Pathology
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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
Dermatomyositis
Clinical signs
  • location: most often face, hands, trunk
  • heliotropic periorbital erythema
  • Gottron's papules over metacarpophalangeal joints
  • erythemas of the trunk and extremities
  • hyperkeratoses of lateral aspects of the forefinger, so called sign of a mechanic
Pictures

Dermatomyositis, Gottron's papules: Dermatomyositis, Clinical picture (714)

Dermatomyositis: Dermatomyositis, Clinical picture (4174) Dermatomyositis, hands, Clinical picture (4177)

Paraneoplastic dermatomyositis: Dermatomyositis, paraneoplastic, forehead, Clinical picture (4175) Dermatomyositis, paraneoplastic, thorax, Clinical picture (4176)

Further examples of dermatomyositis:

Histology

The picture is that of lupus erythematosus; epidermis is normal or atrophic; dermal edema and increased acid mucopolysaccharides; slight perivascular lymphocytic infiltrate. Old lesion sometimes calcify.

Pictures

Dermatomyositis: Dermatomyositis, HE 40x (2272) Dermatomyositis, HE 100x (2270) Dermatomyositis, HE 100x (2271)

The same case, skeletal muscle biopsy: Dermatomyositis, muscle, HE 40x (2274) Dermatomyositis, muscle, acid phosphatase 40x (2275) Dermatomyositis, muscle, MAC 40x (2273)

Another case, with focal atrophy of the epidermis: Dermatomyositis, HE 40x (4075)

Dermatomyositis, Gottron's papules: Gottron's papule, dermatomyositis, HE 60x (14181)

Another case of dermatomyositis, immunofluorescence: Dermatomyositis, HE 40x (3480) Dermatomyositis, HE 40x (3479) Dermatomyositis, anti-fibrin, FITC 20x (3481) Dermatomyositis, anti-IgM, FITC 20x (3482) Dermatomyositis, anti-fibrin, FITC 40x (3483)

Paraneoplastic dermatomyositis, skin, muscle and low differentiated serous cystadenocarcinoma of the ovary: Dermatomyositis, paraneoplastic, HE 40x (6220) Dermatomyositis, paraneoplastic, HE 40x (6221) Dermatomyositis, paraneoplastic, HE 40x (6227) Dermatomyositis, paraneoplastic, NADH 20x (6226) Dermatomyositis, paraneoplastic, ATP 20x (6222) Dermatomyositis, paraneoplastic, HLA 20x (6223) Dermatomyositis, paraneoplastic, acid phosphatase 20x (6224) Dermatomyositis, paraneoplastic, MAC 20x (6225) Cystadenocarcinoma ovarii, serous, HE 40x (74054)

Another case of dermatomyositis, immunofluorescence: Dermatomyositis, HE 40x (3513) Dermatomyositis, HE 40x (3514) Dermatomyositis, anti-IgG, FITC 20x (3516) Dermatomyositis necalcifying, early, anti-IgG, FITC 20x (3517) Dermatomyositis necalcifying, early, anti-IgM, FITC 20x (3518) Dermatomyositis necalcifying, early, anti-IgG, FITC 20x (3519)

Dermatomyositis, widespread calcifications: Dermatomyositis, calcifications, HE 10x (204)

Dermatomyositis: Dermatomyositis, HE 20x (4228) Dermatomyositis, HE 60x (12004)

Dermatomyositis: Dermatomyositis, HE 40x (4886)

Dermatomyositis, acute, with edema of papillary dermis: Dermatomyositis early, HE 20x (4452)

Dermatomyositis: Dermatomyositis, HE 40x (12809)

Dermatomyositis, slight changes: Dermatomyositis, HE 60x (10661) Dermatomyositis, HE 60x (10662)