GPA: granulomatosis with polyangiitis MP: malignant pyoderma PG: pyoderma gangrenosum INTRODUCTION The manifestations of habitual cocaine use can mimic tumors, infections, and immunologic diseases and can affect multiple organs, causing nasal septal perforation, cutaneous vasculitis, vasculopathic skin necrosis, pyoderma gangrenosum (PG), and lung disease. Levamisole is a veterinary antiparasit...

Pyoderma gangrenosum is a rare, ulcerative, non-infectious neutrophilic dermatosis, commonly associated with underlying systemic disease. The features of pyoderma gangrenosum are not specific histopathologically and for this reason the diagnosis is based on clinical feature. The systemic administration of corticosteroids is the mainstay of treatment. We present five cases of pyoderma gangrenosu...

INTRODUCTION Superficial granulomatous pyoderma (SGP) is a rare variant of pyoderma gangrenosum (PG) and differs from classic PG in its indolent clinical course, lack of associated underlying disease, the finding of a granulomatous infiltrate on histology, and better prognosis with less-aggressive therapies. METHODS We report on a case of SGP involving the face following local reexcision of a...

Meticillin-resistant Staphylococcus pseudintermedius (MRSP) has recently emerged as a worldwide cause of canine pyoderma. In this study, we characterized 22 S. pseudintermedius isolates cultured from 19 dogs with pyoderma that attended a veterinary dermatology referral clinic in Australia in 2011 and 2012. Twelve isolates were identified as MRSP by mecA real-time PCR and phenotypic resistance t...

Pyoderma gangrenosum is a skin ulcerative necrosis, due to dermal neutrophilic infiltration, through a non-infectious exacerbation of cell -mediated immunity. Being characterized by pathergy, the disease may be triggered by surgery; in this case, it is easily mistaken for a postoperative infection. We report a case of pyoderma gangrenosum after coronary artery bypass surgery. The patient develo...

IL: interleukin PAPA: pyogenic arthritis, pyoderma gangrenosum, and acne PASH: pyoderma gangrenosum, acne, and suppurative hidradenitis PG: pyoderma gangrenosum TNF: tumor necrosis factor UC: ulcerative colitis INTRODUCTION Pyoderma gangrenosum (PG) is a rare, inflammatory, and necrotizing disease that belongs to the group of neutrophilic dermatosis. The pathogenesis of PG remains unknown. In t...

Peristomal pyoderma gangrenosum (PPG) is a rare subtype of pyoderma gangrenosum that is difficult to diagnose and treat. It is characterized by the rapid progression of painful necrotic ulcer surrounding an area of abdominal stoma. It is almost exclusively associated with inflammatory bowel disease even after bowel surgery and is associated with significant morbidity. Diagnosis of pyoderma gang...