21 Flashcards
when is excisional biopsy contraindicated
when histopathologic disease process of the mass in UNKNOWN
needle core biopsy method
obtained percutaneously or openpneumatic vs spring filled vs manualsmallleast invasiveprone to crush
disadvantages of needle core biopsy
small size/qualityprone to crushinaccurate tissue collectionhemorrhageseeding of tumor cells
US guided liver biopsy recommendations
needle core biopsyat least 2 cm away from vascular structures33% get skeletal muscle
reported lateral thermal damage in liver biopsy w harmonic scalpel
1.3 mm
recommendations for endoscopic GI biopsy sample #
stomach 6-8SI 10-15LI 3-4
T/Fendoscopic biopsy can ddx btwn inflm vs neoplasia in bowel of cat
FALSEcan NOT ddx btwn IBD vs LSA in catsneed full thickness biopsy
target sampling of renal biopsies
CORTEX
T/Frenal biopsy by novice endoscopist were superior to US guided biopsies
TRUEless artifactincr glomerulifewer inappropriate tissue samples
major complication following renal biopsy
hemorrhage
risk factors associated with open renal biopsy complications
agelow body weightsevere azotemia
methods for bone biopsy
Jamshidi closed needle (smaller, lower diagnostic quality)Michelle Trephine (better quality, risk fx)
methods of lung lobe biopsy
pre tied loop ligatures (2 cm biopsies obtained)TA staplerendoscopic staplers
T/F harmonic scalpel use in spleen led to less hemorrhage when compared to standard techniques Vt Sx 2006 Barnes et al
FALSE incr inflam/fibrous CT in pancreas/spleendid NOT control hemorrhage from spleen as wellcoagulation necrosis evident in sample but diagnostic quality achieved
