Pathology
Images
Atlas of dermatopathology
Josef Feit, Hana Jedličková, Günter Burg, Luděk Matyska, Spasoje Radovanovic et al.
Index
Contents
Authors
ExpSys: non-tumors
ExpSys: tumors
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+ Introduction
+ Literature
+ Support
+ Skin biopsy
+ Non-tumorous skin diseases
+ Skin tumors
+ Cysts of the skin and subcutis
+ Soft tissue lesions
+ Some lesions of the oral cavity
+ Dermatovenerology
+ Collection of histological slides by prof. Günter Burg
+ Collection of histological slides by prof. Werner Kempf
+ Collection of histological slides of dr. Ram Chandra Adhikari
Compound melanocytic nevus
Clinical signs
  • variably pigmented papule
  • size varies, from milimeters to many centimeters
  • the surface is sometimes hairy
  • different types: flat papules (esp. on the back), polypoid lesions (abdomen, lateral aspects of the trunk), firm, domed papules (face)
Histology

Melanocytic lesion with junctional part (intraepidermal nests) and dermal part (dermal nests of melanocytes). The dermal melanocytes usually mature (their size decreases downward, sometimes neuroid transformation is present). The lesion is symmetric, borders are sharp.

Nevi on palms or soles (acral nevi) can have some melanocytes scattered intraepidermally. Transcutaneous elimination of pigment is regular (columns) and lateral borders are sharp.

Compound melanocytic nevus (6337)

Pictures

Compound melanocytic nevus: Melanocytic nevus, compound, HE 40x (12536) Melanocytic nevus, compound, HE 40x (12535)

Compound melanocytic nevus: Melanocytic nevus, compound, HE 40x (2188)

Another case: Melanocytic nevus, compound, HE 40x (2563)

Another case: Melanocytic nevus, compound, HE 40x (2738)

Another case: Melanocytic nevus, compound, HE 60x (6337)

Another case: Melanocytic nevus, compound, HE 40x (3580)

Another case: Melanocytic nevus, compound, HE 40x (4835)

Another case: Compound melanocytic nevus, HE 40x (10888)

Compound melanocytic nevus with dysplastic features: Melanocytic nevus, compound, dysplastic, HE 40x (12716)

Compound melanocytic nevus with transcutaneous elimination of melanin: Melanocytic nevus, compound, with transepidermal elimination of melanin, HE 40x (2567)

Junctional nevus, sole (acral): Acral nevus (sole), HE 40x (6001)

Compound melanocytic nevus, sole: Melanocytic nevus, compound, sole, HE 40x (2309)

Compound melanocytic nevus, palm: Melanocytic nevus, compound, palm, HE 40x (4872)

Compound melanocytic nevus, skin graft: Melanocytic nevus, compound, of the skin graft, HE 20x (4000) Melanocytic nevus, compound, of the skin graft, HE 40x (4001)

Compound melanocytic nevus and seborrhoic keratosis: Compound melanocytic nevus and seborrhoic keratosis, HE 20x (13846)