2013年9月1日 · CAM, also known as racial melanosis, is a benign lesion found among darkly pigmented individuals. It is typically observed around the limbus. On examination, the pigmentation appears flat and noncystic.

2023年8月29日 · Racial melanosis occurs in people with naturally dark skin color. In contrast to PAM, racial melanosis often affects both eyes and remains present throughout a person’s life. A nevus — the medical term for a simple eye freckle — can also occur on the conjunctiva.

BCEM, also referred to as conjunctival hypermelanosis, complexion-associated melanosis, or racial melanosis, is a non-cancerous lesion of the conjunctiva that is more commonly found in dark-skinned individuals (over 90% of lesions are found in …

As seen below, primary acquired melanosis typically affects one eye, in middle-aged, fair-skinned people. In contrast, darkly pigmented individuals often have naturally occurring pigment on their conjunctiva. When this occurs it is called racial melanosis.

Darkly pigmented conjunctival areas are seen in the right (A) and left (B) eyes of an 87-year-old African American woman with a history of glaucoma and bilateral trabeculectomy.

The condition is more common in blacks and Orientals than in other racial groups. Histopathologically, melanosis oculi is characterized by a diffuse increase in the number and size of uveal melanocytes, as well as the melanocytes in the sclera and episclera.

2023年11月7日 · Benign epithelial hypermelanoses of the conjunctiva include primary conjunctival melanosis, an example of which is complexion-related melanosis (formerly termed “racial melanosis”), and secondary (acquired) conjunctival hypermelanosis, which is most commonly linked to systemic conditions and certain medications.

Primary Acquired Melanosis Presentation. PAM is most likely to be observed in fair-skinned individuals who are middle-aged or older. On slit-lamp examination, a flat, unilateral, patchy, golden yellow to brown area of pigmentation is seen. Examination of the cornea may also reveal pigment. PAM is almost always unilateral.

Physiologic (racial) melanosis (Figure 14-3) is seen in 90% of black patients. 3 It can be congenital, and often presents early in life. PAM (Figure 14-4) is generally noted in middle-aged to older adults, 4,5 and is also more common in whites.

Racial and ethnic differences in melasma treatment patterns: a multi-institution study.