Oral Mucositis
Pronunciation: myoo-koh-SY-tis
Painful inflammation and ulceration of the mucous membranes lining the mouth, most commonly documented as a complication of chemotherapy or radiotherapy in oncology dental assessments.
Full Definition
Oral mucositis is a clinically significant and often dose-limiting side effect of cancer treatment, characterised by erythema, ulceration, and pain across the oral mucosa. In dental documentation it is graded using tools such as the WHO Oral Toxicity Scale or the National Cancer Institute Common Terminology Criteria. Editors must distinguish oral mucositis from aphthous stomatitis (recurrent ulcers of non-oncological origin) and from oral candidiasis, which may co-present. The condition is documented in oncology dental screening forms, supportive care protocols, and multidisciplinary team meeting records. British English uses 'mucositis' without the American variant 'mucousitis'; editors should standardise accordingly.
Usage
Usage note: The preferred spelling is 'mucositis', not 'mucousitis'. When specifying aetiology, qualify as 'chemotherapy-induced oral mucositis' or 'radiation-induced oral mucositis'. Do not conflate with aphthous ulceration.
In Context
- "The oncology dental team recorded grade 3 oral mucositis following the patient's third cycle of chemotherapy, necessitating a temporary pause in treatment." — Oncology dental assessment form
- "Preventive dental measures to reduce the severity of oral mucositis were outlined in the patient's pre-radiotherapy dental clearance letter." — Multidisciplinary pre-treatment dental referral