نتایج جستجو برای: rare tumors
تعداد نتایج: 403525 فیلتر نتایج به سال:
Introduction: Thyroid gland fibrosarcomas are extremely rare tumors, and only very few cases have been described in the literature. There are no set recommendations along with follow-ups regarding the treatment of these tumors. Moreover, the prognosis is poor with a very short life expectancy. Case Report: We present an 81-year-old patient who was suffering from increa...
Background:Unilateral tumors or masses of the adrenal gland are common. They are categorized as either functional (hormone-secreting) or silent and as either benign or malignant. Adrenocortical tumors are rare in childhood, with an incidence of 0.3-0.5 cases per one million child-years. Almost half of childhood tumors are adrenocortical carcinomas (ACC). Most ACCs are sporadic, but specialy i...
Background: Hepatic tumors are rare in children comprising only 1% - 4 % of all childhood solid tumors. Primary sarcomas of the liver are extremely rare and represent approximately 0.2 % of all liver tumors. Undifferentiated embryonal sarcoma of liver is an aggressive tumor with an unfavorable prognosis. Here we reported a case of undifferentiated embryonal sarcoma of liver in a 9-year-old boy ...
Calcifying epithelial odontogenic tumor is a rare odontogenic neoplasm. Its occurrence in the maxillary sinus is very rare. Maxillary tumors tend to be locally aggressive and may rapidly involve the surrounding vital structures. We report a case of calcifying epithelial odontogenic tumor involving maxillary sinus in a 48 years old female patient with the oral mucosal involvement. The purpose o...
solid pseudopapillary tumors of the pancreas (spt) are rare tumors of the pancreas with low malignancy potential and a very good prognostic outcome after surgery. the outcome after radical resection is favourable. a case of solid-pseudopapillary tumor (spt) of the pancreas in a 20-year-old woman is presented. the patient underwent resection of the mass in the pancreatic head and pancreaticoduod...
calcifying epithelial odontogenic tumor (ceot) is a rare benign, but locally infiltrating odontogenic neoplasm. it accounts for less than 1% of all odontogenic tumors. this is a case report of recurrent ceot in the maxilla. a 35-year-old patient reported after three years of surgical excision of the lesion, with a recurrence. it is of particular concern because of its anatomic location in the m...
a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...
introduction paragangliomas are mostly localized in the adrenal medulla and they are usually pheochromocytomas, derived from the neural crest, but otherwise mesenteric paragangliomas are extremely rare tumors. case presentation in this article we represent a 59-year-old female with an abdominal mass and pain due to mesenteric paraganglioma. conclusions paragangliomas can occur as mesenteric tum...
Giant cell glioblastoma is an extremely rare variant of Glioblastoma (WHO grade IV) which is characterized by a predominance of bizarre, multinucleated giant cells. These tumors comprise of 0.8% of brain tumors and up to 5% of glioblastomas. In pediatric age group, these tumors are still uncommon with only around 53 published cases since 1952. Here, we report a case of a 12-year old female pat...
Background: Ovarian cancer is the most common cause of cancer death worldwide. Incidence of ovarian cancer is more common in postmenopausal women. Premenopausal onset is rare and the present study described two cases of ovarian clear cell tumors in young women. Case Presentation: The patients presented with pelvic mass which was confirmed by sonography and laparotomy and final diagnosis was ...
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