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Persistent otorrhoea is a common issue for both children and adults, which can be caused by leakage of cerebrospinal fluid from the lateral skull base. Bacterial superinfection of the chronically humid middle ear, arising from continuous cerebrospinal fluid leakage, may contribute to an atypical clinical presentation. That is, otogenous cerebrospinal fluid leakage may mimic serious otitis media with concomitant conductive hearing loss, leading to a serious diagnostic delay in some patients. On the basis of three cases with cerebrospinal fluid leakage, resulting in persistent otorrhoea, we underline the importance of its timely diagnosis and treatment.

A 35-year-old woman developed acute swallowing problems caused by a big oral blood blister after eating nuts. The blister ruptured 32 hours later and healed without scarring. 'Angina bullosa haemorrhagica' was diagnosed after ruling out bleeding disorders.