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Various studies shows association of tuberculid with phlyctenular conjunctivitis, along with tuberculosis focus
| Study | Tuberculid (n)† | Phlyctenular conjunctivitis | Tuberculosis focus |
|---|---|---|---|
| Rauschkolb je[1] | Lichen scrofulosorum (11) | >50% | Pulmonary TB |
| Jordaan et al.[2] | Papulonecrotic tuberculid (8) | 37.5% | Pulmonary TB |
| Stein and Freiman[3] | Tuberculid (1) | present | Unknown |
| Singal et al.[4] | Lichen scrofulosorum (1) | present | Pulmonary TB and scrofuloderma |
†n - number of subjects
