Neoplasm of salivary glands constitutes about 3% of all tumours of head and neck. Within the category we can differentiate tumours of a very different histological structure. What lies behind such great differences in the changes within the salivary glands is complex embryogenesis of the glands. About 80% of all tumours of salivary glands is located in parotid gland, from 10 to 20% - in submand...

myxofibrosarcoma is a malignant neoplasm of connective tissue origin commonly found in the extremities. it is very rare in the head and neck regions. only 25 cases of myxofibrosarcoma have been reported in the head and neck regions until 2014. here we report a 61-year-old male with this neoplasm in the lower border of his mandible. during a two-year follow-up, this case recurred four times desp...

Adenoid cystic carcinoma is a rare malignant neoplasm of the salivary gland. Salivary gland neoplasms constitute 3% cancers all sites, which, 10–15% are malignant. Though adenoid most common tumor submandibular, sublingual and minor glands, it accounts for only 15% parotid cancers. They generally slow-growing spread relentlessly to adjacent structures. Hematogenous more than lymphatic spread, s...

abstract background cerebral neoplasm arises from brain, spinal cord and meningeal cells. not only malignant cerebral neoplasm also benign tumor could lead to death due to mass effect on vital structures. access to these tumors is difficult, and mri and ct scan could be helpful in determining anatomical location of tumors and distinction of malignant from benign. objective for better and earlie...

Owing to recent advances in diagnostic and surgical techniques for cancer, a patient diagnosed with two or more neoplasms is not rare. We report on the case of a 58-year-old male with multiple primary malignant neoplasms, who suffered from three histological types of malignant neoplasm in six organs, namely the glottis, renal pelvis, urinary bladder, oral floor, prostate, and esophagus in chron...

Background: Neck mass is one of the most common clinical findings in all age groups. Differential diagnosis of masses includes a range of pathologies from congenital to infectious or neoplasm. Understanding the risk factors of neck masses can help us to assess them properly. The purpose of this study is to obtain the epidemiological and clinical features of different neck masses in Kerman, Iran...

calcifying odontogenic cyst (coc) is a unique odontogenic lesion with combined features of a cyst and neoplasm.  this lesion shows a great diversity in its clinicopathological behavior.  it may become aggressive and rarely malignant.  this case is an aggressive coc of the maxilla in a young male patient which recurred after several radical surgical excisions.  eventually invading the cranium, t...