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Marcos R, Almeida J, Marques J, Moreira R, Dias-Pereira P, Correia-Gomes C, Santos M. Canine mast cell tumors: utility of stereologic tools in cytology. J Vet Diagn Invest 2021; 34:263-267. [PMID: 34763591 DOI: 10.1177/10406387211058825] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Quantitative morphologic parameters assessed in cytologic samples of canine cutaneous mast cell tumors (ccMCTs) may assist with surgical planning and prognostication. Robust cutoffs can be defined, with high reproducibility, for parameters such as the nuclear area (NA). The NA may be determined by morphometry (image analysis, NAI) or by stereology, such as the 2D-nucleator method (NAN); stereologic techniques have not been applied to cytologic specimens of ccMCT, to our knowledge. We retrospectively selected routine cytology smears from 51 ccMCT cases and screened them to determine the percentage of neoplastic mast cells with indistinct nuclear borders; this was repeated after the slides were restained with H&E. The NAI and the NAN were estimated in 100 mast cells per animal in H&E-stained slides. All nuclei were visible in H&E smears, and unbiased quantification was feasible. The NAN was similar to NAI, but less time-consuming. Both the NAN and NAI determined by cytology differed in histologic low- and high-grade ccMCTs, and in histologic grade I plus II versus grade III ccMCTs. Stereologic parameters such as the NAN could be considered as complementary techniques for the cytologic evaluation of ccMCTs.
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Affiliation(s)
- Ricardo Marcos
- Cytology Diagnostic Services, Institute of Biomedical Sciences Abel Salazar (ICBAS-UP), University of Porto, Porto, Portugal
| | - João Almeida
- Cytology Diagnostic Services, Institute of Biomedical Sciences Abel Salazar (ICBAS-UP), University of Porto, Porto, Portugal
| | - Joana Marques
- Cytology Diagnostic Services, Institute of Biomedical Sciences Abel Salazar (ICBAS-UP), University of Porto, Porto, Portugal
| | - Raquel Moreira
- Veterinary Clinic, Institute of Biomedical Sciences Abel Salazar (ICBAS-UP), University of Porto, Porto, Portugal
| | - Patrícia Dias-Pereira
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar (ICBAS-UP), University of Porto, Porto, Portugal
| | | | - Marta Santos
- Cytology Diagnostic Services, Institute of Biomedical Sciences Abel Salazar (ICBAS-UP), University of Porto, Porto, Portugal
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2
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Casanova M, Branco S, Veiga IB, Barros A, Faísca P. Stereology in Grading and Prognosis of Canine Cutaneous Mast Cell Tumors. Vet Pathol 2021; 58:483-490. [PMID: 33576305 PMCID: PMC8064533 DOI: 10.1177/0300985820985138] [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] [Indexed: 11/25/2022]
Abstract
Canine cutaneous mast cell tumors (ccMCTs) are currently graded according to Patnaik and Kiupel grading schemes. The qualitative and semiquantitative parameters applied in these schemes may lead to inter- and intraobserver variability. This study investigates the prognostic value of volume-weighted mean nuclear volume (vv¯), a stereological estimation that provides information about nuclear size and its variability. vv¯ of 55 ccMCTs was estimated using the “point-sampled intercept” method and compared with histological grade and clinical outcome. The clinical history of dogs treated with surgical excision alone was available for 30 ccMCTs. Statistical differences in vv¯ were found between grade II (x¯ = 115 ± 29 µm3) and grade III ccMCTs (x ¯= 197 ± 63 µm3), as well as between low-grade (x ¯= 113 ± 28 µm3) and high-grade ccMCTs (x¯ = 184 ± 63 µm3). An optimal cutoff value of vv¯ ≥ 150 µm3 and vv¯ ≥ 140 µm3 was determined for grade III and high-grade ccMCTs, respectively. In terms of prognosis, vv¯ was not able to predict the clinical outcome in 42% of the cases; however, cases with vv¯ <125 µm3 had a favorable outcome. These results indicate that, despite having limited prognostic value when used as a solitary parameter, vv¯ is highly reproducible and is associated with histological grade as well as with benign behavior.
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Affiliation(s)
- Mafalda Casanova
- 70904Instituto Gulbenkian de Ciência, Oeiras, Portugal.,70989Universidade de Évora, Évora, Portugal
| | | | | | - André Barros
- 70904Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - Pedro Faísca
- 70904Instituto Gulbenkian de Ciência, Oeiras, Portugal.,FMV-ULHT, Lisbon, Portugal.,DNATech, Lisbon, Portugal
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3
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Daniel J, Barra CN, Pulz LH, Kleeb SR, Xavier JG, Catão-Dias JL, Nishiya AT, Fukumasu H, Strefezzi RF. Intratumoral collagen index predicts mortality and survival in canine cutaneous mast cell tumours. Vet Dermatol 2019; 30:162-e48. [PMID: 30693578 DOI: 10.1111/vde.12726] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND Mast cell tumours (MCTs) constitute almost 25% of cutaneous neoplasms in dogs. Their biological behaviour is predicted using histopathological grading which is based on several subjective criteria that are vulnerable to intra- and interobserver variability. To improve the prediction of the biological behaviour, several complementary markers have been studied. The integrity of the extracellular matrix (ECM) may play a protective role against tumoral progression, and favour cellular proliferation, angiogenesis, invasion and metastases when altered. HYPOTHESIS/OBJECTIVES To evaluate the quantification of collagen and elastic fibres as prognostic markers for MCTs. ANIMALS Thirty-eight random cases of canine cutaneous MCT surgically treated with wide margins were included. METHODS AND MATERIALS Intratumoral collagen and elastic fibres were identified and quantified on histological sections stained with Masson's trichrome, Picrosirius red and Verhoeff; the results were compared with histopathological grades, mortality due to the disease and postsurgical survival. RESULTS Morphometric analysis revealed a significant relationship between histopathological grade and intratumoral collagen index (CoI). In addition, the CoI was considered an independent indicator for mortality and postsurgical survival. CONCLUSIONS AND CLINICAL IMPORTANCE These results support the importance of the CoI in the grading and prognosis of MCTs, suggesting that preservation and/or synthesis of collagen have the potential to become targets for MCT therapeutics.
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Affiliation(s)
- Jessika Daniel
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 255, CEP 13635-900, Pirassununga, Brazil
| | - Camila N Barra
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 81, CEP 05508-270, São Paulo, Brazil
| | - Lidia H Pulz
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 81, CEP 05508-270, São Paulo, Brazil
| | - Silvia Regina Kleeb
- Universidade Metodista de São Paulo, Av. Dom Jaime de Barros Câmara, 1000, CEP 09895-400, São Bernardo do Campo, Brazil
| | | | - José Luiz Catão-Dias
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 81, CEP 05508-270, São Paulo, Brazil
| | - Adriana T Nishiya
- Universidade Anhembi-Morumbi, R. Dr. Almeida Lima 1134, CEP 03164-000, São Paulo, Brazil
| | - Heidge Fukumasu
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 255, CEP 13635-900, Pirassununga, Brazil
| | - Ricardo F Strefezzi
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 255, CEP 13635-900, Pirassununga, Brazil
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4
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Di Donato G, Laufer-Amorim R, Palmieri C. Nuclear morphometry in histological specimens of canine prostate cancer: Correlation with histological subtypes, Gleason score, methods of collection and survival time. Res Vet Sci 2017; 114:212-217. [PMID: 28502900 DOI: 10.1016/j.rvsc.2017.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 04/26/2017] [Accepted: 05/01/2017] [Indexed: 10/19/2022]
Abstract
Ten normal prostates, 22 benign prostatic hyperplasia (BPH) and 29 prostate cancer (PC) were morphometrically analyzed with regard to mean nuclear area (MNA), mean nuclear perimeter (MNP), mean nuclear diameter (MND), coefficient of variation of the nuclear area (NACV), mean nuclear diameter maximum (MDx), mean nuclear diameter minimum (MDm), mean nuclear form ellipse (MNFe) and form factor (FF). The relationship between nuclear morphometric parameters and histological type, Gleason score, methods of sample collection, presence of metastases and survival time of canine PC were also investigated. Overall, nuclei from neoplastic cells were larger, with greater variation in nuclear size and shape compared to normal and hyperplastic cells. Significant differences were found between more (small acinar/ductal) and less (cribriform, solid) differentiated PCs with regard to FF (p<0.05). MNA, MNP, MND, MDx, and MDm were significantly correlated with the Gleason score of PC (p<0.05). MNA, MNP, MDx and MNFe may also have important prognostic implications in canine prostatic cancer since negatively correlated with the survival time. Biopsy specimens contained nuclei that were smaller and more irregular in comparison to those in prostatectomy and necropsy specimens and therefore factors associated with tissue sampling and processing may influence the overall morphometric evaluation. The results indicate that nuclear morphometric analysis in combination with Gleason score can help in canine prostate cancer grading, thus contributing to the establishment of a more precise prognosis and patient's management.
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Affiliation(s)
- Guido Di Donato
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Renée Laufer-Amorim
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science - Univ. Estadual Paulista - UNESP, Botucatu, SP, Brazil
| | - Chiara Palmieri
- School of Veterinary Science, The University of Queensland, Gatton campus, Queensland, Australia.
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5
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Gil da Costa RM. C-kit as a prognostic and therapeutic marker in canine cutaneous mast cell tumours: From laboratory to clinic. Vet J 2015; 205:5-10. [PMID: 26021891 DOI: 10.1016/j.tvjl.2015.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 04/29/2015] [Accepted: 05/02/2015] [Indexed: 12/28/2022]
Abstract
Cutaneous mast cell tumours (MCTs) are some of the most common canine neoplasms and their variable and often aggressive biological behaviour makes them particularly challenging for the veterinary practitioner. Over the years, scientists have accumulated a wealth of knowledge on these tumours and developed better prognostic markers and targeted therapies, mostly focused on inhibiting c-kit, a protein that plays a major role in the biopathology of MCTs. Masitinib and toceranib, targeted inhibitors of c-kit and other receptor tyrosine-kinases (RTKs), offer the promise of improving the outcome of patients with aggressive MCTs. Much of the available knowledge on MCTs is dispersed, making it difficult for practitioners to benefit when consulting a pathologist or making therapeutic decisions. This article seeks to bring together current knowledge on the biopathology of MCTs, reviewing prognostic markers and their applications, and the development of c-kit inhibitors in the context of the basic cellular, molecular and pathological features of MCTs. Future perspectives following recent biopathological data and experimental therapeutic approaches are also addressed.
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Affiliation(s)
- Rui M Gil da Costa
- Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia (LEPABE), Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, Porto, Portugal.
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6
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Affiliation(s)
- Beverly A Kidney
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada.
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7
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Barbosa DDF, Paraventi MD, Strefezzi RDF. Reproducibility of nuclear morphometry parameters from cytologic smears of canine cutaneous mast cell tumors-intra- and interobserver variability. Vet Clin Pathol 2014; 43:469-72. [DOI: 10.1111/vcp.12167] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniella de F.L. Barbosa
- Department of Veterinary Medicine; Faculty of Animal Science and Food Engineering; University of São Paulo; Pirassununga Brazil
| | - Mariana D. Paraventi
- Department of Veterinary Medicine; Faculty of Animal Science and Food Engineering; University of São Paulo; Pirassununga Brazil
| | - Ricardo de F. Strefezzi
- Department of Veterinary Medicine; Faculty of Animal Science and Food Engineering; University of São Paulo; Pirassununga Brazil
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8
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Vascellari M, Giantin M, Capello K, Carminato A, Morello EM, Vercelli A, Granato A, Buracco P, Dacasto M, Mutinelli F. Expression of Ki67, BCL-2, and COX-2 in canine cutaneous mast cell tumors: association with grading and prognosis. Vet Pathol 2012; 50:110-21. [PMID: 22673539 DOI: 10.1177/0300985812447829] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The expression of Ki67, BCL-2, and COX-2 was investigated in 53 canine cutaneous mast cell tumors (MCTs) by immunohistochemistry and quantitative real time polymerase chain reaction (qPCR) to evaluate their prognostic significance and the association with the histologic grading and the mitotic index (MI). MCTs were graded according to the Patnaik grading system and the novel 2-tier grading system proposed by Kiupel. The numbers of mitotic figures/10 high-power fields (MI) were counted. Both grading systems were significantly associated with prognosis. The Patnaik grading was of limited prognostic value for grade 2 MCTs, with 23% being associated with mortality. The concordance among pathologists was strongly improved by the application of the 2-tier grading system, and 71% of high-grade MCTs were associated with a high mortality rate. MI and Ki67 protein expression were significantly associated with grading and survival. No significant association between BCL-2 protein expression and either grading system or health status was observed. BCL-2 mRNA expression was significantly higher in grade 2 than in grade 1 MCTs, while no statistically significant differences were detected between low- and high-grade MCTs. The increased BCL-2 mRNA level was significantly associated with increased mortality rate. The COX-2 protein expression was detected in 78% of the MCTs investigated. However, neither association with the tumor grade nor with the health status was observed. COX-2 mRNA was significantly up-regulated in MCTs compared to surgical margins and control skin tissue, but it was neither associated with tumor grade nor with survival.
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Affiliation(s)
- M Vascellari
- Istituto Zooprofilattico Sperimentale delle Venezie, Italy.
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9
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Meachem MD, Burgess HJ, Davies JL, Kidney BA. Utility of nuclear morphometry in the cytologic evaluation of canine cutaneous soft tissue sarcomas. J Vet Diagn Invest 2012; 24:525-30. [DOI: 10.1177/1040638712440988] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cytopathologists lack reliable criteria to distinguish neoplastic from reactive spindle cells; however, with computer-based nuclear morphometry, it is now possible to more objectively and precisely quantify differences between selected populations of cells. Forty-four cutaneous soft tissue sarcomas and 5 cases of reactive spindle cell proliferations in the dog were morphometrically analyzed with regard to median and standard deviation (SD) of nuclear area, diameter (max, min, mean), radius (max, min), perimeter, and roundness. Overall, nuclei from reactive spindle cells were larger, with greater variation in nuclear size and shape. Significant differences ( P < 0.05) were found for several nuclear parameters, including the median and SD of maximum diameter and radius, as well as the SD of roundness. No significant differences were found in nuclear parameters between soft tissue sarcomas divided by histologic grade, mitotic index, or tumor necrosis score. Analysis of the sources of variation indicated near-perfect intraobserver and substantial interobserver agreement. The largest source of variation was due to selection of different measurement fields, reflecting the inherent biological variation in nuclear size within the tumor cell population. The results indicate that nuclear morphometry on cytologic preparations is a reproducible method that may be able to differentiate cutaneous soft tissue sarcomas from reactive mesenchymal lesions in the dog. Further studies, including a larger number of cases, are warranted to assess repeatability of results.
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Affiliation(s)
- Melissa D. Meachem
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Hilary J. Burgess
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Jennifer L. Davies
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Beverly A. Kidney
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
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10
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Thompson JJ, Pearl DL, Yager JA, Best SJ, Coomber BL, Foster RA. Canine Subcutaneous Mast Cell Tumor. Vet Pathol 2010; 48:156-68. [DOI: 10.1177/0300985810387446] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- J. J. Thompson
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Canada
| | - D. L. Pearl
- opulation Medicine, Ontario Veterinary College, University of Guelph, Guelph, Canada
| | - J. A. Yager
- YagerBest Histological and Cytological Services, Guelph, Canada
| | - S. J. Best
- YagerBest Histological and Cytological Services, Guelph, Canada
| | - B. L. Coomber
- Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Canada
| | - R. A. Foster
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Canada
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11
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Strefezzi RDF, Kleeb SR, Xavier JG, Dias JLC. Avaliação da proliferação celular como indicador prognóstico para mastocitomas cutâneos caninos. PESQUISA VETERINARIA BRASILEIRA 2010. [DOI: 10.1590/s0100-736x2010000700009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Este estudo teve como objetivo avaliar o valor prognóstico de marcadores de proliferação celular em casos de mastocitomas cutâneos caninos. Vinte e três casos foram analisados quanto à expressão imuno-histoquímica de Ki67 e do Antígeno Nuclear de Proliferação Celular (PCNA), sendo subsequentemente acompanhados clinicamente. Observou-se que a expressão de Ki67 mantém relação negativa com a tradicional graduação histopatológica (p= 0,0418; p<0,05 entre os graus I e III), sendo um indicador confiável para o tempo de sobrevida pós-cirúrgica (p=0,0089). A imunoexpressão de PCNA, apesar de estar correlacionada à marcação por Ki67, não apresentou valores estatisticamente significantes na predição da mortalidade em função da doença e do tempo de sobrevida pós-cirúrgico. Os resultados obtidos confirmam que informações sobre a atividade proliferativa tumoral pela detecção imuno-histoquímica de Ki67 podem incrementar a classificação de mastocitomas cutâneos caninos quanto à malignidade.
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12
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Strefezzi RDF, Xavier JG, Kleeb SR, Catão-Dias JL. Nuclear morphometry in cytopathology: a prognostic indicator for canine cutaneous mast cell tumors. J Vet Diagn Invest 2010; 21:821-5. [PMID: 19901282 DOI: 10.1177/104063870902100608] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Twenty-nine canine cutaneous mast cell tumors (MCTs) were morphometrically analyzed with regard to mean nuclear area (MNA) using cytopathology smears. The results showed a correlation between MNA and survival. When graded into 2 morphometrically different groups, there were statistically significant differences among high- and low-grade MCTs, regarding both Romanowsky-type stain and hematoxylin and eosin. Cytomorphometry could also separate histologic grade II tumors with better prognosis from the more aggressive MCTs. The results indicated that nuclear morphometry on cytopathology preparations can predict the biological behavior of cutaneous MCTs in dogs in an independent manner, yielding a rapid and reproducible diagnosis, which renders the method useful for veterinary oncology.
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Affiliation(s)
- Ricardo de Francisco Strefezzi
- Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, State of São Paulo, Brazil.
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13
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Simeonov R, Simeonova G. Comparative morphometric analysis of recurrent and nonrecurrent canine basal cell carcinomas: a preliminary report. Vet Clin Pathol 2010; 39:96-8. [DOI: 10.1111/j.1939-165x.2009.00173.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Welle MM, Bley CR, Howard J, Rüfenacht S. Canine mast cell tumours: a review of the pathogenesis, clinical features, pathology and treatment. Vet Dermatol 2009; 19:321-39. [PMID: 18980632 DOI: 10.1111/j.1365-3164.2008.00694.x] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mast cells (MCs) are well known for their neoplastic transformation in solitary and multiple cutaneous mast cell tumours (MCTs), as well as visceral and systemic mastocytosis. Dogs have a unique risk of developing cutaneous MCTs, and they account for 7% to 21% of all canine skin tumours. The aetiology of canine MCTs is unknown but is probably multifactorial. This article reviews up-to-date knowledge on the pathogenesis, the clinical presentation, the clinical prognostic factors, the diagnostic workup including clinical staging, cytological findings, histological findings and the various grading systems which have been evaluated based on morphology, the assessment of proliferation markers and other factors such as vessel density. Furthermore, detailed information about current treatment protocols for canine cutaneous MCTs is provided.
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Affiliation(s)
- Monika M Welle
- Institute of Animal Pathology, Vetsuisse Faculty and University of Berne, Berne, Switzerland.
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15
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Marconato L, Marchetti V, Francione D, Masserdotti C, Gregori M, Leotta R, Abramo F. Morphometrical approach for predicting regional lymph node micrometastatic load in canine mast cell tumours: preliminary results. Vet Comp Oncol 2008; 6:162-70. [DOI: 10.1111/j.1476-5829.2008.00157.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Simeonov R, Simeonova G. Nucleomorphometric analysis of feline basal cell carcinomas. Res Vet Sci 2008; 84:440-3. [PMID: 17706734 DOI: 10.1016/j.rvsc.2007.06.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 06/23/2007] [Accepted: 06/30/2007] [Indexed: 11/18/2022]
Abstract
Twenty-four feline spontaneous basal cell carcinomas (BCCs) were analyzed by computerized nuclear morphometry. The study included 15 non-recurrent and 9 recurrent tumours. In each case, the nuclei of at least 100 neoplastic cells were measured, and the mean nuclear area (MNA), mean nuclear perimeter (MNP) and mean nuclear diameter (MND) were calculated. The analysis of data of the non-recurrent BCCs and the recurrent tumours revealed statistically significant differences between those groups (p<0.001) as well as between infiltrative and clear types of BCCs (p<0.05). The results indicate that nuclear morphometry is able to predict recurrent tumour growth and helps to differentiate histological subtypes of BCCs in cats.
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Affiliation(s)
- Radostin Simeonov
- Department of General and Clinical Pathology of Animals, Trakia University, 6000 Stara Zagora, Bulgaria.
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17
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Simeonov RS, Simeonova GP. Use of Quantitative Analysis as a Method for Differentiation between Canine Cutaneous Apocrine Adenomas and Apocrine Carcinomas on Cytological Smears. ACTA ACUST UNITED AC 2007; 54:542-4. [DOI: 10.1111/j.1439-0442.2007.00973.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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