A rare case of chondrosarcoma at the posterior costovertebral junction: a case report.

Unlabelled: Chodrosarcoma is the third most common primary malignancy of the bone, it is considered the most frequent malignancy of the chest wall. Chondrosarcoma at the costovertebral junction is rare and few cases are described in the literature.

Case Presentation: The authors present a case of a 47-year-old female with a complaint of chronic pain in the right posterior upper chest, dyspnea, and episodes of dizziness.

Soft Tissue Rosai-Dorfman Disease: Case report.

Rosai-Dorfman disease (RDD) is a rare benign proliferative histiocytic disorder characterised by massive lymphadenopathy. While extranodal involvement can occur in generalised RDD, isolated soft tissue RDD (STRDD) is extremely rare. We report a 17-year-old male patient who presented to the maxillofacial outpatient department of the Sultan Qaboos Hospital, Salalah, Oman, in 2015 with a painless cheek mass which had been slowly growing over the previous two months.

Syringocystadenomapapilliferum Arising from the External Auditory Canal: A Rare Tumor in a Rare Site.

Syringocystadenomapapilliferum is an extremely rare benign adnexal tumor of the scalp and face region. This is a report of the case of a female patient with syringocystadenomapapilliferum originating from the bony cartilaginous junction of the external auditory canal. A provisional diagnosis of an inflammatory polyp was made based on the clinical and radiological findings.