Keratosis seborrhoeic (overview) Images

Verruca seborrhoica: General view: On the left side of the picture a 10 x 7 mm large, brown-black, broadly basal knot with a verrucous, fissured surface on the forehead of an 81-year-old female patient.

Verruca seborrhoica. soft, raised, grey-brown to black papules and plaques with a fissured, warty surface, interspersed with black horn stoppers. variable size, from a few mm to about 1.2 cm in diameter. disseminated appearance.

Keratosis seborrhoeic: flat, gradually growing dissected brown plaque with a slightly punched surface, known for years. no discomfort. no bleeding

Verruca seborrhoica. chronically stationary, solitary, brown to brown-black, exophytic node with wart-like surface, which has not been growing for years. in places a brown horn material can be easily detached from the surface.

Verruca seborrhoica: Multiple, brown-black, attached papules, plaques and nodes in the area of the trunk.

Verruca seborrhoica: multiple Verrucae seborrhoicae. continuous development since the 4th decade of life.

verruca seborrhoica: multiple verrucae seborrhoicae. continuous development since the 4th decade of life. findings: densely standing, 0.2-1.0 cm large, yellowish also brownish flat papules. individual seborrhoeic keratoses itch repeatedly. no clinically detectable inflammatory symptoms.

keratosis seborrhoeic: multiple flat wart-like skin growths that have persisted for years. arrows mark smaller, flat, light brown seborrhoeic keratoses. encircled: verucosal plaques or nodules that have existed for a long time (several years). patient complains of itching at times.

verruca seborrhoica. multiple verrucae seborrhoicae, here as a familial disease. densely standing, mostly pinhead-sized, brownish flat papules aggregated in places. occasionally itching. clinically morphologically no inflammatory symptoms detectable (see below dermatosis papulosa nigra).

Verruca seborrhoica: multiple Verrucae seborrhoicae. continuous development since the 4th decade of life. detailed view

verruca seborrhoica

Verruca seborrhoica: General view: For many years a 7 x 5 mm large, brown-black tumor on the left scapula of an 83-year-old female patient.

Keratoses seborrhoeic: multiple skin-colored flat wart-like papules and plaques. occasional itching.

Verruca seborrhoica: brown-black, medium-strength knot with felted surface.

Verruca seborrhoica: brown-black, broad-based, medium-strength node with a fielded surface.

Verruca seborrhoica. 56 year old patient with differently configured and colored disseminated papules and plaques localized on the trunk. 0.2-1.5 cm tall, flat raised (as if glued on), yellow, yellow-brown or brown-black papules or plaques with a smooth, shiny surface, which is broken up by numerous black horn inclusions, giving Verruca seborrhoica a surface characteristic that looks like punched.

Verruca seborrhoica, calotte-shaped, black-brown knot with irregular surface fields, looking as if glued on.

Verruca seborrhoica. detail magnification: 10 x 7 mm, non-itching, greyish-brown, broad-based plaque with a verrucous, fissured surface. above the tumour there is an artificially caused erythema.

Verruca seborrhoica: brown, medium-strength knot with felted surface.

Verruca seborrhoica.

Verruca seborrhoica. brown-black knot with smooth surface and single broken horn cones.

verruca seborrhoica

Verruca seborrhoica, approx. 8 x 5 mm in size, raised, grey-brown, broad plaque on the lower surface with a jagged, warty surface.

Keratoses seborrhoeic: Multiple different sized,seborrhoeic tumors with a porous surface.

Keratosis seborrhoeic: multiple, flat, light brown raised areas with a verrucous surface.

Keratosis seborrhoeic: Detailed picture of a new formation existing for about 1 year; occasional itching.

Keratosis seborrhoeic: colourful mixture of younger and olderseborrhoeic keratoses.

Verruca seborrhoica. reflected light microscopy: Exophytically growing verruca seborrhoica manifested in the upper thoracic region for several years in a 51-year-old female patient. blurred, deep brown tumor. numerous pseudohorn cysts, shown as differently sized, round, light brown spots. upper right: telangiectasia. in the surrounding area irregular pigment network with telangiectasia as an expression of a pronounced solar exposure.

Verruca seborrhoica. acanthotic type. broad-based, exophytic tumor, no infiltrating growth; appears as "put on". numerous, almost ideally round pseudohorn cysts. low surface keratinization. at the base, an inflammatory infiltrate of varying density is visible.

Verruca seborrhoica. acanthotic type; proliferation of relatively monomorphic, basaloid epithelial cells; to the surface, spindle cell differentiation with formation of a str. granulosum; slight surface keratinization. several larger pseudohorn cysts. the upper part of the figure shows complete orthokeratotic keratinization with preserved thin granular layer.

Verruca seborrhoica. acanthotic type with basaloid cell differentiation (small, compact cell type with roundish, often chromatin dense nuclei). At the lower edge of the picture, middle/right, an incised papilla with loose connective tissue and a dilated capillary with erythrocyte cluster are visible. Low round cell infiltrate.

verruca seborrhoica. general view of a verruca seborrhoica of the hyperkeratotic type. upwardly directed, sawtooth-like surface relief with high, extended papillae. massive orthohyperkeratosis; focal parakeratosis cones (see middle third of the figure). epithelium with spindle cell differentiation, continuous formation of a str. granulosum.

verruca seborrhoica. detail enlargement of a verruca seborrhoica of the hyperkeratotic type. spindle cell differentiation with narrow str. granulosum. firmly adherent, compact horny layer

Verruca seborrhoica. clonal type (epithelioma, intraepithelial): Strong, irregular acanthosis and papillomatosis in orthohyperkeratosis. clearly separated intraepithelial nests with adenoidal epithelial structures.

Verruca seborrhoica. clonal type (epithelioma, intraepithelial): Detail of the above figure: Sharply defined nests with cerebriform epithelial proliferates from regular cells with eosinophilic cytoplasm.