(redirected from high-power field)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia, Wikipedia.
HPFHigh Pass Filter (electronics)
HPFHours Post Fertilization
HPFHigh-Pressure Freezing (cryofixation)
HPFHigh-Power Field (laboratory data)
HPFHigh Power Field (microscopy)
HPFHorizon Patient Folder
HPFHigh Performance FORTRAN
HPFHp Fonts
HPFHigh Pass Filter
HPFHomeownership Preservation Foundation (Minneapolis, MN)
HPFHighest Possible Frequency
HPFHealth Products and Food (Canada)
HPFHistoric Preservation Foundation (various locations)
HPFHealth Policy Forum (various organizations)
HPFHealth Policy Fellowship
HPFHigh Pressure Feeder
HPFHazardous Processing Facility
HPFHighest Priority First
HPFHuman Powered Flight (aviation)
HPFHorizontal Processing Facility (US NASA)
HPFHalf Past Forever (band)
HPFHaitian Police Force
HPFHeartland Presidential Forum (Iowa)
HPFHeterogeneous Packet Flow
HPFHurley Palmer Flatt (UK engineering consultancy)
HPFHigh Plains Fencing
HPFHazardous Payload Facility (NASA)
HPFHorsepower Factor
HPFHost Parameter File
HPFHomologous Protein Family
HPFHemingway Preservation Foundation
HPFHome Parenteral Feeding
References in periodicals archive ?
The number of positive cells for Ki-67, p21, and PHH3 was calculated in 10 consecutive high-power fields in a hot spot.
Among subsequently reported cases, only 1 had IgG4 and IgG stains performed: There were 10 [IgG4.sup.+] plasma cells per high-power field, an IgG4:IgG ratio of 10%, and no clinical signs suggestive of IgG4-related disease.
Microscopic evaluation of the urinary sediment revealed dysmorphic red blood cells suggesting glomerular disease (2 red blood cell casts and 60-80 red blood cells per high-power field with >10% of G1 cells and >80% dysmorphic erythrocytes).
From the entire CatS data set comprising 38 pigs with 4 AT compartments per pig and 5 high-power fields per compartment, surmounting to approximately 760 high-power fields, we only found 19 crown-like structures in 18 high-power fields, an average of 1.45 crown-like structures/[mm.sup.2].
Mitotic figures are readily identified, greater than 5 per 10 high-power fields. No evidence of microvascular proliferation or of necrosis is observed.
Caption: Figure 3: High-power field view of the marked area in Figure 2 (H.E., x400).
Grade II meningiomas (atypical) are defined by one or more of the following four criteria: (1) chordoid or clear cell histologic subtype, (2) 4 to 19 mitoses per ten high-power field (HPFs), (3) brain infiltration, and (4) 3 or more of the following five histologic features: small cell change, increased cellularity, prominent nucleoli, sheet-like growth, or necrosis.
The biopsy was reassessed and found to have increased IgG4positive plasma cells around 30-40 per high-power field with the background of adenoma with high-grade dysplasia.
There were >30 IgG4 cells per high-power field. A large number of CD4+ positive cells (~50%) were observed in the specimen (Figures 2(a)-2(f)).
Urinalysis showed proteinuria (4.9g/day) and hematuria (5-9 erythrocytes per high-power field) with granular casts (5-9 per high-power field) and lipid casts (5-9 per whole field).
The microscopic description in low-power views showed a fibroepithelial lesion with intracanalicular growth patterns that form cleft-like spaces, infiltrating focal borders, stromal heterogeneity with myxoid and hypercellular areas, mild cell atypia, and one mitosis per 10 high-power field. Epithelial and benign glandular elements with florid hyperplasia were present (Figures 5(a) and 5(b)).