Authors


Kenneth Lecroy, MD

Latest:

Leukoplakia

A 39-year-old man was concerned that his history of long-termnicotine exposure placed him at increased risk forthroat cancer. He had used about 2 cans of “dip” each weekfor many years. The patient habitually placed the tobaccoin the right lower lip area; to avoid spitting, he always swallowedthe spent wad. The patient did not smoke; he usedalcohol occasionally.


Kenneth S. Sternberg, DO

Latest:

Takotsubo Syndrome in an African American Woman With Typical Presentation

Also known as “broken-heart syndrome,” Takotsubo syndrome is a stress-induced cardiomyopathy.


Kenneth Saag, MD

Latest:

What’s New in the Treatment of Osteoporosis?

That’s the question we put to Dr. Kenneth Saag. In the next few minutes, Dr. Saag, will summarize the latest developments in osteoporosis therapy.


Kenneth W. Rundell, PhD

Latest:

Complications of Body Art

Primary care providers are seeingan increasing number ofpatients who have snakes orbarbwire coiling around theirarms or gold rings danglingfrom their eyebrows and navels. Tattooingand body piercing are particularlypopular among adolescents andyoung adults-many of whom may notbe aware of the possible medical complicationsof these ancient practices.


Keshwar N. Ramkissoon, MD

Latest:

Takotsubo Cardiomyopathy in a Man With a Gunshot Wound

A 48-year-old African American man with no significant medical history sustained a gunshot wound to the face and shoulder.


Keshwar Ramkissoon, MD

Latest:

Incomplete LV Rupture Secondary to MI: A Case of Intramyocardial Dissection

Myocardial rupture is the most feared and often lethal complication of acute MI. It was a potential diagnosis for this patient who presented with sinus tachycardia, ST-segment elevation from V1 to V4, II, III, and aVF with associated Q waves. Follow the workup and outcome here.


Kevin C. Oeffinger, MD

Latest:

Follow-up of Childhood Cancer Survivors: The Role of the Primary Care Physician

A 16-year-old boy with a history of leukemia at age 12 years complains of right hip pain of several months' duration. A 34-year-old woman who had Hodgkin lymphoma at age 14 years comes in for a routine physical.


Kevin D. Deane, MD, PhD

Latest:

Post-Test on Rheumatoid Arthritis in Primary Care

Use this short test to gauge how much you’ve learned about a condition that needs more primary care involvement.


Kevin Doherty, PharmD

Latest:

The 10 Most Common Prescribing Errors: Tips on Avoiding the Pitfalls

Numerous factors contribute to the medication errors that kill up to 98,000 patients each year. Unnecessarily high dosages can result in increased side effects with only a small therapeutic benefit, especially in elderly patients. Lack of patient information-such as a history of allergies or adverse drug reactions-is another cause of error and injury. Communication failures include the use of ambiguous abbreviations, misinterpretation of verbal orders, and lack of timely response to a patient's medication-related symptoms. Dosing errors are common in children because of variability in dosage expressions in drug references. Remedies for prescribing errors are described in detail here.


Kevin H. Mckinney, MD

Latest:

Thyrotoxicosis presenting as pulmonary hypertension

The authors describe a woman who presented with severe pulmonary hypertension. A cardiopulmonary cause was initially sought, but thyrotoxicosis was the underlying cause.


Kevin Klingele, MD

Latest:

The Dangers of ATVs

An all-terrain vehicle-ATV-is described by the American National Standards Institute as one that "travels on low pressure tires, with a seat that is straddled by the operator, and with handlebars to be used for steering."1 By this definition, an ATV is designed for interactive riding by a single operator. Drivers are able to shift their weight freely in all directions depending on the situation and terrain. According to ATV safety standards and recommendations, children younger than 6 years are never to be on an ATV of any size-alone or with someone else.


Kevin M. Chan, MD

Latest:

Pulmonary hypertension in the elderly, part 2: Treatment

ABSTRACT: The treatment of pulmonary arterial hypertension(PAH) is directed at the underlying cause, such as diastolicheart failure or chronic thromboembolic disease. Patients withidiopathic PAH or PAH associated with connective-tissue diseasewho have World Health Organization (WHO) functionalclass II or III PAH should receive a trial of oral bosentan, ambrisentan,and/or sildenafil; inhaled iloprost is an alternative oran additive agent. If patients fail to respond to these interventionsor if they have WHO functional class IV PAH, considersubcutaneous or intravenous treprostinil or epoprostenol. Theuse of these latter agents is much more complicated and maybe difficult to initiate in elderly patients. (J Respir Dis. 2008;29(12):468-474)


Kevin O'brien, MD

Latest:

Mesenteric Venous Thrombosis

A 63-year-old man with a history of hypertension and gastroesophageal reflux disease presented with progressive, sharp mid-abdominal pain of 3 weeks' duration.


Khalid Aziz, MD

Latest:

Erythema ab Igne After Frequent Heating Pad Use

A 62-year-old woman presented with a rash and intermittent pain of the right upper quadrant. The reticular, brown hyperpigmentation was also seen on her right flank and around the umbilicus. The patient reported that she often applied heating pads to these areas for pain relief.


Khan Mg

Latest:

CARDIAC DRUG THERAPY (ed 6)

In this compact clinical guide, the author presents detailed prescribing advice forall types of cardiac patients. The first chapters are devoted to the principal classesof cardiac drugs: β-blockers, angiotensin-converting enzyme inhibitors, angiotensinII receptor blockers, calcium antagonists, and diuretics. These chapterscover such topics as indications, contraindications, adverse effects, interactions,dosages, differences between the available agents in a given class, and how tochoose the most appropriate agent from a class for a particular patient. Chapterson the management of the various cardiac disorders-hypertension, angina, acutemyocardial infarction, heart failure, arrhythmias, cardiac arrest, infective endocarditis,and hyperlipidemia-comprise the core of the book. There are also chapterson antiplatelet agents, anticoagulants, and thrombin inhibitors; and the use ofcardiac drugs during pregnancy and lactation. The sixth edition features a newchapter on recent clinical trials, new American Heart Association cardiac arresttreatment algorithms, current hypertension management guidelines, and expandeddrug administration and dosage tables. Numerous tables, charts, algorithms,and graphs accompany the text.


Khatuna Kadeishvili, MD

Latest:

Osteomyelitis in a 75-Year-Old Heroin User

Presenting complaints were fever, nausea, and lower abdominal pain that worsened with walking. Osteomyelitis is not commonly included in a differential for abdominal pain. This case is different.


Khiem T. Tran, MD

Latest:

Ophthalmic Zoster

Several days earlier, a 69-year-old man had a mild headache, fatigue, and tingling and prickly facial sensations. Shortly afterward, this painful, “weepy” rash developed on his forehead, upper cheek, and nasolabial folds and vision in the right eye became blurry. The patient’s history included type 2 diabetes mellitus, hypertension, and childhood varicella.


Kim A. Bullock, MD

Latest:

Bilateral Painless Swelling of the Neck in a 40-Year-Old Man

On palpation, the swelling was non-tender, soft, and mobile but did not feel fluid-filled. Here, view ultrasound findings and propose your diagnosis.


Kim D. Edhegard, MD

Latest:

Aquagenic Urticaria

Swelling of the wrists and ankles of 3 months' duration prompted a 33-year-old man to seek medical attention. The swelling was highly migratory, with periods of regression that lasted several days at a time. The patient also had a 3-year history of "breaking out" after contact with water. He had no personal or family history of asthma, allergies, or other atopic disorders. He was not taking any medications.


Kimberly Boswell, MD

Latest:

Asthma Disease Burden and Formulary Decision Making: MCO and Employer Perspectives

Asthma affects approximately 22 million adults and children in the United States and poses a significant economic burden on the health care system and on employers. According to the National Heart, Lung, and Blood Institute, direct and indirect costs for all forms of asthma totaled $19.7 billion in 2007. Prescription drugs represented the largest single direct cost at $6.2 billion.


Kimberly C. Capp, DO

Latest:

Fever and Rash: Infection or Kawasaki Syndrome?

Kawasaki syndrome (KS) is a common and serious disorderthat most often affects children aged 1 to 8 years but mimicsa range of other diseases of childhood. Diagnosis of KS isbased on physical examination findings coupled with theexclusion of other causes. To provide optimal care for patients,it is important to be aware of the differential diagnosis of KS.We report a case of a 4-year-old boy who presented withpersistent fever and cervical lymphadenitis; later, mucousmembrane changes, rash, and conjunctival injectioncharacteristic of KS developed. [Infect Med. 2008;25:320-322]


Kimberly Johnson, MD

Latest:

Acne Conglobata

For 3 months, a 24-year-old man-a military aviator-had a worsening rash on his chest. He had no lesions elsewhere. Culture of the ulcers grew Pseudomonas. A 2-week course of antibiotic therapy was ineffective.


Kimberly Kolkhorst, DO

Latest:

An Unusual Presentation of Septic Hip

Emphysematous cholecystitis is a rare condition that is the result of infection with Clostridium perfringens and other gas-producing organisms including Escherichia coli, Bacteroides fragilis, and Klebsiella species.


Kimberly Lam, MD

Latest:

Scrotal Calcinosis in Normocalcemic Primary Hyperparathyroidism

A 32-year-old man with no significant medical history presents with multiple scrotal lesions that he claims have been present for 2 years. They are non-tender and he reports no overt symptoms. The full case, here.


Kimberly Rieniets, DO

Latest:

Emerging Mold Infections: Hyalohyphomycosis

Filamentous fungi (molds) can be divided into 2 broad morphologically distinct groups: those that produce aseptate hyphae and those that produce aseptate (or rarely septated) hyphae. Identification of aseptate hyphae in tissue is virtually pathognomonic of zygomycosis (mucormycosis)-disease caused by fungi of the class Zygomycetes (order Mucorales). The discovery of septate hyphae in tissue is less diagnostic; septate hyphae may be caused by fungi that typically grow as yeasts (eg, Candida and Trichosporon) or a vast number of species of molds. The septate molds are often divided into those with darkly pigmented hyphae (phaeohyphomycetes) and those with pale or colorless (hyaline) hyphae (hyalohyphomycetes).


Kirk D. Dimitris, MD

Latest:

Snake Bite: A Small Puncture Can Create a Large Problem

An 8-year-old boy from southern Ohio was outside playing when he saw a snake lying in the driveway. The boy picked up the snake to show his father and then dropped it. He picked it up again and was bitten. He sustained a tiny puncture wound to the palmar aspect of his distal left ring finger and a scratch to the distal long finger.


Kirk H. Waibel, MD

Latest:

Atypical Tuberculin Skin Test Responses

Tuberculin-type hypersensitivity is characterized by marked spongiotic dermatitis with intraepidermal and subepidermal vesiculation and scattered eosinophils.



Klaus E. Monkemuller, MD

Latest:

Hemolytic Uremic Syndrome

For 24 hours, a 62-year-old woman had had severe weakness, abdominal pain, and watery diarrhea that had become bloody in the past 12 hours.She had no significant medical history.


Klaus E. Monkemuller, MD

Latest:

“Snakeskin” Gastric Mucosa

Cirrhosis and ascites developed in a 52-year-old man with a history of chronic hepatitis C and alcohol abuse. He was hospitalized because of bleeding esophageal varices, which were successfully treated with elastic band ligation.

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