To acquaint the radiologists with various head and neck squamous cell carcinoma (HNSCC) surgeries and their imaging appearances so that they are better equipped to interpret post operative scans. To familiarize the radiologists with the expected temporal evolution of post radiotherapy (RT)/chemoradiotherapy (CRT) changes in HNSCC on imaging so that they are not mistaken for recurrence. To make the radiologists aware of the imaging appearances of various complications after surgery and RT so that they are well communicated to the surgeons/clinicians. To depict post neoadjuvant...

HNSCC management includes radical surgery alone or with reconstruction using muscular or free flaps, neck dissection, definitive or adjuvant RT/CRT. Use of NACT is reserved for borderline unresectable cases depending upon institutional preference. Altered anatomy post-surgery pose diagnostic challenge to the radiologist interpreting post operative scans, hence the need for awareness regarding various HNSCC surgeries and their imaging appearances. Knowledge of expected/biologic changes after RT is essential to differentiate them from recurrence on imaging. Early identification and communication of post operative and post RT complications...

A. Types of HNSCC surgeries Types of glossectomies [Figure 1] Partial glossectomy: Lesion along with adjacent normal mucosa, submucosa, and intrinsic muscles up to the surface of the extrinsic muscles ipsilateral to the lesion, are removed. [1] Hemiglossectomy: Mucosa, submucosa, intrinsic, and extrinsic muscles ipsilateral to the lesion are removed with preserved base of tongue. [1] Compartmental hemiglossectomy: Mucosa, submucosa, intrinsic and extrinsic muscles ipsilateral to the lesion, genioglossus, hyoglossus and styloglossus muscles, and the inferior portion of the palatoglossus muscle are removed along with...

In this educational exhibit, I have depicted various surgical procedures, expected posttreatment changes and complications in head and neck carcinomas through images, which I believe will boost the confidence of radiologists in interpreting posttreatment head and neck scans. In addition, using case based approach, I have demonstrated proper reporting of posttreatment head and neck scans using NI-RADS, for the benefit of radiologists.

N. Chakrabarty: Nothing to disclose

Figure 18.