The Hairy Kidney Sign

Erdheim–Chester disease
A 62-year-old man presents with an incidental retroperitoneal mass on imaging. Discover the rare diagnosis behind the classic 'hairy kidney' sign.
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A Puzzling Pediatric Abdomen

Colocolonic intussusception
A 5-year-old boy presents with intermittent abdominal pain. See the classic CT findings that reveal a rare cause of intestinal obstruction in children.
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Not Just Genital Warts

Condylomata lata
A 17-year-old presents with a 1-month history of pruritic, smooth, grayish-white papules on the vulva. Learn the key differential for genital lesions.
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Teen Hip Pain: More Than a Sprain

Slipped capital femoral epiphysis
A 12-year-old with obesity develops a limp and right hip pain. Discover the most likely diagnosis for this common adolescent hip disorder.
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A Puzzling Chin Lesion

Odontogenic cutaneous fistula
A 42-year-old woman presents with a painful chin swelling. With no recent trauma or fever, what could be the surprising underlying cause of this facial lesion?
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Puzzling Ulcers in a Young Boy

Pyoderma gangrenosum
A 5-year-old boy develops painful skin ulcers unresponsive to antibiotics. Explore a case of a rare inflammatory skin condition without revealing the diagnosis.
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Headache on the Farm: A Neurological Puzzle

Cystic echinococcosis
A 14-year-old boy from a farm presents with chronic headaches and vomiting. MRI reveals a complex brain cyst. Explore the diagnostic journey and management.
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Abdominal Skin Lesions Post-TACE

Drug-Eluting Bead Embolism
An 81-year-old woman with HCC develops painful abdominal skin lesions after TACE. What is the most likely cause of this rare complication?
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The Price of an Unproven Cure

Chelation Therapy
A 25-year-old man develops severe anemia, fatigue, and cough after using a folk remedy. Explore this case of an unexpected and dangerous poisoning.
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When Vision & Features Change

Somatotropic pituitary adenoma
A 34-year-old man with DKA presents with blurry vision and changing features. Explore the diagnostic journey behind these unusual endocrine symptoms.
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