Indian Journal of Radiology and Imaging Indian Journal of Radiology and Imaging

QUIZ
Year
: 2005  |  Volume : 15  |  Issue : 1  |  Page : 135--136

Radiological quiz - chest


S Khanduri 
 Era's Lucknow Medical College & Hospital, Sarfarazganj, Moosa Bagh Picnic Spot, Hardoi Road, Lucknow - 226003, India

Correspondence Address:
S Khanduri
Era«SQ»s Lucknow Medical College & Hospital, Sarfarazganj, Moosa Bagh Picnic Spot, Hardoi Road, Lucknow - 226003
India




How to cite this article:
Khanduri S. Radiological quiz - chest.Indian J Radiol Imaging 2005;15:135-136


How to cite this URL:
Khanduri S. Radiological quiz - chest. Indian J Radiol Imaging [serial online] 2005 [cited 2019 Jun 24 ];15:135-136
Available from: http://www.ijri.org/text.asp?2005/15/1/135/29188


Full Text

A 22 year old female presented to us with cough and fever. Frontal chest X-Ray revealed multiple round radiopacities in left apex. An ultrasound and contrast enhanced CT were also done.

What is your diagnosis ?

Ultrasound study reveals cystic space occupying lesions.

 Radiological Diagnosis



 View Answer

 PULMONARY HYDATID CYSTS



Ultrasound study reveals cystic space occupying lesions. These lesions show posterior acoustic enhancement and were multiple. On contrast enhanced CT, multiple round hypodense (near water density) space occupying lesions are seen in left apex. The lesions are smoothly outlined and show mild peripheral contrast enhancement. ELISA was positive and surgical exploration proved them to be hydatids.

Hydatid cysts are caused by the larval stage of either Echinococcus Granulosus or E. Alveolaris. Balikian et al in 1974 extensively studied the characteristic of hydatids in lung. They found cysts to be multiple in 30% and bilateral in 20% cases. Lower lobe involvement was seen in 60% and a predilection for right lobe and posterior segments was also seen. Calcifications in lung hydatid is rare. Perizel et al in 1984 emphasised that visualization of daughter cysts is characteristic. Hoff et al in 1987 noted that walls of cysts may demonstrate marked contrast enhancement on CT (H.U. of cyst fluid is 3-30 H.U.) .[6]

References

1Beggs I. The radiology of hydatid disease, AJR 1985,175: 639-648.
2Parizel et al : J C A T 1984; 8: 179-180
3Didier D, et al: Radiology 1985;154:179-186
4Choliz et al : AJR 1982;139:699-702
5Kammerer et al : E chinococcal disease. Infect Disease clin north Am. 7: 605 , 1993
6Schaeffer et al : Rev infect disease 13:243,199