[Undifferentiated high-grade pleomorphic sarcoma of the orbit: a case report]. / Sarcoma pleomorfo indiferenciado de alto grado orbitario: a propósito de un caso.

CASE REPORT: A 27-year-old female presented to us with a complaint of proptosis of her right eye. Imaging tests showed an extraconal mass in the medial orbital wall, which affected the medial rectus. The tumor was removed and adjuvant radiotherapy was required. The histological examination showed an undifferentiated high-grade pleomorphic sarcoma of the orbit. There has not been recurrence after 6 years of follow-up. DISCUSSION: Undifferentiated high-grade pleomorphic sarcoma is an uncommon cause of malignant orbital mass. It grows fast and can metastasize, so extension studies are required. Surgical excision is the treatment of choice.

[Thoracic tuberculosis in adults. A comparative study of radiological findings of HIV seropositive and seronegative patients]. / Tuberculosis torácica en el adulto. Estudio comparativo de los hallazgos radiológicos entre enfermos VIH positivo y negativo.

We compare the radiologic manifestations of chest TB in three groups of patients: HIV patients (52 cases), HIV negative patients (85 cases and 100 cases). Initial radiologic findings were similar in the two seronegative groups, even though there is an eight-year interval between both series. However, seropositive patients have a higher risk of acquiring the infection (x 2.25), of extrathoracic disease (x 4.22), of coincidental infections (p < 0.0002) and of progression of the disease p < 0.0003) than the normal population. Lymphadenopathy and miliary TB are much more common in the HIV positive patients (x 6.23 and x 44 respectively). Cavitation, pulmonary scarring, volume loss and calcification are more frequent among the seronegative patients (p < 0.03), as well as pleural disease (p < 0.0001).