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IMAGES IN MEDICINE
Year : 2004  |  Volume : 50  |  Issue : 3  |  Page : 215-216

Axillary Cystic Hygroma


Department(s) and institution(s), Neonatal Intensive Care Unit, Royal Hospital, Muscat, United Arab Emirates

Date of Submission05-Mar-2004
Date of Decision11-Mar-2004
Date of Acceptance26-Apr-2004

Correspondence Address:
Prakash Manikoth
Department(s) and institution(s), Neonatal Intensive Care Unit, Royal Hospital
United Arab Emirates
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PMID: 15377810

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How to cite this article:
Manikoth P, Mangalore G P, Megha V. Axillary Cystic Hygroma. J Postgrad Med 2004;50:215-6

How to cite this URL:
Manikoth P, Mangalore G P, Megha V. Axillary Cystic Hygroma. J Postgrad Med [serial online] 2004 [cited 2014 Aug 28];50:215-6. Available from: http://www.jpgmonline.com/text.asp?2004/50/3/215/12579


A-30-year-old woman was referred at 35 weeks of pregnancy after sonological detection of a cystic mass in the foetal chest. A foetal ultrasonography carried out at our institution, showed a large multi-loculated mass in the right axilla that measured 9 X 7 cm and extended to the right chest wall [Figure - 1]. The mass did not light up on colour Doppler examination and hence a diagnosis of cystic hygroma was made. The right arm was extended over the mass and no other foetal anomalies were found. The foetal biparietal diameter, femur length and abdominal circumference corresponded with the gestational age of 35 weeks. In view of the potential for shoulder dystocia and obstructed labour, the baby was delivered by an elective Caesarean section at 37 weeks of gestation. The female infant weighing 2710 g did not require any assistance at birth. Clinically, she was noted to have a soft cystic, brilliantly transilluminant axillary mass measuring 14 X 10 cm and extending to the right anterior chest wall [Figure - 2]. No other anomalies were noted. The chest radiograph did not show any abnormality. Since the baby was asymptomatic, it was decided that sclerosant therapy be administered at 3 months of age.


 :: Discussion Top


Cystic hygroma is a benign congenital malformation of the lymphatic system that has its genesis in the lack of development of communication between the lymphatic and venous systems. The cyst may be unilocular or multilocular and could be of variable size but is characteristically brilliantly transilluminant. Eighty per cent of cystic hygromas occur in the neck, usually in the posterior cervical triangle. Other sites include the axilla, superior mediastinum, mesentery, retro-peritoneal region, pelvis and lower limbs.[1] Cystic hygromas may be associated with Turner syndrome, Noonan syndrome, trisomies, cardiac anomalies and foetal hydrops. Complications include infection, bleeding and airway compromise.

Foetal axillary cystic hygromas have been reported rarely[2] and usually as a sonographic finding in mid-gestation.[3] On an ultrasonological scan it appears as a hypo-echogenic multilocular cystic mass with septa of variable thickness. Scanning along the longitudinal axis of the humerus helps to identify the cystic mass easily. Unlike haemangioma, a cystic hygroma fails to light up on colour Doppler examination. Other differential diagnoses include high thoracic meningomyelocoele, and limb-body wall complex which is a complex mass of eviscerated organs. Magnetic resonance imaging permits better tissue characterisation and provides a better estimate of tumour extent. Considering its association with several chromosomal anomalies, determination of foetal karyotype may be undertaken for providing accurate diagnosis and genetic counselling.[4] Sonological evaluation should also be undertaken for the detection of foetal skin oedema, ascites, pleural and pericardial effusions and cardiac or renal anomalies. Repeat sonological evaluations may be necessary for the evaluation of the tumour growth. As cystic hygromas are known to lead to obstructed labour, and neonatal asphyxia, an elective Caesarean section should be considered as the preferred mode of delivery. These babies should be delivered at centres equipped to offer emergency neonatal ventilatory care.

As these tumours do not resolve spontaneously, surgical excision of the tumour and affected tissues should be undertaken. Infiltration of vital structures makes surgical excision difficult. Recurrences are known to occur even after presumed total surgical excision. Sclerosing agents like Bleomycin and OK-432 (inactivated streptococcal organisms) can be injected directly into the mass for achieving the objective of excision without subjecting the infant to surgery.

Antenatal diagnosis of foetal cystic hygroma helps in planning a better anticipatory care (elective Caesarean section, conducting delivery in a well-equipped centre and undertaking investigations for the diagnosis of other associated congenital anomalies and chromosomal abnormalities). Interestingly, a recent report describes the intra-uterine management of foetal cystic hygroma using injection of OK-432.[5]

 
 :: References Top

1.Panditt SK, Rattan KN, Budhiraja S, Solanki RS. Cystic lymphangioma with special reference to rare sites. Indian J Pediatr 2000;67:339-41.  Back to cited text no. 1    
2.Zanotti SD, LaRusso S, Coulson C. Prenatal sonographic diagnosis of axillary cystic lymphangiomas. J Clin Ultrasound 2001;29:112-5.  Back to cited text no. 2  [PUBMED]  
3.Reichler A, Bronshtein M. Early prenatal diagnosis of axillary cystic hygroma. J Ultrasound Med 1995;14:581-4.  Back to cited text no. 3  [PUBMED]  
4.Reuss A, Pijpers L, Schampers PT, Wladimiroff JW, Sachs ES. The importance of chorionic villus sampling after first trimester diagnosis of cystic hygroma. Prenat Diagn 1987;7:299-301.  Back to cited text no. 4  [PUBMED]  
5.Sasaki Y, Chiba Y. Successful intrauterine treatment of cystic hygroma colli using OK-432. A case report. Fetal Diagn Ther 2003;8:391-6.  Back to cited text no. 5    


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[Figure - 1], [Figure - 2]

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Online since 12th February '04
2004 - Journal of Postgraduate Medicine
Official Publication of the Staff Society of the Seth GS Medical College and KEM Hospital, Mumbai, India
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