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Clinical Image
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Available online 28 October 2024
Pulmonary Hamartoma With Rare Imaging Features
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Xu-ping Chena, Xiao-Dong Yangb, Shi-xu Hea,
Corresponding author
hsx2021@foxmail.com

Corresponding author.
a Department of Respiratory and Critical Care Medicine, Guangyuan Central Hospital, Guangyuan, Sichuan Province, China
b West China Hospital of Sichuan University, Chengdu, Sichuan, China
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A 34-year-old male non-smoker was admitted for incidentally found pulmonary nodules. He had previously been misdiagnosed with “pulmonary tuberculosis”. Computed tomography (Fig. 1) revealed numerous round nodules of varying sizes and densities, some with a characteristic “popcorn” calcification, diffusely distributed primarily in the upper and middle lobes of the right lung. The patient underwent a thoracotomy, during which many hard, grayish-white nodules measuring 0.3–3cm in diameter were observed. The postoperative pathological results confirmed the diagnosis of pulmonary chondromatous hamartoma (PH) which primarily comprises cartilage. At his 4-year follow-up, the patient remained asymptomatic with no evidence of recurrence. PH is the most common benign tumor of the lung, characterized by solitary nodules on the periphery of the lungs, constituting 5–8% of all solitary pulmonary nodules.1 However, the PH nodules reported in this case exhibit a popcorn-like diffuse distribution, which is extremely uncommon. Therefore, identification of pulmonary hamartomas is still necessary for cases involving multiple calcified nodules.

Fig. 1.

CT scan reveals numerous round nodules of varying sizes and densities with “popcorn calcification” shape, diffusely distributed primarily in the upper and middle lobes of the right lung.

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Conflict of Interests

The authors state that they have no conflict of interests.

Reference
[1]
K.S. Sodhi, V. Virmani, S.K. Jindal, N. Khandelwal.
Pulmonary hamartoma.
Ann Acad Med Singap, 38 (2009), pp. 1110
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