Displaying publications 41 - 60 of 129 in total

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  1. Jayaram G, Chew MT
    Acta Cytol., 2000 Nov-Dec;44(6):960-6.
    PMID: 11127753
    OBJECTIVE: To assess the role of fine needle aspiration cytology (FNAC) in lymphadenopathy in human immunodeficiency virus-infected individuals (HIVII).

    STUDY DESIGN: Thirty-nine HIVII presenting with lymphadenopathy at University Hospital, Kuala Lumpur, were subjected to FNAC. Cytologic smears were routinely stained with May-Grünwald-Giemsa stain. Special stains and immunostains were used when necessary.

    RESULTS: In nine cases, the cytologic appearance was compatible with HIV type A and in one case with HIV type C lymphadenopathy. In 21 cases, acid-fast bacilli (AFB) were demonstrated in the cytologic smears, enabling a diagnosis of mycobacterial lymphadenitis. In one of these cases there was a concomitant infection with Penicillium marneffei that was overlooked on initial cytologic examination. The cause of granulomatous lymphadenitis could not be ascertained in one case, where neither AFB nor any other organisms were demonstrable. Two cases of histoplasma and one of cryptococcal lymphadenitis were diagnosed, as was one high grade non-Hodgkin's lymphoma that could be immunophenotyped on cytologic material. In three cases the aspirates were inadequate for a cytologic diagnosis.

    CONCLUSION: Lymph node FNAC is a valuable investigative modality in HIVII. Most opportunistic infections (bacterial and fungal) can be correctly identified, and high grade lymphoma can be diagnosed and phenotyped.
    Matched MeSH terms: Lymph Nodes/pathology
  2. Wan Muhaizan Wan Mustaffa, Sharifah Noor Akmal Syed Husain
    Medicine & Health, 2006;1(1):75-80.
    MyJurnal
    Fine needle aspiration cytology under radiologic guidance for diagnosis of renal cell carcinoma is well established and is increasingly utilized. This is because renal cell carcinoma displays fairly characteristic cellular features permitting correct cytologic identification. We present a case of a 66-year-old man who had advanced renal cell carcinoma with spread to aortic and cervical lymph nodes, lungs and liver. Fine needle aspiration cytology of the para-aortic mass showed tight clusters of malignant cells with abundant and vacuolated cytoplasm consistent with renal cell carcinoma. Histology of the left cervical lymph nodes together with immunohistochemistry findings were consistent with the cytologic diagnosis of metastatic renal cell carcinoma. The patient succumb to his illness three years after the diagnosis was made.
    Matched MeSH terms: Lymph Nodes
  3. Jayaram G, Peh KB
    Diagn Cytopathol, 1995 Nov;13(4):295-9.
    PMID: 8599911
    Three patients presenting with parotid, submandibular, and/or lymph node masses were subjected to fine-needle aspiration cytology. Smears showed dissociated and clustered endothelial cells, eosinophils, lymphocytes, and Warthin Finkeldey giant cells. In two cases a diagnosis of Kimura's disease was suggested from the FNA cytologic smears. In the third case the presence of mononucleate cells with prominent nucleoli led to a suspicion of Hodgkin's disease. Excision biopsy and histopathologic study established a diagnosis of Kimura's disease in all three cases.
    Matched MeSH terms: Lymph Nodes/pathology
  4. Azmi, M.N., Zailani, M.A., Norashikin, M.N., Asma Assaedah, Norra, H., Kalavathy, R., et al.
    MyJurnal
    PURPOSE: This review was performed to determine the association between demographic characteristics and the histopathological findings of colorectal cancer (CRC) patients operated in Hospital Tengku Ampuan Afzan (HTAA) Kuantan Pahang Malaysia. METHODS: We retrospectively reviewed the histopathological reports of 119 CRC cases operated in HTAA from January 2001 to December 2005 which met the inclusion criteria of histologically proven adenocarcinoma. The following demographic characteristics which include age, gender, and ethnicity were assessed. The histopathological related variables which include the site of primary tumor, Astler and Coller stage, tumor differentiation and lymph node metastasis were analyzed. Chi square test was used for categorical variables. Data with low expected counts were assessed using Fisher’s exact tests. RESULTS: There were 59 males and 60 females with age ranging from 23 to 93 years. 81.5% of the patients were older than 50 years (p=0.038). Malays accounted for 58.8% of the total cases, followed by Chinese (36.1%) and Indian (5%). Rectosigmoid region and rectum were the most common sites for primary tumor (55.6%). Cancer in male predominantly occurred in the rectum (p=0.023). Malays were commonly diagnosed with stage C2 (54.3%) while Chinese were diagnosed with stage B2 (58.1%) (p=0.011). Fifty percent of the patients who are less than 50 years old were diagnosed with stage C2 (p=0.024). There was significant change from well to moderately differentiated adenocarcinoma (p=0.000). Sixty percent of female patients diagnosed to have cancer with lymph node metastasis (p=0.044). Significant lymph node metastasis was also observed among Malay patients (p=0.022). CONCLUSION: The findings from the present review suggest that there are several associations between demographic distribution and histopathological characteristics of CRC. More than fifty per cent of CRC are found in the rectosigmoid region and the rectum. CRC are more common in Malay race and rectal cancer is predominantly affecting the male. About forty five percent of patients harbor metastases in the lymph nodes and fifty percent of the younger age group were presenting with nodal metastases.
    Matched MeSH terms: Lymph Nodes
  5. Pailoor J, Iyengar KR, Chan KS, Sumithra S
    Malays J Pathol, 2008 Dec;30(2):115-9.
    PMID: 19291921
    Follicular dendritic cell sarcomas (FDCS) are rare neoplasms that involve lymph nodes or extranodal sites. They show varied histological features and thus can be mistaken for carcinoma or sarcoma. Correct identification is important for further management. A 43-year-old Indian female presented with a three-month history of progressive swelling at the right inguinal region. It was excised completely and was reported as lymph node with metastatic poorly differentiated carcinoma based on Haematoxylin and eosin (H&E) stain findings. Computerized tomography (CT) scans of thorax, abdomen and pelvis were normal and did not reveal a primary site. Following this, the case was referred to one of the authors. The slides were reviewed and a variety of immunocytochemical markers were done. The tumour cells were negative for epithelial, melanocytic, neural, leucocyte and soft tissue tumour markers. They were immunopositive for CD21, CD35 and negative for CD68. Based on the immunocytochemical findings, a final diagnosis of FDCS was made. This case highlights the histological and immunophenotypical profile of a rare tumour which requires a high index of suspicion for diagnosis.
    Matched MeSH terms: Lymph Nodes/pathology*
  6. Zanaruddin SN, Saleh A, Yang YH, Hamid S, Mustafa WM, Khairul Bariah AA, et al.
    Hum Pathol, 2013 Mar;44(3):417-26.
    PMID: 23026198 DOI: 10.1016/j.humpath.2012.06.007
    The presence of lymph node (LN) metastasis significantly affects the survival of patients with oral squamous cell carcinoma (OSCC). Successful detection and removal of positive LNs are crucial in the treatment of this disease. Current evaluation methods still have their limitations in detecting the presence of tumor cells in the LNs, where up to a third of clinically diagnosed metastasis-negative (N0) patients actually have metastasis-positive LNs in the neck. We developed a molecular signature in the primary tumor that could predict LN metastasis in OSCC. A total of 211 cores from 55 individuals were included in the study. Eleven proteins were evaluated using immunohistochemical analysis in a tissue microarray. Of the 11 biomarkers evaluated using receiver operating curve analysis, epidermal growth factor receptor (EGFR), v-erb-b2 erythroblastic leukemia viral oncogene homolog 2 (HER-2/neu), laminin, gamma 2 (LAMC2), and ras homolog family member C (RHOC) were found to be significantly associated with the presence of LN metastasis. Unsupervised hierarchical clustering-demonstrated expression patterns of these 4 proteins could be used to differentiate specimens that have positive LN metastasis from those that are negative for LN metastasis. Collectively, EGFR, HER-2/neu, LAMC2, and RHOC have a specificity of 87.5% and a sensitivity of 70%, with a prognostic accuracy of 83.4% for LN metastasis. We also demonstrated that the LN signature could independently predict disease-specific survival (P = .036). The 4-protein LN signature validated in an independent set of samples strongly suggests that it could reliably distinguish patients with LN metastasis from those who were metastasis-free and therefore could be a prognostic tool for the management of patients with OSCC.
    Matched MeSH terms: Lymph Nodes/metabolism; Lymph Nodes/pathology*
  7. Peh SC, Kim LH, Poppema S
    Pathology, 2002 Oct;34(5):446-50.
    PMID: 12408344
    AIMS: Epstein-Barr virus (EBV) is associated with many human malignancies. It is implicated in a pathogenetic role in some of these tumours. Two subtypes, type A and B have been identified on the basis of DNA sequence divergence in the nuclear protein genes (EBNA) 2, 3, 4 and 6. They differ in their transforming efficiency and prevalence pattern in different geographical locations. We aimed to identify the virus subtype infection pattern in our EBV-associated diseases.

    METHODS: Paraffin-embedded tissue from 38 lymphomas (17 Hodgkin's, 14 Burkitt's, four T cell and 3 B cell non-Hodgkin's lymphomas) and 14 nasopharyngeal carcinomas (NPC) were studied, with 12 reactive lymph nodes and tonsils as normal control. EBER in situ hybridisation was performed to confirm EBV association in the tumour cells. A nested polymerase chain reaction (PCR) protocol was employed using two pairs of consensus primers which flanked a 105-bp deletion in the type A virus. U2 region encoding for EBNA-2 was chosen as the target of amplification, with cell lines B95.8 and AG876 serving as positive controls for types A and B virus, respectively.

    RESULTS: All cases showed presence of type A virus, consistently detected with nested PCR protocol but not with single step PCR. There was no type B virus or mix infections detected.

    CONCLUSIONS: Nested PCR technique has successfully increased the sensitivity of EBV subtype detection, and type A virus is the prevalent strain associated with human diseases in Malaysia.

    Matched MeSH terms: Lymph Nodes/pathology; Lymph Nodes/virology
  8. Nadiah Abu, Nurul-Syakima Ab Mutalib, Rahman Jamal
    MyJurnal
    The invasion of cancer cells into the peritumoral, lymph node and perineural system could be detrimental
    on cancer patients. In colorectal cancer (CRC) patients, the presence of lymphovascular (LVI) and/or
    perineural (PNI) invasion could significantly influence on the survival rates, treatment options and
    recurrence tendencies. To date, no study has analyzed the molecular profile of the concomitant existence of
    LVI and PNI in CRC. Here, we reanalyzed The Cancer Genome Atlas (TCGA) CRC datasets and focused
    on cases where the information regarding LVI and PNI are available (n=176). We performed differential
    gene expression, methylation and microRNA analysis by comparing the groups having both or either LVI
    and PNI with the control group (LVI negative and PNI negative). Although there was no significant
    difference in the methylation and miRNA profiles, we identified a number of differentially expressed genes
    (DEGs). The comparison between the LVI+PNI+ and LVI-PNI- groups revealed key DEGs including
    SFTA2, PHACTR3, CRABP2, ODZ3, GRP, HAP1, CSDC2, TMEM59L and HDAC9. Meanwhile, in the
    LVI-PNI+ vs LVI-PNI- group, some of the DEGs found were PTPRR, EFNA2, FGF20, IGFL4, METRN
    and IGFBPL1. We believe that this study could be beneficial and add value to further understand the
    complex molecular profiles of CRC.
    Matched MeSH terms: Lymph Nodes
  9. Ngeow YF, Wong YL, Tan JL, Arumugam R, Wong GJ, Ong CS, et al.
    J Bacteriol, 2012 Aug;194(15):4125.
    PMID: 22815444 DOI: 10.1128/JB.00712-12
    Mycobacterium massiliense is a rapidly growing mycobacterial species. The pathogenicity of this subspecies is not well known. We report here the annotated genome sequence of M. massiliense strain M18, which was isolated from a lymph node biopsy specimen from a Malaysian patient suspected of having tuberculous cervical lymphadenitis.
    Matched MeSH terms: Lymph Nodes/microbiology
  10. Halim AS, Ramasenderan N
    Asian J Surg, 2023 Jan;46(1):47-51.
    PMID: 35545474 DOI: 10.1016/j.asjsur.2022.04.079
    Cutaneous squamous cell carcinoma (CSCC) is a common type of skin malignancy that affects people who have been exposed to sunlight for a long time. It has been associated to a high mutational load, making treatment problematic, especially for individuals with high-risk CSCC characteristics. Patients with high-risk CSCC are difficult to define since definitions are still imprecise. Firstly, we review the evidence to see how relevant locoregional involvement is in terms of patient survival and recurrence risk. Second, we go through the difficulties and obstacles that come with sentinel lymph node biopsy (SLNB) and their importance in the management of locally progressed CSCC. Methods and findings from a variety of lymph node investigations are described. There is yet no empirical evidence for the involvement of SLNB in CSCC. Finally, we discussed the most recent developments in the treatment of CSCC. The mainstays of treatment are surgery and radiation. To slow the disease progression, cancer medicines have switched to disrupting particular signaling pathways. Advanced nations have more easily accessible drugs like Cetuximab (epidermal growth factor receptor inhibitor) and Cemiplimab (anti-programme receptor-1 antibodies), which are utilized in advanced CSCC. The response rate varies based on the patient, although there is still a lack of proof. This article discusses the misconception that CSCC is a tumor with a favorable prognosis, as well as the difficulties in treating high-risk CSCC.
    Matched MeSH terms: Lymph Nodes/pathology
  11. Jayalakshmi P, Malik AK, Soo-Hoo HS
    Malays J Pathol, 1994 Jun;16(1):43-7.
    PMID: 16329575
    Fifty-nine cases of tuberculous cervical lymphadenitis were analysed histologically. Characteristic epithelioid cell granulomas were seen in all the cases with central areas of caseation necrosis in 96.6% (57/59) of these cases. The diagnosis of tuberculosis was further established by the demonstration of acid-fast bacilli (AFB) in the tissue sections in 29 cases. These AFB, although occasional, were found more frequently within the epithelioid cells as compared with other zones of the granuloma. There was no significant association between necrosis and bacillary content. We conclude that light microscopical assessment is still a useful screening method to diagnose tuberculosis in cases of cervical lymphadenopathy.
    Matched MeSH terms: Lymph Nodes/microbiology; Lymph Nodes/pathology*
  12. Shekhar KC, Pathmanathan R, Krishnan R
    J Helminthol, 1996 Sep;70(3):249-52.
    PMID: 8960220
    Human dirofilariasis is a rare infection in Malaysia. Thus far, only two human cases have been reported viz. Dirofilaria immitis and D. (Nochtiella) repens and in both instances, adult worms were recovered from infected patients. The two cases reported in the present study, one from Melaka and the other from Penang, were diagnosed histologically. Based on the diagnostic criteria for identifying Dirofilaria in tissue sections, the parasites were identified as D. (Nochtiella) repens.
    Matched MeSH terms: Lymph Nodes/parasitology; Lymph Nodes/pathology*
  13. Menon BS, Shuaib IL, Zamari M, Haq JA, Aiyar S, Noh LM
    Ann Trop Paediatr, 1998 Mar;18(1):45-8.
    PMID: 9692001
    We describe a Malay girl with disseminated cryptococcosis affecting the lungs, liver, lymph nodes and bones. The diagnosis was made by culture of the bone marrow. Tests of immune function showed that she was HIV-negative but the CD4 percentage was persistently low. Idiopathic CD4+ T-lymphocytopenia was diagnosed. The child died despite two courses of anti-fungal therapy.
    Matched MeSH terms: Lymph Nodes/microbiology
  14. Loh KY, Yushak AW
    N Engl J Med, 2007 Jul 19;357(3):282.
    PMID: 17634463 DOI: 10.1056/NEJMicm063871
    Matched MeSH terms: Lymph Nodes/pathology*
  15. Laya BF, Concepcion NDP, Andronikou S, Abdul Manaf Z, Atienza MIM, Sodhi KS
    Pediatr Radiol, 2023 Aug;53(9):1782-1798.
    PMID: 37074457 DOI: 10.1007/s00247-023-05650-5
    Despite advances in diagnosis and treatment in recent years, tuberculosis (TB) remains a global health concern. Children are amongst the most vulnerable groups affected by this disease. Although TB primarily involves the lungs and mediastinal lymph nodes, it can affect virtually any organ system of the body. Along with clinical history combined with physical examination and laboratory tests, various medical imaging tools help establish the diagnosis. Medical imaging tests are also helpful for follow-up during therapy, to assess complications and exclude other underlying pathologies. This article aims to discuss the utility, strengths and limitations of medical imaging tools in the evaluation of suspected extrathoracic TB in the pediatric population. Imaging recommendations for the diagnosis will be presented along with practical and evidence-based imaging algorithms to serve as a guide for both radiologists and clinicians.
    Matched MeSH terms: Lymph Nodes
  16. Chia YC, McCarthy S
    JUMMEC, 1998;3:60-61.
    This section only examines the clinical findings and some blood chemistly in these workers. A total of 222 men and 28 women were studied. Their ages ranged from 12 to 57 years, the mean being 30.1 (±7.4). Generally most of the physical examination was normal and no external features of infectious diseases were seen. The mean systolic and diastolic blood pressure was 120 (±13) and 76(±8.7) nun Hg respectively. About 8.4% of the population had elevated blood pressure of 140/90 mmHg or greater. About 12.4% of these man and women were underweight (Body mass index (EMI) less than 19 kg/m2) while 11.2% were either overweight or obese (BMI>25) with the mean being 21.8 (±2.7). Only 3 had BMI greater than 30. Three subjects had a lnitral regurgitation murmur thought to be due to mitral valve prolapse. Four others had tinea cruris, six had insignificant axillary lymph-nodes, five had cervical lymph-nodes of which one was due to carcinoma of the tonsil 30 with shotty inguinal lymph-nodes which was thought to of no pathological significance. Four subjects had crepitations and five had rhonchi in their lungs. A full blood count revealed that 16.65% of the man and 32.1°/o of the women had haemoglobin levels of less than 14gm/dl and 12gm/dl respectively. The most striking abnormality was the high prevalence of eosinophilia. 37% of the subjects had eosinophilia counts of greater than 450/dl. About 19.4% of this study population had fasting blood glucose of greater than 6mmol/l but only 1.3% with fasting blood glucose of greater than 7.8 mmo/l. About 22% of the urine examined revealed pro- teinuria but were otherwise unremarkable for the other parameters. This group of foreign workers was made up of a presumably fairly healthy young population. Attempts to look for infectious disease on physical examination, not surprisingly did not reveal any remarkable findings. It could be that the majority of these subjects already had a examination prior to coming into the country and another one soon after arrival. However an indirect measurement of infectious diseases via the eosinophilic count revealed a high prevalence of parasitic infestations. Attempts to examine the end results of social hardship, be it intrinsic before or appearing after arrival indirectly shoved some degree of suffering. There was a fairly high prevalence of anaemia, especially amongst the women. The body mass index also revealed this population to be generally less obese than other populations. The value of medical check-ups has been debated, especially if it were done as a pre-employment procedure. This pilot study has shown that it is not cost-effective to do physical examination or blood chem- istry and urine analysis in hying to identify infectious diseases in the migrant workers. In the light of the paucity of clinical findings in this pilot study, it would be prudent to review the strategy for examining the health status of migrant workers. Perhaps the physical examination can be dispensed with, and blood andurine analysis beveryfocused and directedin order to maximise the cost- effectiveness of this programme. Certainly the high prevalence of eosinophilia needs further evalua- tion.
    Matched MeSH terms: Lymph Nodes
  17. Raja-Sabudin RZ, Hamid AA, Yusof N, Alauddin H, Aziz SA, Kulaveerasingam S, et al.
    Saudi Med J, 2012 Oct;33(10):1131-3.
    PMID: 23047221
    Matched MeSH terms: Lymph Nodes/immunology; Lymph Nodes/pathology*
  18. Mohd AW, Mohamad I, Wan Ghazali WS, Johan KB
    Malays Fam Physician, 2017;12(2):32-33.
    PMID: 29423129 MyJurnal
    A previously healthy 80-year-old woman presented with a history of a thorn prick injury over the
    distal phalange of her left finger obtained while gardening two months ago. She claimed to have a
    non-healing cut with a nodular lesion, which progressively increased in size, extending upwards
    towards the region of her left arm. There was no fever or palpable lymph nodes in the axillary region.
    She had been prescribed antibiotics from the local hospital but her condition did not improve.
    Matched MeSH terms: Lymph Nodes
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