Oncology: Principles in Oncology Rehab 1 Flashcards
WHY do PTs need to know about pts w/ Cx
- ALL systems affected
- ALL ages affected
- Cx and Tx affects function + mobility
-
ICF
- Body function and Structure==Impairments
- Activity=Limitations
- Participation=Resstrictions on life situations
-
ICF
PT settings where you will see oncology pts
ALL of them!!!
Estimated New Cx Cases in US
see pics
Carcinogenesis Terminology:
what is Cx?
- Alteration of differentiation so that malignant cells cannot be recognized by its origin parent cells
- **ANAPLASTIC
Carcinogenesis Terminology:
Dysplasia
- GENERAL disorganization of cells
- MAY BE REVERSIBLE
Carcinogenesis Terminology
Metaplasia
- DISORDERLY cell patterns
- REVERSIBLE AND BENIGN
Carcinogenesis Terminology
Hyperplasia
- INCd # of cells creating a tissue mass
- NEOPLASTIC HYPERPLASIA
Tumor, Neoplasm, Malignancy
- a NEW growth
- Any abnormal mass or tissue which exceeds the growth of NORM tissue
- SERVES NO USEFUL PURPOSE
- Benign OR malignant
Cx defined:
A group of dis’s characterized by uncontrolled growth and spread of abnorm cells
Benign
Characteristics:
- SLOW growing
- Encapsulated (one area)
- NON-invasive
- Tumor cells are SIMILAR to originating tissue
- HIGHLY differentiated
- **can still be very serious or life-threatening depending on location or size
Malignant
Characteristics:
- RAPID uncontrolled growth
- NON-encapsulated (spread out)
- Destructive to surrounding tissue
- NOT WELL-DIFFERENTIATED
- **Ability to metastasize
Dx of Cx:
S/S
- PAIN
- Fatigue
- Palpable lump
- Wt. Loss—-often unexplained
- Fx***
- iatrogenic fx’s
- *sometimes FIRST sign of metastatic cx
- Dis specific sx’s
Dx of Cx
S/S
Paraneoplastic Syndromes
- Tumor producing s/s AWAY from primary or metastatic site
- thru production/secretion of hormones
ONLY WAY TO DEFINITIVELY Dx A Cx
BIOPSY ***
Dx: Exams and Tests to detect Cx
- Blood tests
- Palpation + Clinical exam
- Radiography
- US
- MRI
- Bone Scan****
- Lab tests
- stool sample
- sputum
- cytology
-
Site specific Tests
- colonoscopy
- mammography
- sigmoidoscopy
- Pap smear
- bronchoscopy
-
BIOPSY***
- ONLY definitive way to Dx Cx
BIOPSY
*only way to definitively Dx Cx
Different methods:
- Curettage (Pap smear)
- fluid aspiration
- Fine needle aspiration
- Core needle biopsy
- Dermal punch
- Endoscopy
- open excision
- Sentinel lymph node biopsy
- stereotactic biopsy
- robotic needles
Dx of Cx and Genetics???
Only a SMALL portion of cx’s linked to a single gene are inherited
*only 5-10%
Dx of Cx: Genetics
MOST COMMON Cx WITH A FAMILIAL PATTERN:
PBOC
- Prostate
- Breast
- Ovarian
- Colon
Dx of Cx: Genetics
Oncogenes
- Ability to transform norm cells INTO malignant cells by hyperactivation
Dx of Cx: Genetics
Tumor suppressive genes
- Regulate growth and inhibit carcinogenesis
Dx of Cx: Genetics
What leads to aggressive cell proliferation? (dividing and spreading of cx cells)
- Defects in BOTH oncogenes and tumor suppressive genes leads to aggressive cell proliferation
- MORE oncogenes and LESS tumor suppressive genes==> Aggressive cell proliferation
Research ID and cataloguing genes that are assoc’d w/ Cx
- BRCA 1, BRCA2
- Cx suppressor is mutated
Dx of Cx: Genetics
In contrast to genetics, ________ all cx may be caused by environmental agents (carcinogens) OR viruses
50%
NON-modifiable risk factors for Cx
Age
Genetics+Family Hx
Gender
Race
Ethnicity