Intraosseous mucoepidermoid carcinoma is a rare tumor which affects women more than men and is more common in the mandible. The radiological examination reveals a well-defined unilocular or multilocular radiolucent lesion. This tumor may resemble a glandular odontogenic cyst, particularly in incisional biopsies. The accurate diagnosis of these lesions is imperative because the subsequent treatm...

Clear cell variant of mucoepidermoid carcinoma of the salivary glands is rare. A 55-year-old male patient with recently growing left parotid mass underwent superficial parotidectomy. Although the dominant component of the tumor was composed of clear cells, mucin containing cells were also present. Histochemically, alcian blue stain supported intracellular mucin positivity. I...

Primary intraosseous mucoepidermoid carcinoma (PIOC) is an infrequent malignancy of the head and neck that exhibits diverse biological behavior. The rareness of the location for a salivary gland tumor and the clinical and radiographic manifestations, suggestive of an odontogenic lesion often pose a diagnostic challenge. We hereby report such a unique case of central mucoepidermoid carcinoma tha...

The mucoepidermoid carcinoma is a neoplasia that usually occurs at salivary glands, breast, pancreas and gastrointestinal tract. The primary occurrence on thyroid gland is rare and only 33 cases were previously published. Although the majority of cases of mucoepidermoid carcinoma of the thyroid (MECT) show a benign evolution, this paper describes a patient with an aggressive tumor. A literature...

background and aims. mast cells are one of the characteristic factors in angiogenesis, growth, and metastatic spread of tumors. the distribution and significance of mast cells in many tumors have been demonstrated. however, few studies have evaluated mast cell infiltration in salivary gland tumors. in this study, mast cell counts were evaluated in benign and malignant salivary gland tumors. mat...

Mucoepidermoid carcinoma (MEC) of the salivary gland is a rare entity. A distinction of 2 variants has been proposed: the low-grade tumor with a favourable prognosis and the high-grade tumor with a poor prognosis. Indeed, MEC is a cancer with a relative favourable outcome and more than 90% of patients survive for more than 5 years after diagnosis, reduced to about 70% after 10 years. This excel...

mucoepidermoid carcinoma of the pancreas is rare. here, a 63-year-old woman with left upper abdominal pain and abdominal distension is presented. her mucoepidermoid carcinoma was located at the left upper abdomen, arising from the pancreatic body and tail without invasion of pancreatic capsule. on pathologic examination, the tumor consisted of three types of cells, the majority being poorly dif...

mucoepidermoid carcinoma is a neoplasm of salivary gland origin, and its laryngeal occurrence is extremely rare. this malignant tumor is composed of two distinct cell types, the epidermoid and mucus cells. prognosis is largely dependent on the histologic pattern. in this report, an extremely rare laryngeal cancer and its clinicopathologic features are described.

Parathyroid hormone-related protein (PTHrP) is known to induce bone resorption by activating RANKL as well as PTH. PTHrP plays a central role in humoral hypercalcemia, and its expression has been reported to be closely associated with bone metastasis of breast carcinoma. PTHrP expression in oral squamous carcinoma cell lines was investigated, and PTHrP was expressed in oral squamous cell carcin...