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Biomedical subjects

W R Hudson

Publications and source records attributed to W R Hudson.

14 recordsLinked to original sources

Penile metastasis secondary to supraglottic squamous cell carcinoma: review of the literature.

We report an unusual supraglottic carcinoma metastasis to the penis. Review of the literature revealed more than 300 cases of metastatic lesions to the penis, excluding primary neoplasms from skin, urethra and blood. Of these metastatic neoplasms 16 originated above the diaphragm, only 4 of which were from the head and neck region. The most common neoplastic metastases to the penis in order of frequency were from the bladder, prostate, rectum and rectosigmoid areas, and kidney in 32, 30, 13 and 8% of the cases, respectively. The incidence of other primary tumor sites that metastasize to the penis is extremely rare.

Carcinoma, Squamous Cell

Tomographic diagnosis of palatal defects.

We present the results of a pilot study conducted to evaluate the effectiveness of palatal tomography in patients suspected of having palatal defects not detectable by other methods. Twelve patients were involved in the projects, ranging in age from 3 to 11 years. There were 8 boys and 4 girls. Each patient was evaluated with voice recordings, lateral cineradiographic x-rays, and palatal tomograms. Nine of the 12 patients were found by tomography to have palatal defects that had not been detected either by cineradiography or by clinical investigation, including physical examination of the palate. The results of this study are presented with clinical findings.

Child

A minimum-volume, flow-through system for rearing frog tadpoles: aquarium.

A flow-through system requiring a low flow rate (4-10 ml/minute/aquarium) was developed for rearing tadpoles. This permitted tadpoles to be raised in tap water that had been dechlorinated and acidified. The aquarium consisted of a 7-liter plastic outer shell. A screen-bottomed basket, inserted into the shell, facilitated handling of the tadpoles. A bottom-scraper and flushing system permitted periodic removal of solid wastes.

Animals

Diagnosis of palatal defects by trispiral tomography: a pilot study.

A pilot study is presented in which 12 selected patients, ages 3-11 years, were evaluated for a palatal defect utilizing trispiral tomography. Each patient, because of speech and hearing abnormalities, was evaluated by a speech pathologist and an otolaryngolgist and voice recordings, audiometry, tympanometry and plain and cine radiographic X-rays were obtained. Those children with speech and hearing abnormalities in whom the question of a palatal defect was raised underwent trispiral palatal tomography. Nine of the 12 patients selected for tomography demonstrated a palatal defect that was not detected by other means. Trispiral tomography appears to be a useful tool in the diagnosis of suspected palatal defects in selected patients.

Child

Sjögren's syndrome and serous otitis media.

Extrasalivary lymphoid abnormalities in Sjögren's syndrome are well described. Patients have been found to have lymphoid infiltration of many organ systems. The nature of the lymphoid abnormalities constitutes a spectrum ranging from benign to malignant disease. A case of an elderly patient with long standing Sjögren's syndrome is presented because of the unusual manifestation of a benign lymphoid mass in the nasopharynx producing unilateral eustachian tube obstruction and serous otitis media. Serous otitis media associated with Sjögren's syndrome is recognized, but to our knowledge in previous cases an extrasalivary lymphoid abnormality has not been implicated as the underlying pathology.

Aged

Rhincerebral phycomycosis and internal carotid artery thrombosis.

This is a report of a case of internal carotid artery occlusion associated with rhinocerebral phycomycosis. In 18 autopsied similar cases that have been reported previously, hyphae were described in the walls of the internal carotid artery. Four survivors have been reported even though arteriograms demonstrated internal carotid artery occlusion, and a high index of suspicion for this complication should be maintained in all patients with rhinocerebral phycomycosis.

Adolescent

Angioneurotic edema. A review of modern concepts.

We review the subject of angioneurotic edema with special emphasis on the more clearly defined entity of hereditary angioneurotic edema. The clinical presentations of the various forms of angioneurotic edema are discussed. Attention is directed toward the attempts that have been made to define this group of diseases in terms of their underlying biochemical mechanisms. A simplified schema of the serum complement system is presented. We conclude that only after we understand such biochemical interactions will we able to effect a more definitive form of therapy for the angioneurotic edemas.

Acute Disease

Aspergillosis of the paranasal sinuses.

Aspergillosis of the paranasal sinuses may occur as a chronic disease in an otherwise healthy person. This infection is usually confined to a single paranasal sinus, the maxillary antrum, though it can involve the orbit and may initiate with findings of proptosis and decreased vision. The disease is characterized by a wide range of initial symptoms, and should be considered as a possible diagnosis in sinusitis refractory to antibiotics and antral lavage. Conservative surgical debridement of involved tissues and drainage of sinus, with or without adjunctive antifungal therapy, results in cure of this disease.

Adolescent

Cerebrospinal rhinorrhea: diagnosis and management.

The role of the otolaryngologist in the diagnosis and management of cerebrospinal fluid rhinorrhea is discussed. One hundred eight cases of cerebrospinal rhinorrhea were studied with emphasis on cause, localization, and treatment. Extracranial approaches produce minimal morbidity and should be considered as possible treatment for every patient with cerebrospinal rhinorrhea with leaks located in the frontoethmoid complex, cribriform plate, or sphenoid sinus region.

Cerebrospinal Fluid Rhinorrhea

Exostosis of the mandibular coronoid process.

Abnormal enlargement of one or both mandibular coronoid processes may lead to a limited mandibular excursion. A case of unilateral coronoid process exostosis severely limiting mandibular function is described. A review of the literature pertinent to this uncommon abnormality is presented. The various entities of coronoid process osteochondroma, osteoma, exostosis, hypertrophy and developmental anomaly, all producing a similar picture of coronoid process enlargement are discussed. The proper use of the available radiographic techniques simplifies the diagnosis of these uncommon maladies, as long as a coronoid process abnormality is considered in the differential diagnosis of restricted mandibular movement.

Adult

Treatment of radiation-induced tissue injury by hyperbaric oxygen.

Hyperbaric oxygen therapy appears to be a beneficial adjunctive treatment modality in the management of radionecrosis of bone and soft tissue in the head and neck. The mechanism of such wound healing enhancement appears to be related to oxygen stimulation of fibroblastic activity and neovasculation. In this pilot study, involving 13 cases of refractory mandibular radionecrosis treated with hyperbaric oxygen, complete healing of soft tissue disease with covering of exposed bone has been noted in seven cases 11 to 27 months posttreatment; transient healing was seen in three cases; moderate to marked improvement in soft tissue disease has been noted in three cases. Pain relief was marked in six cases, moderate in four cases, and slight in one case of the 11 patients with significant pretreatment pain. Radiographic improvement was slight to moderate in ten cases. Four of the five patients with pathologic fractures developed a firm fibrous union of the mandibular segments during or shortly after treatment. Three additional cases of head and neck radionecrosis of other sites have noted significant improvement in their lesions during treatment. Three other patients with radionecrosis of the foot, hip, and vagina have also been treated with good results only in the vaginal case. None of the 19 patients treated with hyperbaric oxygen developed persistent or significant complications.

Female