micropapillary variant of urothelial carcinoma (uc) of the bladder is an aggressive tumour, comprising 0.6-6% of all uc. it generally presents with high-grade and stage, and has been reported as having a worse prognosis when compared to traditional uc. we report the case of a 58-year-old man who presented with macroscopic haematuria. the patient was diagnosed with high-grade urothelial carcinom...

the paranasal sinuses are known to be a rare location for metastasis. renal cell carcinoma (rcc) is the most frequent primary tumor to metastasize to the sinonasal region, followed by lung and breast cancer. in particular, clear cell type rcc, which represents approximately 85% of rccs, is characterized by early metastasis, and it sometimes spreads to unusual sites (1, 2). metastatic tumors in ...

background and aim: basal cell carcinoma (bcc) is the most common skin neoplasm and the most common type of cancer. since the incidence of injury is taken into consideration in the pathologic diagnosis, the study of clinical and microscopic views of bcc is of particular importance. the present study aimed at determining the frequency of clinical and microscopic views of bcc in a 10-year period ...

squamous cell carcinoma (scc) is the most common malignancy of the oral cavity. this study aims to evaluate different treatment procedures including neo-adjuvant, concurrent and adjuvant therapy in treating squamous cell carcinoma of the head and neck by a meta-analysis.the authors searched all electronic databases (medline, embase and cochrane) for all the articles published from 1970 to janua...

verrucous carcinoma is a unique clinical and pathological entity which has been recognised in the recent years. it is a variant of well-differentiated squamous cell carcinoma which may occur in the larynx; other anatomic locations such as: the oral cavity, anogenital region, and skin may be involved. it accounts for 1-2% of all laryngeal cancers. the clinical, histopathological and biologic fea...

the aim of this study was to evaluate the morbidity and mortality in patients with operable stage ii and iii rectal cancers within one or two months after surgery, who has been treated pre-operatively with short course radiotherapy. twenty-eight patients with rectal adenocarcinoma, consecutively referred to the cancer institute of imam khomeini hospital from march 2009 to march 2010, were selec...

the larvae causing myiasis can lead extensive tissue destruction, invasion into deep tissues and secondary infec­tions. poor hygiene, low socioeconomic condition and presence of open wounds are the most important predisposing factors. this case report describes destructive wound myiasis in a 58-year-old male patient diagnosed with maxillary sinus squamous cell carcinoma who lives in a rural are...

context viral hepatitis and the consumption of alcohol are recognized as important reasons for the development of liver disease throughout the world. it would also seem that chronic alcoholism causes more severe and rapid progression of liver disease in patients with chronic hepatitis c, leading to more frequent liver cirrhosis and hepatocellular carcinoma. evidence acquisition the data for thi...

background: telomerase activity increases in cancer cells. bcl-2 is an antiapoptotic factor that its concentration grows in many cancer cells including hepatocellular carcinoma cells. in this study, an attempt was made to investigate the effects of a new synthetic compound, platinum azidothymidine (pt-azt) on treatment of rats with hepatocellular carcinoma (hcc) and to compare its effects with ...

this report is related to a female 7-year-old crossbreed sheep whose right eye had been protruded andswelling of upper eyelid was observed. routine enucleating was performed. histopathological evaluation ofeyelid revealed coincidence of two kinds of neoplasms. the first part was composed of multiple lobules ofsebocytes, which were detected as meibomian adenoma. the second section included infil...