1
|
Oh BH, Kim J, Zheng Z, Roh MR, Chung KY. Treatment of Nodular Fasciitis Occurring on the Face. Ann Dermatol 2015; 27:694-701. [PMID: 26719638 PMCID: PMC4695421 DOI: 10.5021/ad.2015.27.6.694] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 03/03/2015] [Accepted: 03/05/2015] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Surgical excision is generally recommended for the treatment of nodular fasciitis (NF) to rule out sarcoma. However, in cases of NF occurring on the face, the reported recurrence rate is higher and the surgical approach may result in considerable aesthetic concern. OBJECTIVE To describe our experience with NF occurring on the face and evaluate the outcomes of surgical and nonsurgical methods of treatment. METHODS We performed a retrospective review of 16 patients with NF on the face. The patients were treated with surgical excision or nonsurgical methods such as triamcinolone intralesional injection (TA ILI) and pinhole method with a carbon dioxide (CO2) laser. RESULTS Among the 16 patients, surgical treatment was performed in 9 and recurrence occurred in 7 of these 9 patients (77.8%). The recurred lesions showed regression after repeated TA ILI. On the other hand, five patients underwent nonsurgical treatment after the histologic exclusion of malignancy. Their lesions showed regression after repeated pinhole treatment and TA ILI. In one case, NF spontaneously regressed. On a visual analogue scale, the nonsurgical approach showed superior results. However, the values were not statistically significant (6.90±1.56 vs. 5.61±1.36; p=0.163). The satisfaction level was lower in patients who experienced recurrence after surgical excision. CONCLUSION Surgical treatment for NF on the face showed a noticeable recurrence rate and resulted in scarring. Therefore, considering the possibility of spontaneous regression, the nonsurgical method can be considered as an alternative treatment option for NF on the face.
Collapse
Affiliation(s)
- Byung Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jihee Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Zhenlong Zheng
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Ryung Roh
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kee Yang Chung
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
2
|
Ozcelik M, Seker M, Eraslan E, Koca S, Yazilitas D, Ercelep O, Ozaslan E, Kaya S, Hacibekiroglu I, Menekse S, Aksoy A, Taskoylu BY, Varol U, Arpaci E, Ciltas A, Oksuzoglu B, Zengin N, Gumus M, Aliustaoglu M. Evaluation of prognostic factors in localized high-grade undifferentiated pleomorphic sarcoma: report of a multi-institutional experience of Anatolian Society of Medical Oncology. Tumour Biol 2015; 37:5231-7. [PMID: 26553363 DOI: 10.1007/s13277-015-4359-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 10/30/2015] [Indexed: 10/22/2022] Open
Abstract
Most data on prognostic factors for patients with high-grade undifferentiated pleomorphic sarcoma (HGUPS) is obtained from analyses of soft tissue sarcomas. The purpose of this study was to evaluate the clinicopathologic features and their impact on outcomes specifically in patients diagnosed with HGUPS. In this multicenter trial, we retrospectively analyzed 112 patients who were diagnosed and treated at 12 different institutions in Turkey. We collected data concerning the patients, tumor characteristics, and treatment modalities. There were 69 males (61.6 %) and 43 females (38.4 %). Median age was 56 years (19-90). The most common anatomic site of tumor origin was the upper extremity. Pleomorphic variant was the predominant histological subtype. Median tumor size was 8.2 cm (0.6-30 cm). Tumors were mainly deeply seated (57.1 %). Fifty-seven patients (50.9 %) were stage II and the remainder were stage III at the time of diagnosis. Median follow-up was 30 months (2-160). The primary site of distant metastasis was the lung (73.5 %) and the second most common site was the liver (11.7 %). The 5-year overall survival, distant metastasis-free survival, and local recurrence-free survival rates were 56.3, 53.4, and 67.2 %, respectively. Multivariate analysis showed that Eastern Cooperative Oncology Group (ECOG) performance score of II (p = 0.033), deep tumor location (p = 0.000), and development of distant metastasis (p = 0.004) were negatively correlated with overall survival, and perioperative radiotherapy and negative microscopic margins were significant factors for local control rates (p = 0.000 for each). Deep tumor location (p = 0.003) was the only adverse factor related to distant metastasis-free survival. Deep tumor location, ECOG performance score of II, and development of distant metastasis carry a poor prognostic implication on overall survival. These will aid clinicians in predicting survival and treatment decision.
Collapse
Affiliation(s)
- Melike Ozcelik
- Department of Medical Oncology, Kartal Dr. Lutfi Kirdar Education and Research Hospital, Istanbul, Turkey.
| | - Mesut Seker
- Department of Medical Oncology, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Emrah Eraslan
- Department of Medical Oncology, Ankara Oncology Education and Research Hospital, Ankara, Turkey
| | - Sinan Koca
- Department of Medical Oncology, Marmara University Pendik Education and Research Hospital, Istanbul, Turkey
| | - Dogan Yazilitas
- Department of Medical Oncology, Ankara Numune Education and Research Hospital, Ankara, Turkey
| | - Ozlem Ercelep
- Department of Medical Oncology, Kartal Dr. Lutfi Kirdar Education and Research Hospital, Istanbul, Turkey
| | - Ersin Ozaslan
- Department of Medical Oncology, Erciyes University School of Medicine, Kayseri, Turkey
| | - Serap Kaya
- Department of Medical Oncology, Marmara University Pendik Education and Research Hospital, Istanbul, Turkey
| | - Ilhan Hacibekiroglu
- Department of Medical Oncology, Trakya University School of Medicine, Edirne, Turkey
| | - Serkan Menekse
- Department of Medical Oncology, Celal Bayar University School of Medicine, Manisa, Turkey
| | - Asude Aksoy
- Department of Medical Oncology, Inonu University School of Medicine, Malatya, Turkey
| | - Burcu Yapar Taskoylu
- Department of Medical Oncology, Pamukkale University School of Medicine, Denizli, Turkey
| | - Umut Varol
- Department of Medical Oncology, Izmir Katip Celebi University Atatürk Education and Research Hospital, Izmir, Turkey
| | - Erkan Arpaci
- Department of Medical Oncology, Sakarya University School of Medicine, Sakarya, Turkey
| | - Aydin Ciltas
- Department of Medical Oncology, Ordu University School of Medicine, Ordu, Turkey
| | - Berna Oksuzoglu
- Department of Medical Oncology, Ankara Oncology Education and Research Hospital, Ankara, Turkey
| | - Nurullah Zengin
- Department of Medical Oncology, Ankara Numune Education and Research Hospital, Ankara, Turkey
| | - Mahmut Gumus
- Department of Medical Oncology, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Mehmet Aliustaoglu
- Department of Medical Oncology, Kartal Dr. Lutfi Kirdar Education and Research Hospital, Istanbul, Turkey
| |
Collapse
|
3
|
Matuschek C, Lehnhardt M, Gerber PA, Poremba C, Hamilton J, Lammering G, Orth K, Budach W, Bojar H, Bölke E, Peiper M. Increased CD44s and decreased CD44v6 RNA expression are associated with better survival in myxofibrosarcoma patients: a pilot study. Eur J Med Res 2014; 19:6. [PMID: 24491153 PMCID: PMC3942188 DOI: 10.1186/2047-783x-19-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 10/03/2013] [Indexed: 11/10/2022] Open
Abstract
Background New prognostic markers may be of value in determining survival and informing decisions of adjuvant treatment in the heterogeneous group of soft tissue sarcomas known as malignant fibrous sarcomas (MFS). Increased CD44 expression has been associated with a better outcome in cancers such as bladder tumors and could potentially relate to cell-cell interaction as a marker for potential invasion/metastasis. The aim of this pilot study was to determine if there is a correlation between the expression rate of CD44 in adult patients with MFS and clinical outcomes. Methods The clinical outcome of 34 adult MFS patients (19 males and 15 females, average age 62 years, median 63 years, range: 38–88 years) who underwent surgical treatment were evaluated. Twenty-five of these patients had additional adjuvant radiotherapy. Extracted RNA from sarcoma tissues was used to measure the transcripts of CD44s (standard form) and isoform expression. The pooled data for each variant of CD44 was divided in half at the median expression value into two equally sized groups (low and high). Survival modeling and multivariate analysis were used with these two groups to determine if there were differences in survival times and whether this was independent of known factors such as tumor stage/grade, patient age and resection margin status. Results High CD44s and low of CD44v6 expression significantly correlated with an improved outcome (P <0.05 and P <0.02, respectively) whereas CD44v8 and hCD44 (isoforms) did not. Differences in survival were apparent within 6–12 months of operation with >30% difference in survival between low/high expressions at 5 years. These finding were independent of the other measured MFS survival predictors, though the group was homogenous. Conclusions High CD44s and low CD44v6 expression may be an independent predictor of improved survival in MFS patients in this pilot data. This is contrary to other MFS data, which did not account for the CD44 isoforms but is confirmed by data from other cancer types. Further investigation is needed to confirm CD44 isoform expression data as a relevant survival biomarker and whether it could be used to inform clinical decisions such as adjuvant therapy.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Matthias Peiper
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsklinikum Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany.
| |
Collapse
|
4
|
Kim JR, Moon YJ, Kwon KS, Bae JS, Wagle S, Yu TK, Kim KM, Park HS, Lee JH, Moon WS, Lee H, Chung MJ, Jang KY. Expression of SIRT1 and DBC1 is associated with poor prognosis of soft tissue sarcomas. PLoS One 2013; 8:e74738. [PMID: 24019980 PMCID: PMC3760851 DOI: 10.1371/journal.pone.0074738] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 08/02/2013] [Indexed: 12/21/2022] Open
Abstract
Recently, the roles of SIRT1 and deleted in breast cancer 1 (DBC1) in human cancer have been extensively studied and it has been demonstrated that they are involved in many human carcinomas. However, their clinical significance for soft-tissue sarcomas has not been examined. In this study, we evaluated the expression and prognostic significance of the expression of SIRT1, DBC1, P53, β-catenin, cyclin D1, and KI67 in 104 cases of soft-tissue sarcomas. RESULTS: Immunohistochemical expression of SIRT1, DBC1, P53, β-catenin, and cyclin D1 were seen in 71%, 74%, 53%, 48%, and 73% of sarcomas, respectively. The expression of SIRT1, DBC1, P53, β-catenin, and cyclin D1 were significantly correlated with advanced clinicopathological parameters such as higher clinical stage, higher histological grade, increased mitotic counts, and distant metastasis. The expression of SIRT1, DBC1, P53, β-catenin, cyclin D1, and KI67 were significantly correlated with each other and positive expression of all of these predicted shorter overall survival and event-free survival by univariate analysis. Multivariate analysis revealed the expression of SIRT1 as an independent prognostic indicator for overall survival and event-free survival of sarcoma patients. In conclusion, this study demonstrates that SIRT1- and DBC1-related pathways may be involved in the progression of soft-tissue sarcomas and can be used as clinically significant prognostic indicators for sarcoma patients. Moreover, the SIRT1- and DBC1-related pathways could be new therapeutic targets for the treatment of sarcomas.
Collapse
Affiliation(s)
- Jung Ryul Kim
- Department of Orthopaedic Surgery, Chonbuk National University Medical School, Research Institute of Clinical Medicine and Research Institute for Endocrine Sciences, Jeonju, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Lin XY, Wang L, Zhang Y, Dai SD, Wang EH. Variable Ki67 proliferative index in 65 cases of nodular fasciitis, compared with fibrosarcoma and fibromatosis. Diagn Pathol 2013; 8:50. [PMID: 23531088 PMCID: PMC3622623 DOI: 10.1186/1746-1596-8-50] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 03/21/2013] [Indexed: 11/14/2022] Open
Abstract
Abstract Nodular fasciitis is the most common pseudosarcomatous lesion of soft tissue. Ki67 was considered as a useful marker for distinguishing some benign and malignant lesions. To study the usefulness of Ki67 in diagnosis of nodular fasciitis, the expression of Ki67 was examined by using immunostaining in 65 nodular fasciitis specimens, 15 desmoid fibromatosis specimens and 20 fibrosarcoma specimens. The results showed that there was a variable Ki67 index in all 65 cases of nodular fasciitis, and the mean labeling index was 23.71±15.01%. In majority (70.77%) of all cases,the index was ranged from 10% to 50%, in 6.15% (4/65) of cases the higher Ki67 index (over 50%) could be seen. The Ki67 proliferative index was closely related to duration of lesion, but not to age distribution, lesion size, sites of lesions and gender. Moreover, the mean proliferative index in desmoid fibromatosis and fibrosarcoma was 3.20±1.26% and 26.15±3.30% respectively. The mean Ki67 index of nodular fasciitis was not significantly lower than fibrosarcoma, but higher than desmoid fibromatosis. The variable and high Ki67 index in nodular fasciitis may pose a diagnostic challenge. We should not misdiagnose nodular fasciitis as a sarcoma because of its high Ki67 index. The recurrence of nodular fasciitis is rare; and the utility of Ki67 immunostaining may be not suitable for recurrence assessment in nodular fasciitis. Virtual slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/4782335818876666
Collapse
Affiliation(s)
- Xu-Yong Lin
- Department of Pathology, China Medical University, Shenyang, China
| | | | | | | | | |
Collapse
|
6
|
Lintz F, Moreau A, Odri GA, Waast D, Maillard O, Gouin F. Critical study of resection margins in adult soft-tissue sarcoma surgery. Orthop Traumatol Surg Res 2012; 98:S9-18. [PMID: 22595258 DOI: 10.1016/j.otsr.2012.04.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 03/13/2012] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Resection margins constitute a recognized risk factor for local recurrence, but their impact on survival is less clear. HYPOTHESIS Infiltrative proliferation and satellite nodules are prognostic factors for local and systemic aggressiveness. TYPE OF STUDY Retrospective cohort study. PATIENTS AND METHODS In 105 patients under curative treatment, resection quality was assessed on UICC criteria (R0/R1) and on a modified version (R0M/R1M) taking account of proliferation contours and satellite nodules for narrow margins (<1mm). Uni- and multi-variate analysis was performed, and Kaplan-Meier survival curves were compared on log-rank. RESULTS Mean 5-year local recurrence-free survival (LRFS) was 0.64 [0.52-0.76] after R1 surgery, 0.9 [0.85-0.95] after R0, 0.64 [0.519-0.751] after R1M and 0.92 [0.87-0.96] after R0M. Resection type according to R classification correlated with disease-free survival (DFS) (P=0.028), but not with metastasis-free survival (MFS) (P=0.156). Resection type according to RM classification correlated with DFS and MFS. Multivariate analysis disclosed correlations between LRFS rate and RM resection type (HR 6.77 [1.78-25.7], P=0.005), DFS rate and RM resection type (HR 2.83 [1.47-5.43], P=0.001) and grade (HR=3.17 [1.38-7.27], P=0.003), and MFS and grade (HR=3.96 [1.50-10.5], P=0.006). DISCUSSION The microscopic aspect of the proliferation contours and presence of satellite nodules were confirmed as prognostic factors for local and systemic aggressiveness. They impact both disease-free survival and metastasis-free survival in case of margins less than 1mm. Their systematic consideration may help identify patients with elevated systemic risk. LEVEL OF EVIDENCE IV.
Collapse
Affiliation(s)
- F Lintz
- Clinique chirurgicale orthopédique, CHU de Nantes, 1, place Alexis-Ricordeau, 44000 Nantes, France
| | | | | | | | | | | |
Collapse
|
7
|
Alvegård T, Hall KS, Bauer H, Rydholm A. The Scandinavian Sarcoma Group: 30 years' experience. ACTA ORTHOPAEDICA. SUPPLEMENTUM 2009; 80:1-104. [PMID: 19919379 DOI: 10.1080/17453690610046602] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
8
|
Fernebro J, Engellau J, Persson A, Rydholm A, Nilbert M. Standardizing evaluation of sarcoma proliferation- higher Ki-67 expression in the tumor periphery than the center. APMIS 2007; 115:707-12. [PMID: 17550378 DOI: 10.1111/j.1600-0463.2007.apm_650.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Soft tissue sarcomas often present as large and histopathologically heterogenous tumors. Proliferation has repeatedly been identified as a prognostic factor and immunostaining for Ki-67 represents the most commonly used proliferation marker. There is, however, a lack of consensus on how to evaluate Ki-67 staining regarding optimal cut-off levels, selection of tumor areas, and the number of tumor cells to evaluate. We assessed the impact of targeting peripheral versus central tumor areas using tissue microarray-based staining for Ki-67 throughout the tumor diameter in 25 leiomyosarcomas. In 18/25 tumors, Ki-67 expression was higher in the tumor periphery. If 10% staining tumor nuclei was used as cut-off and the maximal Ki-67 staining section in the tumor periphery was considered, 21/25 tumors would have been classified as highly proliferative compared to 14/25 if the tumor center had been analyzed. Similar results were obtained also when higher cut-off levels were used and if the mean expression rather than the maximal expression was considered and the differences were neither caused by necrosis nor by hypoxia (assessed as HIF-1alpha expression). Our findings suggest that the determination of proliferation in soft tissue sarcomas should be standardized for clinical application of Ki-67 as a prognostic marker.
Collapse
Affiliation(s)
- Josefin Fernebro
- Department of Oncology, Institute of Clinical Sciences, Lund University Hospital, Lund, Sweden.
| | | | | | | | | |
Collapse
|
9
|
Shin SJ, Lesser M, Rosen PP. Hemangiomas and Angiosarcomas of the Breast: Diagnostic Utility of Cell Cycle Markers With Emphasis on Ki-67. Arch Pathol Lab Med 2007; 131:538-44. [PMID: 17425381 DOI: 10.5858/2007-131-538-haaotb] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2006] [Indexed: 11/06/2022]
Abstract
Abstract
Context.—Vascular tumors comprise a minor subgroup of tumors arising in the breast and represent variants of hemangiomas and angiosarcomas. Diagnostic challenges may arise when differentiating hemangiomas from types I and II angiosarcomas. Ki-67 expression has been used as an adjunct to distinguish between benign and malignant lesions exhibiting histologic overlap at various anatomic sites.
Objective.—To investigate the utility of Ki-67 and other cell cycle regulatory proteins (S-phase kinase-associated protein 2 [Skp2], p27, and cyclin D1) in the differential diagnosis of mammary vascular lesions.
Design.—Thirty-four vascular tumors (21 hemangiomas and 13 angiosarcomas) of the breast were studied. The Ki-67 index and immunoreactivity for Skp2, p27, and cyclin D1 were determined in each case. Appropriate statistical methods were used.
Results.—The mean value of Ki-67 index was statistically different when comparing hemangiomas and angiosarcomas (P < .001). Angiosarcomas were typically positive for Skp2, whereas hemangiomas were negative (P < .001). Sensitivity and specificity cutoffs for Ki-67 index to distinguish hemangiomas from angiosarcomas showed a candidate cutoff point of 175. The mean values of Ki-67 of low-grade angiosarcomas were significantly different from all hemangiomas (P < .001) and also different from the subset of atypical hemangiomas (P = .02). Sensitivity and specificity cutoffs for Ki-67 index to distinguish all hemangiomas from low-grade angiosarcomas showed a candidate cutoff point between 150 and 175. Among angiosarcomas, positivity for Ki-67 was inversely related to that of p27 but not to Skp2 or cyclin D1. This was also true among hemangiomas.
Conclusions.—Ki-67 index can be used as a diagnostic tool to distinguish between benign and malignant vascular lesions of the breast. This can be particularly helpful in cases of histologic overlap such as low-grade angiosarcoma and hemangioma.
Collapse
Affiliation(s)
- Sandra J Shin
- Department of Pathology and Laboratory Medicine-Starr 1009, New York Presbyterian Hospital-Weill Medical College of Cornell University, 525 E 68th St, New York, NY 10021, USA.
| | | | | |
Collapse
|
10
|
Mizukami H, Yajima N, Wada R, Matsumoto K, Kojima M, Klöppel G, Yagihashi S. Pancreatic malignant fibrous histiocytoma, inflammatory myofibroblastic tumor, and inflammatory pseudotumor related to autoimmune pancreatitis: characterization and differential diagnosis. Virchows Arch 2006; 448:552-60. [PMID: 16538442 DOI: 10.1007/s00428-006-0157-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2005] [Accepted: 01/10/2006] [Indexed: 12/24/2022]
Abstract
Malignant fibrous histiocytoma (MFH) and inflammatory myofibroblastic tumor (IMT) are uncommon primary non-epithelial cell tumors of the pancreas. In addition, there are inflammatory pseudotumors (IPT) that may arise in the course of autoimmune pancreatitis (AIP). In the English language literature, only 24 cases of IMT and nine cases of MFH in the pancreas have been reported to date. We investigated three individual spindle cell tumors of the pancreas that were identified as MFH, IMT, and IPT, respectively, using immunohistochemical and molecular analysis. Both the MFH and the IMT, but not the IPT, showed nuclear p53 expression and mutations of the p53 gene. The MFH and the IMT also had higher mitotic and Ki-67 (MIB-1) indexes than the IPT. The IPT was found to be a tumor-like case of AIP. Many IgG4-positive plasma cells, which are considered to be a feature of AIP, were found in all three tumors. It is concluded that in this series of spindle cell tumors of the pancreas, apart from immunohistochemical features, the demonstration of p53 mutations may be helpful in distinguishing true neoplastic tumors from pseudotumors such as IPTs arising in the context of AIP.
Collapse
MESH Headings
- Adult
- Autoimmune Diseases/complications
- Base Sequence
- Diagnosis, Differential
- Female
- Gene Expression
- Gene Expression Profiling
- Granuloma, Plasma Cell/etiology
- Granuloma, Plasma Cell/genetics
- Granuloma, Plasma Cell/pathology
- Histiocytoma, Malignant Fibrous/genetics
- Histiocytoma, Malignant Fibrous/metabolism
- Histiocytoma, Malignant Fibrous/pathology
- Humans
- Immunohistochemistry
- Ki-67 Antigen/metabolism
- Male
- Middle Aged
- Mutation
- Neoplasms, Muscle Tissue/genetics
- Neoplasms, Muscle Tissue/metabolism
- Neoplasms, Muscle Tissue/pathology
- Pancreatectomy
- Pancreatic Neoplasms/genetics
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- Pancreatitis/complications
- Pancreatitis/pathology
- Polymerase Chain Reaction
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
Collapse
Affiliation(s)
- Hiroki Mizukami
- Department of Pathology, Hirosaki University School of Medicine, and Division of Surgical Pathology, National Hirosaki Hospital, 036-8562, Japan
| | | | | | | | | | | | | |
Collapse
|
11
|
Abstract
Tissue microarrays have rapidly become a vital tool in the analysis of protein biomarkers on large patient cohorts. Composed of hundreds of miniature histologic tissue cores taken from patient tumors and arrayed in a grid pattern, tissue microarrays have great potential for automation. However, unlike DNA/RNA expression arrays, they contain spatial information, such that successful automation requires both the ability to quantitateandlocalize biomarkers within the tissue. This review traces tissue microarray analysis from the simplest of systems (visual inspection) to dedicated, automated quantitative analyzers capable of localizing biomarkers to sub-cellular compartments. It focuses on the importance of automating the process of tissue microarray analysis, while commenting on the inherent problems associated with both manual and automated analysis. Finally, it discusses the future of automated tissue microarray analysis, emphasizing the many areas of development and potential improvement.
Collapse
|
12
|
Current Awareness on Comparative and Functional Genomics. Comp Funct Genomics 2005. [PMCID: PMC2447519 DOI: 10.1002/cfg.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|