Tumor-to-Tumor Metastasis: Pulmonary Carcinoid Metastasizing to Solitary Fibrous Tumor
| Autor: | Hiroshi Hamakawa, Yutaka Shishido, Yutaka Takahashi, Shigeo Hara, Akihiro Aoyama |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Image-Guided Biopsy
Pathology medicine.medical_specialty Solitary fibrous tumor Lung Neoplasms Radiography Enolase Carcinoid Tumor 030204 cardiovascular system & hematology Benign tumor Metastasis Lesion 03 medical and health sciences 0302 clinical medicine medicine Humans Neoplasm Metastasis Aged 80 and over Lung business.industry General Medicine Articles medicine.disease Primary tumor medicine.anatomical_structure 030220 oncology & carcinogenesis Solitary Fibrous Tumors Female medicine.symptom business Tomography X-Ray Computed |
| Zdroj: | The American Journal of Case Reports |
| ISSN: | 1941-5923 |
| Popis: | Patient: Female, 81 Final Diagnosis: Pulmonary carcinoid tumor • solitary fibrous tumor Symptoms: Diaphoresis Medication: — Clinical Procedure: Surgery Specialty: Oncology Objective: Rare disease Background: Tumor-to-tumor metastasis is an uncommon phenomenon in which a primary tumor metastasizes into another tumor. Case Report: An 81-year-old Asian woman was referred to our hospital for evaluation and treatment of a solid mass in the right middle lung lobe that had rapidly enlarged for 1.5 years compared to that observed over the last 5 years. On computed tomography (CT), the mass was 68×60 mm, and 2 different tumors appeared to exist in the upper portion of the mass. Blood examination findings revealed high serum levels of progastrin-releasing peptide and neuron-specific enolase. Based on the radiographic course of the tumor and elevated levels of tumor markers, we suspected that a new malignant tumor, such as a neuroendocrine tumor, had developed dorsally adjacent to the benign tumor. CT-guided percutaneous needle biopsy of the lung indicated a solitary fibrous tumor (SFT), which did not lead to the diagnosis of another tumor adjacent to the original tumor. Therefore, a right middle lobectomy was performed. The resected specimen contained 2 different tumors: an SFT and a typical carcinoid without mitosis or necrosis. On microscopic examination, they were separated from each other by normal alveolar tissue. In addition, a typical carcinoid was also observed inside the SFT lesion, completely enclosed by the SFT tissue. These findings suggested that the carcinoid metastasized to the SFT in the same lung lobe. Conclusions: To the best of our knowledge, this is the first case of a pulmonary typical carcinoid metastasizing to an intraparenchymal SFT. |
| Databáze: | OpenAIRE |
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