Showing 41-60 of 84 for: Essential Evidence Topics > Dermatologic 
- Hyperhidrosis and excessive sweating
Essential Evidence Topics, 8-Jul-2022
Overall Bottom Line: Primary hyperhidrosis is excessive bilateral sweating either of the palms, soles, axillae, or craniofacial region for at least 6 months. It is important to rule out secondary causes of hyperhidrosis before beginning treatment, parti
- Impetigo
Essential Evidence Topics, 29-Jun-2021
Overall Bottom Line: The diagnosis is usually made on clinical findings. Gram stain and culture are usually not necessary. Mupirocin 2% ointment and fusidic acid (not available in the United States) are as, if not more, effective than oral antibiotics a
- Incision and drainage of skin abscess (procedure)
Essential Evidence Topics, 21-Oct-2022
Indications for Procedure: Drainage of a carbuncle, furuncle, and other skin abscess (a localized collection of purulence).
- Kaposi's sarcoma
Essential Evidence Topics, 20-Jul-2022
Overall Bottom Line: Kaposi's sarcoma (KS) is a low-grade multifocal vascular tumor; typical skin lesions are multifocal, asymmetrically distributed, and nonpruritic. For a patient newly diagnosed with KS, exclude underlying human immunodeficiency virus
- Keloid scarring
Essential Evidence Topics, 31-Dec-2021
Overall Bottom Line: Identify at-risk patients by obtaining personal and family history of keloid formation. Also consider age, race and anantomic area. Weak evidence supports the use of silicone gel sheets and intralesional corticosteroid injections
- Leukocytoclastic vasculitis
Essential Evidence Topics, 18-Aug-2021
Overall Bottom Line: Suspect leukocytoclastic vasculitis (LCV) in patients with palpable purpura of the lower extremities. This is often self-limited and confined to the cutaneous superficial vascular plexus. Systemic involvement should be ruled out. A
- Lichen planus
Essential Evidence Topics, 8-Aug-2022
Overall Bottom Line: Consider a diagnosis of lichen planus (LP) in middle-aged patients who present with bilateral, symmetric, reticular, atrophic, or erosive oral lesions with or without coexisting pruritic, planar, polygonal, purple papules and plaques
- Lichen sclerosus
Essential Evidence Topics, 3-Feb-2023
Overall Bottom Line: Common symptoms of lichen sclerosus (LS) include pruritus, pain, and/or dyspareunia. Skin punch biopsy in the most sclerotic area of the lesion is usually diagnostic. Ulcerated or vegetative lesions should also be biopsied to rule o
- Lichen simplex chronicus
Essential Evidence Topics, 8-Aug-2022
Overall Bottom Line: Suspect lichen simplex chronicus (LSC) in a patient presenting with a pruritic, well-demarcated, lichenified plaque at a site habitually scratched or rubbed. Topical corticosteroids are the mainstay for the symptomatic treatment of
- Lymphadenitis and lymphangitis
Essential Evidence Topics, 27-May-2021
Overall Bottom Line: Attempt to isolate and treat the underlying cause of acute lymphadenitis. Local or systemic infections frequently result in enlarged lymph nodes. Obtain a fine needle aspiration if fluctuance or abscess is suspected, or excisional b
- Merkel cell carcinoma
Essential Evidence Topics, 28-Jul-2021
Overall Bottom Line: Examine closely any asymptomatic flesh-colored, pink, red, or blue lesion that a patient states is changing in size, shape, symptoms (itching, tenderness) and is growing rapidly on sun-exposed skin. Perform a full-thickness excision
- Milia
Essential Evidence Topics, 7-Jan-2022
Overall Bottom Line:
- Molluscum contagiosum
Essential Evidence Topics, 23-Sep-2021
Overall Bottom Line: Molluscum contagiosum typically presents as single or multiple clusters of pearly, dome-shaped, umbilicated papules. Since molluscum is self-limited, watchful waiting appears to be the best management option for mild, uncomplicated,
- Necrotizing fasciitis
Essential Evidence Topics, 31-Jul-2021
Overall Bottom Line: Suspect necrotizing fasciitis (NF) when a patient presents with cellulitis and pain out of proportion to the severity of the lesion, signs of systemic toxicity (hypotension, tachycardia, and hyperthermia), bullae, patches of cutaneous
- Onychomycosis
Essential Evidence Topics, 26-Jan-2022
Overall Bottom Line: Consider a diagnosis of onychomycosis when evaluating dystrophic nails characterized by hypertrophy (thickening), discoloration, onycholysis (nail plate and bed separation), and subungual debris in a patient with tinea pedis. Clinic
- Paronychia
Essential Evidence Topics, 17-Jul-2022
Overall Bottom Line: Consider the diagnosis of acute paronychia in patients presenting with tenderness, erythema, swelling, and sometimes fluctuance or induration of the proximal or lateral nail folds. Chronic paronychia is characterized by symptoms prese
- Pediculosis (lice)
Essential Evidence Topics, 24-Jun-2022
Overall Bottom Line: Visualization of the live adult lice or nymphs in the hair or on clothing is diagnostic. Pediculicides are generally equivalent, and the choice among formulations () is based on local resistance patterns. Topical occlusive therapi
- Pemphigus and pemphigoid
Essential Evidence Topics, 23-Jul-2022
Overall Bottom Line: Consider a diagnosis of pemphigus or pemphigoid in patients with cutaneous or mucosal blisters, erosions, papules, plaques, or crusts. The presence of intraepidermal acantholysis on histologic evaluation of mucosal lesions is highly
- Phimosis and paraphimosis
Essential Evidence Topics, 26-Dec-2022
Overall Bottom Line: Most cases of phimosis are physiologic and no intervention is needed. In boys with phimosis, a 4-week trial of medium potency steroid cream may be considered. Patients with scarring of the prepuce, painful erections, or who are 15
- Pityriasis alba
Essential Evidence Topics, 1-Feb-2021
Overall Bottom Line: Suspect pityriasis alba in atopic school-age children presenting with irregular hypopigmented patches and macules with fine scale of the face and extremities, accentuated by sun exposure. Reassure parents that pityriasis alba is a c
