Volume 26, Number 10—October 2020
Research Letter
Mycobacterium leprae on Palatine Tonsils and Adenoids of Asymptomatic Patients, Brazil
Table
Patient data and results of Fite-Faraco staining, immunohistochemistry with anti–PGL-I antibody, and PCR assays in study of Mycobacterium leprae on palatine tonsils and adenoids, Brazil, 2019*
Patient no. | Age, y/sex | Lymphoid organ | Fite-Faraco stain | IHC anti–PGL-I | PCR RLEP | M. leprae identification by DNA sequencing, % |
---|---|---|---|---|---|---|
1 |
20/F |
AD |
+ |
+ |
+ |
ND |
2 | 19/M | RPT | + | + | + | ND |
LPT |
– |
+ |
+ |
ND |
||
3 | 10/M | RPT | + | + | + | 100 |
LPT |
– |
+ |
+ |
ND |
||
4 | 9/M | RPT | – | + | + | ND |
LPT | + | + | + | 99 | ||
AD |
+ |
+ |
+ |
ND |
||
5 | 7/M | RPT | – | + | + | ND |
LPT | + | + | + | ND | ||
AD |
– |
+ |
+ |
ND |
||
6 | 4/M | RPT | – | + | + | ND |
LPT | + | + | + | 99 | ||
AD |
– |
– |
+ |
ND |
||
7 | 13/F | RPT | + | + | + | 98 |
LPT | – | + | + | ND | ||
AD |
– |
+ |
+ |
ND |
||
8 | 6/M | RPT | – | – | – | ND |
LPT | + | + | + | ND | ||
AD |
– |
+ |
+ |
98 |
||
Total positive results |
9 | 18 | 19 |
*AD, adenoid; PGL-I, phenolic glycolipid I; IHC, immunohistochemistry; LPT, left palatine tonsil; ND, not determined; RLEP, M. leprae repetitive DNA sequence; RPT, right palatine tonsil; –, negative; +, positive.
1These authors contributed equally to this article.