Recurrent skin ulceration: A recherché manifestation of granulomatosis with polyangiitis

A 24-year-old woman presented with an eight-month history of skin-colored nodules on both thighs, which had been recurrent but painless. However, they had spontaneously ruptured to form painful ulcers with purulent discharge. She had been treated with multiple oral and intravenous antibiotics and had undergone numerous incision and drainage procedures for the issues. She did not report any other systemic complaints. A clinical examination of the lesions revealed multiple, well-defined, variably sized, and multiloculated deep ulcers, with bluish margins and copious, foul-smelling, purulent blood-stained discharge (Fig.