Antonio Guerrero Profile picture
Nov 2, 2022 6 tweets 4 min read Read on X
A 19-YO woman: a 6-month history of a slowly growing, nonscaling, nonpalpable brown patch on the left palm (A).
1/6

DOI: 10.1056/NEJMicm2204411
#dermatology #mycology #MedEd Image
🔍: curvilinear brown strands — also known as pigmented spicules — that formed a reticular pattern distinct from the palmar furrows (B).

🔬palmar skin scrapings, H&E: pigmented yeast and hyphae (C).

TINEA NIGRA
2/6

#IDtwitter #MedStudentTwitter ImageImage
Tinea nigra is an uncommon superficial mycosis, often grouped with the dermatophytes, but caused by the melanin-producing dimorphic yeast Hortaea werneckii.
3/6

#microbiology #dermatología
Tinea nigra:
📌a rare condition
📌found in warm and humid climates,
📌reported mainly in Central and South America,
although cases have been identified in the southern United States, Africa, and Southeast Asia.
4/6

#MedTwitter #Doctor
It most commonly manifests as a hyperpigmented patch on the palm of the hand and may be mistaken for a melanocytic lesion, such as melanoma.
5/6

#MedStudentTwitter #resident
After treatment with topical butenafine, the patient’s symptoms had abated at 3 months of follow-up.
6/6

DOI: 10.1056/NEJMicm2204411
#medicine #MedicalStudents

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Jul 8, 2023
A 32-YO HIV+ patient, from a rural area of Colombia, severely immunosuppressed (<50 CD4 cells/mm3): ulcers in lower limbs, was found with a larvae coming out from one ulcer (Figure).
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W Villamil et al. Rev Panam Enf Inf 2018; 1(1):40-41.
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The larva was identified, as possible Tenebrio molitor.

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La biopsia de una de las lesiones confirmó el diagnóstico de MOLUSCO CONTAGIOSO DEL PÁRPADO

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El molusco contagioso:
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6 años♂️: dolor y alopecia en placas en cuero cabelludo de 3 meses de evolución; en las últimas 48 horas, fiebre y cefalea, adenopatías cervicales < 2 cm.
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@lauracatty95 @juliaserralabos @SeanPYeh @ContinuumAEP @aepediatria QUERION DE CELSO:
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#infecciosas #microbiología #micología
@lauracatty95 @juliaserralabos @SeanPYeh @ContinuumAEP @aepediatria ✔️Una o varias placas dolorosas con folículos y pústulas rodeadas de áreas de alopecia eritematosas; pueden evolucionar a abscesos.
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#AtencionPrimaria
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Jun 5, 2023
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.
¼
👇
DOI: 10.1056/NEJMicm2213894
#IDtwitter #dermatology Ming J. Liu, M.D., and Wei ...
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.

MALIGNANT SYPHILIS
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#microbiology #dermpath #RareInfection
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Human #intestinal #spirochetosis:
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🖊️A De Gea, @alfredomaldo ,@clarapath, @MarianaDazAlmi1, @alirri, Raquel Escudero, et al.
👇
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@alfredomaldo @clarapath @MarianaDazAlmi1 @alirri Gastrointestinal symptoms such as abdominal pain, proctitis, or chronic diarrhea are the most common manifestations.

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2/10

#IntestinalSpirochetosis
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3/10

#Pathologists #pathology Colonoscopic biopsy compare...
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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
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#urgencias #microbiología
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Read 7 tweets

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