A Scar on the Retina

Toxoplasmosis
Explore the differential diagnosis for pigmented, sharply demarcated choroidal lesions. What could this common finding on a fundoscopic exam indicate?
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Cobblestones in the Eye?

Vernal keratoconjunctivitis
A patient presents with severe itchy eyes and large, cobblestone papillae on the upper palpebral conjunctiva. Learn about this form of conjunctivitis.
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A Nodule in Barrett’s Esophagus

Adenocarcinoma
A patient with Barrett's esophagus undergoes endoscopy, revealing a nodular abnormality. What is the most likely diagnosis for this concerning finding?
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Lower Back Hair Patch: What’s Hiding?

Spinal dysraphism
A tuft of hair on the lower back can be more than a birthmark. Explore this important cutaneous marker and its association with spinal abnormalities.
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Sudden Vision Loss Post-Exercise

Dislocation of the lens
A patient presents with sudden, painful vision impairment after vigorous exercise. Explore the differential diagnosis and management of this ocular emergency.
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A Newborn’s Wide-Eyed Gaze

Neonatal thyrotoxicosis
A preterm, low-birth-weight infant presents with retracted eyelids and low body fat. Explore the differential diagnosis for these concerning signs.
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When a Mole Gets a Halo

Halo nevus
Explore a benign nevus that develops a surrounding border of depigmentation. Learn about its features, association with vitiligo, and clinical significance.
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A Toddler’s Ascending Rash

Herpes zoster
Explore the case of a 19-month-old girl with an unusual ascending erythematous eruption. What is the diagnosis for this vesicular rash?
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A Curious Case of Short Digits

Albright's hereditary osteodystrophy
Explore a case of shortened fourth metatarsals and osteodystrophy with normal calcium and phosphorus levels. What is the underlying genetic disorder?
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Post-Delivery Rash: A Maternal Link?

Systemic lupus erythematosus
A newborn with Trisomy 21 develops a rash hours after birth. Explore the maternal diagnosis that explains this presentation of neonatal lupus.
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