No abstract

Sarcoidosis, a multisystem disorder of unknown cause, is characterized by the presence of non-caseating granulomas and the proliferation of epithelioid cells. Sarcoidosis mostly affects the lungs and mediastinal lymph nodes in 90% of cases. Caseation and necrosis are very rare. We report the present case in view of its rarity, as sarcoidosis with significant necrosis in mediastinal lymph nodes is a rare phenomenon and can mislead the treating physician into diagnosing it as tuberculosis, which can lead to exposure of the patient to undue side effects of anti-tubercular drugs.

Endobronchial tuberculosis (TB) or tracheobronchial TB is defined as tuberculous infection of the tracheobronchial tree with microbial and histopathological evidence. Here, in this article, we are reporting four surprising cases of endobronchial TB which came to our institution with clinical symptoms and signs suggestive of TB but chest X-rays were within normal limit and sputum microscopies were repeatedly negative. Bronchoscopy was performed which showed endobronchial lesions. Hence, early diagnosis and treatment were possible for these patients.