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Updated: Apr 11, 2026

Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea
Published on: November 9, 2016
Mycobacterial infection after cosmetic procedure with botulinum toxin a
Marcela Saeb-Lima1, Gerardo-Victor Solis-Arreola2, Angel Fernandez-Flores3
1Consultant Dermatologist, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Hospital Angeles Lomas , Centro Medico ABC, Mexico City, Mexico .
Abstract:
We report a case of mycobacterial infection at the sites of previous injections of botulinum toxin A in a 45-year-old woman. She presented with erythematous, swollen, warm, and tender plaques and nodules at the points of injection from which a biopsy was taken, demonstrating a deep dermal and hypodermal abscessified epithelioid granulomatous inflammatory infiltrate in which some acid-fast bacilli were identified with Ziehl-Neelsen and Fite-Faraco stains. The lesion was first treated with clarithromycin plus azithromycin, to which rifampicin was later added. A good therapeutic response was obtained.
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