Case History: 30-year-old male with discomfort in left groin region due to mass/swelling for one year.Mass was smaller in size then gradually progressed asymptomatically. No evidence of any pain in groin region and no skin discoloration.
Mass was smaller in size then gradually progressed asymptomatically.
Figure 1. A fusiform, lucent defect with scalloping of the inner cortex and periosteal reactionis noted with extension into the soft tissue along with stippled calcification of the cartilage matrix.
Figure 2. A large lytic expansile mass lesion arising from pubic bone causing underlying cortical expansion and destruction with narrow zone of transition. Central internal ring and arc calcification is also seen.
Figure 3. A large intramedullary mass lesion is noted arising from the body and near a portion of the left superior and inferior pubic rami. The lesion appears hyperintense on T2WI, STIR and hypointense on T1WI. The lesion has a short bony stalk with direct continuation with the underlying bone.
Figure 4. The lesion shows heterogeneous contrast enhancement.
Diagnosis: Chondrosarcoma of pubis
The bulk of the tumor is noted to protrude into the medial aspect of the left upper thigh.
Above findings of large cartilaginous matrix tumor with heterogeneous contrast enhancement, cortical expansion, and destruction suggests Chondrosarcoma
Chondrosarcomas are malignant cartilaginous tumors.
Wide surgical resection is the treatment of choice due to the increased incidence of local recurrence and metastatic lesions with incomplete resection.
