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Table 1 Results of culture, histopathology, and PCR from fresh tissue compared to PCR from FFPE specimens (n = 27)

From: Performances of two different panfungal PCRs to detect mould DNA in formalin-fixed paraffin-embedded tissue: what are the limiting factors?

Patient

Tissue site (storage in years)

Culture

Histopathology

ITS1-2PCR on fresh tissue

PCR on FFPE

Identification after sequencing (% identity)

ITS1-2

ITS2

Culture positive samples

1

Lung (7)

Aspergillus nidulans

+

ND

+

+

Hormographiella aspergillata (100)

2

Lung (6)

A. fumigatus/Fusarium sp.

-

ND

-

+

A. fumigatus (99)

3

Lung (4)

A. fumigatus

+

ND

-

+

probably A. lentulus (100)

4

Lung (4)

A. fumigatus

+

ND

+

+

A. fumigatus (100)

5

Lung (4)

A. fumigatus

+

ND

-

+

A. fumigatus (99)

6

Lung (3)

H. aspergillata

+

ND

+

+

H. aspergillata (100)

7

Lung (5)

A. fumigatus

+

ND

-

+

A. fumigatus (99)

8

Lung (1)

Rhizopus sp.

+

ND

+

+

Rhizopus microsporus/azygosporus (99)

9

Skin (6)

A. flavus

ND

ND

+

+

A. flavus (100)

10

Skin (1)

Alternaria sp

ND

ND

+

+

Alternaria sp. (99)

11

Lung (4)

A. nidulans

+

ND

+

+

A. nidulans (100)

12

Lung (2)

A. fumigatus

-

ND

-

-

-

13

Lung (2)

H. aspergillata

+

ND

-

-

-

14

Lung (5)

A. fumigatus

+

ND

-

-

-

15

Soft tissue (7)

Rhizopus sp.

+

ND

-

-

-

16

Cerebellum (3)

H. aspergillata*

+

ND

-

-

-

17

Lung (4)

A. flavus

+

ND

-

-

-

Histopathology-positive, culture-negative samples

18

Small intestine (2)

-

+

ND

+

+

A. fumigatus (100)

19

Sinus sphenoidalis (5)

-

+

ND

-

-

-

20

Lung (4)

-

+

ND

-

-

-

21

Lung (3)

-

+

ND

-

-

-

22

Lung (2)

-

+

ND

-

-

-

PCR positive, culture-negative samples

23

Lung (1)

-

+

A. flavus

+

+

A. flavus (100)

24

Lung (1)

-

+

H. aspergillata

+

+

H. apergillata (99)

25

Lung (1)

-

-

R. pusillus/tauricus

-

-

-

26

Lung (1)

-

+

R. pusillus/tauricus

-

-

-

27

Lung (1)

-

+

Lichtheimia corymbifera

-

-

-

  1. *grown in blood culture, case previously described [27].
  2. +,positive; −, negative; ND, not done.