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Table 1 Characteristics of canine seminomas used in the present study.

From: Canine classical seminoma: a specific malignant type with human classifications is highly correlated with tumor angiogenesis

Breed

Age (years)

Cryptorchid

Histological type

Tumor cells invasion

Lymphocytes infiltration

PLAP immunostaining

PAS staining

Cocker Spaniel

4

Absence

Intratubular

×

×

-

-

Yorkshire Terrier

13

Presence

Diffuse

×

×

-

-

Maltese

12.7

Absence

Diffuse

×

O

-

-

Yorkshire Terrier

13

Absence

Diffuse

×

×

-

-

Yorkshire Terrier

13

Presence

Diffuse

O

×

-

-

Maltese

9

Presence

Diffuse

O

O

-

-

Poodle

9

Absence

Intratubular/diffuse

O

×

-

-

Shih Tzu

unknown

Absence

Intratubular/diffuse

O

O

+

+

Maltese

10

Absence

Intratubular/diffuse

×

O

+

+

Yorkshire Terrier

6

Absence

Intratubular

×

×

-

-

Shih Tzu

6

Absence

Intratubular/diffuse

×

×

+

+

Maltese

12.5

Presence

Intratubular/diffuse

O

×

+

+

Maltese

12

Presence

Intratubular/diffuse

O

O

+

+

Akida

13

Absence

Diffuse

O

O

-

-

Maltese

9

Absence

Intratubular/diffuse

O

O

-

-

Maltese

7

Absence

Intratubular/diffuse

O

O

+

+

Yorkshire Terrier

12

Absence

Intratubular/diffuse

×

O

-

-

Maltese

10

Absence

Diffuse

×

O

-

-

Poodle

9

Presence

Intratubular/diffuse

O

O

-

-

Shih Tzu

9

Presence

Diffuse

×

O

-

-

Maltese

unknown

Absence

Intratubular/diffuse

O

×

+

+

Yorkshire Terrier

14

Absence

Diffuse

×

O

-

-

Shih Tzu

3

Presence

Intratubular/diffuse

O

×

+

+

  1. Note: O, observed; ×, not observed; +, positive; -, negative; PLAP, placental alkaline phosphatase; PAS, periodic acid-Schiff