title: Cutaneous tuberculosis and phlyctenular keratoconjunctivitis: a forgotten association.
abstract: Cutaneous tuberculosis may be associated with concurrent systemic foci in the body such as lung, lymph node, bone or CNS. Phlyctenular keratoconjunctivitis (PKC) is a manifestation of immunological response to a variety of antigens in the eye, tubercular focus (evident or occult) being the commonest in India. Reports in the existing literature have shown lungs and lymph nodes to be the predominant underlying focus associated with PKC, whereas cutaneous tuberculosis has seldom been found in this situation. We report this forgotten association in two children with cutaneous tuberculosis, one each with lupus vulgaris and scrofuloderma, who also had PKC. Interestingly, one of the cases also had simultaneous lichen scrofulosorum, which is also an immunological response to tubercular antigen and manifests in the skin, thus showing immunological manifestation in two different organ systems along with cutaneous focus of tuberculosis.
authors.affiliation: Department of Dermatology and STD, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi - 110 095, India.
authors.forename: Archana
authors.initials: A
authors.lastname: Singal
authors.forename: Puneet
authors.initials: P
authors.lastname: Aggarwal
authors.forename: Deepika
authors.initials: D
authors.lastname: Pandhi
authors.forename: Jolly
authors.initials: J
authors.lastname: Rohatgi
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D007637:Keratoconjunctivitis / Q000150:complications* / Q000175:diagnosis*; D017512:Lichenoid Eruptions / Q000150:complications; D008177:Lupus Vulgaris / Q000150:complications; D008297:Male; D014382:Tuberculosis, Cutaneous / Q000150:complications* / Q000175:diagnosis*; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis