Esophageal melanosis which is characterized by melanocytic proliferation in the squamous epithelium of the esophagus and melanin accumulatin of esophageal mucosa (EM) is a rare disease of the digestive system. Although esophageal melanosis is considered to be a benign disease, its etiology is not cleared and has been reported to be the precursor lesion of esophageal primary melanomas. In this r...

Melanic pigmentation results from melanin produced by the melanocytes present in the basal layer of the oral epithelium. One of the most common causes of oral pigmentation is smoker melanosis, a condition associated with the melanocyte stimulation caused by cigarette smoke. This paper aims to illustrate the use of a carbon dioxide laser in the removal of the gingival melanic pigmentation for ae...

The hereditary corneal dystrophies are remarkable in that only rarely do sufficient opacifications exist at birth or appear during infancy to merit both the prefix "congenital", i.e. a disturbance present at birth, and "dystrophy", i.e. a disturbance developing on a hereditary basis in apparently normal tissue. The term as used has referred to a bilateral symmetrical diffuse opacification of th...

The hereditary corneal dystrophies are remarkable in that only rarely do sufficient opacifications exist at birth or appear during infancy to merit both the prefix "congenital", i.e. a disturbance present at birth, and "dystrophy", i.e. a disturbance developing on a hereditary basis in apparently normal tissue. The term as used has referred to a bilateral symmetrical diffuse opacification of th...

Benign melanotic lesions of the vagina are uncommon and only a few cases have been reported in the literature. A 34-year-old woman was referred because of a Vaginal Intraepithelial Neoplasia 1 biopsy result. On the gynecological examination, two different hyperpigmented areas were noted in the vagina. The colposcopic visualization of the cervix and vagina found an aceto-white lesion at the righ...

BACKGROUND Vulvar melanosis is a benign pigmented lesion that may clinically mimic melanoma. Whereas the dermoscopic features of other pigmented skin lesions have been extensively described, little is known about vulvar melanosis. OBSERVATIONS A retrospective dermoscopic study was conducted on 87 lesions with histopathologically proved melanosis. We describe and define, for the first time to ...

n engl j med 368;24 nejm.org june 13, 2013 2303 A 50-year-old woman underwent colonoscopy for rectal bleeding. Her entire colon appeared dark brown and black, a finding consistent with the diagnosis of melanosis coli (Panel A). Random biopsy specimens from the descending colon revealed sheets and clusters of macrophages laden with brownish pigment in the lamina propria (Panel B, arrow). A tiny,...

Sir,?I am referring to a paper 'on p. 172 of the Indian Medical Gazette, April 1944, on 'Syphilitic melanoderma' where ycm state that in Becher and Obermayer no mention is made of syphilis as a cause of melanosis. In my book ' Histologie der Hautkrankheiten' Springer Verlag, Berlin 1925, Vol. I, p. 517, I do mention it and refer to Fourrier and to Unna as describing it as a rare type of the dis...