Infectious Disease

A 67-year-old woman noted the appearance of several non-tender, rock-hard, purple-colored nodules on her legs. Her past medical history was significant for distant non-Hodgkin lymphoma.

A boil, painful and nasty: Is it a cyst? Is it a bug bite? Should you culture? Is it MRSA? How should you treat it? What if it recurs? Listen and learn.

A 32-year-old woman presents with a swollen, painful fourth digit on the right hand. While housecleaning, a traumatic erosion developed on the ipsilateral hyponychium.

Would you treat the elevated A1C aggressively-and what would your target level be? Would you consider statins? Dr Shahady invites your insights.

Here: a review of the potential health effects of bed bugs, diagnosis and treatment, and comments about future directions in bed bug control and public health efforts to manage the pest.

What is causing this clubbing of the fingernails, and what is it called?

A 45-year-old woman noted painless, red, crusted papules on the hand. This was followed by the appearance of deep, slightly tender red nodules on the arm and ipsilateral axillary adenopathy.

A 92-year-old woman presented with a 6-month history of progressively worsening fatigue, weight loss, generalized bone pain, and dyspnea on exertion. A skeletal survey found lytic lesions in the pelvis, sacrum, and calvarium (shown here).

With no history of papulosquamous skin disease (eg, psoriasis), a solitary, well-demarcated, bright red scaly patch should suggest either superficial basal cell or in situ squamous cell carcinoma.

Did you know: The hepatitis B virus is the only human virus that is routinely tested for by measuring a marker, or “footprint,” of the virus in the blood? Here, an explanation for this and 4 more things you need to know about HBV.

Obtain an accurate food/water ingestion history; be suspicious of bacteria, protozoa, and environmental toxins; educate patients on good kitchen hygiene. Here, a few more essentials to keep in mind when you suspect a foodborne illness.

An 82-year-old woman presents with a persistent “face sore,” which she ascribed to repeatedly and frequently blowing her nose during a recent upper respiratory infection.

A 58-year-old man presents with myalgias of approximately 1 week’s duration. He had been recently treated for sinusitis and symptoms resolved. His only medications were hydrochlorothiazide for hypertension and simvastatin for hyperlipidemia. He and his wife had gone camping 1 month before this visit.

A woman in her 20’s presents for care after 9 days of sore throat and subjective fevers followed by neck stiffness that developed over the last 2 to 3 days. The pain is exacerbated by swallowing and any neck motion. She has had sore throats before, but never this bad or this long and never that made her neck stiff.

What are the most effective ways to reduce the incidence of acute exacerbations of chronic obstructive pulmonary disease?

A 47-year-old man in no apparent distress presented with intermittent facial pain, involuntary right facial muscle contractions, bilateral muscle spasms, trismus, involuntary tongue protrusions, tongue trauma, and an excessive gag reflex. He had taped a pacifier to his face to prevent tongue damage during involuntary clenching.

A 66-year-old woman is concerned about a gradually increasing rash located on the buttocks, lower back, abdomen, and upper, posterior thighs. The eruption has been present at least 18 months and is mildly pruritic.

A 33-year-old man seeks attention for his abnormal toenails, having already failed full treatment courses of both terbinafine and itraconazole.

Here: 10 tips that can help you provide optimal care of your patients with MS.

Distinguish Amebic Colitis from E coli infection faster

A tip for identifying pinworm infections in pediatric patients.