Hereditary sensory and autonomic neuropathy (HSAN) IV is a rare autosomal recessive disorder which is characterized by a decrease in the number of myelinated and non-myelinated nerve fibers of peripheral nerves which causes diminished or absent pain sensation leading to increase in self-mutilative habits. A retrospective study of eight cases ranging from age group of 4 to 17 years for oral and digital signs and symptoms is presented. All the patients showed congenital insensitivity to pain and anhidrosis. Oral self-mutilations, such as autoextraction of teeth and severe bite injuries (with resultant scarring) of the finger tips and oral soft tissues (tongue, lip, and buccal mucosa) were found in most patients. Our study suggests that early diagnosis and specific treatment plan are important for prevention of characteristic of the oral as well as digital trauma associated with this disorder.

Orofacial granulomatosis comprises a group of diseases characterized by noncaseating granulomatous inflammation affecting the soft tissues of the oral and maxillofacial region. The most common clinical presentation is persistent swelling of one or both lips. It is important to establish the diagnosis accurately because this condition is sometimes a manifestation of Crohn's disease or sarcoidosis. This article describes a case of orofacial granulomatosis.