Mysterious White Lines on the Nails

Chemotherapy treatment
Discover the clinical significance of smooth white bands on the nails. Learn about a key nail finding linked to metabolic stress and systemic conditions.
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A Puzzling Case of Oral Papules

Herpetic glossitis
A clinical case challenge: A patient presents with multiple well-defined white papules on the tongue, each with a central punctum. What is the diagnosis?
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Papules on the Penis?

Pearly penile papules
Discover the diagnosis for multiple, tiny, smooth, skin-colored papules found along the coronal sulcus of the glans penis. A common, benign finding.
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A Netlike Rash on the Foot

Thrombotic vasculopathy
A patient presents with a purpuric, netlike skin eruption on their foot. Explore the differential diagnosis of retiform purpura and its serious implications.
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Decoding a Discolored Tongue

Candida albicans infection
Explore the differential diagnosis for black hairy tongue (lingua villosa nigra), a striking oral finding linked to certain medications and organisms.
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The Curious Case of Curly Lashes

Erlotinib
Discover a rare side effect of a specific cancer therapy that leads to unusual hair changes like trichomegaly. What medication is responsible for this?
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An Unwelcome Subcutaneous Guest

Furuncular myiasis
A patient develops a painful, inflamed nodule. The diagnosis is revealed when a botfly larva emerges. Learn the key features and treatment of this skin infestation.
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Solving a Nasal Enlargement Mystery

Rhinophyma
A clinical case challenge exploring the diagnosis of a patient presenting with progressive nasal enlargement, prominent pores, and a distorted appearance.
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Shining a Light on Skin Patches

Vitiligo
A patient presents with skin patches. See how a Wood's light examination helps clinch the diagnosis of a common autoimmune depigmenting disorder.
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Puzzling Pustules on the Soles

Keratoderma blennorrhagicum
A case of vesiculopustular, waxy skin lesions on the feet. Learn why this dermatological sign can point to an underlying sexually transmitted or GI infection.
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