PCSCC is a variant of invasive squamous cell carcinoma, with less than 20 cases reported, to our knowledge, in the English literature [1,2]. PCSCC had been more often reported to occur in the oral mucosa and conjunctiva [3]. Pigmentation is probably due to cytokines secreted by tumoral cells that stimulate melanocytes to produce melanin [4]. In some cases, PCSCC may be the malignant progression...

Laugier-Hunziker syndrome is a rare benign condition characterized by diffuse oral hyperpigmentation associated with pigmentation of the nails. The syndrome must be included in the differential diagnosis of diffuse oral pigmentation to exclude other conditions with systemic implications. We describe a 43-year-old white woman with the clinical and histological features of Laugier-Hunziker syndro...

Cosmetic expectations have increased with time and current trends speak volumes about gingival esthetics and smile designing. Gingival pigmentation especially on the labial aspect of anterior teeth has become an important component of general esthetics. Various physiologic and pathologic factors cause gingival pigmentation. The existing indices do not deal with the etiology, extent and severity...

In two earlier papers21 23 it was reported that when melanoblasts of the Barred Plymouth Rock embryo were grafted into an embryo of a non-barred breed such as the N. H. Red, Black Minorca, and White Leghorn, two definite types of black and white barred patterns were produced in the host contour feathers. The black bands were wider and darker in one type than in the other. These pigmentation dif...

introduction: dark or black coloured gingiva is an esthetic concern especially in subjects with high lip line or gummy smile. gingival depigmentation procedure is a type of perioplastic surgery where the gingival epithelium is excised with various techniques to lighten the colour of the gingiva. the aim of this study was to compare the clinical efficacy of gingival depigmentation procedure with...

we describe a 69-year-old-woman with antecedent of breast cancer and recent transitory neurological symptoms. physical examination showed yellow to orange skin pigmentation, more conspicuous on her palms and soles, while discoloration changes were absent in the eye and oral mucous membranes. routine laboratory findings were not indicative of hemolytic anemia, liver or bile disorders, nephrotic ...

It is extraordinarily difficult to recognize a face in an image with negated contrast, as in a photographic negative. The variation among faces can be partitioned into two general sources: (a) shape and (b) surface reflectance, here termed 'pigmentation'. To determine whether negation differentially affects the processing of shape or pigmentation, we made two sets of faces where the individual ...

Pigmentation is both the normal and abnormal discoloration of oral mucous membrane. Pigmentation has multifactorial etiology. Most of the pigmentation is physiologic but sometimes it can be a precursor of severe diseases. Melanin pigment irregularities and color changes of the oral tissues could provide significant diagnostic evidence of both local and systemic disease. The differential diagnos...

Melasma is a complex multifactorial disorder whose pathogenesis is not well understood. In addition to increased pigmentation, increased vascularity associated with pigmentation is present. A variety of topical treatments targeting pigmentation are available with temporary improvement of mainly the epidermal components of melasma. Intense pulsed light (IPL) is a broadband light source that can ...

370 Indian Dermatology Online Journal | Volume 8 | Issue 5 | September‐October 2017 10. Grover S, Basu A. Idiopathic eruptive macular pigmentation: Report on two cases. Indian J Dermatol 2010;55:277‐8. 11. Verma S, Thakur BK. Idiopathic eruptive macular pigmentation with papillomatosis. Indian Dermatol Online J 2011;2:101‐3. 12. Begum A, Ramchandra BV, Kumar A. Idiopathic eruptive macular pigme...