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Leiomyoma enucleated from a uterus. External surface on left; cut surface on right. Micrograph of a small, well-circumscribed colonic leiomyoma arising from the muscularis mucosae and showing fascicles of spindle cells with eosinophilic cytoplasm and elongated, cigar-shaped nuclei Immunohistochemistry for β-catenin in uterine leiomyoma, which is negative as there is only staining of cytoplasm ...
Genital leiomyoma can be symptomatic or asymptomatic and is dependent on the type of leiomyoma. In most cases, pain in the affected area or region is most common. For vaginal leiomyoma, vaginal bleeding and pain may occur. Uterine leiomyoma may exhibit pain in the area as well as painful bowel movement and/or sexual intercourse.
Physical examination and ultrasound are sufficient for diagnosing uterine fibroids in the majority of people. When ultrasound findings are inconclusive, magnetic resonance imaging (MRI) may be able to confirm the diagnosis of uterine fibroids in most cases. In addition, MRI can identify benign uterine fibroids with atypical imaging features and ...
No or mild atypia, no tumor cell necrosis ⇒ leiomyoma. If 5 or more mitotic figures are present in 10 high powered fields but the behavior still appears benign, may append “with significant mitotic activity”. Moderate to severe atypia without tumor cell necrosis atypical leiomyoma if < 10 mitotic figures per high power field or
Cutaneous leiomyoma, also known as leiomyoma cutis, [1] or cutaneous leiomyomata, [2] is a benign skin tumor made of smooth muscle cells. [3] There are three different types of cutaneous leiomyomas, genital leiomyomas, angioleiomyomas, and piloleiomyomas. Cutaneous leiomyomas can occur sporadically or as a part of a genetic condition.
HLRCC is an autosomal dominant condition caused by a mutation in the FH gene, which results in dysfunction of the citric acid cycle, leading to an accumulation of fumarate. [7] [12] The fumarate hydratase gene is located on the long arm of chromosome 1 (1q42.3-43), spans 22 kilobases and has 10 exons; the first exon codes for a signal peptide.
A leiomyosarcoma (LMS) is a rare malignant (cancerous) smooth muscle tumor. [1] The word is from leio- 'smooth' myo- 'muscle' and sarcoma 'tumor of connective tissue'. The stomach, bladder, uterus, blood vessels, and intestines are examples of hollow organs made up of smooth muscles where LMS can be located; however, the uterus and abdomen are the most common sites.
In order to see adenomatoid tumors multiple imaging modalities are used. These tumors appear to be small, solid, and circumscribed with a color that usually ranges from white to tan. [6] Ultrasound, MRI, and CT scans are all used to identify whether a patient has adenomatoid tumors. The shape, location, and activity of the tumor are all ...