[Human subcutaneous dirofilariosis due to Dirofilaria repens. A case diagnosed in Strasbourg, France].

We report a case of human dirofilariosis in a 35 year-old man living in Alsace (North-East France), who presented a subcutaneous nodule of the left cheek, strongly simulating an epidermic cyst. Surgical excision and histopathological examination unexpectedly established the diagnosis by the presence of nematode worm sections identified as Dirofilaria (Nochtiella) repens. This patient living in a rural area of Strasbourg spent one week in Toulon, Southern France. This new observation of cutaneous dirofilariosis constitutes the third Alsatian case described in literature, and emphasizes the presence of this parasitic disease in Southern France.