A case of recurrent chondroblastic osteosarcoma mandible

<p class="abstract">Osteosarcoma is an uncommon primary malignant tumor of bone. Craniofacial osteosarcomas constitute only about 6.5–7% of all osteosarcomas. The most common histopathologic type is chondroblastic type in head and neck group and osteoblastic in extremity group. We present a case report of 21 year old male patient with chondroblastic osteosarcoma with two episodes of recurrence. The tumour was dealt with left hemimandibulectomy followed by radiochemotherapy. After first recurrence he underwent right hemimandibulectomy. During second recurrence excision of growth followed by radiochemotherapy was done. Thus an aggressive multi-modality approach was adopted for treatment. Osteosarcoma is an uncommon primary malignant tumor of bone. Craniofacial Osteosarcomas are considered a separate category in view of their low histologic grade, less frequent metastases and better prognosis. The most common presentation is local swelling with or without pain. Aggressive surgical approach with post-surgical radiochemotherapy can be an effective tool.</p>

Detection of additional primary malignant tumor in cancer survivors: the use of PET/CT for image-guided biopsy

Background PET/CT is a well-established tool in the diagnostic workup of oncology patients. With the advance in diagnosis and therapy of oncology patients, survivors are at risk of developing additional malignancies. This study aimed to evaluate the yield of 18F-FDG PET/CT in biopsy guidance for the detection of unexpected additional primary malignancies in patients with known primary cancers. Medical records of patients underwent 18F-FDG PET/CT scans from July 2015 to December 2017 were reviewed, and 644 patients (346 men and 298 women; mean age 59.7, age range from 21: 78) who had been scanned for known cancers were included in this study. Lesions that were newly detected on PET/CT had not been previously detected by other modalities and were atypical in location for metastases were interpreted as suggestive of a new primary malignant tumor. These image findings guide the biopsy for histopathology, immune-histochemistry to confirm the diagnosis. Results PET-positive findings suggestive of new primary malignant tumors were found in 30 (4.67%) of 644 patients. In 21 (3.26%) of 644 patients, these lesions were pathologically proven to be malignant (20 true positive and 1 case false negative). Proven sites were lung (5 cases), colorectal (5 cases), breast (2 case), liver (2 cases), head and neck (2 cases), anal (1 cases), gastric (1 case), lymphoma (1 case), esophagus (1 case), and prostate (1 case). In 9/30 (30%) patients suspected to have additional primary, PET was falsely positive. Biopsy was taken for histology and immune-histochemistry with follow-up record that confirms the diagnosis to validate the PET/CT findings. Conclusions With the use of 18-F FDG PET/CT image- guided biopsy, additional primary malignancies were detected in at least 3.26% of oncology patients; thus, patient cure is possible if such malignancies are treated promptly and aggressively.

Double primary malignant tumor in a centenarian female: Case report and review of literature

A hundred and three year old female patient was evaluated for ulcer over the nasion area and a mass arising from the right upper eyelid, appearing two months apart. Histopathology revealed nasion ulcer as basal cell carcinoma while right eyelid mass was diagnosed as poorly differentiated squamous cell carcinoma. Based on these findings and the time gap between two lesions a diagnosis of synchronous double primary malignant tumor was made. Although the prevalence of multiple primary malignant tumor is highest in breast, colo-rectum and prostate cancer we report a rare case of double primary malignant tumor of the eyelid and nasion in a centenarian female.

A Case of Uterine Carcinosarcoma Detected Simultaneously with Breast and Colon Cancer (Triple Primary Malignant Tumor)

Uterine carcinosarcoma, also known as malignant mixed Mullerian tumor of the uterus, is rare and rarely diagnosed simultaneously with cancers in other organs. We report a case of a 63-year-old woman who was simultaneously diagnosed with uterine carcinosarcoma, breast cancer, and colon cancer.

Undifferentiated osteosarcoma of the mandible oblique line: a case report.

Osteosarcoma (OS) is the most common primary malignant tumor of bone. However, osteosarcoma located in the jaw (JOS) is rare, aggressive and malignant, constituting 5% to 13% of all cases of skeletal OS. JOS has a male predilection with 34 to 36 years old. Prognostic is associated with several variables, such as tumor location, initial size, existence or absence of metastasis, gender, age, cytogenetic chances and respond to chemotherapy. We report the unusual case of osteosarcoma in the mandible on retromolar area arising from primitive bone forming mesenchyme; most often arises in the metaphysis of long bones of the extremities.