There are cases of skeletal developmental features that have high identification significance for the search of missing person in forensic medical practice of skeletal remains examination. The features of the skull’s anatomical structure may indicate the presence of some clinical syndromes, for which a person could have sought medical attention in the lifetime. In the described case, elongated styloid appendages of the temporal bones were identified on the skull of an unknown person found within the territory of the Leningrad region, which could be a sign of the stylohyoid syndrome (Eagle syndrome). Various clinical picture could be observed depending on the size and degree of styloid processes. The objective of the forensic medical expert was to establish the probability of occurrence of the stylohyoid syndrome and its possible clinical signs.