Sublingual hydatid cyst: case report and literature review.
OBJECTIVE
To demonstrate the importance of detailed clinical analysis in the differential diagnosis of a cyst in the floor of the mouth, and to provide an update on current knowledge and treatment of sublingual hydatid cyst.


METHODS
A 23-year-old man presented complaining of a swelling in the midline of the sublingual region, present for four months and progressively increasing in size. Ultrasonography of the neck revealed a well defined, hypoechoic lesion in the sublingual region, containing a calcific focus. Fine needle aspiration cytology showed numerous round to oval structures resembling brood capsules, with scolices and occasional hooklets. T1- and T2-weighted, multiplanar magnetic resonance imaging scans showed a well defined, multiloculated lesion in the sublingual region.


CONCLUSIONS
Hydatid disease may present as a slow-growing cyst in the sublingual region. Aspiration cytology should preferably be avoided until radiological imaging studies are complete. A high index of suspicion is necessary to diagnose hydatid disease in an unusual location.
Jumani
K T
KT
Department of Otorhinolaryngology, St John's Medical College and Hospital, St John's National Academy of Health Sciences, Bangalore, India. kiranjumani@gmail.com
Ananthamurthy
A
A
Joy
B
B
Nayar
R C
RC
D003937:Diagnosis, Differential; D004443:Echinococcosis / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D009059:Mouth Diseases / Q000000981:diagnostic imaging / Q000473:pathology*; D009060:Mouth Floor / Q000000981:diagnostic imaging / Q000473:pathology; D014463:Ultrasonography; D055815:Young Adult