Primitive Neuroectodermal Tumors(PNETs) are common tumors in children and are mainly intracranial in location. They frequently disseminate throughout the central nervous system via CSF(cerebrospinal fluid) and may rarely have metastasis outside the neuraxis. Rare cases of primary intraspinal PNETs have been reported so far and most of which are located intradurally in cauda equina. ...

چکیده اطلاع از واریاسیونهای شبکه بازوئی در اعمال جراحی ناحیه آگزیلا برای جراحان از اهمیت ویــژه ای برخوردار است. مورد نادری که گزارش می شود، در اندام فوقانی چپ کاداور یک زن 55 ساله، در جریان تشریح معمولی و در دانشکده پزشکی رشت مشاهده شده‌است. در این نمونه عصب موسکوکوتانئوس که معمولاً از طناب خارجی شبکه بازوئی منشعب می‌شود، از عصب مدین جدا شده و بدون سوراخ کردن عضله کوراکو براکیالیس، بین دو عضله...

Primitive Peripheral Malignant Neuroectodermal Tumor is a malignant neoplasm of neural origin with high mortality which occurs mostly in children and adolescents. The most common site of involvements are chest wall and paraspinal regions. Head and neck involvement is rare. The diagnosis is based upon histopathologic and immuno-histochemical studies. Treatment is combination of surgery, radiothe...

Sciatic nerve, as the largest branch of the sacral plexus and the thickest nerve of the body, forms from the ::::union:::: of ventral branches of L4-S3. Then it leaves the pelvis via the greater sciatic foramen below the piriformis and descends between the greater trochanter and ischial tuberosity. Afterwards, it divides into the tibial and the common proneal nerves, most frequently at the leve...

Different opinions exit in histological typing of bone cysts. Epidermoid cysts are very rare as the small numbers of published cases indicate. They arises following preceding trauma exclusively in distal phalanges and skull. The roentgenogram shows a round osteolytic resion with no trabecular pattern. We observed 2 cases of epidermoid cyst of finger in Imam Khomeini hospital central path depart...