DIFFERENTIAL DIAGNOSIS OF FIBROMATOSIS AND FIBROSARCOMA WITH HISTOPATHOLOGIC CHARACTERISTICS AND IHC MARKERS

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DEYHIMI PARVIZ; AREFIAN MAHMOUD REZA; MAHZOONI PARVIN

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Journal: Tehran University Medical Journal Year:2015 | Volume:72 | Issue:10 Page(s): 706-716

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Title

DIFFERENTIAL DIAGNOSIS OF FIBROMATOSIS AND FIBROSARCOMA WITH HISTOPATHOLOGIC CHARACTERISTICS AND IHC MARKERS

Author(s)

DEYHIMI PARVIZ | AREFIAN MAHMOUD REZA | MAHZOONI PARVIN | Issue Writer Certificate

Keywords

BETA CATENINQ2

FIBROMATOSISQ2

FIBROSARCOMAQ3

HISTOPATHOLOGYQ2

KI-67Q2

Abstract

Background: FIBROMATOSIS includes a variety of fibroblastic proliferation whose biological trend and histopathological patterns are at intermediate level between benign fibroblastic lesions and FIBROSARCOMA. Accordingly, because of overlapping of histopathologic features of FIBROSARCOMA, particularly low-grade type, with FIBROMATOSIS, the present study was conducted to find more precise criteria for histopathological and immunohistochemical (IHC) differentiation of these lesions.Methods: In this cross-sectional descriptive analytical study, a total of 40 specimens from pathology department archives in hospitals of Isfahan and Tehran universities from 2003 to 2013, including 20 FIBROSARCOMA and 20 FIBROMATOSIS biopsies, were selected. First, histopathologic characteristics were identified using H& E slides and an optical microscope H& E slides and then they were stained through immunohistochemical staining technique using the En Vision for markers KI-67 andβ-catenin. Afterward the samples were examined by optical microscope and positively stained cells were counted.Results: There was no significant difference between FIBROMATOSIS and FIBROSARCOMA in terms of a mean age (P=0.063), distribution of gender frequency (P=0.197), necrotic rate (P=0.602), clarity of nucleolus (P=0.799) and SID mean of b-catenin marker (0.369). However, it was seen a meaningful difference between FIBROMATOSIS and FIBROSARCOMA in terms of frequency distribution (P=0.017), rate of mitotic figures (P<0.001), rate of herring-bone pattern (P=0.043), rate of cellularity (P<0.001), rate of nucleus overlapping (P<0.001), mean of KI-67 (P=0.046), mean of KI-67-limit (P=0.001) and atypia rate (P<0.001).Conclusion: There was a meaningful difference between FIBROSARCOMA and FIBROMATOSIS in terms of mitotic figures, expression of KI-67 mitotic marker, herring bone pattern, cellularity and atypia. Therefore these features can be used to differentiate the relevant pathological lesions. However, no meaningful difference between two tumors in terms of expression and intensity of b-catenin, clarity of nucleoli and necrosis. This indicates that they are not reliable criteria of differentiation between FIBROSARCOMA and FIBROMATOSIS.

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APA: Copy

DEYHIMI, PARVIZ, AREFIAN, MAHMOUD REZA, & MAHZOONI, PARVIN. (2015). DIFFERENTIAL DIAGNOSIS OF FIBROMATOSIS AND FIBROSARCOMA WITH HISTOPATHOLOGIC CHARACTERISTICS AND IHC MARKERS. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), 72(10), 706-716. SID. https://sid.ir/paper/38388/en

Vancouver: Copy

DEYHIMI PARVIZ, AREFIAN MAHMOUD REZA, MAHZOONI PARVIN. DIFFERENTIAL DIAGNOSIS OF FIBROMATOSIS AND FIBROSARCOMA WITH HISTOPATHOLOGIC CHARACTERISTICS AND IHC MARKERS. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ)[Internet]. 2015;72(10):706-716. Available from: https://sid.ir/paper/38388/en

IEEE: Copy

PARVIZ DEYHIMI, MAHMOUD REZA AREFIAN, and PARVIN MAHZOONI, “DIFFERENTIAL DIAGNOSIS OF FIBROMATOSIS AND FIBROSARCOMA WITH HISTOPATHOLOGIC CHARACTERISTICS AND IHC MARKERS,” TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), vol. 72, no. 10, pp. 706–716, 2015, [Online]. Available: https://sid.ir/paper/38388/en

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