Spontaneous Oral Mucosal Bleeding Unmasking Undiagnosed Sarcoidosis: A Case Report.

Sarcoidosis is a multisystem, non-caseating, chronic, granulomatous disease affecting any organ. In the head and neck region, salivary glands and lymph nodes are most commonly involved. Oral manifestations are rare but these lesions, occasionally haemorrhagic, may be the first sign of systemic disease. It is important to recognize the oral manifestations of sarcoidosis and to be aware of potential secondary disease-driven processes, such as thrombocytopenia. The purpose of this paper is to present a previously undiagnosed case of sarcoidosis, initially presenting with oral manifestations, including mucosal bleeding, and to review the current literature on oral sarcoidosis. Clinical relevance: Oral lesions can be the first sign of undiagnosed systemic sarcoidosis.