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 © 2001-2010, DermAtlas | Image Name: | Dermatographism_1_060601 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA | Category: | reactive erythema | ||
| Body Site: | back | Age: | 35 years | ||
| Contributor: | Franz Ritucci, MD | ||||
| Description: | linear wheals | ||||
| Comments: | This 34-year-old man complained of itchy skin. Symptoms worsened with scratching. Note the linear wheals resulting from scratching for this demonstration of dermatographism. He was healthy, on no medications, and had no recent history of allergies or infections. | ||||
 © 2001-2010, DermAtlas | Image Name: | dermatographism_1_060423 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA | Category: | reactive erythema / environmental injury | ||
| Body Site: | back | Age: | 19 years | ||
| Contributor: | Christoph U. Lehmann, MD | ||||
| Description: | linear edematous plaques | ||||
| Comments: | Chronic dermatographism began during middle school in this otherwise healthy 19-year-old woman. | ||||
 © 2001-2010, DermAtlas | Image Name: | physical_urticaria_1_051228 | File Type: | jpg | |
| Diagnosis: | URTICARIA / DERMATOGRAPHISM | Category: | environmental injury | ||
| Body Site: | buttock | Age: | 4 years | ||
| Contributor: | Daniil Munblit | ||||
| Description: | Linear wheal and flare | ||||
| Comments: | This 4-year-old boy developed urticaria following pressure to the buttock and thigh. | ||||
 © 2001-2010, DermAtlas | Image Name: | darier_sign_3_031110 | File Type: | jpg | |
| Diagnosis: | DARIER SIGN / MASTOCYTOMA / URTICARIA / DERMATOGRAPHISM | Category: | lumps & bumps (plaques, nodules, tumors) / reactive erythema | ||
| Body Site: | back | Age: | 6 months | ||
| Contributor: | Bernard Cohen, MD | ||||
| Description: | edematous brown plaque with surrounding red wheal | ||||
| Comments: | This healthy infant had a solitary mastocytoma on her back. Rubbing produced a brisk wheal and flare and edema of the mastocytoma. | ||||
 © 2001-2010, DermAtlas | Image Name: | Dermatographism_1_030908 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA | Category: | linear eruptions / environmental injury | ||
| Body Site: | forearm | Age: | 14 years | ||
| Contributor: | Shahbaz A. Janjua, MD | ||||
| Description: | pale red alphabetical wheals | ||||
| Comments: | An adolescent girl with a history of chronic urticaria demonstrated dramatic dermatographism on stroking the skin of her forearm. | ||||
 © 2001-2010, DermAtlas | Image Name: | dermatographism_1_030401 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA / HIVE | Category: | environmental injury / Iatrogenic disorders, child abuse, / linear eruptions | ||
| Body Site: | chest / abdomen | Age: | 4 months | ||
| Contributor: | Bernard Cohen, MD | ||||
| Description: | vertical linear red edematous plaques | ||||
| Comments: | This healthy boy developed physical urticaria after a viral upper respiratory infection. The vertical lesions were induced by diliberate rubbing by the examiner. | ||||
 © 2001-2010, DermAtlas | Image Name: | Urticaria_Dermographism_1_030406 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA / HIVE | Category: | demonstration / linear eruptions / factitial / self Induced disorders / psychodermatosis | ||
| Body Site: | back | Age: | 18 years | ||
| Contributor: | Shahbaz A. Janjua, MD | ||||
| Description: | linear wheals | ||||
| Comments: | This 18 year old boy with a history of chronic urticaria demonstrated dramatic dermatographism that persisted for 30 minutes after stroking his skin. | ||||
 © 2001-2010, DermAtlas | Image Name: | Dermatographism_1_020430 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA | Category: | linear eruptions / reactive erythema | ||
| Body Site: | back | Age: | 10 years | ||
| Contributor: | Edwin King, MD | ||||
| Description: | red linear wheals | ||||
| Comments: | This dramatic demonstration of dermatographism appeared 2 minutes after running a blunt object with mild pressure over the skin of this healthy child. The wheals began to fade 5 minutes later. | ||||
 © 2001-2010, DermAtlas | Image Name: | dermatographism_1_010729 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA / HIVE | Category: | reactive erythema | ||
| Body Site: | back | Age: | 48 years | ||
| Contributor: | Bernard Cohen, MD | ||||
| Description: | linear red wheals | ||||
| Comments: | A healthy 48 year old woman with a history of hives for 2 weeks demonstrated dramatic dermatographism. | ||||
 © 2001-2010, DermAtlas | Image Name: | dermatographism_1_010528 | File Type: | jpg | |
| Diagnosis: | DERMATOGRAPHISM / URTICARIA | Category: | reactive erythema | ||
| Body Site: | back | Age: | 9 months | ||
| Contributor: | Bernard Cohen, MD | ||||
| Description: | linear wheal after rubbing | ||||
| Comments: | A 9 month old girl with a history of urticaria associated with a viral infection presented for evaluation of persistent urticaria. She had no urticaria at the time of the examination but demonstrated dramatic dermatographism. | ||||
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