Abstract
Reed nevus (pigmented spindle cell nevus) is a nevus with the histopathological features of abundant melanin, monomorphic spindle-epithelioid melanocytes, spindle cell nests confined within the epidermis and papillary dermis, and occasional upward interepidermal progression of melanocytes. Here, we reported an unusual case of Reed nevus in an 11-month-old Japanese male infant. Infantile Reed nevus should be included as a differential diagnosis for nevus pigmentosus in infancy.
Highlights
Reed nevus is a nevus with the histopathological features of abundant melanin, monomorphic spindle-epithelioid melanocytes, spindle cell nests confined within the epidermis and papillary dermis, and occasional upward interepidermal progression of melanocytes
Reed nevus is an expansive, intensely and uniformly pigmented plaque or papule which generally occurs on the legs in twenties and thirties [1]
The histopathologic features of the most commonly used to distinguish Reed nevus from Spitz nevus include: 1) abundant melanin; 2) monomorphic spindle-epithelioid melanocytes; 3) spindle cell nests confined within the epidermis and papillary dermis; and 4) occasional upward interepidermal progression of melanocytes [3]
Summary
Reed nevus (pigmented spindle cell nevus) is an expansive, intensely and uniformly pigmented plaque or papule which generally occurs on the legs in twenties and thirties [1]. Some authors use the term to describe a distinct entity that differs from Spitz nevus, and others consider Reed nevus as a pigmented variant of Spitz nevus [1,2,3]. Caucasians is more frequently affected than Asian populations. We describe a Japanese infantile case of Reed nevus
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