BOC-CMF study materials
BOC-CMF study resources

BOC-CMF key terms

BOC-CMF · Get comfortable with the vocabulary.

Mastectomy

Surgical removal of all or part of a breast, performed to treat or prevent breast cancer. The extent of tissue removed determines the shape, scarring, and fitting needs of the chest wall afterward.

Related: Modified Radical Mastectomy, Lumpectomy, Seroma
Lumpectomy

Breast-conserving surgery that removes a tumor and a margin of surrounding tissue while leaving most of the breast intact. Fitting usually focuses on symmetry, partial prostheses, and scar protection rather than full-breast replacement.

Related: Mastectomy, Partial Breast Prosthesis, Radiation Dermatitis
Modified Radical Mastectomy

Removal of the entire breast along with axillary lymph nodes while preserving the pectoral muscles. The resulting chest wall contour is typically flat to slightly concave with a horizontal or diagonal scar.

Related: Mastectomy, Axillary Lymph Node Dissection, Lymphedema
Sentinel Lymph Node Biopsy

A procedure in which the first draining lymph node is identified and sampled to stage cancer spread. It causes less axillary trauma than full dissection, which affects lymphedema risk and how tightly a bra band can be fitted.

Related: Axillary Lymph Node Dissection, Lymphedema
Axillary Lymph Node Dissection

Surgical removal of multiple lymph nodes from the armpit to stage or treat cancer. It raises the risk of lymphedema and shoulder stiffness, so fitters avoid tight bands, straps, or compression over the affected side.

Related: Sentinel Lymph Node Biopsy, Lymphedema
Lymphedema

Swelling caused by buildup of lymph fluid, most often in an arm after lymph nodes are removed or irradiated. Fitters must measure the affected side carefully and avoid garments that compress or bind the swollen limb.

Related: Axillary Lymph Node Dissection, Radiation Fibrosis
Seroma

A collection of serous fluid under the skin at the surgical site, common after mastectomy. It can cause temporary swelling and tenderness, so fitting may be delayed or adjusted until it resolves.

Related: Mastectomy, Post-Surgical Compression Bra
Radiation Dermatitis

Skin irritation, redness, and sometimes peeling in the area treated with radiation. During active treatment the skin is fragile, so soft, seam-free, non-adherent garments are preferred and adhesives should be avoided.

Related: Radiation Fibrosis, Lumpectomy
Radiation Fibrosis

Thickening and stiffening of tissue after radiation therapy, which can change chest wall contour and reduce skin elasticity. Fitters account for a firm, less mobile chest wall when selecting prosthesis shape and pocket depth.

Related: Radiation Dermatitis, Lymphedema
Breast Prosthesis

An external form worn inside a bra to replace the shape and weight of a missing breast. Selection considers size, shape, profile, weight, skin sensitivity, and the contour of the chest wall.

Related: Silicone Prosthesis, Partial Breast Prosthesis, Weighted Prosthesis
Silicone Prosthesis

A breast form made of silicone gel that mimics the softness, drape, and weight of natural breast tissue. It is available in many shapes, profiles, and skin tones and is the most commonly fitted type.

Related: Breast Prosthesis, Prosthesis Profile, Weighted Prosthesis
Partial Breast Prosthesis

A smaller form designed to fill a localized defect after lumpectomy or breast-conserving surgery. It restores symmetry at the treatment site and is often worn with a pocketed bra or adhered directly to skin.

Related: Lumpectomy, Breast Prosthesis, Symmetry
Weighted Prosthesis

A breast form with added weight intended to improve balance and reduce shoulder or neck strain from asymmetry. Weight is chosen to approximate the remaining breast while remaining comfortable for daily wear.

Related: Breast Prosthesis, Silicone Prosthesis, Symmetry
Prosthesis Profile

The depth or projection of a breast form, described as shallow, average, or full. Profile is matched to the remaining breast and chest wall so the prosthesis sits naturally without gaping or flattening.

Related: Breast Prosthesis, Silicone Prosthesis
Symmetry

Balance in size, shape, and position between the two sides of the chest. Achieving symmetry is a central fitting goal and is assessed with the client standing, seated, and moving.

Related: Partial Breast Prosthesis, Weighted Prosthesis, Prosthesis Profile
Pocketed Bra

A bra with an inner fabric pouch that holds a breast form securely against the chest wall. Pockets keep the prosthesis from shifting and are available in mastectomy-specific and convertible styles.

Related: Mastectomy Bra, Breast Prosthesis, Bra Band
Mastectomy Bra

A bra designed for people after breast surgery, typically featuring pockets, soft seams, wider straps, and higher underarm coverage. It accommodates prostheses and avoids pressure on scars and sensitive tissue.

Related: Pocketed Bra, Bra Band, Post-Surgical Compression Bra
Post-Surgical Compression Bra

A soft, front-closing garment worn immediately after breast surgery to provide gentle compression, hold dressings, and reduce swelling. It is distinct from a prosthesis bra and is used before a prosthesis is fitted.

Related: Seroma, Mastectomy Bra, Mastectomy
Bra Band

The horizontal portion of a bra that encircles the rib cage and carries most of the garment's support. Correct band fit prevents riding up and avoids pressure on incisions or a lymphedema-prone side.

Related: Mastectomy Bra, Pocketed Bra, Lymphedema
Bra Cup Size

A letter designation describing the volume difference between the bust and underbust measurements. Cup size varies between manufacturers, so fit is confirmed by trying garments rather than by measurement alone.

Related: Bra Band, Underbust Measurement, Symmetry
Underbust Measurement

The circumference of the rib cage measured snugly directly beneath the breasts. It establishes the band size and provides a baseline for selecting prosthesis width and bra fit.

Related: Bra Band, Bra Cup Size
Prosthesis Adhesive

A skin-safe adhesive or attachment strip used to hold a breast form directly against the chest without a pocket. It requires intact, healthy skin and careful removal to avoid irritation.

Related: Breast Prosthesis, Radiation Dermatitis
Silicone Allergy

A rare sensitivity to silicone materials used in breast forms or adhesives. Fitters screen for redness, itching, or rash and may select alternative materials or pocketed bras instead of adhesive attachment.

Related: Prosthesis Adhesive, Silicone Prosthesis
Patient Confidentiality

The professional obligation to protect a client's health information from unauthorized disclosure. It applies to conversations, fitting notes, photographs, and any records shared with other providers.

Related: Protected Health Information, Informed Consent, Fitting Documentation
Protected Health Information

Individually identifiable health data held or transmitted by a covered entity, protected under privacy regulations. Fitters handle it only as permitted and store records securely.

Related: Patient Confidentiality, Fitting Documentation
Informed Consent

A client's voluntary agreement to a service after understanding its purpose, benefits, risks, and alternatives. It should be obtained before fitting, photography, or sharing information with third parties.

Related: Patient Confidentiality, Fitting Documentation
Fitting Documentation

The written record of a fitting encounter, including measurements, products selected, fit observations, and client education provided. Clear documentation supports continuity of care, billing, and quality review.

Related: Protected Health Information, Measurement Record, Informed Consent
Measurement Record

A structured log of body measurements, prosthesis specifications, and garment sizes taken during fitting. It allows comparison over time and helps verify that a delivered product matches what was ordered.

Related: Fitting Documentation, Underbust Measurement
Scope of Practice

The boundaries of services a fitter is trained and authorized to provide. It includes fitting and education but excludes diagnosing conditions or giving medical or treatment advice.

Related: Referral, Informed Consent
Referral

Directing a client to another qualified professional when a concern falls outside the fitter's scope. Examples include skin breakdown, new lumps, severe swelling, or persistent pain.

Related: Scope of Practice, Lymphedema
Insurance Verification

Confirming a client's coverage, eligibility, and documentation requirements before providing products. It clarifies cost sharing and which prescriptions or medical records are needed for reimbursement.

Related: Fitting Documentation, Letter of Medical Necessity
Letter of Medical Necessity

A provider's written statement explaining why a product or service is medically required. Payers often require it to support coverage of prostheses, bras, or related supplies.

Related: Insurance Verification, Fitting Documentation
Body Image

A person's perception of and feelings about their own appearance. Breast surgery can disrupt body image, so fitters listen empathetically and offer choices that support confidence and comfort.

Related: Psychosocial Adjustment, Breast Prosthesis
Psychosocial Adjustment

The emotional and social process of adapting after breast surgery and treatment. Fitters recognize distress, respond with sensitivity, and refer to counseling or support resources when appropriate.

Related: Body Image, Referral
Scar Management

Techniques and product choices that protect healing scars from friction, pressure, and sun exposure. Fitters avoid seams and adhesives over healing tissue and select soft, non-irritating materials.

Related: Radiation Dermatitis, Mastectomy Bra
Infection Control

Practices that prevent transmission of germs during fitting, such as hand hygiene, cleaning surfaces, and avoiding contact with open wounds. It protects both the client and the fitter.

Related: Scope of Practice, Referral