What is a circumscribed mass?
What is a circumscribed mass?
A circumscribed mass is a mass with margins demonstrating a sharp demarcation between the lesion and surrounding tissue. On mammography, at least 75% of the margin must be well defined in order for the mass to qualify as circumscribed.
Is anechoic cyst of the breast?
Simple cysts are defined as anechoic, well-circumscribed, round or ovoid masses with an imperceptible wall and increased through-transmission of sound waves. When all the criteria of simple breast cysts are present, they are considered benign and do not require intervention.
Are circumscribed masses usually benign?
Circumscribed oval and round masses are usually benign. An irregular shape suggests a greater likelihood of malignancy. The margins can be described as circumscribed, microlobulated, obscured (partially hidden by adjacent tissue), indistinct (ill-defined), or spiculated (characterized by lines radiating from the mass).
What is the difference between a cyst and a mass?
A cyst is a sac or capsule that’s filled with tissue, fluid, air, or other material. A tumor is usually a solid mass of tissue.
What is a anechoic cyst?
Anechoic cyst: any cyst that absorbs sound waves produced by an ultrasound. Perianal or pilonidal cyst: a cyst usually containing skin debris usually located near the tailbone.
When should I be concerned about a breast cyst?
Normal breast tissue often feels lumpy or nodular. But if you feel a new breast lump that doesn’t go away, gets bigger or persists after one or two menstrual cycles, see your doctor right away. Also see your doctor if you have new skin changes on one or both of your breasts.
What are circumscribed margins?
As defined in the US lexicon (1), circumscribed margins are well defined or sharp, with an abrupt transition between the lesion and the surrounding tissue. Noncircumscribed margins encompass the remaining margin descriptors, including microlobulated, indistinct, angular, and spiculated.
What does sharply circumscribed mean?
1 having a keen edge suitable for cutting. 2 having an edge or point; not rounded or blunt. 3 involving a sudden change, esp. in direction. a sharp bend.