Tissue-expander.
A tissue-expander is an elastic material formed into a sac that is then filled with fluid or air so it expands like a balloon. The expander is placed under the skin and is filled, stretching the skin.
Expanders are most often used to prepare a site for a permanent implant.
Expanders are also used to assist in the repair of scars and the removal of tattoos by stretching the skin, removing the expander, removing the scar or tattoo, and suturing the skin edges together.
Myxomatous is the medical term meaning pertaining to a tumor filled with mucus.
Neoplasm is the medical term meaning tumor; a neoplasm can be malignant (cancerous) or benign.
'vesicles' IS the medical term for small fluid-filled sacs or cysts, such as a blister.
The medical term for a cyst in the epididymis filled with milk fluid containing sperm is a spermatocele.
The placenta.
A bursa.
The ventricles are the fluid-filled cavities of the brain.
ganglionganglion cyst
Because the elastic stretches too far and the elastic snaps causing the whole balloon to pop
The common term for a raised bump on the epidermis filled with a watery fluid is a blister. In medical terms, a small blister is a vesicle, while a large blister is a bulla.
The medical term is "paranasal sinuses." These are air-filled cavities located within the bones surrounding the nasal cavity. They are important for natural drainage and humidifying the air we breathe.
I. M. Rapoport has written: 'Dynamics of elastic containers partially filled with liquid' -- subject(s): Dynamics, Elastic solids