Results 241 to 250 of about 35,905 (266)

Role of Electron Microscopy in Metastatic Endometrial Stromal Tumors

Ultrastructural Pathology, 1993
Endometrial stromal tumors may pose a problem in diagnosis when they appear as metastatic lesions without a known primary tumor. To determine the usefulness of electron microscopy in identifying them in these situations, optimally fixed low-grade stromal sarcomas (five), normal endometrial specimens (six), and malignant mesodermal mixed tumors (four ...
G R, Dickersin, R E, Scully
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Frequency of Known Gene Rearrangements in Endometrial Stromal Tumors

American Journal of Surgical Pathology, 2011
Translocations resulting in gene fusion are characteristic of endometrial stromal tumors (ESTs). Rearrangements of JAZF1, SUZ12, PHF1, and EPC1 have been reported in endometrial stromal nodules (ESNs), endometrial stromal sarcomas (ESSs), and rarely in undifferentiated endometrial sarcomas (UESs). Detection of JAZF1, SUZ12, EPC1, and PHF1 rearrangement
Sarah, Chiang, Rola, Ali, Nataliya, Melnyk, Jessica N, McAlpine, David G, Huntsman, C Blake, Gilks, Cheng-Han, Lee, Esther, Oliva   +7 more
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An endometrial stromal tumor with osteoclast-like giant cells

Annals of Diagnostic Pathology, 2005
Endometrial stromal tumors (ESTs) of the uterine corpus have a striking propensity to display diverse morphological variations, including sex cord-like, smooth muscle, or skeletal muscle differentiation; fibrous change; myxoid change; or bland endometrioid-type glands.
Oluwole, Fadare, Benjamin, McCalip, M Rajan, Mariappan, Denise, Hileeto, Vinita, Parkash   +4 more
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Endometrial Stromal Tumors of Extra-uterine Tissue

American Journal of Clinical Pathology, 1981
Three extra-uterine tumors, unassociated with endometriosis, had light microscopic features of endometrial stromatosis (low-grade endometrial stromal sarcoma). Two tumors occurred in the retroperitoneum and one adjacent to the vagina. Distinctive features identifying these neoplasms as ectopic growths of endometrial stroma included prominent vessels ...
T M, Ulbright, F T, Kraus
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Unusual Morphologic Features of Endometrial Stromal Tumors

American Journal of Surgical Pathology, 2005
Endometrial stromal tumors with typical morphology usually do not pose diagnostic problems. However, the finding of unusual morphologic features may be misleading in the final interpretation of these tumors. Herein, we described two endometrial stromal sarcomas discovered in hysterectomy specimens of women 31 and 75 years of age.
Baker, Patricia M, Moch, Holger, Oliva, Esther   +2 more
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Endometrial stromal tumor presenting as multiple endometrial polyps with limited infiltration; a novel presentation

American Journal of Clinical Pathology, 2023
Abstract Introduction/Objective The 2020 WHO classifies endometrial stromal tumors into endometrial stromal nodule (ESN), low-grade endometrial stromal sarcoma (LGESS), high-grade endometrial stromal sarcoma, and undifferentiated sarcoma.
K Saikia, Z Ziying, Z B Wang, N Azordegan, A Scialla   +4 more
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Malignant Potential of Endometrial Stromal Tumor With Limited Infiltration

International Journal of Surgical Pathology, 2013
Endometrial stromal tumors (ESTs) with limited infiltration were first proposed by Dionigi et al.1 However, the prognostic significance of these tumors is unclear. We report a case of a 60-year-old woman who presented with a prolapsed uterine corpus and then underwent laparoscopic-assisted vaginal hysterectomy. A very small EST was incidentally found.
Ting-Fu, Su, Tai-Kuang, Chao, Herng-Sheng, Lee, Cherng-Lih, Perng, Shin, Nieh   +4 more
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h-Caldesmon Expression Effectively Distinguishes Endometrial Stromal Tumors From Uterine Smooth Muscle Tumors

The American Journal of Surgical Pathology, 2001
Distinction of endometrial stromal neoplasms from cellular smooth muscle tumors of the uterus is sometimes difficult. Immunohistochemistry is often not helpful because muscle actins and desmin are expressed in both neoplasms. This study's goal was to determine whether h-caldesmon, a smooth muscle-specific isoform of a calcium, calmodulin, and actin ...
M R, Nucci, J T, O'Connell, P C, Huettner, A, Cviko, D, Sun, B J, Quade   +5 more
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A case of endometrial stromal tumor with epithelial elements

Medical Electron Microscopy, 1994
A rare endometrial stromal tumor with marked epithelial differentiation was found in a 56-year-old female. This polypoid tumor, occupying the uterine cavity, was composed of an admixture of endometrial stromal and glandular components. Ultrastructurally and immunohistochemically, it is suggested that these epithelial elements were derived from ...
Fujihiko Suzuki, Mikio Aoki, Akihiko Yamamura, Michio Matsumoto, Masanobu Eguchi, Masataka Tanno, Kunio Mizuguchi, Yoshinori Hosokawa, Koichi Suda   +8 more
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Analysis of MDM2 Amplification in 43 Endometrial Stromal Tumors

International Journal of Gynecological Pathology, 2015
MDM2 amplification is known to occur in a variety of neoplasms and its detection by fluorescence in situ hybridization is helpful in distinguishing well-differentiated and dedifferentated liposarcoma from classic lipoma. We recently evaluated a mesenteric mass initially diagnosed as dedifferentiated liposarcoma, largely due to the neoplasm's myxoid ...
J Kenneth, Schoolmeester, Andrew P, Sciallis, Patricia T, Greipp, Jennelle C, Hodge, Paola, Dal Cin, Gary L, Keeney, Marisa R, Nucci   +6 more
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