颗粒细胞瘤(granular cell tumor,GCT)是一种具有施万细胞分化的,胞质丰富,嗜伊红色细颗粒状的圆形或多边形细胞组成的良性肿瘤,1926年Abrikossoff首先描述,最初被认为是颗粒性肌母细胞瘤,但由于肿瘤与周围神经关系密切,且电镜检测及免疫组化均提...
Context. - Granular cell tumor (GCT) is a rare tumor of nerve sheath origin with a predilection for upper aerodigestive tract, skin, and soft tissue. The neoplastic cells typically express S100 and CD68 (KP-1), the latter due to cytoplasmic lysosome content. However, the histogenesis of ...
颗粒细胞瘤(granular cell tumor,GCT)是一种具有施万细胞分化的,胞质丰富,嗜伊红色细颗粒状的圆形或多边形细胞组成的良性肿瘤,1926年Abrikossoff首先描述,最初被认为是颗粒性肌母细胞瘤,但由于肿瘤与周围神经关系密切,且电镜检测及免疫组化均提示瘤细胞具施万细胞分化,故GCT被确认为一种周围神经性肿瘤,但有别于神经...
GCT显示TTF1核染色。 PC、GCT、SCO三者的病理特征见Table 2, GCT PAS染色阳性,是病理诊断的特殊染色。 细胞起源 GCT强烈表达核转录因子TTF1(甲状腺转录因子1),因发育中和成熟的神经垂体的垂体细胞也是TTF1(+),所以提示垂体细胞来源,在EN-WHO 2017中4类垂体后叶肿瘤均TTF1(+),并认为垂体细胞是一种特殊的胶质细...
We report a case of an extremely rare neoplasm, malignant granular cell tumor (MGCT). The tumor occurred in the infratemporal fossa of a 30-year-old man, extended to the left orbital base, into the foramen ovale, and invaded the mandible. A granular cell tumor (GCT) was diagnosed by ...
GCT were surgically treated with the average diameter of resected tumor being 1.2 cm (range 0.2--3.5 cm). Pseudoepitheliomatous hyperplasia was noted in 11 tumors and in one vulvar GCT there was overlying in situ squamous cell carcinoma. Tumors were incompletely excised in 24 of 56 patients ...
Granular cell tumor (GCT) was described in 1926 by Abrikossoff [1]. Diagnosis and Treatment of Esophageal Granular Cell Tumor: A Case Report and Review of the Literature More results ► Dictionary browser ? ▲ granophyre grant Grant Cary grant of probate Grant Ulysses Simpson Grant Wood Grant...
Prenatal Diagnosis of Granular Cell Tumor.GingivaGranular cell tumorNewbornPrenatal diagnosisCongenital granular cell tumor (GCT) is a relatively rare intraoral benign tumor, approximately 200 cases of which have been reported in the neonatal period worldwide. The newborn infant may have feeding ...
Keywords: carcinoma, S-protein, calretinin, PAS diastase, local anesthesia Introduction Granular cell tumor (GCT) is a benign rare tumor that usually affects the head and neck (most frequent place seems to be the tongue)1 and sometimes also appears in the female breast (6%–8% of the GCTs...
Granular cell tumor (GCT) is a rare and usually benign lesion of neural / schwannian origin, most frequently found in middle-age women. The appendicular involvement is extremely rare: in over half a century only twelve cases have been reported in the literature, the patients living in America...