March 24th 2023
Statin-eligible patients in minority groups significantly undertreated; metabolically healthy obesity on the rise; menstruation irregularities suggest later CVD risk; and 2 more studies of note.
November 1st 2021
May 19th 2016
July 30th 2015
Dermatophytosis (Tinea) That Resembles Necrobiosis LipoidicaOctober 15th 2012
Always check the toenails for fungal infection after diagnosing tinea pedis, corporis, or cruris. The toenails may act as the source of infection and a reservoir, which may lead to reinfection after the cutaneous dermatophytosis is cleared.
Figurate Erythema-A Reactional (Hypersensitivity) StateSeptember 19th 2012
The differential diagnosis includes figurate erythema, granuloma annulare, sarcoidosis, and Hansen’s disease. Additional history disclosed that the plaques expanded, migrated and disappeared over a matter of days, eliminating all but the correct diagnosis: figurate erythema, a reactional (hypersensitivity) state.
Pyoderma Gangrenosum on the Leg of a Woman With Seropositive Rheumatoid ArthritisSeptember 11th 2012
The location (pretibial surface) of this ulcer, its visibly rolled undermined border, and severe pain are all typical of pyoderma gangrenosum, which is typically associated with inflammatory bowel disease, rheumatoid arthritis, and hematologic malignancies.
Bullous Pemphigoid: An Autoimmune Blistering DisorderAugust 31st 2012
In older persons, tense blisters such as these are most likely bullous pemphigus, an autoimmune blistering disease. Biopsy as well as direct and indirect immunofluorescent tests may be needed to exclude other blistering diseases, such as pemphigus and epidermolysis bullosa.
Allergic Reaction to Strap on Personal Heart Rate Monitor in a Marathon RunnerAugust 17th 2012
This man wore a personal heart rate monitor/transmitter while running, and had become allergic to the thiuram chemicals used to make the synthetic elastic band. A topical corticosteroid resolved the problem.
This was presumed to be an ectoparasite bite when the patient reported that she had a new pet kitten. A myriad of diagnostic possibilities exist, including the start of a drug eruption or viral infection, early allergic contact dermatitis, or first manifestation of an autoimmune bullous disease.