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Brenner tumours are an uncommon subtype of the surface epithelial-stromal tumour group of ovarian neoplasms. The majority are benign, but some can be malignant. [1] They are most frequently found incidentally on pelvic examination or at laparotomy. [2] Brenner tumours very rarely can occur in other locations, including the testes. [3]
LMP tumors make up approximately 10–15% of all ovarian tumors. [31] [71] They develop earlier than epithelial ovarian cancer, around the age of 40–49. They typically do not have extensive invasion; 10% of LMP tumors have areas of stromal microinvasion (<3mm, <5% of tumor).
The tumors may be very small to very large, and may be solid or cystic. Histologically, the tumor consists of nests of the aforementioned transitional cells within surrounding tissue that resembles normal ovary. Brenner tumors may be benign or malignant, depending on whether the tumor cells invade the surrounding tissue.
In medicine, Meigs's syndrome, also Meigs syndrome or Demons–Meigs syndrome, is the triad of ascites, pleural effusion, and benign ovarian tumor (ovarian fibroma, fibrothecoma, Brenner tumour, and occasionally granulosa cell tumour). [1] [2] [3] Meigs syndrome resolves after the resection of the tumor. Because the transdiaphragmatic lymphatic ...
The grade score (numerical: G1 up to G4) increases with the lack of cellular differentiation - it reflects how much the tumor cells differ from the cells of the normal tissue they have originated from (see 'Categories' below). Tumors may be graded on four-tier, three-tier, or two-tier scales, depending on the institution and the tumor type.
Micrograph of a cystic Walthard cell rest (lower right of image) within the connective tissue of a fallopian tube (tubal epithelium – upper left of image). H&E stain . Walthard cell rests , sometimes called Walthard cell nests , are a benign cluster of epithelial cells most commonly found in the connective tissue of the fallopian tubes , but ...
The TNM Classification of Malignant Tumors (TNM) is a globally recognised standard for classifying the anatomical extent of the spread of malignant tumours (cancer). It has gained wide international acceptance for many solid tumor cancers, but is not applicable to leukaemia or tumors of the central nervous system .
This allows for the detection of a pneumothorax with the absence of normal ‘lung-sliding’ and ‘comet-tail’ artifact (seen on the ultrasound screen). Compared with supine chest radiography , with CT or clinical course as the gold standard, bedside sonography has superior sensitivity (49–99% versus 27–75%), similar specificity (95 ...