Oral Squamous Cell Carcinoma Is Associated with a Low Thrombosis Risk Due to Storage Pool Deficiency in Platelets

Venous thrombo-embolism (VTE) disease is the second most common cause of mortality in cancer patients, and evaluation and prevention of thrombosis risk is essential. VTE-associated risk varies according to the type of tumor disease. Oral cancer is the most frequent type of head and neck cancer, and it represents approximately 2.1% of all cancers worldwide. Most tumors are squamous cell carcinomas and are mainly due to tobacco and alcohol abuse. VTE risk associated with oral squamous cell carcinoma (OSCC) is low. However, many studies have shown that OSCC has the following biological features of cancers associated with a high thrombosis risk: modified thrombosis and fibrinolysis mechanisms; strong expression of procoagulant proteins; secretion of procoagulant microparticles; and production of procoagulant cytokines. Using an original mouse model of tongue squamous cell carcinoma, our study aimed to clarify this paradoxical situation. First, we showed that OSCC tumors have a pro-aggregatory phenotype and a high local thrombosis risk. Second, we found that tongue tumor mice do not have an elevated systemic thrombosis risk (the risk of an “at distance” thrombosis event such as lower extremity deep venous thrombosis or pulmonary embolism) and even show a reduction in risk. Third, we demonstrated that tongue tumor mice show a reduction in platelet reactivity, which explains the low systemic thrombosis risk. Finally, we found that tongue tumor mice present granule pool deficiency, thereby explaining the reduction in platelet reactivity and systemic thrombosis risk.

The First Pull-through Approach to a Tongue Tumor by Giorgio Regnoli in 1838

The aim of this article is to describe the first report of a “pull-through” submental approach for excision of a tongue tumor, performed by Giorgio Regnoli in 1838 on a 14-year-old girl affected by a huge swelling of the tongue, which obstructed the upper airway and hindered swallowing and speech. Regnoli made a midline submental incision, divided the mylohyoid muscle and the oral mucosa, and entered the floor of the mouth. The tongue was pulled into the neck through the newly created opening, and the tumor was circumscribed by thread loops to prevent bleeding and was excised. Then the tongue stump was repositioned in the oral cavity. The skin margins were approximated by bandages. Despite limited armamentarium, the operation was successful. The described approach, subsequently named “pull-through,” is still utilized nowadays for selected cases of tongue neoplasms when mandibular splitting is not required.