A Deep Learning Approach for Histopathological Diagnosis of Onychomycosis: Not Inferior to Analogue Diagnosis by Histopathologists.

Onychomycosis is common. Diagnosis can be confirmed by various methods; a commonly used method is the histological examination of nail clippings. A deep learning system was developed and its diagnostic accuracy compared with that of human experts.

[Cutaneous granulomatous reactions at botulinum neurotoxin A injection sites: First manifestation of systemic sarcoidosis].

Case Report: We report a case of granulomatous skin reaction after injection of an unknown botulinum neurotoxin (BoNT) A preparation. Four years after occurrence of skin lesions, systemic sarcoidosis became manifest.

Conclusion: In addition to injection trauma, the BoNT A preparation may have acted as an immunogenic stimulus leading to cutaneous manifestation of sarcoidosis.