Parapharyngeal tuberculoid mass: a rare complication of Bacillus Calmette-Guérin therapy for urothelial carcinoma in situ

Bacillus Calmette-Guérin (BCG) is commonly used in treating superficial urothelial carcinoma. Though rare, local and systemic disseminated BCG infections are important to recognize as they require prolonged antimicrobial therapy and surveillance. We present an unusual case of a parapharyngeal space mass as manifestation of disseminated BCG following urothelial carcinoma treatment.