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Article
March 1969

Radiological Case of the Month

Am J Dis Child. 1969;117(3):319-320. doi:10.1001/archpedi.1969.02100030321012
Abstract

CLINICAL HISTORY.—This 1-day-old girl was transferred to Childrens Hospital, Los Angeles, with a large mass in the buttock. The mass was noted at birth. The mother's pregnancy and delivery were uncomplicated.

Physical Examination.—The infant was alert, active, and in no distress. A 5 × 5 cm firm, purplish mass was palpable in the buttock. By rectal examination, the mass seemed to extend into the pelvis, posterior to the rectum. A firm mass was also palpable in the lower abdomen. The remainder of the examination was not remarkable. Radiographic studies were done (Fig 1-3).

Denouement and Discussion 

Hydrometrocolpos and Sacrococcygeal Teratoma  If an infant has one congenital anomaly, incidence of a second anomaly becomes very high.The presacral area is the most common site of teratomas in infancy. They usually present as a mass in the buttocks and extend into the presacral area (Fig 1 left). The radiograph may

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