Biomedical subjects
Publications and source records attributed to A Galván Parrado.
We report a maxillary brown tumor in a patient with secondary hyperparathyroidism. The association of brown tumor and secondary hyperparathyroidism is incommon.
Nowadays the complications arising from sinusitis are rare. However its seriousness can even cause death. Intracranial complications are much more uncommon than the orbital ones. However, slight symptoms can appear, which may disjunct the correlation between clinical-radiology and the severity of the infection. The diagnosis is fundamentally based on the TAC, and early treatment with intravenous anti-biotherapy should be implemented, being followed by drainage surgery of the sinus and empyema. We have presented a case which evolved favourably and revised all the literature pertaining to it.
Orbital cellulitis is a rare, potentially serious but complication of acute sinusitis. It is more frequent and benign in children, but in adults usually requieres surgical drainage of the affected sinus. We report a case of aggressive evolution with permanent blindness in an adult without general or local risk factors, in spite of adequate treatment. The literature is reviewed.
Neurinomas or schwannomas of the jugular foramen are rare tumors whose differentiation from tumors of the jugular body may be difficult because they share common symptoms. Since schwannomas at this site are less aggressive than tumors of the jugular body and certain elements of their treatment differ, it is important to make a correct diagnosis promptly. A well-documented case of schwannoma of the jugular foramen is reported and its differential diagnosis is discussed in the light of the literature.
The risk of second primary tumors of the respiratory and upper digestive tract developing in patients treated for head and neck cancer is well known. In these cases, the entire mucous membrane surface of the tract is affected and predisposed to metachronous or synchronous neoplasms. The mucosa of these patients is extremely susceptible to external carcinogenic stimuli. We report the results obtained in 83 patients with cancer of the oral cavity, pharynx, or larynx who experienced at least one second primary tumor. The most common site of the second primary was the lung (43.2%). We reviewed tobacco and alcohol use, treatments, and survival.