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Philadelphia Chromosome Positive Chronic Myelogenous Leukemia Blastic Crisis in A Patient with Unusual Primary Myelofibrosis Characteristics; A Case Report. Cardiovasc Hematol Agents Med Chem 2023:CHAMC-EPUB-132515. [PMID: 37317905 DOI: 10.2174/1871525721666230614110621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 02/22/2023] [Accepted: 03/29/2023] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Myeloproliferative neoplasms (MPNs) are divided into BCR-ABL positive Chronic myeloid leukemia (CML) and BCR-ABL negative MPNs including Polycythemia vera (PV), Essential Thrombocythemia (ET) and Primary myelofibrosis (PMF). Evaluation of the Philadelphia chromosome in MPNs is a diagnostic requirement for classic CML. CASE REPORT In 2020, a 37-year-old woman with negative cytogenetic testing for Janus kinase2 (JAK2), Calreticulin (CALR), myeloproliferative leukemia virus oncogene (MPL), and positive for BCR-ABL1 mutation with reticular fibrosis in bone marrow was diagnosed as CML. Some years ago, the patient had been diagnosed with PMF with evidence of histiocytic necrotizing lymphadenitis or Kikuchi-Fujimoto disease (KFD). The BCR-ABL fusion gene was initially evaluated which was negative. Then, Cutaneous squamous cell carcinoma (cSCC) was confirmed by Dermatopathologist with palpable splenomegaly and high white blood cell (WBC) count with basophilia. Finally, BCR-ABL was detected positive by the fluorescence in situ hybridization (FISH) and quantitative real-time polymerase chain reaction (qRT-PCR). In fact, the co-occurrence of PMF with CML was identified. CONCLUSION This case study highlighted the importance of some cytogenetic methods in the detection and classification of MPNs. It is recommended that physicians pay more attention to it and be aware of the planning treatment.
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The mRNA Expression of PTEN, LEF1, JAK3, LC3 and p62/SQSTM1 Genes in Patients with Chronic Myeloid Leukemia. Cardiovasc Hematol Agents Med Chem 2022; 21:67-76. [PMID: 35993473 DOI: 10.2174/1871525720666220819123639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 06/03/2022] [Accepted: 06/15/2022] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Chronic myeloid leukemia (CML) is a progressive myeloproliferative disorder resulting from forming a chimeric BCR-ABL gene. The proteins derived from this gene can affect some genes from various signaling pathways such as PI3K/AKT/Wnt/catenin/JAK/Stat involved in proliferation, differentiation, cell death, and genes related to autophagy. Imatinib is the first-line treatment for CML patients, with durable and proper responses in Iranian children and adult CML patients. Hence, we aimed to evaluate the mRNA expression of some selected key genes from those pathways in patients with CML before and under treatment. METHODS In the case-control study, the mRNA expression of PTEN, LEF1, JAK3, LC3 and p62 genes were measured in 51 CML patients (6 patients before treatment and 45 patients under treatment with imatinib mesylate) and 40 healthy controls using the Real-time PCR method. RESULTS The mRNA expression of PTEN and P62 were significantly higher in newly diagnosed patients than in controls (P<0.0001 and P = 0.0183, respectively), while the expression of the LC3 gene was significantly lower in the untreated newly diagnosed group than in control subjects (P = 0.0191). The expression level of PTEN, LEF1, JAK3 and P62 genes were significantly decreased in patients under treatment than in the group before treatment (P = 0.0172, P = 0.0002, P = 0.0047 and P = 0.0038, respectively). A positive correlation was seen between the gene expression of P62 and BCR-ABL in the patients under treatment (r 0529, P = 0.016). CONCLUSION Our findings showed that the changes in expression of these genes were related to the patient's treatment. Due to the key role of these genes in proliferation, differentiation and tumor suppression, it is proposed that these genes may be helpful for follow-up of treatment in CML patients.
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Oncogenic and tumor suppressor genes expression in myeloproliferative neoplasms: The hidden side of a complex pathology. J Clin Lab Anal 2022; 36:e24289. [PMID: 35176183 PMCID: PMC8993601 DOI: 10.1002/jcla.24289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/22/2021] [Accepted: 12/21/2021] [Indexed: 11/30/2022] Open
Abstract
Background The present study aimed to explore the changes in the expressions of six tumor‐related genes in myeloproliferative neoplasms (MPNs). The study population included 130 patients with MPNs (52 with chronic myeloid leukemia (CML), 49 with essential thrombocythemia (ET), 20 with polycythemia vera (PV), and 9 with primary myelofibrosis (PMF)) and 51 healthy individuals. Methods The expression profiling of six genes (ADAMTS18, CMTM5, CDKN2B, DCC, FHIT, and WNT5B) in the peripheral blood granulocyte cells was explored by real‐time quantitative reverse transcription polymerase chain reaction. Results The patients with MPNs showed significant downregulation of CMTM5 (EFC = 0.66) and DCC (EFC = 0.65) genes in contrast to a non‐significant upregulation of ADAMTS18, CDKN2B, FHIT, and WNT5B genes. Downregulation of DCC was consistent in all subtypes of MPN (EFC range: 0.591–0.860). However, CMTM5 had a 1.22‐fold upregulation in PMF in contrast to downregulation in other MPN subtypes (EFC range: 0.599–0.775). The results revealed a significant downregulation in CMTM5 and DCC at below 60‐years of age. Furthermore, female patients showed a clear‐cut downregulation in both CMTM5 and DCC (EFC DCC: 0.436 and CMTM5: 0.570), while male patients presented a less prominent downregulation with a borderline p‐value only in DCC (EFC: 0.69; p = 0.05). Conclusions Chronic myeloid leukemia cases showed a significant upregulation of WNT5B, as a known oncogenesis gene. Two tumor suppressor genes, namely DCC and CMTM5, were downregulated in the patients with MPNs, especially in females and patients below 60 years of age.
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TET2, DNMT3A, IDH1, and JAK2 Mutation in Myeloproliferative Neoplasms in southern Iran. Int J Organ Transplant Med 2021; 12:12-20. [PMID: 35509721 PMCID: PMC9013495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Five epigenetic regulator mutations are considered in myeloproliferative neoplasms (MPN) that have prognostic and therapeutic values. OBJECTIVE We aimed to evaluate these mutations in MPNs among the Iranian population. METHODS We selected 5 mutations in 4 epigenetic regulatory genes [TET2, DNMT3A, IDH1 (rs147001633&rs121913499), and JAK2)] and evaluated 130 patients with MPNs including 78 Philadelphia chromosome negative (49 ETs, 20 PVs, and 9 PMFs) and 52 Philadelphia chromosome-positive patients as well as 51 healthy controls. RESULTS Eight patients (6.5%) carried the DNMT3A mutation, 35 (27%) were positive for TET2 mutation and 64 (49.3%) had the JAK2V617F mutation. In the healthy controls, 16 (31.4%) cases had the TET2 mutation (15 Heterozygote + 1 Homozygote) and one had heterozygote JAK2 mutation. There was no statistically significant difference between patient groups for any of these mutations, except for JAK2. The JAK2 mutation rate was 18 (90%), 25 (51%), 7 (77.8%), 14 (26.9%) in polycythemia vera, essential thrombocythemia, primary myelofibrosis, and chronic myelocytic leukemia, respectively. Patients aged 60 and older were more likely to carry the TET2 mutation (23% vs. 39% in younger and older than 60 years old individuals, p=0.025). IDH1 was not detected at all and PV had the highest TET2 mutation 7(35%). Two PMF patients had a history of bone marrow transplantation that were negative for IDH1and DNMT3A and one was positive for TET2 mutation. CONCLUSION In the normal Iranian population, the heterozygote form of TET2 mutation is significant, especially in the elderly. No association was found between JAK2 and TET2 mutations. Both of them are more prevalent in the age group of 60 years and older. DNMT3A mutation has a low prevalence and occurs in both positive and negative MPNs.
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Aggregation behaviors of sonicated tapioca starch with various strengths of Hofmeister salts under pre- and post-ultrasonic treatment. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105826] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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A Novel One-pot Protocol for the Cu-Catalyzed Synthesis of Nine 2-Aminobenzimidazole Derivatives from o-Phenylenediamine and Trichloroacetonitrile. LETT ORG CHEM 2019. [DOI: 10.2174/1570178615666180914114010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The synthesis of a variety of 2-aminobenzimidazoles via a one pot reaction of ophenylenediamine
and trichloroacetonitrile catalyzed by copper (II) acetate in THF at room temperature,
with good yields is described. Use of simple and readily available starting materials, good to high
yields, free ligand, and no column chromatography are important features of this protocol.
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A Direct Access to N-Arylation of Guanidines by Ligand-Free, Copper Catalysis at Room Temperature. LETT ORG CHEM 2018. [DOI: 10.2174/1570178615666171222162430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Prevalence of Human Papilloma Virus in Sinonasal Papilloma in Southern Iranian Population. JOURNAL OF DENTISTRY (SHIRAZ, IRAN) 2017; 18:143-148. [PMID: 28620639 PMCID: PMC5463771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
STATEMENT OF THE PROBLEM Sinonasal papilloma (SNP) is a rare benign lesion characterized by high recurrence rate and malignant transformation. PURPOSE This study aimed to investigate the prevalence of human papilloma virus (HPV) infection in these lesions in South of Iran. MATERIALS AND METHOD In this cross sectional retrospective study, a total of 41 patients, 38 SNP and 3 SNP/Squamous cell carcinoma cases, from 2007 to 2014 were studied. Human papilloma virus (HPV) DNA detection was performed by nested PCR method and positive cases were analyzed for high risk HPV-16 and HPV-18. RESULTS HPV was detected in 31.7%; HPV- 16 in 4.9% and HPV 18 was not detected at all. Dysplastic epithelium was detected in 53% that was not associated with HPV. Three cases were accompanied with malignant transformation that HPV genome was detected in only one case and none of them were positive for HPV16 /18 genomic DNA. CONCLUSION Current research suggests that HPV may be involved in the development of SNP. But the high risk HPV is not important in malignant transformation. More studies are needed to elucidate the possible etiologic mechanism between HPV, inverted papilloma, and squamous cell carcinoma.
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The Prevalence of Human Papilloma Virus in Squamous Cell Carcinoma of Oral Tongue. IRANIAN JOURNAL OF PATHOLOGY 2017. [DOI: 10.30699/ijp.2017.24872] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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New synthesis of 1-( N-sulfonylimino)alkanephosphonates via reaction of N-sulfonylketenimides with dimethyl or diphenyl phosphite. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2016.1248764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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The Prevalence of Human Papilloma Virus in Squamous Cell Carcinoma of Oral Tongue. IRANIAN JOURNAL OF PATHOLOGY 2017. [PMID: 29515636 PMCID: PMC5831070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Oral tongue Squamous Cell carcinoma (SCC) commonly involves males between the sixth to eighth decades of life. Major risk factors are tobacco usage and alcohol consumption. The increasing number of patients developing oral tongue cancer without these well-known risk factors suggests that a viral infection, such as Human Papillomavirus (HPV), may be responsible for this increase, by acting as an oncogenic agent. This study investigated the prevalence of HPV infection and its clinicopathologic significance in oral tongue SCCs. METHODS Tissue blocks from a total of 50 cases (patients with oral tongue SCC) and 50 controls (palatine tonsillar tissues with benign diagnosis) were selected. DNA was extracted from tumoral and non-tumoral tissue blocks. Detection of common HPV DNA by nested Polymerase Chain Reaction (PCR), and high-risk genotypes, HPV 16 and HPV 18, by conventional PCR, was achieved and the results correlated with clinicopathological parameters. RESULTS Of the 50 patients (18 males and 32 females with a mean age of 57.36±12.18 years, and age range of 27 to 86 years), 7 (14%) had HPV positive results. None of the control group subjects had HPV DNA positive results (P-value of 0.012). The HPV genotype 16/18 was not detected in positive cases. No statistically significant association was found between HPV status and gender, age, tumor grade, tumor stage or lymph node involvement. CONCLUSION Although there was a significantly higher prevalence of HPV in oral tongue SCC, its association with carcinogenesis in this area requires further studies.
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Quantification of Active and Latent Form of Human Cytomegalovirus Infection in Umbilical Cord Blood Donors by Real-Time PCR. Int J Organ Transplant Med 2017; 8:140-145. [PMID: 28924462 PMCID: PMC5592101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Umbilical cord blood (UCB) is believed to be a highly valuable source of hematopoietic stem cells for transplantation. Objective: To investigate the prevalence of active and latent human cytomegalovirus (CMV) infection in UCB donors in Iranian population. METHODS A total of 825 UCB samples was collected under standard procedures and analyzed for the presence of CMV DNAs in buffy coat (latent infection) and plasma (active infection). DNA was extracted from buffy coat and plasma samples separately and tested with quantitative real-time PCR. All positive samples were checked by ELISA for IgG and IgM anti-CMV antibody. RESULTS Latent CMV infection was detected in 17 (2%) buffy coat samples with a low level of viral load, which indicated the presence of latent viral infection in donors. None of the plasma samples were found positive for CMV DNA reflecting no active infection. In the 17 positive samples, CMV viral load was 91-104 (mean: 100) copies/mL. All samples positive for viral DNA were also found positive for CMV IgG antibody by ELISA. No CMV IgM antibody was detected in positive samples. CONCLUSION CMV is still the most important virus that infects hematopoietic stem cells and could be dangerous, especially for immunocompromized transplant recipients. We therefore suggest using real-time PCR for the detection and quantification of the viral DNA in buffy coat and plasma of UCB donors. PCR of plasma for detection of CMV and antibody assay for CMV infection add no more sensitivity for the detection of latent CMV infection in UCB donors.
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Abstract
Purpose: To determine the prevalence of various types of conjunctival lesions, at a tertiary ophthalmic center in Fars Province, South of Iran. Methods: Histopathologic slides and medical records of conjunctival lesions submitted to the pathology department of Khalili Hospital, Shiraz, Iran were reviewed from April, 2009 to July, 2013. The histopathologic diagnoses were categorized into benign, pre-malignant, and malignant lesions. The prevalence of various types of conjunctival lesions was calculated. Results: Histologic sections of 631 conjunctival lesions were reviewed. Benign lesions were most prevalent (81.8%), followed by premalignant (10.8%) and malignant (7.4%) lesions. Pterygia were the most common benign lesions (69.2%), intraepithelial dysplasia constituted most cases of premalignant lesions (94.1%), and squamous cell carcinoma was the most frequent malignant lesion (93.6%). Benign lesions were the most common type of lesions in all age groups, however the prevalence of malignant lesions increased significantly with age (P < 0.001). Conclusion: Benign lesions were the most common conjunctival lesions with pterygia on top of the list, while intraepithelial neoplasia and squamous cell carcinoma were the most common premalignant and malignant lesions, respectively. Conjunctival malignant lesions were more prevalent with older age.
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Quantitative polymerase chain reaction for detection of human herpesvirus-7 infection in umbilical cord blood donors. Transpl Infect Dis 2014; 17:21-4. [PMID: 25440722 DOI: 10.1111/tid.12319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/18/2014] [Accepted: 09/16/2014] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Umbilical cord blood (UCB) has been a reasonable alternative to granulocyte colony-stimulating factor-mobilized peripheral blood or bone marrow, as a source of hematopoietic stem cells with a lower risk of graft-versus-host disease. In immunocompromised hosts after transplantation, the risk of viral infection in adults, especially with beta-herpesviruses such as human herpesvirus-7 (HHV-7), may be increased. This virus in immunocompromised patients can be reactivated from latency and converted to an active phase. Therefore, light-upon-extension real-time polymerase chain reaction (PCR) was developed to assess the prevalence and load of HHV-7 in the plasma and buffy coat of donors. METHODS About 825 UCB samples under standard protocol from donors were collected. Then, DNA from plasma and buffy coat was extracted and quantitative real-time PCR was performed with light-upon-extension primers. RESULTS Overall, HHV-7 was detected in 3.64% (30/825) of UCB donors. HHV-7 DNA was detected in 26 (3.2%) buffy coat samples (latent infection), and only 4 (0.48%) of them were positive for HHV-7 DNA in plasma samples (active infection); the mean HHV-7 viral load was 1.31 × 10(1) copies/mL in latent infection, and 1.94 × 10(5) copies/mL in active infection. CONCLUSIONS We suggest that real-time PCR in plasma and buffy coat could be a useful method to detect active and latent HHV-7 infection in UCB donors and determine its role in subsequent transmission events.
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The small round blue cell tumors of the sinonasal area: histological and immunohistochemical findings. IRANIAN RED CRESCENT MEDICAL JOURNAL 2013; 15:455-61. [PMID: 24349741 PMCID: PMC3840830 DOI: 10.5812/ircmj.4735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Accepted: 04/26/2013] [Indexed: 11/25/2022]
Abstract
Background Primary Small round blue cell tumors (SRBCT) in sinonasal comprise histogenetically diverse entities with overlapping morphologic features. Because of the limited initial biopsy tissue materials, differential diagnostic difficulties may arise, and as they have different management, exact diagnosis and classification are very important. Objectives In this study, we analyzed the immunohistochemical expression of a panel of markers in the classification and diagnosis of sinonasal SRBCTs. Material and Methods This cross sectional study was performed on 36 paraffin embedded tissue samples. Histologic and immunohistochemical slides from 36 patients with SRBCT were analyzed retrospectively. The patients were admitted in Khalili hospital, Shiraz from 1383 to 1388. Results There were 13 women and 23 men with the mean age of 53 ±12.1. There were 9 malignant melanoma, seven poorly differentiated SCC; six lymphoma (DLBL); 4 SCNEC; three SNUC; two ON; two Ewing/PNET; two embryonal rhabdomyosarcoma, and one plasmacytoma. Pan-cytokeratin was strongly expressed poorly differentiated SCC and all cases of SNUC. Coexpression of desmin and nuclear myoD1 was only detected in rhabdomyosarcoma. HMB45 was only expressed in sinonasal melanoma. CD99 expression was identified only in Ewing/PNET. FLI-1 was detected in 50% of PNET. P63 was expressed in poorly differentiated SCC (2/7) and SNUC (1/3). Conclusions The results of our study indicate that the integration of histopathologic findings with application of limited but highly specific markers led to the separation of carcinomas, lymphoma and melanomas from other small cell tumors. Using a panel of keratin, LCA, desmin, and HMB45 is the most practical and economic approach to accurately classify these tumors.
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Extramedullary plasmacytoma of the nasal cavity report of three cases with review of the literature. IRANIAN RED CRESCENT MEDICAL JOURNAL 2013; 15:363-6. [PMID: 24083014 PMCID: PMC3785915 DOI: 10.5812/ircmj.2209] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 01/04/2012] [Accepted: 01/11/2012] [Indexed: 11/16/2022]
Abstract
Extramedullary plasmacytoma is a rare neoplasm characterized by monoclonal proliferation of plasma cells. Most lesions occur in the head and neck, primarily in the upper aerodigestive tract. The nasal cavity and nasal septum are the most common sites of occurrence. In this report, three patients admitted in our clinic with history of nasal obstruction and/or epistaxis. Patients were diagnosed with extramedullary plasmacytoma and mass were completely excised. This entity usually occurred in 5th-6th decade of life. One of our patients, a young man, was completely asymptomatic and following a paroxysm of coughing, a polypoid mass was expectorated. The clinical and histopathologic findings of plasmacytoma are discussed. In order to exclude systemic involvement, systematic approach using clinical, laboratory, and radiologic investigations was performed. Extramedullary plasmacytoma of the nasal cavity is rare and should be considered in the differential diagnosis of nasal cavity masses especially in young age group.
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Comparison between presence of epstein barr virus in nodal and extra nodal diffuse large B cell lymphoma of head and neck, an Iranian experience. IRANIAN RED CRESCENT MEDICAL JOURNAL 2012; 14:764-70. [PMID: 23482890 PMCID: PMC3587864 DOI: 10.5812/ircmj.1302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 08/26/2011] [Accepted: 08/27/2011] [Indexed: 12/13/2022]
Abstract
Background Epstein Barr Virus (EBV) is one of the most common viral infections in human population. EBV has a significant role in pathogenesis of Hodgkin's lymphoma, Burkitt's lymphoma and nasopharyngeal carcinoma. The role of EBV in non-Hodgkin’s lymphoma, diffuse large B cell (NHL - DLBL) in the head and neck is controversial. Objectives The purpose of this study is to find out the difference between the presence of Epstein Barr virus in nodal and extra nodal lymphoma of head and neck. Patients and Methods A total of 30 cases of DLBL in two separate groups were collected from pathology department. The first group was consisted of 15 patients with DLBL of neck lymph node and the other was consisted of 15 patients with extra nodal DLBL of head and neck mainly in palatine tonsil. Both immune-histo-chemical (IHC) study and polymerase chain reaction (PCR) for detection of late membrane antigen (LMP) were performed on formalin fixed paraffin embedded tissue. Results All 30 cases were negative for EBV in IHC method. But in PCR method, 10% of patients were positive for LMP gene. There were 2 positive cases in nodal lymphoma and 1 positive case in extra nodal lymphoma group. Conclusions Compare with PCR method, it seems that IHC is not a sensitive method for detection of EBV. Overall, the finding of EBV in NHL depends on site, type of lymphoma and the detection method.
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Study the polymorphism of CYP3A5 and CYP3A4 loci in Iranian population with laryngeal squamous cell carcinoma. Mol Biol Rep 2011; 38:5443-8. [PMID: 21380731 DOI: 10.1007/s11033-011-0699-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Accepted: 02/26/2011] [Indexed: 11/29/2022]
Abstract
Cancer reflects a complicated network of interactions between genes and environmental factors. Cytochrome P450 (CYP) is a multi-gene superfamily participating in the metabolism of xenobiotics. The aim of our study was to examine whether polymorphisms in the CYP enzyme genes affect the risk of developing larynx squamous cell carcinoma (SCC). Polymorphism of CYP3A5 and CYP3A4 genes were investigated in 50 patients with laryngeal SCC and 100 control subjects by polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP). In patients the CYP3A5 3/3 and 1/3genotypes were detected in 92% and 8% respectively. There was no relation between genotype, allele frequency and grade/stage of tumor. In control group, the frequency of CYP3A5 3/3 and CYP3A5 1/3 genotype were 98% and 2% respectively. There was no significant difference in genotype and allele frequency of this gene between patient and control group. In respect of CYP3A41A/B, people in both patient and control groups had the same genotype of CYP3A41A/1A. In this study, the CYP gene variants were not associated with increased risk of laryngeal SCC. Study on the other genetic factors which are involved in activation/detoxication of procarcinogenes, such as CYP1A1, CYP1B1, CYP2E1 and gluthation S transferase is recommended.
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Fine needle aspiration cytology of palatine tonsils: a study of 112 consecutive adult tonsillectomies. Cytopathology 2009; 21:170-5. [DOI: 10.1111/j.1365-2303.2009.00646.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Paralysis of the recurrent laryngeal nerve by an extracapsular thyroid adenoma. EAR, NOSE & THROAT JOURNAL 1989; 68:855-6, 858-60, 863. [PMID: 2612393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
We treated a patient with an ectopic thyroid adenoma that caused recurrent laryngeal nerve paralysis and upper aerodigestive tract compression. After excision of the mass and release of the compressed recurrent nerve, the true vocal cord function returned almost to normal. We review the literature, diagnosis, and management of thyroid disease associated with vocal cord paralysis.
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Chronic otitis media: surgical failures and management. THE AMERICAN JOURNAL OF OTOLOGY 1989; 10:460-5. [PMID: 2610233 DOI: 10.1097/00129492-198911000-00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Failure of primary tympanomastoid surgery to control chronic otitis is a difficult otologic problem. The facial nerve, middle fossa dura, and inner ear structures are at high risk because of distorted anatomy from the primary surgery and/or recurrent disease. In this article our techniques and experience with 42 revision procedures for recurrent chronic otitis with and without cholesteatoma are presented. Control of otorrhea and/or cholesteatoma was achieved in 93% of the cases; however, this might be less after 5 years of follow-up. The mean postoperative air-bone gap was 25 dB, and this is a 6 dB improvement from the preoperative level. Revision tympanomastoid surgery was very effective and safe in the management of this difficult problem. For cholesteatoma in particular, the canal wall down technique is our procedure of choice.
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Report angioedema secondary to hypertension medications. VIRGINIA MEDICAL 1989; 116:147. [PMID: 2543153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Extrapulmonary oat-cell carcinoma of the tonsil. EAR, NOSE & THROAT JOURNAL 1987; 66:112-5. [PMID: 3030689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Abstract
The coexistence of otosclerosis and Meniere's disease is well documented; however, otosclerosis may not be recognized in patients presenting mainly with Meniere's symptoms and, therefore, treatment may not be effective. In this paper, eight patients with otosclerosis and Meniere's disease are presented. The diagnosis of coexisting otosclerosis and Meniere's was initially missed in most of these patients. Medical and surgical treatment had been unsuccessful. Diagnostic and therapeutic guidelines for management of these patients are discussed. Our preliminary conclusions are: 1. otosclerosis should be diagnosed in patients with Meniere's disease, especially when bilateral or when suggested by clinical and/or laboratory findings, and 2. the addition of sodium fluoride to diet-diuretic management of such patients appears effective.
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Neurilemmoma of the nasoethmoid region. EAR, NOSE & THROAT JOURNAL 1985; 64:495-8. [PMID: 4064979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Bilateral peritonsillar abscesses and quinsy tonsillectomy. J Natl Med Assoc 1985; 77:807-12. [PMID: 3863964 PMCID: PMC2571185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Two patients presented with history, symptoms, and clinical findings suggesting unilateral peritonsillar abscesses. At the time of quinsy tonsillectomy, the patients were found to have pus present in the contralateral peritonsillar spaces. These findings prompted a review of the literature to determine the actual frequency of bilateral peritonsillar abscesses and to reassess the approach to treatment of patients presenting with peritonsillar abscesses.Peritonsillar abscess frequently develops following the onset of acute tonsillitis, and it is possible that this process occurs bilaterally with the developmental stages of the abscesses being different on each side. Intensive antibiotic treatment, incision and drainage of the obvious abscess probably suppresses the development of and masks the presence of the abscess on the opposite side.Quinsy tonsillectomy has been indicated previously for patients not responding to intravenous antibiotic treatment and incision and drainage of their peritonsillar abscess. The possibility of a subclinical contralateral peritonsillar abscess being present is an additional indication for proceeding with a quinsy tonsillectomy, especially in patients who remain febrile after apparent satisfactory drainage of the clinically evident abscess.
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Otologic symptoms and findings of the pseudotumor cerebri syndrome: a preliminary report. Otolaryngol Head Neck Surg 1985; 93:398-402. [PMID: 3927238 DOI: 10.1177/019459988509300321] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Pseudotumor cerebri or benign intracranial hypertension is a syndrome characterized by increased intracranial pressure without focal signs of neurologic dysfunction. The clinical manifestations of this syndrome are usually headache and/or disturbance of vision. Although tinnitus, hearing loss, and vertigo have been described in association with intracranial hypertension, otologic symptomatology as the presenting manifestation of this syndrome has not been previously reported. In this article we report the otologic symptoms and findings of two pseudotumor cerebri patients, one of whom presented with pulsatile tinnitus. The pathogenesis of the otologic symptoms, diagnostic workup, and management of these patients are discussed.
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Brain-stem evoked response waveform variation associated with recurrent otitis media. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1985; 111:315-6. [PMID: 3985852 DOI: 10.1001/archotol.1985.00800070067009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Two cases suggest that long-standing recurrent otitis media contributes to delayed brain-stem evoked response wave III and V latencies persisting after resolution of the otitis media. The persistence of the delayed waves may not reflect structural damage, but rather may still reflect a slowly recovering system.
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Basal cell carcinoma. EAR, NOSE & THROAT JOURNAL 1984; 63:526-7. [PMID: 6489213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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32
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Abstract
Mucormycosis is an acute fungal disease with high mortality exhibiting craniofacial, pulmonary, cutaneous, gastrointestinal and disseminated forms. Cerebro-rhino-orbital (CRO) mucormycosis is the type that most frequently involves the structures of the head and neck. While usually non-pathogenic, these saprophytic organisms can be particularly lethal in chronically debilitated patients. Between the years 1957 and 1982, 18 cases of CRO mucormycosis were seen at the Medical College of Virginia Hospital and the McGuire VA Medical Center. Four illustrative cases of CRO mucormycosis are presented to emphasize: the importance of clinical awareness of the disease, the necessity of tissue biopsy for diagnosis, the need of appropriate management of any underlying disorder, administration of amphotericin-B, and the performance of adequate surgery.
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Abstract
Epidermoid cysts occur whenever two epidermal surfaces fuse together during early intrauterine life and an ectodermal implant is retained deep to the surface. They are very slow growing and symptoms may not occur till middle age. The authors present a patient whose symptoms of frontal headache were mistaken for frontal sinusitis for over 10 years. The patient's symptoms were completely relieved by surgical excision of an epidermoid cyst of the frontal bone.
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Conjoint hyoid bone segments for the repair of severe laryngeal stenosis. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1983; 109:482-4. [PMID: 6860226 DOI: 10.1001/archotol.1983.00800210058015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We discuss and show by illustrations a surgical technique for the management of severe combined laryngeal and subglottic stenosis using multiple pieces of hyoid bone. No serious problems resulted from the removal of the entire hyoid bone. All patients have maintained a good airway, despite the possibility of absorption of a free bone graft. Although it is reasonable to try to use the hyoid bone with a strap muscle pedicle, it is impossible to reconstruct the subglottic and laryngeal area without multiple pieces. Our experience encourages us to use multiple pieces of free hyoid bone for laryngotracheal reconstruction.
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Abstract
In early 1983 the authors presented an innovative procedure for the management of severe laryngeal stenosis. Because of the severity of the stenosis and the large surgical defect created by excision of the stenosis, multiple pieces of the hyoid bone were sewn together conjointly to bridge the surgical defect. The authors are now able to report follow-up in 6 patients ranging from 11 to 60 months and discuss their favorable experience with this procedure.
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Human tympanic membrane homograft. South Med J 1982; 75:805-6. [PMID: 7089647 DOI: 10.1097/00007611-198207000-00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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