ANAMNESIS / SYMPTOMS:
A 38 year old patient who underwent resection and following radiochemotherapie because of a carcinoma of the floor of the mouth on the right side two years ago now complains about right sided pain of the right ventral part of the oral diaphragm.


FINDINGS:
On a cross section of the oral diaphragm the mandible, the digastric muscles and the hypoechoic structures of the mylohyoid muscles of both sides are visualized. Lying on these structures the geniohyoid muscle is visible. On the right side a clearly hyperechoic reflection with streaky extensions and an unregular echo pattern is visible.


DIAGNOSIS:
The patient is suspected of having a radiation-induced ulcer of the right floor of the mouth. The hyperechoic reflections indicate the border between tissue and air. On the left side this border between the underside of the tongue and the floor of the mouth is visualized as a hypoechoic reflection compared to the right side



Informations on the internet:

1) Medecoinfo
2) Krebsinfo