Common melanocytic nevus:Symmetrically structured melanocytic compound nevus of junctional and dermal cell nests with basal maturation coveredby papillomatous squamousepithelium. The nests are superficially discontinuously pigmented, accompanied by melanophages. The squamous epithelium is narrowed and with elongated reticules, covered by lamellar hyperkeratosis.
Extension along the hair follicles in strands, here partly neuroid cytomorphology of melanocytes.
Melanoma malignes superficially spreading: pigmentation mark known and growing for years. No subjective complaints. The melanoma grows asymmetrically (no axial symmetry) with irregular pigmentation and depigmentation zones.
Naevus verrucosus unius lateralis: Multiple, chronically inpatient, since birth existing, in recent years clearly raised, large-area plaques, running along the Blaschko lines and in a linear pattern, localized mainly on the right side of the body, sharply defined, firm, symptomless, grey-brown, rough, wart-like plaques in a 16-year-old adolescent of Mediterranean ethnicity.
Lyme borreliosis, late stage: symptomless, morphea-like, blurred plaques existing for several months. borrelia titer with highly specific bands positive. histo: diffuse, plasma cell-rich superficial and deep dermatitis. PCR: detection of borrelia antigens.
Nevus melanocytic congenital differential diagnosis: Becker nevus: During puberty and postpubertal increasing hairiness of a nevus previously only visible as a brown spot. No symptoms. Typical for the Becker nevus is the "frayed" demarcation to normal skin.
papillomatosis confluens et reticularis. since several years increasing discoloration and thickening of the skin of the sternoepigastric area. similar foci still exist on the trunk and neck. no other disease known.
Please login to access all articles, images, and functions.
Our content is available exclusively to medical professionals. If you have already registered, please login. If you haven't, you can register for free (medical professionals only).
Please complete your registration to access all articles and images.
To gain access, you must complete your registration. You either haven't confirmed your e-mail address or we still need proof that you are a member of the medical profession.