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Peer-reviewedCC BYJournal of surgical case reports

Pulmonary dermoid cyst mimicking hydatid cyst: a case report with literature review.

  • Fahmi H Kakamad1,2,3
  • Harem K Ahmed4
  • Amanj K Hamad4
  • Ari M Abdullah5,6
  • Ahmed H Ahmed7
  • Rebaz M Ali8,9
  • Harun Amanj Ahmed10
  • Mohammed Namiq Amin11,12
  • Mohammed Abdullah Othman13
13 affiliations
  1. 1Department of Thoracic and Vascular Surgery, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  2. 2Department of Clinical Sciences, College of Medicine, University of Sulaimani, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  3. 3Kscien Organization for Scientific Research (Middle East Office), Hamdi Street, Sulaymaniyah 46001, Iraq.
  4. 4Department of Pulmonology, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  5. 5Department of Pathology, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  6. 6Department of Pathology, Sulaymaniyah Teaching Hospital, Zanko Street, Sulaymaniyah 46001, Iraq.
  7. 7Department of Radiology, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  8. 8Department of Oncology, Hiwa Cancer Hospital, Shorsh Street, Sulaymaniyah 46001, Iraq.
  9. 9Department of Oncology, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  10. 10Department of Head & Neck Surgery, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  11. 11Department of Scientific Affairs, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
  12. 12Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah 6714415153, Iran.
  13. 13Department of Emergency Medicine, Smart Health Tower, Madam Mitterrand Street, Sulaymaniyah 46001, Iraq.
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Abstract

Intrapulmonary dermoid cyst (mature cystic teratoma) is rare and may mimic common cystic lung diseases, particularly pulmonary hydatid disease. A 26-year-old woman presented with dyspnea and left-sided chest, shoulder, and neck pain. Computed tomography demonstrated a large complex cystic lesion in the left upper lobe with gas locules and associated pleural and pericardial effusions, initially suggesting a hydatid cyst. Video-assisted thoracoscopic excision revealed hair and heterogeneous cyst contents, and histopathology showed mature tissues from multiple germ layers with xanthogranulomatous inflammation, confirming a mature teratoma. The patient remained well at the 3-month follow-up. A focused review of eight reported cases of intrapulmonary teratoma showed heterogeneous presentations and recurrent preoperative diagnostic uncertainty. Intrapulmonary teratoma may present as a complex cystic lung lesion and can be mistaken for a hydatid cyst or a lung abscess.

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Cite

BibTeXRIS
BibTeX
@article{kakamad2026pulmonary,
  title = {{Pulmonary dermoid cyst mimicking hydatid cyst: a case report with literature review.}},
  author = {Fahmi H Kakamad and Harem K Ahmed and Amanj K Hamad and Ari M Abdullah and Ahmed H Ahmed and Rebaz M Ali and Harun Amanj Ahmed and Mohammed Namiq Amin and Mohammed Abdullah Othman},
  journal = {Journal of surgical case reports},
  year = {2026},
  month = oct,
  doi = {10.1093/jscr/rjag941},
  url = {https://europepmc.org/article/MED/42898986},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Pulmonary dermoid cyst mimicking hydatid cyst: a case report with literature review.
AU  - Fahmi H Kakamad
AU  - Harem K Ahmed
AU  - Amanj K Hamad
AU  - Ari M Abdullah
AU  - Ahmed H Ahmed
AU  - Rebaz M Ali
AU  - Harun Amanj Ahmed
AU  - Mohammed Namiq Amin
AU  - Mohammed Abdullah Othman
PY  - 2026
DA  - 2026/10/19
JO  - Journal of surgical case reports
DO  - 10.1093/jscr/rjag941
UR  - https://europepmc.org/article/MED/42898986
AB  - Intrapulmonary dermoid cyst (mature cystic teratoma) is rare and may mimic common cystic lung diseases, particularly pulmonary hydatid disease. A 26-year-old woman presented with dyspnea and left-sided chest, shoulder, and neck pain. Computed tomography demonstrated a large complex cystic lesion in the left upper lobe with gas locules and associated pleural and pericardial effusions, initially suggesting a hydatid cyst. Video-assisted thoracoscopic excision revealed hair and heterogeneous cyst contents, and histopathology showed mature tissues from multiple germ layers with xanthogranulomatous inflammation, confirming a mature teratoma. The patient remained well at the 3-month follow-up. A focused review of eight reported cases of intrapulmonary teratoma showed heterogeneous presentations and recurrent preoperative diagnostic uncertainty. Intrapulmonary teratoma may present as a complex cystic lung lesion and can be mistaken for a hydatid cyst or a lung abscess.
SN  - 2042-8812
ER  -