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| Year : 1983 | Volume
: 29
| Issue : 2 | Page : 105-6 |
Hydatid cyst of the parotid gland (a case report).
Saxena SK, Chaudhary SK, Saxena GR, Rao SS
How to cite this article:
Saxena S K, Chaudhary S K, Saxena G R, Rao S S. Hydatid cyst of the parotid gland (a case report). J Postgrad Med 1983;29:105 |
Hydatid disease most commonly involves the liver and lungs; the abdominal cavity organs stand next in frequency.[6] The parotid gland is a rare site of this disease.[1], [2], [4] In Bickers' series[3] of 532 cases from Lebanon, the parotid gland was involved in only one case. Emamy and Asadian[5] reported one case of parotid gland hydatid in a series of 4 cases of hydatid disease of unusual sites.
T.D., a 45 year old, Hindu female was admitted to the surgical unit of this institution for the complaint of a gradually increasing swelling in the right parotid region for 2 years' duration. The swelling was painful to start with but later became painless. Physical examination revealed a cystic swelling, 5 cm x 5 cm-in size, in the parotid region. It was non-tender and mobile. Facial nerve was not involved. A provisional clinical diagnosis of a cyst or a neoplasm of the parotid gland was made. There was no other palpable lump or swelling anywhere in the body. At operation, a cystic mass was found replacing most of the parotid gland; the parotid capsule was blended with the fibrous wall of the cystic mass. The cystic mass and the remains of the parotid gland and its capsule were excised. The excised cystic mass on sectioning revealed the daughter cysts (Echinococcus granulosus). The histological examination showing laminated acellular layer in the cyst wall also confirmed the diagnosis.
The parotid gland hydatid cysts are always primary. A hexacanth embryo, having a size of about 30 to 35 µm may unusually cross the liver and lung capillary beds; and once in arterial circulation, it may lodge itself in any site of the body, mostly the kidney, brain, bone, spleen and the heart, and rarely the parotid gland. This should be kept in mind while interpreting a cystic or soft tumour-like mass affecting the gland, because the accidental rupture of the cyst during surgical intervention may be life threatening to the patient and the locally spilled hydatid material may result in secondary cyst formation.
| 1. | Amir-Jahed, A. K., Fardin, R. and Bakshandeh, K.: Clinical echinococcosis. Ann. Surg., 182: 541-546, 1975.  |
| 2. | Azizi, D.: Remarks on the compiled cases of hydatid cyst operated on in Tehran. Sci. J. Iranian Med. Council, 2: 127. Cited by Emamy and Asadian.[5] |
| 3. | Bickers, W. M.: Hydatid disease of female pelvis. Amer. J. Obstet. Gynecol., 107: 477-483, 1970. |
| 4. | Bonakdarpour, A.: Echinococcal disuse. Report of 112 cases from Iran and review of 611 cases from Unites States. Amer. J. Roentgenol., 99: 660-666, 1967. |
| 5. | Emamy, H. and Asadian, A.: Unusual presentation of hydatid disease. Amer. J. Surg., 132: 403-405, 1976. |
| 6. | Saidi, F.: "Surgery of Hydatid Disease", 1st Ed., W. B. Saunders Co. Ltd., London, Philadelphia and Toronto, 1976, p. 282. |
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