Brachyury is a marker for notochord-derived tissues and neoplasms, such as chordoma. However, the prognostic relevance of brachyury expression in chordoma is still unknown. The improvement of tissue microarray technology has provided the opportunity to perform analyses of tumor tissues on a large scale in a uniform and consistent manner. This study was designed with the use of tissue microarray...

BACKGROUND Chordoma, a rare cancer, is usually treated with surgery and/or radiation. However, very limited characterizations of chordoma cells are available due to a minimal availability (only two lines validated by now) and the extremely long doubling time. In order to overcome this situation, we successfully derived a cell line with a shorter doubling time from the first validated chordoma l...

The inflammatory microenvironment plays a critical role in the development and progression of malignancies. In the present study, we aimed to evaluate the prognostic value of lymphocyte-related inflammation and immune-based prognostic scores in patients with chordoma after radical resection, including the neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), monocyte-lymphocyte ra...

Chordomas are rare mesenchymal tumors occurring exclusively in the midline from clivus to sacrum. Early tumor detection is extremely important as these tumors are resistant to chemotherapy and irradiation. Despite continuous research efforts surgical excision remains the main treatment option. Because of the often challenging anatomic location early detection is important to enable complete tum...

PATIENT Male, 48 FINAL DIAGNOSIS: Chordoma Symptoms: - MEDICATION - Clinical Procedure: - Specialty: Neurology. OBJECTIVE Challenging differential diagnosis. BACKGROUND Fluorodeoxyglucose positron emission tomography (FDG-PET) has been used in imaging and staging of malignancies including sacral chordomas. CASE REPORT The author's report describes the coincident pathological diagnosis o...

A chordoma is an uncommon tumor that originates from the remnants of the notochord and most commonly involves the cranial and caudal regions of the axial skeleton. Chordoma has been described in laboratory animals such as dogs, rats, minks, and ferrets. This report describes a case of a chordoma in the tail of a ferret. Grossly, a grayish-white, expansile, subcutaneous soft-tissue mass was obse...

Sacrococcygeal chordoma is a malignant tumour originating from remnants of the notochord. Chordomas are slow-growing tumours whose symptoms develop insidiously. We present the case of a 72-year-old woman with a 6-month history of genital pain radiating to the perianal area and exacerbating when she was in a sitting position. MRI and PET studies revealed a large mass in the sacrococcygeal region...

FNAB is a safe, simple and quick method of early preoperative diagnosis of chordoma. However, because of various overlapping cytologic features between chordoma, chondrosarcoma and metastatic clear cell carcinoma, it is important to recognize the various appearances of chordoma in FNAB [6,7]. The cytologic features, combined with classic radiologic and clinical presentations, allow for correct ...

Chordomas are rare midline tumors of the central nervous system which arise from the remnants of the primitive notochord and have unique diagnostic and management challenges. Although recommended treatment for chordoma is radical resection, this may require extended skull base approaches. We report a case of low clival chordoma in a teenage patient which was successfully treated by dorsolateral...

Dedifferentiated chordoma is a rare primary malignant bone cancer. Most cases of dedifferentiated chordoma (DC) are transformed from recurrent chordoma after surgical resection or radiation. The prognosis of DC is extremely poor because of the aggressive nature of the tumor and the potential distant metastases. We report a case of de novo DC of the sacrum in a patient without prior surgical pro...