Chondromesenchymal hamartomas in a 24-year-old male mimicking a posterior mediastinal tumor and a 5-month-old boy with postoperative disseminated intravascular coagulation: two case reports

Chest wall and nasal chondromesenchymal hamartoma in a toddler: treated during a global pandemic

We report an extremely rare case of a synchronous left chest wall and left maxillary sinus chondromesenchymal hamartoma in a toddler female. Although the lesions appeared malignant on imaging, they were benign by biopsy. The enlarging left anterior chest wall mass was surgically resected to prevent cardiovascular compression. The significant chest wall defect was reconstructed using the bird-cage technique with overlying pectoralis major muscle flap and native skin. The lesions at the left posterior rib and left maxillary sinus were closely observed. This case is the first reported synchronous chest wall and maxillary sinus chondromesenchymal hamartoma.

Hamartochondroma Pleural Lesion Mimicking Liposarcoma: A Case Report

Heterogeneous masses developing in the pleural cavity are most often malignant and can pose diagnostic challenges. Fibrous tumors of the pleura, liposarcoma, thymoma or lipoma most frequently affect this anatomic area. Surgical exploration and resection are often mandatory to make the definitive diagnosis. We report the case of a 54-year-old women who presented with an epigastric and right sub costal pain. A complete preoperative workup revealed a large tissular and fatty mass in the right costo-diaphragmatic angle suggestive of liposarcoma. Surgical resection resulted in the surprising diagnosis of hamartochondroma.