This case report is a 65 year old woman from Kerman. Her main complian is nasal obstruction and recurrent nasal bleeding from five months ago. In clinical examination there was a large tumor in left nasal cavity. CT scaning revealed a large tumor in left nasal cavity and maxillary sinuse. The tumor is resected compeletely with negative safe margine by radical caldwell- luc approach. The origin ...

Background: Colorectal carcinoma is the third most common cause of death in Iran. This study was performed in order to determine the appropriate distal clearance margin (DCM) for resection of rectal cancer in patients who undergo neoadjuvant chemoradiotherapy for sphincter preserving procedure. Materials and Methods: This was a cross-sectional study conducted in Shahid Faghihi Hospital of Shira...

granular cell tumor is a rare benign neoplasm most commonly appears in the head and neck region, especially in the tongue, cheek mucosa, and palate. occurrence in limbs is even rarer. these tumors account for approximately 0.5% of all soft tissue tumors. granular cell tumor can also affect other organs including skin, breast, and lungs. local recurrence and metastasis is potentially higher in m...

[3, 4] . Subsequent work has shown that in appropriately selected cases a distal margin of 10 mm does not increase the local recurrence rate or compromise survival [5] . The lower rectal and anorectal anatomy provides a challenge both from a staging and therapeutic standpoint in rectal cancer. In low rectal cancer (defined as the area below the insertion of the levator muscle), the mesorectal v...

background: in order to improve the evaluation of possible rectal toxicity based on the rectal normal tissue complication probability (ntcp), we consider the fractional dependence of the ntcp on the wall thickness (tw) and rectal displacement (rm). materials and methods: the two-dimensional ntcp model (ntcp2d) was developed using radiotherapy plans of ten randomly selected patients with prostat...

Anorectal melanoma (AM) is a rare and aggressive tumor, characterized by poor prognosis. It accounts for 0.4–1.6% of all melanomas, only 1% anorectal malignant tumors [1]. difficult to diagnose due the hidden site nonspecific symptoms, occurring usually at late stage. The most common symptom rectal bleeding. There are various histological variants AM. currently no consensus treatment typical ...