Pictures
Scar after excision of a basalioma with disruption of the cartilage (ear):
Scar after excision of the basalioma, HE 20x (3492)
Superficial scar:
Scar, superficial, HE 40x (4827) [zoomify]
Scar:
Scar, HE 40x (5448)
Scar:
Scar, HE 40x (10939)
Scar, granulomatous inflammation:
Scar, granulomatous, HE 40x (10194)
Scar after biopsy, ear:
Scar after probatory excision, ear, HE 20x (4798) [zoomify]
Scar with hemosiderin deposits:
Scar with deposits of hemosiderin, Prussian blue 60x (6441)Scar with deposits of hemosiderin, HE 60x (6442)
Clinical signs:
Pictures
Cauterisatio, lysol (lye)
Cauterizatio, CLINIC (678)
Cauterisatio, persteril (peracetic acid)
Cauterizatio, CLINIC (679)
Clinical signs:
Pictures
Scalding, keloid scars:
Combustio, CLINIC (682)
Combustio bullosa:
Combustio bullosa, CLINIC (2839)Combustio bullosa, CLINIC (2840)
Further examples of thermal injury:
Histology:
Arteficial changes of the cells (elongated cells or cell nuclei), necrosis, inflammation, reparation.
Pictures
Acute deep burn (death in fire), no signs of reparation:
Thermal burn, HE 40x (5280)
Healing burn caused by CO2 laser:
Laser burn, HE 20x (4746) [zoomify]
Skin defect and scar after burn:
Scar after burn, HE 40x (4769)
Clinical signs:
Pictures
Frostbite, ear, 2nd grade: erythema, edema, bulla:
Congelatio, CLINIC (691)
Perniones:
Pernio, CLINIC (5822)Pernio, CLINIC (5823)
Further examples of pernio:
Histology:
Acute frostbire, 3rd grade: necroses, vital reaction (inflammation). After cryalisation is the tissue necrotic.
Pictures
Pernio:
Pernio, HE 20x (4935) [zoomify]
Pernio:
Pernio, HE 20x (5390)
Pernio:
Pernio, HE 20x (5391)
Cryalisation of the basalioma, followed by resection:
Cryocoagulated bazalioma, HE 40x (6071)
Epidermal necrosis caused by liquid nitrogen (medical treatment):
Liquid nitrogen necrosis, HE 20x (13877)
Etiology:
Caused by prolonged exposure to heat.
Clinical signs:
Introduction:
Skin lesion, caused by the patient itself.
Clinical signs:
Pictures
Artificial dermatitis, abdomen (rectangular shape of the lesion)
Dermatitis artefacta, CLINIC (705)
Clinical signs:
Arteficial lesion, caused by young girl on purpose by cooling her skin by closely positioned spray.
Histology:
Superficial areas of the epidermis are necrotic, homogenous, eosinophilic, partially detached.
Pictures
Arteficial dermatitis, spray:
Arteficial dermatitis (close spray), HE 60x (12970)
Clinical signs:
Posttraumatic extravasation of blood into soft tissues.
Pictures
Subungual hematoma:
Haematoma subungualis, CLINIC (2972)Haematoma subungualis, CLINIC (2973)
Histology:
Bleeding within the tissue (dermis, fat).
Pictures
Hematoma:
Haematoma, posttraumatic, HE 20x (5267)
Introduction:
Caused by damage of the skin by irradiation, usually during actinotherapy of malignant tumors.
Pictures
Further examples of radiodermatitis are in the chapter in:
Clinical signs:
Pictures
Radiodermatitis acuta
Radiodermatitis acuta, CLINIC (907)
Betatron reaction:
Betatron reaction, HE 40x (1963)
Histology:
Vesicles, ulcerations, erosions.
Pictures
Acute ulcerating radiodermatitis:
Radiodermatitis acute ulcerating, HE 40x (10152)Radiodermatitis acute ulcerating, HE 40x (10153)
Clinical signs:
Pictures
Chronic radiodermatitis following radiotherapy of the breast:
Radiodermatitis late, CLINIC (908)
Chronic radiodermatitis:
Radiodermatitis late, CLINIC (3319)Radiodermatitis late, CLINIC (3320)Radiodermatitis late, CLINIC (3321)Radiodermatitis late, CLINIC (3322)
Histology:
Epidermis is atrophic, dermis with sclerosis and hyalinisation, hair adnexa are lost, eccrine glands are atrophic. Dilated blood vessels and scattered fibroblasts with large, polymorphous nuclei. Focal pigment incontinence is sometimes present. Epidermis may be dysplastic.
Pictures
Radiodermatitis, chronic:
Radiodermatitis late, HE 10x (2034)Radiodermatitis late, HE 40x (2035)
Another case:
Radiodermatitis late, HE 20x (5251)Radiodermatitis late, HE 5x (1658)Radiodermatitis late, HE 10x (1824)Radiodermatitis late, HE 40x (1659)
Another case:
Radiodermatitis late (after radiotherapy), HE 20x (2565)
Another case, late radiodermatitis:
Radiodermatitis late, HE 20x (4592) [zoomify]
Chronic radiodermatitis:
Radiodermatitis, chronic, HE 40x (6122)
Chronic radiodermatitis:
Radiodermatitis late, HE 20x (5252)
Chronic rentgendermatitis:
Radiodermatitis late, HE 60x (12123)
Chronic radiodermatitis:
Radiodermatitis late, HE 20x (5253)
Skin of the scalp, chronic radiodermatitis, squamous cell carcinoma and fibrosarcoma
(HE, AE13, CD10, CD34, MelanA, S100, vimentin):
Radiodermatitis late, HE 60x (13602)Chronic radiodermatitis, fibrosarcoma, head, HE 60x (13610)Chronic radiodermatitis, fibrosarcoma, head, HE 60x (13609)Chronic radiodermatitis, fibrosarcoma, head, AE13 20x (13603)Chronic radiodermatitis, fibrosarcoma, head, CD10 20x (13604)Chronic radiodermatitis, fibrosarcoma, head, CD34 20x (13605)Chronic radiodermatitis, fibrosarcoma, head, Melan A 20x (13606)Chronic radiodermatitis, fibrosarcoma, head, S100 20x (13607)Chronic radiodermatitis, fibrosarcoma, head, vimentin 20x (13608)
Introduction:
Phototoxic dermatitis is caused by contact or ingestion of some photosensitizing substance. Phytophotodermatitis affects anyone, who gets in contact with some plants containing furocoumarins and later gets exposed to sunlight (dermatitis striata praetensis of Hebra).
Photoallergic dermatitis appears after exposure to some photosensitizing agent (usually drugs) applied on the skin and following exposure to sunlight. The reaction develops in senzitized persons by delayed hypersensibility reaction.
Acute solar dermatitis is caused by severe UV irradiation of a sensitive skin. In phototoxic and protoallergic reactions some photosensibilizing agens is effective as well (some drugs, desinfecting agents, various plants etc.)
Polymorphous solar eruption affects insolation areas, more often women; prutitus, papules, vesicles.
Dermatitis vernalis aurium Dermatosis of the auricles. Affects young people at spring, caused by sunshine combined with cold.
Actinic reticuloid form of a chronic actinic reaction.
Solar urticaria immediate urticarial response to sunshine
Hydroa vacciniforme rare disease of children, characterized by hemorrhagic blisters and necroses
Clinical signs:
Pictures
Positive biodosis 1 – 5 minutes:
Solar reaction, CLINIC (709)
Dermatitis solaris, 1st grade: erythema:
Solar reaction, CLINIC (710)
Dermatitis striata praetensis, hand, blisters:
Solar reaction, CLINIC (711)
Dermatitis striata praetensis, thighs, stripes caused by plants:
Solar reaction, CLINIC (712)
Erythema solare:
Erythema solare, CLINIC (2919)Erythema solare, CLINIC (2920)
Erythema solare:
Erythema solare, CLINIC (2921)Erythema solare, CLINIC (2922)Erythema solare, CLINIC (2923)Erythema solare, CLINIC (2924)
Phytophotodermatosis, dermatitis praetensis:
Phytophotodermatosis, CLINIC (3227)Phytophotodermatosis, CLINIC (3230)Phytophotodermatosis, CLINIC (3231)Phytophotodermatosis, CLINIC (3232)Phytophotodermatosis, CLINIC (3233)Phytophotodermatosis, CLINIC (3234)Phytophotodermatosis, CLINIC (3235)Phytophotodermatosis, CLINIC (3236)Phytophotodermatosis, CLINIC (3219)Phytophotodermatosis, CLINIC (3220)Phytophotodermatosis, CLINIC (3221)Phytophotodermatosis, CLINIC (3222)Phytophotodermatosis, CLINIC (3223)Phytophotodermatosis, CLINIC (3224)Phytophotodermatosis, CLINIC (3225)
Bullous phytophotodermatosis, leg:
Phytophotodermatosis, CLINIC (3226)Phytophotodermatosis, CLINIC (3229)
Dermatitis vernalis aurium:
Dermatitis vernalis aurium, CLINIC (5572)Dermatitis vernalis aurium, CLINIC (5573)Dermatitis vernalis aurium, CLINIC (5574)
Further examples of dermatitis solaris:
Further examples of photodermatoses:
Histology:
Phototoxic dermatitis: dyskeratosis, necroses (in less severe forms of individual keratinocytes only). Alteration of the basal layer.
Photoallergic dermatitis is characterized by spongiosis, dyskeratosis, perivascular lymphocytic infiltrate with variable admixture of neutrophils.
Polymorphous light eruption: variable picture, some spongiosis, usually scattered necrotic or dyskeratotic keratinocytes, variable vacuolar degeneration; dermal edema; perivascular lymphocytic infiltrate; sometimes extravasation of erythrocytes. Sometimes subepidermal or intraepidermal vesicles.
Pictures
Phototoxic dermatitis:
Phototoxic light eruption, HE 20x (5231)Phototoxic dermatitis, HE 10x (1815)Phototoxic dermatitis, HE 20x (1816)Phototoxic dermatitis, HE 40x (1817)
Another case of phototoxic dermatitis:
Phototoxic dermatitis, HE 20x (4578)Phototoxic dermatitis, HE 20x (1818)
Another case of phototoxic dermatitis:
Phototoxic dermatitis, HE 20x (5241)
Another case of phototoxic dermatitis:
Phototoxic light eruption, HE 20x (4926) [zoomify]
Another case of phototoxic dermatitis:
Phototoxic bullous dermatitis, HE 60x (12036)
Polymorphous light eruption:
Polymorphous light eruption, HE 40x (2037)
Photoallergic reaction:
Photoallergic dermatitis, HE 20x (4577)
Polymorphous light eruption:
Polymorphous light eruption, bullous, HE 20x (4936) [zoomify]
Clinical signs:
Pictures
Berloque dermatitis:
Berloque dermatitis, CLINIC (5549)Berloque dermatitis, CLINIC (5550)
Another case:
Berloque dermatitis, CLINIC (5547)Berloque dermatitis, CLINIC (5548)
Clinical signs:
Pictures
Squamous cell carcinoma of the lower lip, in addition solar elastosis with cysts and comedones in the skin (Syndrome of Favre Racouchot):
Squamous cell carcinoma of the lower lip, solar elastosis, cysts and comedones (Favre Racouchot), Macro (3722)Squamous cell carcinoma of the lower lip, solar elastosis, cysts and comedones (Favre Racouchot), Macro (3723)Squamous cell carcinoma of the lower lip, solar elastosis, cysts and comedones (Favre Racouchot), Macro (3724)Squamous cell carcinoma of the lower lip, solar elastosis, cysts and comedones (Favre Racouchot), Macro (3725)Squamous cell carcinoma of the lower lip, solar elastosis, cysts and comedones (Favre Racouchot), Macro (3726)Squamous cell carcinoma of the lower lip, solar elastosis, cysts and comedones (Favre Racouchot), Macro (3727)Squamous cell carcinoma of the lower lip, solar elastosis, cysts and comedones (Favre Racouchot), Macro (3728)
Histology:
Dilated follicular ostia, cystic comedones, atrophy of the epidermis, solar elastosis, sometimes papillomatosis
Pictures
Favre-Racouchot syndrome:
Favre Racouchot syndrome, HE 20x (5139) [zoomify]Favre Racouchot syndrome, HE 20x (5132) [zoomify]Favre-Racouchot syndrome, HE 5x (1288)Favre-Racouchot syndrome, HE 10x (1289)
Favre-Racouchot syndrome:
Favre Racouchot syndrome, HE 60x (10030)
Introduction:
UV radiation:
200 — (UVC) — 280 — (UVB) — 320 — (UVA) — 400
UVA causes mainly pigmentation, UVB has inflammatory effect followed by pigmentation. UV irradiation of the skin can be used for therapy. Sensitivity of the skin to sunshine is highly individual. Main changes to the skin caused by UV irradiation are: