Presentation Patients with bug or insect bites seek medical help because of itching, secondary infection, or anxiety about secondary effects such as communicable diseases or infestation. Skin lesions generally consist of single or multiple pruritic wheals or papules, which may…
Presentation Occasionally patients will come in with a dead or captured spider after having rolled over it in bed or finding it in their clothing while dressing. They may have felt a minor pinprick sensation or no discomfort at all.…
Presentation Patients present with a very pruritic, eczematous-like rash at sites of skin exposure to allergens. Lesions may consist of small papules, vesicles, or bullae that may be confluent. Inflammation may exist with erythema, edema, oozing, or crusting. Dermatitis may…
Presentation Usually a child (or parent) has dressed (the child) too quickly and, possibly not wearing underpants, has accidentally pulled penile skin into his zipper ( Fig. 161.1 ). The skin becomes entrapped and crushed between the teeth and the…
Presentation The patient has fallen onto a coarse surface, such as a blacktop or macadam road. Most frequently, the skin of the face, forehead, chin, hands, and knees is abraded. When pigmented foreign particles are impregnated within the dermis, tattooing…
Presentation A patient comes to the emergency department or clinic with an earlobe torn by a sudden pull on an earring. Contributing factors might include previous lengthening of the earlobe hole because of long-term use of relatively heavy or dangling…
Presentation A patient is brought in by police officers after being subdued with a Taser. A Taser is a type of conducted electrical weapon (CEW) that fires two barbed darts using a compressed nitrogen charge. The darts penetrate light clothing…
Presentation A patient may present with focal tenderness, a palpable cord, and mild erythema over the course of a superficial vein. The risk factors for the development of a superficial venous thrombosis (superficial thrombophlebitis [ST]) are similar to those of…
Presentation After blunt trauma to the distal phalanx of any digit, a patient can develop a subungual hematoma. The hematoma is contained between the nail plate and the sterile matrix of the nail bed, which is highly vascularized. Unless artificial…
Presentation The patient had a mild to moderate crushing injury to a fingernail, such as being caught in a closing drawer or being struck by a heavy object. The pain was initially intense but rapidly subsided over the first few…