scholarly journals Undifferentiated Pleomorphic Sarcoma of Soft Tissue with Multinucleated Giant Cells with Osteogenic Phenotypes: A Mimicker of Malignant Giant Cell Tumor of Soft Tissue

2021 ◽  
Vol 30 (3) ◽  
pp. 309-316
Author(s):  
Shunichiro Matsuoka ◽  
Hiromasa Hasegawa ◽  
Sachie Koike ◽  
Tsutomu Koyama ◽  
Tetsu Takeda ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Giant Cells ◽  
Cell Tumor ◽  
Multinucleated Giant Cells ◽  
Undifferentiated Pleomorphic Sarcoma ◽  
Pleomorphic Sarcoma ◽  
Malignant Giant Cell Tumor

CLINICAL AND MORPHOLOGICAL CORRELATIONS AND HISTOPATHOLOGY OF JOINT DAMAGE IN PATIENTS WITH DIFFUSE-TYPE TENOSYNOVIAL GIANT CELL TUMOR

2019 ◽  
Vol 72 (12) ◽  
Author(s):  
Olena O Dyadyk ◽  
Anastasiia Hryhorovska
Keyword(s):  
Giant Cell Tumor ◽  
Giant Cell ◽  
Cell Size ◽  
Giant Cells ◽  
Cell Tumor ◽  
Multinucleated Giant Cells ◽  
Diffuse Type ◽  
Association Coefficient ◽  
Mean Values ◽  
Tenosynovial Giant Cell Tumor

Introduction: Tenosynovial giant cell tumor (TSGCT) (synonym – pigmented villonodular synovitis) – is a rare benign proliferative lesion of the synovial sheath, localized in the joint capsule, bursa or tendon sheath and characterized by locally destructive growth. Depending on the prevalence within the joint elements, the presence of a capsule around the tumor, histophotographic features of cell structure and clinical behavior TSGCT can be divided to localized or diffuse type. The aim of the study was researching of histopathological properties of diffuse-type TSGCT, determine the parameters its morphological indicators and to find out the correlation between these morphological and clinical parameters. Materials and methods: The research material was used biopsy (resect) of pathological lesions from 50 patients who were diagnosed and histologically verified diffuse-type TSGCT. Microscopic examinations of the stained sections and their photo archiving were carried out with use of a Olympus-CX 41 light optical microscope. Group measurable parameters (mean values and Pearson tetrachoric index (association coefficient) were calculated in groups of comparison for morphological and clinical indices of TSGCT. The mean values were compared by Student’s test, P value of ≤0.1 was considered statistically significant. Results:Correlation analysis of indicators that accounted for the pairs of cases «clinic – morphology» revealed the relationships, that had the highest parameters of the association coefficient between such indicators: «presence of villous growths» - «severity of hemosiderosis» (if hypertrophied synovial villi available, with vascular injection and pronounced proliferation of synovial cells, there is also a significant accumulation of hemosiderin pigment); «presence of villous growths» - «type of predominant cellular proliferates» (if cells of TSGCT diffuse type consists of monotonous sheets of stromal cells, with uniform, oval to reniform nuclei, the proliferation of villi in synovial layer is non-distinctive); «presence of nodes» - «kind of stroma» (if nodes predominate, their histological structure is mainly represented by polymorphic clusters of synovitis cells in the form of cells, strands, chains, solid formations, among immature connective tissue with low hyalinosis); «cell size (area, cm²)» - «severity of haemosiderosis» and «cell size (area, cm²)» - «the number of multinucleated giant cells» (there is a pronounced deposition of pigment and accumulation of osteoclast-like multinucleated giant cells type, although usually their number is relatively small compared to the localized type of TSGCT). Conclusions: Morphological parameters, that we have identified, characterize pathological changes in the tissues of TSGCT; careful analysis of the frequency of their occurrence in the different comparison groups made it possible to establish intergroup differences and correlations between individual indicators, which were previously unknown or not obvious. Our study was determine to analyze of incidence rates and correlation relationships, revealed some previously unknown differences and dependencies that are important for understanding the pathogenesis, improvement of diagnosis and prognosis of diffuse-type TSGCT.

scholarly journals Giant Cell Tumor of Soft Parts: A Report of an Equine and a Feline Case

1975 ◽  
Vol 12 (5-6) ◽  
pp. 428-433 ◽  
Author(s):  
G. H. Ford ◽  
R. N. Empson ◽  
C. G. Plopper ◽  
P. H. Brown
Keyword(s):  
Giant Cell Tumor ◽  
Giant Cell ◽  
Giant Cells ◽  
Cell Tumor ◽  
Superficial Fascia ◽  
Femoral Canal ◽  
Malignant Giant Cell Tumor ◽  
Ultrastructural Characteristics ◽  
Characteristic Features ◽  
Multinucleate Giant Cells

Masses removed from the superficial fascia of the jugular groove of a 12-year-old Arabian mare and from the femoral canal of a 7 1/2-year-old female cat appeared to be counterparts of the human malignant giant cell tumor of soft parts, even recapitulating the clinical behavior of the respective subgroups. Histologically, both neoplasms contained the characteristic features of the malignant giant cell tumor of soft parts: large multinucleate giant cells, pleomorphic mononuclear giant cells, histiocytes, fibroblasts and fibrocytes that were sometimes sarcomatous, and foci of hemorrhage and necrosis. Ultrastructural characteristics of the giant cells suggest mesenchymal origin with osteoblastic or chondroblastic differentiation.

Giant Cell Tumor of Soft Tissue with Pulmonary Metastases: Pathologic and Cytogenetic Study

2005 ◽  
Vol 8 (6) ◽  
pp. 718-724 ◽  
Author(s):  
Hua Guo ◽  
Roberto A. Garcia ◽  
Mary Ann Perle ◽  
John Amodio ◽  
M. Alba Greco
Keyword(s):  
Soft Tissue ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Mononuclear Cells ◽  
Chromosomal Abnormalities ◽  
Cytogenetic Study ◽  
Giant Cells ◽  
Cell Tumor ◽  
General Acceptance ◽  
Telomeric Association

Giant cell tumor of soft tissue (GCTST) has gained general acceptance as an uncommon but distinct primary soft tissue tumor since it was first described in 1972. GCTST is predominantly seen in adults and typically shows uniformly dispersed osteoclast-like giant cells admixed with oval to polygonal mononuclear cells. It usually follows a benign clinical course, although the malignant variant has been described in cases in which the mononuclear cells demonstrate obvious dysplastic features. It is still not clear whether the two variants belong to the spectrum of the same tumor. No cytogenetic chromosomal abnormalities have been reported in the literature of GCTST. Interestingly, the osseous counterpart of giant cell tumor, which shares similar histologic features, quite often displays a telomeric association at the cytogenetic level, a finding that has never been reported in GCTST. We report the case of a 12-year-old girl with GCTST of the right leg that metastasized to the lung. Cytogenetic studies from the primary tumor showed the phenomenon of telomeric association involving multiple chromosomes.

scholarly journals Primary mediastinal giant cell tumor

Rare Tumors ◽  
2009 ◽  
Vol 1 (2) ◽  
pp. 141-142
Author(s):  
Judd Goldberg ◽  
Shameen Azizad ◽  
Jela Bandovic ◽  
Arfa Khan
Keyword(s):  
Soft Tissue ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Mononuclear Cells ◽  
English Literature ◽  
Giant Cells ◽  
Posterior Mediastinum ◽  
Cell Tumor ◽  
Distinct Entity ◽  
Posterior Mediastinal

Giant cell tumor of soft tissue is a rare tumor first described by Salm and Sissons in 1972 as being a distinct entity. 1 Histologically, it is composed of multinucleated giant cells dispersed among mononuclear cells, and is indistinguishable from its bone equivalent. 2 The majority of these tumors have been reported to occur in the lower extremity. 2 , 3 We describe a case of giant cell tumor of soft tissue within the posterior mediastinum. The only other report of a primary mediastinal giant cell tumor of soft tissue in the English literature was published by Fu et al. in 2002, in which they described two patients with posterior mediastinal masses. 4

Giant cell tumor of soft tissue originating from the thyroid: a case report and literature review

2020 ◽  
Author(s):  
Jianrong Chen ◽  
Haiyong Zhang ◽  
Xiufang Li ◽  
Mengjun Hu ◽  
Huan Lei ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Soft Tissues ◽  
Mononuclear Cells ◽  
Giant Cells ◽  
Cell Tumor ◽  
Case Presentation ◽  
Uncommon Neoplasm ◽  
Atypical Mitosis

Abstract Background: Giant cell tumor of soft tissues (GCT-ST) is a low malignant uncommon neoplasm, with is histological and immunophenotype similar to that of GCT of bone. Primary giant cell tumor of soft tissue arising in the thyroid is exceedingly rare. Case presentation: We reported a new case of GCT-ST originating from the thyroid occurring in 69-year-old woman. Histologically, the tumor was composed of two morphological components, mononuclear cells admixed with multinucleated osteoclast-like giant cells. Tumor is devoid of atypia, pleomorphism, and atypical mitosis. Immunohistochemically, the tumor cells showed strongly positivity with antibodies to CD68, but were negative for AE1/AE3, EMA and additional muscle markers. Conclusions: Due to its rare occurrence, we analyzed the clinical features of patients with primary thyroid GCT-ST to summarize some of our experiences and conduct a literature. The interest of this case lies in the rarity of this entity, the difficulty in preoperative diagnosis, and the confusion with other malignancies.

scholarly journals Ultrastructure of a Feline Extraskeletal Giant Cell Tumor (Malignant Fibrous Histiocytoma)

1981 ◽  
Vol 18 (6) ◽  
pp. 738-744 ◽  
Author(s):  
A. W. Confer ◽  
F. M. Enright ◽  
G. B. Beard
Keyword(s):  
Endoplasmic Reticulum ◽  
Giant Cell Tumor ◽  
Giant Cell ◽  
Rough Endoplasmic Reticulum ◽  
Malignant Fibrous Histiocytoma ◽  
Mononuclear Cells ◽  
Fibrous Histiocytoma ◽  
Giant Cells ◽  
Cell Tumor ◽  
Multinucleated Giant Cells

A subcutaneous extraskeletal giant cell tumor (malignant fibrous histiocytoma) was excised repeatedly from a 9-year-old Domestic Shorthair cat. Ultrastructurally, the mass was composed of fibroblast-like, histiocyte-like, and multinucleated giant cells, and some undifferentiated cells and mononuclear cells intermediate between the fibroblast-like and histiocyte-like cells. Fibroblast-like cells were characterized by abundant well-developed rough endoplasmic reticulum, relatively smooth cytoplasmic membranes, few lysosomal structures, and finely granular chromatin. Histiocyte-like cells resembled immature macrophages. The cell membranes had many villous projections. Rough endoplasmic reticulum varied in quantity. Lysosomes were numerous. Multinucleated giant cells had characteristics of both the fibroblast-like and histiocyte-like cells. No viral particles were seen.

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