Difference between revisions of "Sign-Out Tools: Breast"

From MGH Learn Pathology
 
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! Score !! Tubule Formation !! Nuclear Pleomorphism !! Mitotic Count*
 
! Score !! Tubule Formation !! Nuclear Pleomorphism !! Mitotic Count*
 
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| style="background-color:#ffeeab;" | 1 || style="background-color:#ffeeab;" | More than 75 % || style="background-color:#ffeeab;" | Slight || style="background-color:#ffeeab;" | 0 - 18
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| style="background-color:#ffeeab;" | 1 || style="background-color:#ffeeab;" | More than 75 % || style="background-color:#ffeeab;" | Slight || style="background-color:#ffeeab;" | 0 - 8
 
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| style="background-color:#fcd432;" | 2 || style="background-color:#fcd432;" | 10% - 75% || style="background-color:#fcd432;" | Moderate || style="background-color:#fcd432;" | 9 - 17
 
| style="background-color:#fcd432;" | 2 || style="background-color:#fcd432;" | 10% - 75% || style="background-color:#fcd432;" | Moderate || style="background-color:#fcd432;" | 9 - 17

Latest revision as of 15:26, November 29, 2021

Coded Comments

Code Comment
IDC Invasive ductal carcinoma
ILC Invasive lobular carcinoma
DCIS Ductal carcinoma in‐situ
DCIS1 Ductal carcinoma in‐situ, grade 1
DCIS2 Ductal carcinoma in‐situ, grade 2
DCIS3 Ductal carcinoma in‐situ, grade 2
ADH Atypical ductal hyperplasia
FEA Flat epithelial atypia
LCIS Lobular neoplasia (lobular carcinoma in‐situ)
ALH Lobular neoplasia (atypical lobular hyperplasia)
FBA Fibroadenoma
PASH Pseudoangiomatous stromal hyperplasia
FCC Fibrocystic changes
UDH Usual ductal hyperplasia
SCA Sclerosing adenosis
BDA Blunt duct adenosis
RADS Radial scar
HBX Healing biopsy site
XRT Changes consistent with prior irradiation
CALC Calcifications
CALC Calcifications
ITC Isolated tumor cells
KER1 Immunostained slides for cytokeratin AE1.3/Cam5.2, cytokeratin 7, and cytokeratin MNF116 were

examined on tissue levels.

KER2 Immunostained slides for cytokeratin AE1.3/Cam5.2, cytokeratin 7, and cytokeratin MNF116 were

examined on tissue levels from each of 2 blocks.

KER3 Immunostained slides for cytokeratin AE1.3/Cam5.2, cytokeratin 7, and cytokeratin MNF116 were

examined on tissue levels from each of 3 blocks.

GRDNR The tumor grade in this limited sample may not be representative of the entire lesion.
BRADS The results of immunohistochemical staining for estrogen receptor, progesterone receptor, and

Her2/neu protein expression and of fluorescence in‐situ hybridization studies for Her2/neu gene amplification will be reported in an addendum.

ERPR Note: The results of immunohistochemical staining for estrogen and progesterone receptors will

be reported in an addendum.

MARG NOTE: The resection margins of the specimen(s) were inked and microscopically evaluated; see

individual gross descriptions.

MARG1 NOTE: The resection margins of the specimen were inked and microscopically evaluated.
MARG2 NOTE: The resection margins of the specimens were inked and microscopically evaluated.
MULTI The patient’s chart and available radiographs were reviewed at the MGH Breast Center

multidisciplinary conference.

EEEEE This case does not contain all the coding components for CMS PQRI measure #99.

Grading Chart: Ductal Carcinoma In-situ Grading

Pleomorphic nuclei
Abundant central necrosis Present Absent
Present Grade 3 Grade 2
Absent Grade 3 Grade 1

[1]

Rauramo et al.: The effect of castration and peroral estrogen therapy on some psychological functions. Front Horm Res 1975;3:94-104. PMID: 1234567


Grading Chart: Invasive Carcinoma Grading

Score Tubule Formation Nuclear Pleomorphism Mitotic Count*
1 More than 75 % Slight 0 - 8
2 10% - 75% Moderate 9 - 17
3 Less than 10% Marked 18 or greater

* per 10 high power field with 40X objective and 10X ocular with a Field Diameter = 0.55 mm. A field diameter of 0.55 mm is assumed for this table and is compatable with sign-out booth Olympus microscopes. Please confirm that the field diameter of your microscope is 0.55 mm before using the above chart. For other field diameters, please see the conversion chart below.

Total Score Interpretation
3-5 Grade 1 (Low Grade)
6-7 Grade 2 (Intermediate Grade)
8-9 Grade 3 (High Grade)

[2]

Score Categories According to Field Diameter and Mitotic Count

Table of mitosis score thresholds by Field Diameter (mm)
Field Diameter (mm) Field Area (mm2 Number of Mitoses per 10 Fields
Score 1 Score 2 Score 3
0.50 0.196 ≤7 8 to 14 ≥15
0.51 0.204 ≤7 8 to 14 ≥15
0.52 0.212 ≤7 8 to 15 ≥16
0.53 0.221 ≤8 9 to 16 ≥17
0.54 0.229 ≤8 9 to 16 ≥17
0.55 0.238 ≤8 9 to 17 ≥18
0.56 0.246 ≤8 9 to 17 ≥18
0.57 0.255 ≤9 10 to 18 ≥19
0.58 0.264 ≤9 10 to 19 ≥20
0.59 0.273 ≤9 10 to 19 ≥20
0.60 0.283 ≤10 11 to 20 ≥21

References

  1. Citation: Silverstein et al.: Prognostic classification of breast ductal carcinoma-in-situ. Lancet 1995;345:1154-7. PMID: 7723550
    We present a new prognostic classification designated the Van Nuys classification for ductal carcinoma-in-situ (DCIS). The classification combines high nuclear grade and comedo-type necrosis to predict clinical recurrence. Three groups of DCIS patients were defined by the presence or absence of high nuclear grade and comedo-type necrosis: 1--non-high-grade DCIS without comedo-type necrosis, 2--non-high-grade DCIS with comedo-type necrosis, 3--high-grade DCIS with or without comedo-type necrosis. There were 31 local recurrences in 238 patients after breast-conservation surgery 3.8% (3/80) in group 1, 11.1% (10/90) in group 2, and 26.5% (18/68) in group 3. The 8-year actuarial disease-free survivals were 93%, 84%, and 61%, respectively (all p < or = 0.05). The Van Nuys classification defines three distinct and easily recognisable groups, each of which has a different likelihood of local recurrence if treated with breast conservation.
  2. Citation: Robbins et al.: Histological grading of breast carcinomas: a study of interobserver agreement. Hum. Pathol. 1995;26:873-9. PMID: 7635449
    Interobserver variation in the histological grading of breast carcinoma was investigated using the hypothesis that optimal fixation, more precise grading guidelines, some experience, the use of training and test sets, and a comparison of results with an expert group might allow higher levels of agreement. For the training sets sections from 50 consecutive cases of breast carcinoma received at the Sir Charles Gairdner Hospital (SCGH) and fixed in both B5 and buffered formal saline (BFS) were graded by consensus of three pathologists at the SCGH and independently by consensus of two pathologists at the Nottingham City Hospital (NCH) using a modified Scarff-Bloom-Richardson histological grading system with guidelines as suggested by NCH pathologists. The section quality and degree of preservation of nuclear morphology were judged by NCH pathologists to be superior for B5-fixed material. Complete agreement in grade between SCGH and NCH results was achieved for 83.3% of B5-fixed cases and 73.5% of BFS-fixed cases (P = .05) with relative disagreement rates (RDRs) of 0.15 and 0.29 and kappa statistic values of 0.73 and 0.58, respectively. Approximately 80% complete agreement was achieved for tubule formation, nuclear score, and mitotic count, with RDRs ranging from 0.19 to 0.27 and kappa values from 0.46 to 0.69. There was a consistent bias in the SCGH results toward a higher tubule score in both B5- and BFS-fixed material because of a difference in interpretation of cribriform or complex gland patterns and a consistent bias in SCGH results toward a lower nuclear size/pleomorphism score for B5 and BFS material. For the test set sections from 50 further consecutive cases of breast cancer fixed in B5 were examined using similar criteria but taking into account the sources of error shown by the training set. Approximately 80% complete agreement was again achieved for grade components and grade (RDRs, 0.18 and 0.72). Systematic bias was reduced in the test set, but no other improvement was observed. Of the tumors designated as grade I by NCH, 87.5% were called grade I tumors by SCGH in the B5 training set, 84.6% in the B5 test set, and 66.6% in the BFS training set. The levels of agreement shown in both the training and test sets were satisfactory and represented a significant improvement over our previous study, suggesting that experience and precise grading guidelines are of value. The similar levels of agreement in training and test sets suggest that reasonable results can be achieved without direct training by expert groups.(ABSTRACT TRUNCATED AT 400 WORDS)

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