نتایج جستجو برای: malignant tumor

تعداد نتایج: 563949  

Journal: :journal of dental research, dental clinics, dental prospects 0
shirin fattahi sepideh vosoughhosseini monir moradzadeh khiavi seyed mostafa mahmoudi parya emamverdizadeh seyed gholamreza noorazar

background and aims. head and neck tumors are the most common complaints of people referring to different medical sections, especially in children. the aim of this study was to evaluate the prevalence of these tumors in children less than 12 years of age to provide a better perspective for future studies. materials and methods. all the files in department of pathology at tabriz pediatric hospit...

Journal: :international journal of hematology-oncology and stem cell research 0
alireza abdollahi associate professor of pathology, school of medicine, imam khomeini hospital complex, tehran university of medical sciences. tehran, iran abbas alibakhshi assistant professor of surgery, imam khomeini hospital complex, vali-asr hospital, surgery ward, tehran university medical of sciences tehran, iran. zahra farahani physiologists, maternal fetal and neonatal research center, tehran university medical of sciences, tehran, iran

background : breast cancer is the most common invasive cancer in females worldwide. it accounts for 16% of all female cancers and 22.9% of invasive cancers in women. 18.2% of all cancer deaths worldwide including both males and females are from breast cancer. in this study we compared few serum elements in patients with benign and malignant breast tumor to find any related prognostic and predic...

Journal: :iranian journal of radiology 0
seung-gu yeo department of radiation oncology, soonchunhyang university college of medicine, soonchunhyang university hospital, cheonan, republic of korea eun seok kim department of radiation oncology, soonchunhyang university college of medicine, soonchunhyang university hospital, cheonan, republic of korea min-jeong kim department of radiology, hallym university college of medicine, hallym university sacred heart hospital, anyang, republic of korea; department of radiology, hallym university sacred heart hospital, anyang, republic of korea. tel: +82-313803918, fax: +82-313803878 hong il ha department of radiology, hallym university college of medicine, hallym university sacred heart hospital, anyang, republic of korea kwanseop lee department of radiology, hallym university college of medicine, hallym university sacred heart hospital, anyang, republic of korea mi jung kwon department of pathology, hallym university college of medicine, hallym university sacred heart hospital, anyang, republic of korea

a malignant peripheral nerve sheath tumor (mpnst) is very rare, representing 3 - 10% of all soft tissue sarcomas. approximately half of all such tumors are diagnosed in patients with neurofibromatosis type 1 (nf1). the extremities are involved most commonly, and the patient’s age is usually 20 - 50 years. herein, we present a case of an mpnst that developed sporadically in an unusual location a...

Malignant transformation of glomus tumor is exceedingly rare and most common reported in lower extremity and abdominal viscera. We could find only 6 previous case report of malignant glomus tumor in the hand. Although large and deeply located glomus tumors are considered to be malignant, evidence has shown that most of these cases were clinically benign. These lesions are better considered as g...

Journal: :acta medica iranica 0
hayedeh haeri department of pathology, cancer institute, imam khomeini medical complex, tehran, iran. babak vosooghi department of pathology, cancer institute, imam khomeini medical complex, tehran, iran. fahimeh asadi amoli department of pathology, farabi hospital, tehran, iran.

primary retroperitoneal mucinous tumor (prmt) of low malignant potential (border line) is an uncommon neoplasm with fewer than 50 reported cases. uncertain diagnostic imaging results make diagnosis of its origin difficult, preoperatively. later treatment planning and prognosis would be affected by exact diagnosis of the tumor origin. this study presents a case of persian woman with diagnostic, ...

Journal: :acta medica iranica 0
n. pishva a. forouzandeh r. hejazi

twenty five cases of minor saliva ry glands tumors which was observedat the department of pathology of university of tehran from 1967 to 1972 are presented and discussed . benign mixed tumor is the most common and the only benign lesion in this series of 75 patient with intraoral salivary gland tumor. there were eleven malignant type and hence about 44% of all the tumor arc malignant and it cor...

The malignant transformation of conventional giant cell tumor of bone (GCTOB) is rare and usually occurs with irradiation. Here we report two neglected cases of conventional GCTOB with spontaneous malignant transformation at 11 and 16 years after initial diagnosis. In the former case, the patient refused to receive any treatment following the incisional biopsy, and in the latter, the firs...

MOHAMMAD REZA MOTAMEDI, P SHISHINEH,

Primary malignant neoplasms of the pericardium are rare and are predominantly mesotheliomas, followed by benign localized fibrous mesothelioma, malignant fibrosarcoma, angiosarcoma and benign and malignant teratomas. 1 This article concerns an atypical presentation of this malignant tumor with symptoms and signs of pericardial effusion. This unusual feature was complete encasement of the h...

Journal: :acta medica iranica 0
mohammad ali naraghi departments of anatomy and institute of cancer, school of medicine, tehran university of medical sciences, tehran, iran.

a 28-year-old man with neurofibromatosis type 1(nf1) presented with a tumor in the sciatic nerve and femoral nerve. the differential diagnosis of malignant peripheral nerve sheath tumor was based on clinical, radiological, and histological evidence. the tumor apparently originated in sciatic nerve at the posterior aspect of the left thigh. the lesion was resected totally without neural damage t...

Bita Geramizadeh, Mehrzad Pourjafar Negar Azarpira, Ramin Mardani Saeid Farokhi

Neurofibromatosis type 2 is an inherited disease. The main manifestation of the disease is the development of symmetric, non-malignant brain tumors in the region of the cranial nerve VIII usually as schwannoma. We report here a 20-year-old woman with primary intracranial malignant nerve sheath tumor located in the left cerebellopontine angle. Histologically, the tumor showed malignant spindle c...

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