

RESUMO

Male breast cancer (MaleBC) is a rare tumor that has been insufficiently described in the Middle East. The purpose of this study is to report the first MaleBC series in Lebanon, describing its clinicopathologic and immunohistochemical phenotype, and how it compares with MaleBC in the West and with female breast cancer in Lebanon and the Middle East. Forty-seven cases of MaleBC were reviewed. Results showed younger ages at presentation (62 years versus 67 years), higher incidence of lobular carcinoma (6% versus 1%), and more frequent p53 positivity and axillary node metastases in our series than in those reported about MaleBC. Other results such as higher estrogen receptor (ER) positivity and lower HER-2/neu over-expression were comparable to the literature. These findings suggest that MaleBC in our region may represent a biologically different tumor with potentially distinct prognostic and therapeutic implications.


Assuntos
Adenocarcinoma , Neoplasias da Mama Masculina , Adenocarcinoma/metabolismo , Adenocarcinoma/patologia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Neoplasias da Mama Masculina/metabolismo , Neoplasias da Mama Masculina/patologia , Feminino , Fibrossarcoma/metabolismo , Fibrossarcoma/patologia , Humanos , Imuno-Histoquímica , Líbano , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Estudos Retrospectivos , Proteína Supressora de Tumor p53/metabolismo
19.
Int J Surg Pathol ; 20(2): 208-10, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21873411

RESUMO

Lipoblastic nerve sheath tumor is a recently described benign soft tissue tumor consisting of lipoblasts in a neural/schwannian background. The 6 reported cases have exclusively comprised signet ring lipoblasts and showed no cellular atypia. The authors describe the first lipoblastic nerve sheath tumor to harbor multivacuolated lipoblasts and degenerative atypia, underscoring its important differential diagnosis with well-differentiated liposarcoma. The purpose of this report is to expand the morphologic spectrum of this unusual neoplasm, and reemphasize the potential of benign nonadipocytic tumors to harbor multivacuolated lipoblasts and mimic liposarcoma.


Assuntos
Tecido Adiposo/patologia , Neoplasias de Bainha Neural/patologia , Neoplasias de Tecidos Moles/patologia , Biomarcadores Tumorais/metabolismo , Diagnóstico Diferencial , Humanos , Lipossarcoma/diagnóstico , Masculino , Pessoa de Meia-Idade , Neoplasias de Bainha Neural/metabolismo , Proteínas S100/metabolismo , Neoplasias de Tecidos Moles/metabolismo , Vacúolos/patologia
20.
Lasers Surg Med ; 42(1): 15-23, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20077490

RESUMO

BACKGROUND AND OBJECTIVE: Most women with early stage breast cancer have the option of breast conserving therapy, which involves a partial mastectomy for removal of the primary tumor, usually followed by radiotherapy. The presence of tumor at or near the margin is strongly correlated with the risk of local tumor recurrence, so there is a need for a non-invasive, real-time tool to evaluate margin status. This study examined the use of autofluorescence and diffuse reflectance spectroscopy and spectral imaging to evaluate margin status intraoperatively. MATERIALS AND METHODS: Spectral measurements were taken from the surface of the tissue mass immediately following removal during partial mastectomies and/or from tissues immediately after sectioning by surgical pathology. A total of 145 normal spectra were obtained from 28 patients, and 34 tumor spectra were obtained from 12 patients. RESULTS: After correlation with histopathology, a multivariate statistical algorithm classified the spectra as normal (negative margins) or tumor (positive margins) with 85% sensitivity and 96% specificity. A separate algorithm achieved 100% classification between neo-adjuvant chemotherapy-treated tissues and non-treated tissues. Fluorescence and reflectance-based spectral images were able to demarcate a calcified lesion on the surface of a resected specimen as well. CONCLUSION: Fluorescence and reflectance spectroscopy could be a valuable tool for examining the superficial margin status of excised breast tumor specimens, particularly in the form of spectral imaging to examine entire margins in a single acquisition.


Assuntos
Neoplasias da Mama/diagnóstico , Carcinoma Ductal de Mama/diagnóstico , Carcinoma Intraductal não Infiltrante/diagnóstico , Lasers de Gás , Mastectomia Segmentar , Espectrometria de Fluorescência/métodos , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/cirurgia , Carcinoma Intraductal não Infiltrante/cirurgia , Estudos de Viabilidade , Feminino , Humanos , Período Intraoperatório , Neoplasia Residual , Valor Preditivo dos Testes
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