Background: Lymphangiomas are benign malformations of lymphatic system uncommon in adults. We present a rare case of adult cystic lymphangioma in the neck region.Case presentation: A 26 year old female presented with a large swelling on the right side of the neck. The patient was uncomfortable due to the cosmetic impact of the swelling. Clinical diagnosis of cystic lymphangioma was made based on history and physical examination. An impression of lymphangioma was given on FNAC and radiological examination. The cyst is surgically removed by raising a skin flap and the cyst wall specimen was sent for histopathological examination for confirmation. The histopathological sections confirmed the diagnosis. The postoperative period is uneventful. There was no recurrence till the current follow up.Conclusions: In a case of painless and progressive neck swelling, lymphangioma should be considered as a differential diagnosis despite the fact that they occur rarely in adults and appropriate treatment should be initiated to prevent pressure symptoms due to the progressive nature.

Background: Lymphangiomas are benign malformations of lymphatic system uncommon in adults. We present a case of adult cystic lymphangioma in the neck region. Case presentation: A 26 year old female presented with a large swelling on the right side of the neck. The patient was uncomfortable cosmetically. Clinical diagnosis of cystic lymphangioma was made based on history and physical examination. An impression of lymphangioma was given on FNAC and radiological examination. The cyst is surgically removed by raising a skin flap and the cyst wall specimen was sent for histopathological examination for confirmation. The histopathological sections confirmed the diagnosis. The postoperative period is uneventful. There was no recurrence till the current follow up. Conclusion: In a case of painless and progressive neck swelling, lymphangioma should be considered as a differential diagnosis despite the fact that they occur rarely in adults and appropriate treatment should be started as soon as possible to prevent pressure symptoms due to the progressive growth.