Facial plexiform neurofibroma in a child with neurofibromatosis type I: a case report.

Plexiform neurofibroma is a non-circumscribed, thick and irregular benign tumor of the peripheral nerve sheath. It is a virtually pathognomonic and often disabling feature of neurofibromatosis type I. The diffuse and soft nature of plexiform neurofibroma is often compared to 'a bag of worms' and is difficult to distinguish from a vascular malformation or a lymphangioma, thus necessitating thorough clinical and histopathological examination and imaging of the lesion. We present a case of plexiform neurofibroma in a 12-year-old male child.

Extragingival pyogenic granuloma.

Pyogenic granuloma is a well-known localized granulation tissue overgrowth in reaction to mild irritation. Although it is known to show a striking predilection for the gingiva, it can be found extragingivally with varying clinical features that sometimes may mimic more serious lesions such as malignancies. The clinical diagnosis of such an uncommon extragingival pyogenic granulomra can be quite challenging. The purpose of this article is to report an unusual case of extragingival pyogenic granuloma occurring on the lower lip, which presented as a cutaneous horn.