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Eur J Cardiothorac Surg 2005;27:401-404
© 2005 Elsevier Science NL

A forgotten old disease: mediastinal tuberculous lymphadenitis in children

^a Department of Paediatric Cardiac Surgery, Diana Princess of Wales Children's Hospital, Steelhouse Lane, Birmingham B4 6NH, UK
^b Department of Respiratory Medicine, Diana Princess of Wales Children's Hospital, Steelhouse Lane, Birmingham B4 6NH, UK
^c Department of Paediatric Surgery, Diana Princess of Wales Children's Hospital, Steelhouse Lane, Birmingham B4 6NH, UK

Received 16 November 2004; received in revised form 9 December 2004; accepted 14 December 2004.

^* Corresponding author. Tel. +44 121 333 8083; fax: +44 121 333 8081. (E-mail: dakshesh.parikh{at}bch.nhs.uk).

Objective: The purpose of the study was two-fold: (1) to highlight the varied presentation of mediastinal tuberculous lymphadenitis (MTL) in children and (2) to identify parameters, that may help in the early diagnosis of this condition. Methods: Between January 1995 and December 2002, 13 children with histological diagnosis of MTL were retrospectively assessed for age at presentation, history of exposure to TB, presenting symptoms, investigations, initial diagnosis, surgical treatment and outcome. Stepwise multiple linear regression analysis was used to determine potential risk factors for early diagnosis of MTL. Results: Thirteen children presented with: (a) fever, night sweats and weight loss (4); (b) acute respiratory distress (2); (c) cough and shortness of breath (SOB) (5); (d) stridor (1); and (e) chest pain (1). TB was suspected only in 6 children (46%) at presentation. In the other 7 cases (54%) the presumed diagnoses were: neuroblastoma (n=1), metastatic malignancy (n=1), bronchial polyp (n=1), bronchogenic cyst (n=2), and presumed foreign body (n=2). Bronchoscopy was diagnostic in identifying cheesy material within the bronchus and organisms on lavage in 4 (30%) and in identifying external compression in 2 (15%). Thoracotomy and excision of the lymph node mass was necessary to treat the mediastinal compression and to ascertain the diagnosis of TB in 3 children (23%). All 13 children had complete resolution of tuberculous lymphadenitis following anti-tuberculous treatment. The diagnostic clues in this cohort of patients were cough and SOB with history of exposure to tuberculosis (P=0.0001) and bronchoscopy and lavage with positive staining for acid-fast bacilli (P=0.0001). Conclusions: Tuberculosis was not suspected in 54% of children with MTL, and they posed diagnostic dilemma on admission. Bronchoscopy must be used as a diagnostic tool in children where tuberculosis cannot be excluded by radiology or specific skin tests. Thoracotomy and excision may be necessary to treat the obstructive symptoms.

Key Words: Tuberculosis • Surgical presentation • Mediastinal lymphadenitis • Children