The Hot Quadrate Sign on a Ventilation-Perfusion (V/Q) Scan

The Hot Quadrate Sign on a Ventilation-Perfusion (V/Q) Scan

The hot quadrate sign is defined as an intense arterial enhancement in the hepatic quadrate lobe, most frequently encountered on CT angiograms in patients with central venous occlusion. It has also been described as focal uptake on technetium-99m (Tc99m) sulfur colloid scans. We present an unusual c...

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Veröffentlicht in:Curēus (Palo Alto, CA) CA), 2024-07, Vol.16 (7), p.e64122
Hauptverfasser: Masih, Kabeer, Suthar, Pokhraj P, Virmani, Sumeet
Format: Artikel
Sprache:eng
Schlagworte:
Abdomen
Abscesses
Aneurysms
Case reports
Hemangioma
Kidney diseases
Liver cancer
Lymphoma
Nuclear Medicine
Scintigraphy
Tomography
Tumors
Vein & artery diseases
Ventilation
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Zusammenfassung:The hot quadrate sign is defined as an intense arterial enhancement in the hepatic quadrate lobe, most frequently encountered on CT angiograms in patients with central venous occlusion. It has also been described as focal uptake on technetium-99m (Tc99m) sulfur colloid scans. We present an unusual case of focal uptake in the hepatic quadrate lobe on a ventilation-perfusion (V/Q) scan, corresponding to the hot quadrate sign in a 42-year-old patient with chronic kidney disease and central venous occlusion.
ISSN:2168-8184
2168-8184
DOI:10.7759/cureus.64122