Pom’s sign

Pom’s sign is seen in infection with? 

A. Brucella 
B. Tuberculosis 
C. Pseudomonas 
D. Coxiella

Ans. A.

Brucellosis is a bacterial zoonosis transmitted directly or indirectly to humans from infected animals, predominantly domesticated ruminants and swine. The disease is known colloquially as undulant fever because of its remittent character. Brucellosis almost invariably causes fever, which may be associated with profuse sweats, especially at night. In endemic areas, brucellosis may be difficult to distinguish from the many other causes of fever.

Radiology of the Spine: Differentiation of Brucellosis from Tuberculosis

	Brucellosis	Tuberculosis
Site	Lumbar and others	Dorsolumbar
Vertebrae	Multiple or contiguous	Contiguous
Diskitis	Late	Early
Body	Intact until late	Morphology lost early
Canal compression	Rare	Common
Epiphysitis	Anterosuperior Pom's sign.	General: upper and lower disk regions, central, subperiosteal
Osteophyte	Anterolateral parrot beak.	Unusual
Deformity	Wedging uncommon	Anterior wedge, gibbus
Recovery	Sclerosis, whole body	Variable
Paravertebral abscess	Small, well-localized	Common and discrete loss, transverse process
Psoas abscess	Rare	More likely