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Imaging of the Head and Neck following Radiation Treatment.

Debnam JM - Patholog Res Int (2011)

Bottom Line: Squamous cell carcinoma of the head and neck occurs in approximately 40,000 patients annually in the United States and is often treated with radiation therapy.Radiological studies are obtained following treatment for head and neck malignancies to assess for recurrent tumor, posttreatment changes, and associated complications.As post-treatment imaging studies are often discussed at radiology/pathology working conferences, knowledge of the imaging appearance of radiation-associated changes in the head and neck and the terminology used by neuroradiologists may not only aid in interpretation of the pathologic specimen, but also assist in communications with neuroradiologists and referring clinicians.

View Article: PubMed Central - PubMed

Affiliation: Section of Neuroradiology, Department of Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA.

ABSTRACT
Squamous cell carcinoma of the head and neck occurs in approximately 40,000 patients annually in the United States and is often treated with radiation therapy. Radiological studies are obtained following treatment for head and neck malignancies to assess for recurrent tumor, posttreatment changes, and associated complications. Radiation treatment creates a difficult clinical picture for oncologists, head and neck surgeons, neuroradiologists, and neuropathologists. As post-treatment imaging studies are often discussed at radiology/pathology working conferences, knowledge of the imaging appearance of radiation-associated changes in the head and neck and the terminology used by neuroradiologists may not only aid in interpretation of the pathologic specimen, but also assist in communications with neuroradiologists and referring clinicians.

No MeSH data available.


Related in: MedlinePlus

Mandibular osteoradionecrosis: (a) Axial contrast-enhanced CT of the mandible (bone window) shows destruction of the mandible, including along the lingual cortex and loss of the normal trabecular pattern (arrow). (b) Axial contrast-enhanced CT (soft tissue window) shows no evidence of an enhancing soft tissue mass. Linear enhancement (arrow) represents mucositis.
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fig2: Mandibular osteoradionecrosis: (a) Axial contrast-enhanced CT of the mandible (bone window) shows destruction of the mandible, including along the lingual cortex and loss of the normal trabecular pattern (arrow). (b) Axial contrast-enhanced CT (soft tissue window) shows no evidence of an enhancing soft tissue mass. Linear enhancement (arrow) represents mucositis.

Mentions: The clinical diagnosis of mandibular osteoradionecrosis is based on symptoms and signs of ulceration or necrosis of the overlying mucous membrane with exposure of necrotic bone [21]. Since a soft-tissue abnormality may be misinterpreted as tumor recurrence, correlation should be made with the typical osseous findings of mandibular osteoradionecrosis on CT scans. These include cortical disruption, disorganization of trabeculation, and osseous fragmentation [22] (Figure 2). Chong et al. [23] demonstrated that enhancement can occur in the soft tissues adjacent to osteoradionecrosis; however, identifying the aforementioned signs of osteoradionecrosis can lead to the correct diagnosis. Associated with osteoradionecrosis of the mandible may also be diffuse enhancement of the adjacent masseter and pterygoid muscles, and this should not be confused with tumor [23].


Imaging of the Head and Neck following Radiation Treatment.

Debnam JM - Patholog Res Int (2011)

Mandibular osteoradionecrosis: (a) Axial contrast-enhanced CT of the mandible (bone window) shows destruction of the mandible, including along the lingual cortex and loss of the normal trabecular pattern (arrow). (b) Axial contrast-enhanced CT (soft tissue window) shows no evidence of an enhancing soft tissue mass. Linear enhancement (arrow) represents mucositis.
© Copyright Policy - open-access
Related In: Results  -  Collection

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getmorefigures.php?uid=PMC3108502&req=5

fig2: Mandibular osteoradionecrosis: (a) Axial contrast-enhanced CT of the mandible (bone window) shows destruction of the mandible, including along the lingual cortex and loss of the normal trabecular pattern (arrow). (b) Axial contrast-enhanced CT (soft tissue window) shows no evidence of an enhancing soft tissue mass. Linear enhancement (arrow) represents mucositis.
Mentions: The clinical diagnosis of mandibular osteoradionecrosis is based on symptoms and signs of ulceration or necrosis of the overlying mucous membrane with exposure of necrotic bone [21]. Since a soft-tissue abnormality may be misinterpreted as tumor recurrence, correlation should be made with the typical osseous findings of mandibular osteoradionecrosis on CT scans. These include cortical disruption, disorganization of trabeculation, and osseous fragmentation [22] (Figure 2). Chong et al. [23] demonstrated that enhancement can occur in the soft tissues adjacent to osteoradionecrosis; however, identifying the aforementioned signs of osteoradionecrosis can lead to the correct diagnosis. Associated with osteoradionecrosis of the mandible may also be diffuse enhancement of the adjacent masseter and pterygoid muscles, and this should not be confused with tumor [23].

Bottom Line: Squamous cell carcinoma of the head and neck occurs in approximately 40,000 patients annually in the United States and is often treated with radiation therapy.Radiological studies are obtained following treatment for head and neck malignancies to assess for recurrent tumor, posttreatment changes, and associated complications.As post-treatment imaging studies are often discussed at radiology/pathology working conferences, knowledge of the imaging appearance of radiation-associated changes in the head and neck and the terminology used by neuroradiologists may not only aid in interpretation of the pathologic specimen, but also assist in communications with neuroradiologists and referring clinicians.

View Article: PubMed Central - PubMed

Affiliation: Section of Neuroradiology, Department of Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA.

ABSTRACT
Squamous cell carcinoma of the head and neck occurs in approximately 40,000 patients annually in the United States and is often treated with radiation therapy. Radiological studies are obtained following treatment for head and neck malignancies to assess for recurrent tumor, posttreatment changes, and associated complications. Radiation treatment creates a difficult clinical picture for oncologists, head and neck surgeons, neuroradiologists, and neuropathologists. As post-treatment imaging studies are often discussed at radiology/pathology working conferences, knowledge of the imaging appearance of radiation-associated changes in the head and neck and the terminology used by neuroradiologists may not only aid in interpretation of the pathologic specimen, but also assist in communications with neuroradiologists and referring clinicians.

No MeSH data available.


Related in: MedlinePlus