IMAGE OF THE MONTH
Benign Mature Cystic Teratoma Mimicking Normal Mandibular Development Joyce Wu, MBBS,1 Selvan Pather, MD,2 Jenny Kim, MD3 1
RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, Australia
2
Division of Gynecologic Oncology, Sydney Cancer Centre and University of Sydney, Royal Prince Alfred Hospital, Sydney, Australia
3
Division of Anatomical Pathology, Royal Prince Alfred Hospital, Sydney, Australia
A
24-year-old woman presented with lower abdominal pain and urinary frequency. She had not previously had sexual intercourse. Transabdominal ultrasound examination showed a multicystic mass in the right ovary (Figure 1), with a large area suggestive of calcification (arrow). The patient’s serum CA 125, alpha-fetoprotein and β-hCG levels were normal. Laparoscopy was performed, and a large cystic teratoma was noted in the right ovary. This was removed laparoscopically with preservation of normal ovarian tissue. Macroscopically, the excised teratoma showed a wellformed mandible with bone, teeth, skin, and hair (Figure 2). The symmetrical and organized growth of the tumour shown in this case is rarely seen in benign teratoma. Only a few cases of mandible-like structures in mature cystic
Figure 1.
teratoma of the ovary have been reported,1–4 one of which described relatively complete mandibular growth with 14 teeth.4 REFERENCES 1. Daw E. A mandible-like structure in an ovarian dermoid cyst. Br J Clin Pract 1971;25(4):185–6. 2. McGinnis JP Jr, Parham DM. Mandible-like structure with teeth in an ovarian cystic teratoma. Oral Surg Oral Med Oral Pathol 1978;45(1):104–6. 3. Erian M. Unusual contents of a dermoid cyst of the ovary removed by laparoscopy. Aust N Z J Obstet Gynaecol 1994;34(2):195–6. 4. Chavan SS, Yenni VV. Mandible like structure with fourteen teeth in a benign cystic teratoma. Indian J Pathol Microbiol 2009;52:595–6.
J Obstet Gynaecol Can 2013;35(11):969
Figure 2.
NOVEMBER JOGC NOVEMBRE 2013 l 969
Benign Mature Cystic Teratoma Mimicking Normal Mandibular Development Joyce Wu, MBBS,1 Selvan Pather, MD,2 Jenny Kim, MD3 1
RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, Australia
2
Division of Gynecologic Oncology, Sydney Cancer Centre and University of Sydney, Royal Prince Alfred Hospital, Sydney, Australia
3
Division of Anatomical Pathology, Royal Prince Alfred Hospital, Sydney, Australia
A
24-year-old woman presented with lower abdominal pain and urinary frequency. She had not previously had sexual intercourse. Transabdominal ultrasound examination showed a multicystic mass in the right ovary (Figure 1), with a large area suggestive of calcification (arrow). The patient’s serum CA 125, alpha-fetoprotein and β-hCG levels were normal. Laparoscopy was performed, and a large cystic teratoma was noted in the right ovary. This was removed laparoscopically with preservation of normal ovarian tissue. Macroscopically, the excised teratoma showed a wellformed mandible with bone, teeth, skin, and hair (Figure 2). The symmetrical and organized growth of the tumour shown in this case is rarely seen in benign teratoma. Only a few cases of mandible-like structures in mature cystic
Figure 1.
teratoma of the ovary have been reported,1–4 one of which described relatively complete mandibular growth with 14 teeth.4 REFERENCES 1. Daw E. A mandible-like structure in an ovarian dermoid cyst. Br J Clin Pract 1971;25(4):185–6. 2. McGinnis JP Jr, Parham DM. Mandible-like structure with teeth in an ovarian cystic teratoma. Oral Surg Oral Med Oral Pathol 1978;45(1):104–6. 3. Erian M. Unusual contents of a dermoid cyst of the ovary removed by laparoscopy. Aust N Z J Obstet Gynaecol 1994;34(2):195–6. 4. Chavan SS, Yenni VV. Mandible like structure with fourteen teeth in a benign cystic teratoma. Indian J Pathol Microbiol 2009;52:595–6.
J Obstet Gynaecol Can 2013;35(11):969
Figure 2.
NOVEMBER JOGC NOVEMBRE 2013 l 969
