A 44-yo♂️, HIV +, CD4 cell count of 86/mL, viral load of 35,900 copies/mL: a 1-month history of fevers and pruritic blackish-brown lamellated plaques on the limbs and scalp.
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DOI: 10.1056/NEJMicm2213894 #IDtwitter#dermatology
A RPR titer of 1:32.
A Treponema pallidum particle agglutination: ➕.
A skin-biopsy of the left forearm 🔬: diffuse dermal lymphocytes and histiocytes admixed with a plasma-cell infiltrate.
The patient declined:
- lumbar puncture to evaluate for neurosyphilis
-penicillin desensitization (history of anaphylaxis to penicillin)
After a 2-week of ceftriaxone, the skin lesions & fevers abated
At a 3-month: RPR titer 1:2 4/4
Routine staining methods (haematoxylin & eosin & Warthin-Starry) can identify spirochetes on the surface of enterocytes.
Histologically, characteristic findings include a decrease in microvilli &a predominantly eosinophilic inflammatory infiltrate.
3/10
Lactante, un mes de vida: fiebre, placa en la cara ligeramente sobreelevada, eritematosa, con coloración anaranjada periférica, delimitada, y con aumento de temperatura a la palpación 1/7
@ContinuumAEP@aepediatria ERISIPELA
✔️infección superficial que afecta a la dermis superior, el tejido celular subcutáneo y a veces al sistema linfático,
✔️causada en la mayoría de los casos por S. pyogenes o estreptococos de los grupos B, C o G. 2/7
@ContinuumAEP@aepediatria Origen: interrupción de la barrera cutánea por picaduras de insecto, erosiones, etc.
Comienzo: agudo
Placa eritematosa con bordes bien definidos y ligeramente elevados
Localización predilecta: miembros inferiores y cara
Frecuente: adenopatías regionales. 3/7
A 31-YO♂️, #sexually active with 2♂️partners in the previous month: 8 days before redness of the R eye, an itchy perianal rash & rectal pain; scattered, tender, shallow ulcers & pustules on chest (A), abdomen (B), back (C) & perianal (D) 1/9
An 85-YO in rural Mississippi: months of tender, erythematous plaques & edema on bilateral hands extending to the elbows & on feet extending below the knees with significant pain
A repeat skin extensive granulomatous inflammation (A), with Ziehl-Neelsen stain clusters of acid-fast bacilli throughout the dermis (B).
Kinyoun stain >9 AFB/high-power field (C & D).
2/19
A 44-YO♂️, stayed in a rural cottage of France 2 weeks previously: cramping upper abdominal pain with watery diarrhea.
He had passed what he thought were worms in his feces
Eosinophilia 1/6
The specimens: identified as the larvae of the drone fly, Eristalis tenax
These larvae are 2.5–3 cm in length; the posterior tube gives them the name of “rat-tailed maggots”
INTESTINAL MYASIS CAUSED BY ERISTALIS TENAX LARVA 2/6
Myiasis caused by E. tenax:
✔️rare but have been
✔️reported from various countries including Europe
✔️most often intestinal myiasis, but cases of infestation of the nasal cavity, urinary tract, and vagina have been described. 3/6
3 años ♀️, padre con lesiones cutáneas similares: lesiones cutáneas polimorfas localizadas en los glúteos, con elementos papulares, vesiculares y pustulosos umbilicados
1/13
@hgermanstrias@aepediatria Se realizó aislamiento de contacto y secreciones respiratorias (aérea y gotas) en el domicilio hasta la curación completa de las lesiones cutáneas (a los 10 días de evolución).
No hubo complicaciones ni nuevas lesiones en el seguimiento.
3/12