No abstract

Hydatid cyst is a parasitic cyst caused by the tapeworm Echinococcus that occurs primarily in sheep grazing areas worldwide. It is a chronic disease, and the cysts can be localized in unusual anatomical and geographic locations. It is known to affect the head and neck region. Patients must undergo a thorough systemic investigation as 20–30% show multiorgan involvement. We report a case of hydatid cyst occurring in the buccal mucosa of a 45- year -old male presenting as a small asymptomatic lump and emphasize on its rarity and diagnostic issues.

Lesions of the lip that are smooth, spherical, and with same color of the oral mucosa are often diagnosed as traumatic fibromas, or focal fibrous hyperplasia, and mucoceles. Although tumors of the peripheral nerve sheath are uncommon, they must also be included in the list of differential diagnoses of lesions that are nodular involving lower lip. We present a case of a 45 year old male patient who visited our hospital for routine dental examination. On examination a soft swelling was noted on left vermilion border of lower lip extending on to  labial mucosa  measuring about 0.5 * 0.5 cm .A provisional diagnosis of mucocele was given.On histopathological examination, a well circumscribed and partially encapsulated  connective tissue was seen with centrally placed axons surrounded by short interlacing fascicles of palisading spindle shaped cells .