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H&E stain. A leiomyoma, also known as a fibroid, is a benign smooth muscle tumor that very rarely becomes cancer (0.1%). They can occur in any organ, but the most common forms occur in the uterus, small bowel, and the esophagus. Polycythemia may occur due to increased erythropoietin production as part of a paraneoplastic syndrome .
Prognosis. Improve after menopause [ 1] Frequency. ~50% of women by age 50 [ 1] Uterine fibroids, also known as uterine leiomyomas or fibroids, are benign smooth muscle tumors of the uterus, part of the female reproductive system. [ 1] Some women with fibroids have no symptoms while others may have painful or heavy periods. [ 1]
Gastrointestinal stromal tumors ( GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract. GISTs arise in the smooth muscle pacemaker interstitial cell of Cajal, or similar cells. [ 2] They are defined as tumors whose behavior is driven by mutations in the KIT gene (85%), [ 2] PDGFRA gene (10%), [ 2] or BRAF kinase (rare).
The bile duct is some 6–8 cm long, and normally up to 8 mm in diameter. [4]Its proximal supraduodenal part is situated within the free edge of the lesser omentum.Its middle retroduodenal part is oriented inferiorly and right-ward, and is situated posterior to the first part of the duodenum, and anterior to the inferior vena cava.
Ascites ( / əˈsaɪtiz /; [ 5] Greek: ἀσκός, romanized : askos, meaning "bag" or "sac" [ 6]) is the abnormal build-up of fluid in the abdomen. [ 1] Technically, it is more than 25 ml of fluid in the peritoneal cavity, although volumes greater than one liter may occur. [ 4]
Oncology. A myoma is a type of tumor that involves muscle cells. [ 1] There are two main types of myoma: Leiomyomas which occur in smooth muscle. [ 1] They most commonly occur as uterine fibroids, but may also form in other locations. Rhabdomyomas which occur in striated muscle. [ 1][ 2][ 3] They are rare tumors, occur in childhood and often ...
A leiomyosarcoma, also known as LMS, is a rare malignant (cancerous) smooth muscle tumor. [ 1] The origin of the word is from leio- + myo- + sarcoma which means malignant smooth muscle tumor. 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 ...
Meigs syndrome may mimic other conditions, [4] since it is tumor arising from ovaries, pathology of any organs present in the abdomen may show a similar set of symptoms. . These include various gynecological disorders of the uterus such as endometrial tumor, sarcoma, leiomyoma (pseudo-Meigs syndrome); fallopian tube disorders such as hydrosalpinx, granulomatous salpingitis, fallopian tube ...