Post-treatment imaging appearances in head and neck cancer patients

Postoperative Imaging and Surveillance in Large Nerve Perineural Spread

“…There may also be foci of hemorrhage or susceptibility artifact within the involved regions. 17 Review of the radiation fields is helpful to confirm that the area of abnormality lies within the planned target volume, and therefore is consistent with radiation necrosis rather than a primary brain neoplasm or metastasis.…”

Differentiation of Recurrent Tumor and Posttreatment Changes in Head and Neck Squamous Cell Carcinoma: Application of High b-Value Diffusion-Weighted Imaging

“…These posttreatment changes can mimic tumor recurrence, and sometimes it is difficult to distinguish these from residual or recurrent tumor on CT or MR images. [3][4][5] DWI is based on the Brownian motion of water protons in the tissue, which is affected by the microstructure of tissue. 6 Several previous studies support the value of applying DWI in head and neck cancer for the differentiation and characterization of primary tumor, nodal staging, and the prediction of treatment response.…”

Free gracilis muscle transfer for smile reanimation after treatment for advanced parotid malignancy

“…Concern over the risk of residual or recurrent disease may lead to unnecessary postponement of facial reanimation, subjecting patients to years of deformity with profound functional, aesthetic, and communicative sequelae . Current treatment of advanced parotid malignancies may result in prolonged disease‐free survival or cure, and reconstructive procedures do not impair adequate surveillance of tumor recurrence …”