Category Archives: Image Challenge

Image Challenge of the Week!

A patient with AIDS presents with acute dyspnea. An ultrasound probe is placed on his lateral chest wall producing the following image:

https://lifeinthefastlane.com/ultrasound

What is the name of the above finding and the associated diagnosis? What is likely the underlying cause of the above diagnosis?

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Image Challenge of the Week!

A 22-year old man presented with progressive headache, painless unilateral vision loss, fever, and axillary lymphadenopathy. CT head and lumbar puncture were negative. RPR and Lyme titers were negative. Fundoscopic examination revealed the following:

stellate neuroretinitis
Curr Opin Ophthalmol. 1999 Jun;10(3):209-16.

What is this finding and the likely etiology in the context of the patient’s symptoms?

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Image Challenge of the Week!

A 50-year old male presents with a chronic pruritic rash of his groin that failed to respond to topical antifungals and glucocorticoids. KOH stain was negative for fungal elements. Examination under Wood’s lamp revealed the following:

erythrasma
Sultan Qaboos Univ Med J. 2016 Aug;16(3):e381-2.

What is the diagnosis?

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Image Challenge of the Week!

A patient has undergone upper endoscopy for evaluation of dysphagia. You are present in the endoscopy suite and see the following on passage through the esophagus.

fixed tracheal rings.PNG
Curr Opin Gastroenterol. 2012 Jul; 28(4): 382–388.

What is this finding and the associated condition?

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Image Challenge of the Week!

Shown below is diffusion weighted imaging (DWI) and a corresponding apparent diffusion coefficient map (ADC) from an MRI brain in a patient with high suspicion of  having had an ischemic stroke.

L MCA acute stroke DWI
DWI : Case courtesy of Dr Gagandeep Choudhary, <a href=”https://radiopaedia.org/”>Radiopaedia.org</a&gt;. From the case <a href=”https://radiopaedia.org/cases/12093″>rID: 12093</a>
L MCA acute stroke ADC
ADC mapping: Case courtesy of Dr Gagandeep Choudhary, <a href=”https://radiopaedia.org/”>Radiopaedia.org</a&gt;. From the case <a href=”https://radiopaedia.org/cases/12093″>rID: 12093</a>

Based on these findings, what is the age of the ischemic stroke?

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Image Challenge of the Week!

Here we have a normal flow-volume curve of a properly performed spirometry test:

Normal flow-volume loop
McCarthy, K., & Dweik, R. A., M.D. (2017, August 04). Pulmonary Function Testing . Retrieved September 04, 2017, from http://emedicine.medscape.com/article/303239-overview

Identify the large upper airway obstruction abnormalities shown in the following the flow-volume loops:

variable extrathoracic upper airway obstruction
A
variable intrathoracic upper airway obstruction
B
fixed upper airway obstruction
C

Continue reading Image Challenge of the Week!

Image Challenge of the Week!

A 63-year old white woman with end-stage renal disease secondary to long-standing hypertension on unscheduled dialysis, atrial fibrillation on warfarin, and hyperlipidemia presents with a painful, ulcerated lesion with purpuric borders, surrounding retiform purpura, and central eschar. Biopsy demonstrated calcifications of small and mediam sized arteries with necrosis of the subcutaneous fat.

calciphylaxis JAMA derm
JAMA Dermatol. 2017;153(3):309-314

What is the likely diagnosis?

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