Association of Directors of Anatomic and Surgical Pathology
I. Gross description—ADASP recommends that the following features be included in the final report because they are generally accepted as being of prognostic importance, required for staging or therapy, and/or traditionally accepted.
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A. Number of specimen containers
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B. Condition of the specimen—fresh, in formalin, intact, incised by surgeon or pathologist, etc.
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C. Identification—patient name, case number, laterality, specimen identification (“labelled as … ”)
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D. Structures attached to testis—epididymis, spermatic cord, tunica vaginalis, scrotum
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E. Dimensions of all of the specimens
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F. Tumor description
-
1
Site in testis/paratestis—central, inferior pole, superior pole, testicular hilum, epididymis, paratesticular soft tissue, spermatic cord, etc.
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2
Tumor size, shape, consistency, color, cysts, scar, necrosis, hemorrhage, calcifications
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3
Relationship to tunica albuginea
-
4
Relationship to epididymis and spermatic cord
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5
If spermatic cord involvement, distance of tumor to cord margin. It is recommended that sections of the spermatic cord be obtained before incision of the main tumor to avoid contamination (1)
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6
Satellite tumors, if present
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1
-
G. Other lesions of the testis
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H. Tissue submitted for special study
II. Diagnostic information
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A. Topography—left or right testis
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B. Name of operation—as designated by surgeon, e.g., radical or simple orchiectomy
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C. Histologic type—a modified classification of the World Health Organization (WHO) (2) is recommended (3)
-
1
Germ cell tumors
-
a
Intratubular germ cell neoplasia
-
i
Unclassified type (IGCNU)
-
ii
Other forms (specify)
-
i
-
b
Tumors of one histologic type
-
i
SeminomaαVariant—seminoma with syncytiotrophoblastic cells (4)
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ii
Spermatocytic seminomaαVariant—spermatocytic seminoma with a sarcomatous component (5, 6) (specify type and grade of sarcoma)
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iii
Embryonal carcinoma
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iv
Yolk sac tumor
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v
ChoriocarcinomaαVariant—“monophasic” choriocarcinoma (7)
-
vi
Placental site trophoblastic tumor (7)
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vii
Teratoma αMature βImmature χWith a secondary malignant component (“teratoma with malignant transformation”) (specify type) δMonodermal variants
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1) Carcinoid
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2) Primitive neuroectodermal tumor
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3) Other
-
i
-
c
Tumors of more than one histologic type
-
i
Mixed germ cell tumor (specify components and provide an estimate of percent composition)
-
ii
Polyembryoma
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iii
Diffuse embryoma (8)
-
i
-
d
“Burnt-out” germ cell tumor
-
a
-
2
Sex cord-stromal tumors
-
3
Mixed germ cell—sex cord-stromal tumors
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4
Miscellaneous
-
a
Lymphoma (classify according to guidelines for nodal lymphoma) (17)
-
b
Plasmacytoma and multiple myeloma
-
c
Granulocytic sarcoma and leukemic infiltrates
-
d
Sarcoma (specify type and grade)
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e
Carcinomas and borderline tumors of ovarian-type (specify type and, for carcinomas, grade) (18)
-
f
Adenocarcinoma of the rete testis (19)
-
g
Adenocarcinoma of the epididymis
-
h
Melanotic neuroectodermal tumor (retinal anlage tumor) (20)
-
i
Malignant mesothelioma (specify type)
-
j
Desmoplastic small round cell tumor (21)
-
k
Others
-
a
- 5
-
1
-
D. For tumors in the sex cord-stromal category (with the exception of the juvenile granulosa cell tumor) specify if adverse prognostic features are present or absent. The following are included (9, 10, 11, 13, 24, 25):
-
1
Lymphovascular space invasion
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2
Coagulative tumor cell necrosis
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3
Significant cytologic atypia
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4
“High” mitotic rate (specify number of mitotic figures per 10 high-power fields, averaged from 40 high-power fields)
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5
Infiltrating borders
-
6
Extra-testicular growth
-
a
Note: According to the revised TNM staging system of the American Joint Committee on Cancer,(26) only paratesticular soft tissue, tunica vaginalis, or spermatic cord involvement are features of extra-testicular spread that merit designation as pT2 tumors; cases with rete testis or epididymal spread or tunica albuginea invasion without penetration remain pT1 lesions in the absence of vascular invasion.
-
a
-
7
“Large” tumor size
-
1
-
E. For tumors in categories other than the sex cord-stromal group, specify if there is lymphovascular space invasion or (for testicular tumors) extra-testicular extension (see above-mentioned Note) (27, 28, 29, 30, 31, 32, 33, 34)
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F. Adequacy of local excision—assessment of resection margins
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G. Other significant testicular disease
III. Features considered optional in the final report
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A. Stage—the data specified should facilitate application of most staging systems. In most circumstances, the pathologist will not be aware of the nodal status or other studies to permit an assignment of stage; however, accurate local staging of the testicular tumor can be accomplished, either by providing all of the requisite information (as indicated above) or by specifying a local “P stage” according to the revised system of The American Joint Committee on Cancer Staging (26)
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B. Results of ancillary studies
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C. Association of germ-cell tumors with intratubular germ cell neoplasia of the unclassified type
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D. Presence and type of inflammatory infiltrate
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E. Multifocal tumor
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Additional information
The members of the ad hoc committee on malignant and potentially malignant neoplasms of the testis and paratestis are Thomas M. Ulbright, M.D. (Chair), Robert H. Young, M.D., Victor E. Reuter, M.D., John R. Srigley, M.D., and Jae Y. Ro, M.D.
W. Dwayne Lawrence, M.D., Wayne State University, Department of Pathology, Hutzel Hospital, 4707 St. Antoine Boulevard, Detroit, MI 48201. fax: 313-993-8862
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Protocol for Malignant and Potentially Malignant Neoplasms of the Testis and Paratestis. Mod Pathol 13, 1045–1049 (2000). https://doi.org/10.1038/modpathol.3880190
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DOI: https://doi.org/10.1038/modpathol.3880190