abstract background: abdominal tumors are still a diagnostic problem in children. this study was conducted to assess the presentation and types of childhood intra abdominal tumors in children in shiraz. materials and methods: participants of this historical cohort study consisted of 298 children aged between 1.5 months to 15 years old who were diagnosed with abdominal mass between march 2003 an...

AIMS Granular cell tumor (GCT) is a rare neoplasm that can appear in any site of the body, but most are located intraorally. Its histogenetic origin remains unclear. This report analyzes the immunoprofile of 15 cases of granular cell tumors, occurring in 13 women and 2 men and the lesions were located on the tongue or upper lip. Patient age ranged from 7 to 52. METHODS The patients demographi...

Background and Objectives: Squamous cell carcinoma of the tongue (SCCOT) is the most common malignant neoplasm in oral cavity. At the time of the diagnosis of SCCOT regional metastases with a high mortality rate are common, which is due to the extensive lymphatic system drainage of the tongue. Although the level of healthcare has significantly improved, the survival rate is still low with an un...

Tongue squamous cell carcinoma (TSCC) is an aggressive neoplasm which typically spreads through invasive growth with serious morbidity and mortality. Previous studies suggested that the expression of LRIG1 functions as the vital suppressor gene in various human cancer types by inhibiting invasion and proliferation. However, little is known about the downstream genes coordinating this process in...

Hepatitis C virus (HCV) infection induces not only chronic liver disease, but also extrahepatic manifestations such as thyroid disease and oral cancer. Thyroid dysfunction is also a complication known to be associated with interferon (IFN) therapy for HCV infection. We report on a 69-year-old Japanese man who developed Graves' ophthalmopathy and tongue cancer (malignant transformation of leukop...

Canine T-zone lymphoma (TZL) is a subtype of T-cell lymphoma characterized by unique histologic pattern and cytomorphology, immunophenotypic loss of CD45 expression, and an indolent clinical behaviour. Dogs with TZL typically present with 1 or more enlarged lymph nodes and/or lymphocytosis. We describe a novel extranodal presentation of TZL involving the tongue. Twelve dogs with tongue masses w...

A small subset of cells within a malignant neoplasm, named cancer stem cells (CSCs) or tumour initiating cells, are thought to be capable of initiating the neoplasm itself, and of driving its growth and recurrence after treatment. It is unclear whether CSCs can be identified and experimentally induced within oral squamous cell carcinoma (OSCC), although this has been reported for a number of ot...

Malignant mesothelioma predominantly arises from the serosal surfaces of the pleural or peritoneal cavity. There is currently no effective standard treatment for mesothelioma and the prognosis for patients is poor; the majority of patients with malignant mesothelioma succumb between 12 and 17 months following diagnosis. The association of all forms of malignant mesothelioma with asbestos exposu...

Adenoid cystic carcinoma is the most frequent malignant neoplasm of minor salivary glands (76.5%); it is clinically characterized by slow growth, and its most frequent localization is the hard palate. Histopathologically it presents three patterns, cribriform, tubular and solid; the solid type is related to a poor prognostic contrary to the cribriform type, which has a better prognosis. Surgica...