♦Corresponding Author: Zhila Torabizadeh, MD Department of Pathology, Imam Khomeini Hospital, Mazandaran University of Medical Sciences, Sari, Iran Tel: 09111513073, 01133300109 Email: [email protected] Introduction Colorectal cancer (CRC) is one of the most common malignancies worldwide. According to the Ministry of Health and Medical Education of Iran, CRC is the third most common cancer in ...

The responsiveness of SENCAR mouse skin to 20 different chemicals with known carcinogenic properties was assessed in initiation/promotion experiments. The purpose of these experiments was to evaluate the extent of false negative responses in mouse skin initiation/promotion protocols and to determine the extent to which early papilloma development can be used to predict the eventual development ...

Inverted papilloma is a benign locally aggressive tumor of paranasal sinuses which has been traditionally managed with external surgical approaches. Advances in tumor imaging, surgical instrumentation and intraoperative visualization have led to a gradual shift to endonasal attachment-oriented surgery. Involvement of both frontal sinuses by inverted papilloma is rare. There are scant reports in...

Inverted papilloma of the urinary bladder is rare. In the paediatric group, this condition is even more rare. To date only five cases have been reported in the English literature. Due to its rarity, the morphology and biological behaviour are still uncertain. We report a case of inverted papilloma of the urinary bladder in a 12-year-old girl who presented with recurrent haematuria. The patient’...

A 31-year-old Black man presented with two oval masses in his right conjunctiva. The tumors were completely excised and histology showed that the inferior lesion was a conjunctival squamous papilloma with pigmentation while the superior one was an inverted conjunctival papilloma, which grew in an endophytic manner. Follow up examination one year later showed no recurrence. Literature search rev...