Cavernous hemangioma is a type of blood vessel malformation where a collection of dilated blood vessels forms a benign tumour. Cavernous heamangiomas can arise nearly anywhere in the body where there are blood vessel and unlike the capillary hemangiomas, cavernous ones can be disfuguring and donot tend to regress. Most common site for cavernous hemangioms are brain, liver , eye and here we are eliciting a rare site presentation in right side of neck.The patient Dipika Saikia, 19 year old female came with a gradually progressive neck swelling in the posterior triangle of neck which is soft in consistency and mobile. Basic investigation, FNAC and radiological imaging carried out and differential diagnosis came as atypical hemangioma or hypervascular nerve sheath tumour. Patient had undergone surgery in our department and mass was exciced from the right side of the neck in between levator scapulae and trapezius extending from apex of the posterior triangle to suprascapular region. Post–operative biopsy came as cavernous hemangioma.