Black and brown pigmentation of the oral mucosa can occur due to a multitude of non-
neoplastic causes. Endogenous or exogenous pigments may be responsible for oral …

Peutz–Jeghers syndrome is a rare autosomal dominant disorder. Approximately 1: 25,000 to
1: 280,000 cases are registered annually. The pathogenesis of the disease is based on the …

Peutz-Jeghers syndrome (PJS) is characterized by multiple hamartomatous polyps in the
gastrointestinal tract and mucocutaneous pigmentation. Here we present, a case of multiple …

Malignant tumors associated with Peutz-Jeghers syndrome: Five cases from a single surgical
unit - PMC Back to Top Skip to main content NIH NLM Logo Access keys NCBI Homepage …

Oral pigmentation refers to a pigmented lesion on the oral mucosa, caused by one or more
pigments that accumulate, resulting in tissue color change. Pigment lesions can vary in size …

The oral mucosa is frequently affected in childhood related to diverse diseases, which are
seen by varies disciplines. These are associated to different causes and may occur as …

Melanin is composed of 57% carbon, 9% nitrogen, 3.5% hydrogen, 30% oxygen and varying
amounts of sulfur and it is a non-haemoglobin derived pigment which is round in shape, and …