All cases in Dermatoses due to Physical Agents

Shrapnel’s injury

Shrapnel’s injury

History

          First look to the presented image may give you an impression that this is a case of nevus comedonicus. However, this boy unfortunately had been subjected to shrapnels’ (shells) injury caused by a nearby bomb’s blast  two months prior to the presentation. On close examination many black dots and spots intermingled with many atrophic scars confined to one side of the anterior trunk.
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Post-cautery keloid

Post-cautery keloid

History

         A 20-year-old male had a few grouped lesions of molluscum contagiosum on the neck of 3-4 weeks duration. The lesions had been removed aggressively through electrocautery by an unexperienced medical substaff person. Few weeks later a large pinkish-red, ugly-looking scar appeared at site of cautery.
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Cornu cutaneum

Cornu cutaneum

History

          A 67-year-old man presented with an about 2.5 cm long asymptomatic cutaneous horn arouse from a hyperkeratotic base involved the middle part of the auricle of many years duration. Excisional biopsy showed actinic keratosis at the base of the horn.
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Actinic Porokeratosis

Actinic Porokeratosis

History 

         A 22-year-old female presented with multiple, scaly, annular plaques with slightly elevated keratotic rims with central grooves on the central part of the face especially on the nose of three months duration. Cornoid lamella was evident on histological examination of skin biopsy.
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