Dermoscopic features of solitary neurofibroma: A retrospective analysis of 32 cases

Multispectral Imaging Analysis of Skin Lesions in Patients with Neurofibromatosis Type 1

Neurofibromatosis type 1 (NF1) is a rare disease, affecting around 1 in 3500 individuals in the general population. The rarity of the disease contributes to the scarcity of the available diagnostic and therapeutic approaches. Multispectral imaging is a non-invasive imaging method that shows promise in the diagnosis of various skin diseases. The device utilized for the present study consisted of four sets of narrow-band LEDs, including 526 nm, 663 nm, and 964 nm for diffuse reflectance imaging and 405 nm LEDs, filtered through a 515 nm long-pass filter, for autofluorescence imaging. RGB images were captured using a CMOS camera inside of the device. This paper presents the results of this multispectral skin imaging approach to distinguish the lesions in patients with NF1 from other more common benign skin lesions. The results show that the method provides a potential novel approach to distinguish NF1 lesions from other benign skin lesions.

Solitary neurofibroma over lower lip: A rare manifestation

Neurofibromas are common nerve sheath tumors, occurring either sporadically or associated with Von Recklinghausen’s disease. Only 6.5% of solitary lesions are seen to involve the oral cavity without any features of neurofibromatosis type 1 (NF-1). It presents as a soft, skin-colored nodule with a characteristic buttonhole invagination. Histologically, it is an unencapsulated lesion consisting of proliferated neural elements, with a background of mucin and mast cells. Surgical excision is the treatment of choice. A 49-year-old female patient presented with a 35-year history of single, asymptomatic lesion over the lower lip, with no features of NF-1. On the basis of the history, histopathological findings, and dermoscopy, a diagnosis of neurofibroma was made and the lesion was excised, with no recurrence over a period of 1 year. The present case report has been reported for its interesting presentation and unusual site of involvement.