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2022| April-June | Volume 39 | Issue 2
Online since
June 1, 2022
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ORIGINAL ARTICLES
Association of micronuclear frequency with dysplasia and cytogenetic changes (p53 mutation and p16 expression) in oral potentially malignant disorders
Suvidha Tammewar, Rasika Gadkari
April-June 2022, 39(2):53-58
DOI
:10.4103/joc.joc_198_21
Aims:
The present study evaluated the frequency of micronuclei in oral potentially malignant disorders (OPMDs) and their association with the presence of dysplasia on cytology and biopsy as well as their association with p53 mutation and p16 expression. Cytological findings of dysplastic changes in OPMDs were compared to histological diagnoses.
Material and Methods:
This was a cross-sectional, observational, descriptive study. Scrape smears (n = 74) were collected from lesions in patients with OPMDs. Punch biopsy was collected in patients showing dysplastic changes. Tissue microarray for p53 mutation and p16 expression was performed using paraffin embedded blocks. Cases were classified into grades of dysplasia using both scrape smears and biopsy. Micronuclei frequency was calculated per 100 cells using scrape smears. Mann–Whitney U test was used for correlation of cytology and histology for grade of dysplasia as well as micronuclear frequency with p53 mutation and p16 expression.
Results:
Micronuclear frequency was found to be increased in patients with dysplasia. A significant association of micronuclear frequency with dysplastic changes was seen on cytology. Sensitivity of cytological evaluation was found to be 64.7%. The association of the micronuclear frequency of samples with p53 mutation and p16 expression was nearly significant (n = 28,
P
= 0.069 and 0.095, respectively).
Conclusion:
Micronuclear frequency can be a reliable marker of mutagenic change in OPMDs. Cytological assessment of micronuclei can serve as useful, non-invasive, and relatively inexpensive tool to predict cancerous changes in OPMDs.
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Preliminary cytomorphologic diagnosis of hematolymphoid malignancies in effusions: A cyto-histo correlation with lessons on restraint
Bidish K Patel, Debasis Gochhait, Sreerekha Jinkala, Vidhyalakshmi Rangarajan, Narasimhapriyan Kannan, S Durgadevi, Neelaiah Siddaraju
April-June 2022, 39(2):59-65
DOI
:10.4103/joc.joc_204_21
Background:
Effusions as part of hematologic neoplasms are rare and as a primary presentation, rarer. In standalone laboratories of developing countries, resorting to techniques such as flow cytometry or immunohisto/cytochemistry may not be possible. A near definitive diagnosis on cytomorphology would, therefore, be an ideal beginning. To that end, we compiled our cases of primary hematolymphoid effusions, devising reproducible reporting categories and looked at their concordance with the final histopathology.
Subjects and Methods:
Fifty-four cases of primary hematolymphoid effusions over 10 years with cytology-histopathology correlation were chosen. Post morphology assessment, the cases were organized into six categories: suspicious of hematolymphoid malignancy, non-Hodgkin lymphoma-high-grade (NHL-HG), low-grade NHL (NHL-LG), Burkitt lymphoma, acute leukemias, and plasma cell dyscrasias. Discordance with histology was assigned as major and minor based mainly on therapeutic implications.
Results:
Concordance was seen in a good number (81.5%) of cases. The NHL-HG and NHL-LG categories contributed to 33.3% each of major discordance. Tuberculosis and epithelial malignancies comprised the bulk of the major discordance. Overdiagnosis of a high-grade lymphoma for a histologically proven low-grade follicular lymphoma was the only case with minor discordance.
Conclusion:
The cytologic categories used are not foolproof for hematologic neoplasms but have a fairly good concordance. A scanty abnormal population should always be viewed with suspicion and definitive labels should be avoided. While morphologic examination is fraught with danger, a good assessment directs the judicious selection of ancillary methods, and hence cannot be supplanted.
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Impact of LBC fixative type and fixation time on molecular analysis of pancreatic cancer cells: A comparative study of cell morphology, antigenicity and nucleic acids
Junya Izuhara, Kazuki Kanayama
April-June 2022, 39(2):66-71
DOI
:10.4103/joc.joc_13_22
Introduction:
Liquid-based cytology (LBC) has been widely used since 2000. Next-Generation Sequencing (NGS) analysis of residual specimens in LBC fixative may also be performed for pancreatic cancer in the near future. We examined cell morphology, antigenicity and nucleic acids in pancreatic cancer cells at different fixation times using two types of LBC fixatives.
Methods:
PANC-1 cells were fixed in 1 ml CytoRich Red (CR), CytoRich Blue (CB), 95% ethanol (95% AL) or 10% neutral buffered formalin (10% NBF) and evaluated for cell area, antigenicity and nucleic acids with fixation times of 1 hour and 1, 3, 9, and 14 days. Antigenicity was evaluated by immunocytochemical staining for p53 and CK20, and nucleic acid fragmentation was assessed by real-time PCR.
Results:
There was no difference in total cell area between 1 hour and 14 day fixation times for the CR group, but the CB group showed cell contraction with 9 days fixation. In immunocytochemical staining, the CR group showed high p53 and CK20 positivity even after 14 days fixation. The CB group had a lower p53 positive rate than the CR group from 1 hour fixation. For nucleic acid fragmentation, Ct values for the CR group increased with fixation time. The CB group had consistently low Ct values.
Conclusion:
Different LBC fixatives and fixation time can have varying effects on cell morphology, antigenicity and nucleic acids in pancreatic cancer cells. Therefore, fixative type and fixation time should be considered for molecular testing on residual samples in LBC fixatives.
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Application of the Indian academy of cytologists recommendations for reporting serous fluid cytopathology in routine reporting of ascitic fluid specimen and assessment of the risk of malignancy
Shilpy Jha, Madhusmita Sethy, Amit Kumar Adhya
April-June 2022, 39(2):72-77
DOI
:10.4103/joc.joc_88_21
Background:
A five-tiered reporting system for effusion fluid cytology has been published by the Indian Academy of Cytologists (IAC). Only a single study has evaluated the applicability of this system in routine reporting.
Aims:
We intend to evaluate the practical utility of this system in routine reporting of ascitic fluid cytology.
Materials And Methods:
Nine hundred and sixty-one cases of ascitic fluid cytology were included in this study. The clinical, radiological, cytomorphological, and follow-up data of these cases were reviewed. All cases were recategorized according to the proposed IAC system, and the risk of malignancy (ROM) for each category was estimated.
Results:
Age of the patients ranged from 1 to 92 years, and fluid volume ranged from 10 ml to 3 l. The number of cases included in each category and their respective ROM were as follows: category 1: 41, 21.42%; category 2: 805, 14.9%; category 3: 5, 33.3%; category 4: 31, 90%; and category 5:79, 96.4%.
Conclusions:
The new IAC guidelines for the serous fluid is representative, informative, and could be easily applied at our institutional level. We used the recommended diagnostic categories for reclassifying the ascitic fluid samples based on their cytosmear findings and conclude that the system has enormous utility at each level starting from the collection of fluid samples till the delivery of the report.
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LETTERS TO EDITOR
Strength and weaknesses of application of international academy of cytology yokohama system for reporting breast fine-needle aspiration cytopathology
Isha Makker, Preeti Agarwal, Shivanjali Raghuvanshi, Madhu Kumar, Mala Sagar
April-June 2022, 39(2):89-90
DOI
:10.4103/joc.joc_12_22
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Xanthogranulomatous cholecystitis with coexisting carcinoma- A diagnostic pitfall in cytology
Anupama Arya, Shaily Goyal, Dilip Kumar, Poonam Das
April-June 2022, 39(2):86-88
DOI
:10.4103/joc.joc_124_21
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IMAGES IN CYTOPATHOLOGY
Cytological diagnosis of chondromyxoid fibroma
Purushotham Reddy, SM Choukimath, AA Hosangadi, PV Nishath
April-June 2022, 39(2):78-80
DOI
:10.4103/joc.joc_132_21
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Schwannoma of submandibular gland: A rare salivary gland neoplasm diagnosed by fine needle aspiration
Tugba Taskin Turkmenoglu, Sehbal Arslankoz
April-June 2022, 39(2):84-85
DOI
:10.4103/joc.joc_191_21
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Exfoliation of uterine leiomyosarcoma in cervical scrape smear with histopathological correlation
Priyanka Uttam, Ashish K Gupta, Nighat Hussain, Nidhi Rai
April-June 2022, 39(2):81-83
DOI
:10.4103/joc.joc_165_21
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© <%=year(date())%> Journal of Cytology |
Indian Academy of Cytologists
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Online since 15
th
April, 2008