Modified incision design for submental flap: an excellent design method for the reconstruction of a defect after head and neck tumor resection.

Background: The usage of submental flap is a good method for head and neck reconstruction, but it has some risk also, such as anatomical variations and surgical errors. In this article, we present a modified incision design for the submental flap.

Methods: We designed a modified submental flap incision method based on the overlap of the incision outline of the submental flap, platysma myocutaneous flap and infrahyoid myocutaneous flap.

The versatile application of cervicofacial and cervicothoracic rotation flaps in head and neck surgery.

Background: The large defects resulting from head and neck tumour surgeries present a reconstructive challenge to surgeons. Although numerous methods can be used, they all have their own limitations. In this paper, we present our experience with cervicofacial and cervicothoracic rotation flaps to help expand the awareness and application of this useful system of flaps.

[Functional reconstruction of total lower lip defect with mental neurovascular V-Y advancement island flap.].

Objective: To introduce a method of functional reconstruction for total lower lip defects.

Methods: Six patients with lower lip cancer were treated by surgery from November 2007 to February 2009. The full thickness defects with a size from eighty percent to total lower lip were reconstructed with two triangular mental neurovascular island flaps of chin.

[Inhibition effect of glycyrrhizin on transplanted mandibular gland fibrosarcoma of mice].

Objective: To study glycyrrhizin's anticancer effect and its mechanism.

Methods: 3-methylcholanthrene were injected into mice's submandibular glands to induce tumor, then transplanted the tumor pieces (1 mm3) to mice. The transplanted tumors were measured, and flow cytometry analysis and cytomorphology observation were conducted.