“…3,4 The typical histological picture shows a giant cell granuloma contiguous to an area of caseous necrosis. 1,2 However, this pathognomonic sign is not always a constant and therefore differential diagnoses should be considered, such as Crohn's disease, genital herpes, actinomycosis, sarcoidosis, suppurative hidradenitis, syphilis, herpes zoster, neoplasia, trauma and lymphogranuloma venereum. 3,7,21 Regarding treatment, the initial form of approach is the use of a chemotherapy regimen consisting of rifampin, isoniazid, pyrazinamide and ethambutol for six months.…”