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Mucous cysts
MUCOUS WILLIAIK
CYSTS
C. HURT, D.D.S., WAYNESBORO, MISS.
UCOUS cysts, also termed mucous retention cysts or mucoceles, occur in the mucous membrane of the mouth or lips. They are not painful but frequently enlarge enough to become annoying and often cause some disfigurement, especially if located upon the lips. They occur most commonly in children.’ These cysts are formed usually from the obstruction of a glandular duct or it,s orifice. Labial and buccal glands are most frequently involved, but the cyst,s have also been found upon the tongue and even the floor of the mouth. As the gland secretes, the obstructed duct enlarges and is gradually ballooned out causing the overlying mucous membrane to bulge. As the dilatation continues, the distended surface of the mucous membrane becomes extremely thin. When the swelling is greatest, the cystic area has a darker appearance than the surrounding tissue, and the color, as described by Thoma,2 is greenish or greenish-bluish. The contents of the mass is a glairy, crystal clear, mucous fluid, normally, and this readily exudes if the membrane is punctured. Any break in the cyst wall may cause the contents to become infected. The size varies anywhere from 0.5 cm. to 1.5 cm. in diameter. The treatment, is surgical removal. Case Report
M
The patient, referred by her physician, was a 15-year-old well-developed white girl. Her general physical condition was good. She presented a cystic, movable mass on the right inner aspect of her lower lip, well within the lahial vestibule (Fig. 1). The mass was slightly discolored but was not painful to manipulation. The gross enlargement measured 1.4 cm. by 1.6 cm. The ])atient stated that she had first noticed the mass two months previously and A clinical diagnosis of mucous it had enlarged enough to become annoying. cyst was made. The patient was premeditated with 1 gr. Seconal Sodium and the cyst enucleated under 11/e per cent YiXonocaine Hydrochloride anesthesia. The incision was sutured with no drain. The recovery was uneventful. Upon incision of the cyst a clear, viscous, mucoid fluid exuded. The specimen was sent to the pathology laboratory and the report received follows. Microscopic Examination.-Sections of the specimen showed a part of a fibrous cyst wall with a lining composed of epithelium resembling that derived from a salivary duct. The thickened portions of the cyst wall were 425
426
WILLIAM
C. HURT
caused by nodular collections of mucous salivary gland acini and their ducts. This salivary gland tissue was essentially normal in appeara,nce. There was no evidence of specific type inflammatory or malignant change. Diagnosis:
Mucocele of lip.
Fig.
l.-Mucous
cyst
within
the vestibule
of the mouth.
Summary A brief discussion of mucous cysts has been presented followed report with pathologic description of the specimen removed.
by a case
References 1. Christopher, Frederick: p. 256. Oral 2. Thoma, Kurt H.: 1010.
Minor Surgery,
Surgery,
Philadelphia,
St. Louis,
1941, IV. B. Saunders
1948, The C. V. Nosby
Company,
Company, vol. 2, p.
CYSTS
C. HURT, D.D.S., WAYNESBORO, MISS.
UCOUS cysts, also termed mucous retention cysts or mucoceles, occur in the mucous membrane of the mouth or lips. They are not painful but frequently enlarge enough to become annoying and often cause some disfigurement, especially if located upon the lips. They occur most commonly in children.’ These cysts are formed usually from the obstruction of a glandular duct or it,s orifice. Labial and buccal glands are most frequently involved, but the cyst,s have also been found upon the tongue and even the floor of the mouth. As the gland secretes, the obstructed duct enlarges and is gradually ballooned out causing the overlying mucous membrane to bulge. As the dilatation continues, the distended surface of the mucous membrane becomes extremely thin. When the swelling is greatest, the cystic area has a darker appearance than the surrounding tissue, and the color, as described by Thoma,2 is greenish or greenish-bluish. The contents of the mass is a glairy, crystal clear, mucous fluid, normally, and this readily exudes if the membrane is punctured. Any break in the cyst wall may cause the contents to become infected. The size varies anywhere from 0.5 cm. to 1.5 cm. in diameter. The treatment, is surgical removal. Case Report
M
The patient, referred by her physician, was a 15-year-old well-developed white girl. Her general physical condition was good. She presented a cystic, movable mass on the right inner aspect of her lower lip, well within the lahial vestibule (Fig. 1). The mass was slightly discolored but was not painful to manipulation. The gross enlargement measured 1.4 cm. by 1.6 cm. The ])atient stated that she had first noticed the mass two months previously and A clinical diagnosis of mucous it had enlarged enough to become annoying. cyst was made. The patient was premeditated with 1 gr. Seconal Sodium and the cyst enucleated under 11/e per cent YiXonocaine Hydrochloride anesthesia. The incision was sutured with no drain. The recovery was uneventful. Upon incision of the cyst a clear, viscous, mucoid fluid exuded. The specimen was sent to the pathology laboratory and the report received follows. Microscopic Examination.-Sections of the specimen showed a part of a fibrous cyst wall with a lining composed of epithelium resembling that derived from a salivary duct. The thickened portions of the cyst wall were 425
426
WILLIAM
C. HURT
caused by nodular collections of mucous salivary gland acini and their ducts. This salivary gland tissue was essentially normal in appeara,nce. There was no evidence of specific type inflammatory or malignant change. Diagnosis:
Mucocele of lip.
Fig.
l.-Mucous
cyst
within
the vestibule
of the mouth.
Summary A brief discussion of mucous cysts has been presented followed report with pathologic description of the specimen removed.
by a case
References 1. Christopher, Frederick: p. 256. Oral 2. Thoma, Kurt H.: 1010.
Minor Surgery,
Surgery,
Philadelphia,
St. Louis,
1941, IV. B. Saunders
1948, The C. V. Nosby
Company,
Company, vol. 2, p.