Related Experiment Video
Updated: Sep 18, 2025

Microscopic Replantation of Penile Glans Amputation Due to Circumcision
Published on: June 3, 2022
Kissing nevus or divided nevus of the uncircumcised penis in an Indian man
Prakhar Srivastava1, Vishvender Singh2, Prachi Srivastava3
1Department of Dermatology and STD, Pandit Madan Mohan Malviya Hospital, New Delhi, India.
Abstract:
Kissing nevi are rare congenital melanocytic nevi (CMN) that develop on adjacent skin areas separated during embryogenesis. We report a 25-year-old uncircumcised man with two asymptomatic brownish-black macules on the dorsolateral glans penis and inner foreskin, aligning as "kissing" lesions. Dermoscopy showed a structureless brown center with peripheral pigment globules. Their embryological origin involves melanoblast migration before or during preputial placode separation. While typically benign, rare cases of malignant transformation necessitate regular monitoring. Treatment options, including surgery and laser therapy, should balance functional and aesthetic considerations. This case highlights the clinical significance of this unique entity.
Related Concept Videos
Penis
Anatomy of the Penis
The glans penis, or the head, is the terminal part of the penis and houses the external urethral orifice, the exit point for urine and semen. Covered by the prepuce, or foreskin, the glans is noted for its sensitivity and plays a key role in sexual pleasure. The body of the...
Papillary Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...
Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Oral Cavity
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
External Female Genitals

