Smooth Muscle Neoplasm Presenting as Intrapericardial Myxoma

2006 ◽  
Vol 19 (6) ◽  
pp. 835.e1-835.e3 ◽  
Author(s):  
Steven C. Horton ◽  
Stephanie Nay ◽  
Michael Gonzales ◽  
Marsha McIntosh ◽  
Elizabeth Hammond ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Smooth Muscle Neoplasm

Leiomyoma with Bizarre Nuclei (Symplastic Leiomyoma) in the Paratubal Cyst Wall: Report of a Rare Case

2021 ◽  
pp. 106689692199779
Author(s):  
Murat Celik
Keyword(s):  
Differential Diagnosis ◽  
Smooth Muscle ◽  
Cyst Wall ◽  
Rare Case ◽  
Clinical Behavior ◽  
Uterine Smooth Muscle ◽  
Smooth Muscle Neoplasm ◽  
Histological Variants ◽  
Eosinophilic Cytoplasm ◽  
Paratubal Cyst

Leiomyoma is a benign mesenchymal tumor that develops from smooth muscle cells. It can present in various histological variants. Leiomyoma with bizarre nuclei is an infrequent variant of uterine smooth muscle neoplasm. It is characterized by focally or diffusely distributed bizarre cells on the background of a typical leiomyoma. These bizarre cells are large, multinucleated, or multilobulated and have an eosinophilic cytoplasm. Even though leiomyomas with bizarre nuclei display benign clinical behavior, their differential diagnosis from leiomyosarcoma can sometimes be difficult. Leiomyoma has been described most commonly in the uterus. There is no case of leiomyoma originating from paratubal cysts described in the literature. In this article, we present a rare case of leiomyoma with bizarre nuclei originating from a paratubal cyst.

Gastrointestinal Stromal Tumor Presenting as a Recurrent Vaginal Mass

2004 ◽  
Vol 128 (12) ◽  
pp. 1442-1444 ◽  
Author(s):  
Katherine M. Ceballos ◽  
Julie-Ann Francis ◽  
John L. Mazurka
Keyword(s):  
Differential Diagnosis ◽  
Smooth Muscle ◽  
Gastrointestinal Stromal Tumor ◽  
Interstitial Cell ◽  
Smooth Muscle Tumor ◽  
Stromal Tumor ◽  
Mesenchymal Neoplasms ◽  
Smooth Muscle Neoplasm ◽  
Rectal Involvement ◽  
Vaginal Smooth Muscle

Abstract Gastrointestinal stromal tumors are CD117 (c-Kit)–positive mesenchymal neoplasms with histologic and ultrastructural features of the interstitial cell of Cajal. While tumors outside of the gastrointestinal tract have been described, to our knowledge the case we present is the first such case in the vagina. We describe a 75-year-old woman with a recurrent vaginal gastrointestinal stromal tumor without apparent rectal involvement. This tumor was characterized by short intersecting fascicles of spindled cells, focal necrosis, and 12 to 15 mitoses per 50 high-power fields. Immunohistochemistry revealed diffuse cytoplasmic positivity for CD117 (c-Kit), CD34, vimentin, and h-caldesmon. Tumor cells were negative for S100, desmin, actin, and CAM 5.2. The differential diagnosis in this case included a vaginal smooth muscle tumor. While histologically similar to a smooth muscle neoplasm, the immunohistochemical profile ruled out smooth muscle differentiation. Gastrointestinal stromal tumor should be considered in the differential diagnosis of vaginal mesenchymal neoplasms.

The Origin of the Pseudoglandular Spaces in Metastatic Smooth Muscle Neoplasm of Uterine Origin

CHEST Journal ◽  
1983 ◽  
Vol 83 (2) ◽  
pp. 270-274 ◽  
Author(s):  
Guillermo A. Herrera ◽  
Philip A. Miles ◽  
Harvey Greenberg ◽  
Bernhard E.F. Reimann ◽  
Idelle M. Weisman
Keyword(s):  
Smooth Muscle ◽  
Smooth Muscle Neoplasm

scholarly journals Multiple Smooth-Muscle Neoplasm and Thyroid Carcinoma in An Adult With AIDS

1998 ◽  
Vol 37 (2) ◽  
pp. 205-208
Author(s):  
Xuefeng Jing ◽  
Yasushi Nakamura ◽  
Misa Nakamura ◽  
Liang Shan ◽  
Toyoharu Yokoi ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Thyroid Carcinoma ◽  
Smooth Muscle Neoplasm

scholarly journals An estrogen receptor-positive locally aggressive smooth muscle neoplasm of the transverse colon

Medicine ◽  
2018 ◽  
Vol 97 (46) ◽  
pp. e13250
Author(s):  
Genki Usui ◽  
Hirotsugu Hashimoto ◽  
Kazuteru Watanabe ◽  
Yoshiya Sugiura ◽  
Masashi Kusakabe ◽  
...  
Keyword(s):  
Estrogen Receptor ◽  
Smooth Muscle ◽  
Transverse Colon ◽  
Smooth Muscle Neoplasm ◽  
Estrogen Receptor Positive

Phosphohistone-H3 and Ki-67 immunostaining in cutaneous pilar leiomyoma and leiomyosarcoma (atypical intradermal smooth muscle neoplasm)

2013 ◽  
Vol 40 (6) ◽  
pp. 557-563 ◽  
Author(s):  
Munir H Idriss ◽  
Viktoryia Kazlouskaya ◽  
Saurabh Malhotra ◽  
Christian Andres ◽  
Dirk M. Elston
Keyword(s):  
Smooth Muscle ◽  
Ki 67 ◽  
Smooth Muscle Neoplasm ◽  
Phosphohistone H3
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