Agminated Pyogenic Granuloma - De novo Presentation

Abstract

Pyogenic granuloma (PG) (lobular capillary haemangioma) is a relatively common benign vascular tumour of unknown aetiology afflicting the skin and mucous membranes. It often occurs in the setting of acquired vascular deformities, traumatic injury or pregnancy. While PGs are common, they rarely arise as agminated lesions. Multiple or ‘agminated’, PGs have been reported in the setting of pre-existing congenital arteriovenous malformations or port-wine stains due to increased local blood flow and angiogenesis as well as in areas of preceding scald burns. Herein, we describe a case of agminated PG that developed de novo without any underlying vascular malformation.