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Biomedical subjects

D S Mendelson

Publications and source records attributed to D S Mendelson.

60 records · Page 4Linked to original sources
PubMedDate not supplied

CT manifestations of infectious mononucleosis.

A case of infectious mononucleosis (IM) which, on computed tomography (CT) scan, mimicked the morphologic features of lymphoma is reported. The CT findings in this case include generalized lymphadenopathy, splenomegaly, and focal low-attenuation splenic lesions in a fifty-three year old woman; these findings have not previously been described in patients with IM. This is most likely because IM is usually a clinical diagnosis confirmed by serologic testing. Imaging modalities such as CT scan have not routinely been utilized to support this diagnosis.

Diagnosis, Differential↗
PubMedDate not supplied

Systemic venous enhancement patterns during dynamic abdominal CT.

In 25 patients we assessed the enhancement of abdominal venous structures during dynamic computed tomography (CT). The degree of venous enhancement demonstrated great variation. In six instances (out of 250 observations) a vessel was visually perceived as not enhancing and potentially thrombosed, including three gonadal veins. CT measurements were helpful in identifying enhancement, but were occasionally low enough that thrombosis remained a radiological consideration. The great variation in venous enhancement makes the diagnosis of thrombosis suspect, based on CT alone. Corroboration of this finding is suggested, when clinically relevant.

Abdomen↗
PubMedDate not supplied

Pneumothorax and pneumomediastinum after laparoscopic surgery.

Pneumothorax, pneumomediastinum, pneumopericardium, and subcutaneous emphysema have been described as complications of laparoscopy. This study evaluates the incidence and significance of these extra alveolar collections of air. We found that pneumomediastinum with or without pneumothorax was not associated with significant morbidity and is more likely after laparoscopic fundoplication than other laparoscopic surgeries. The presence of pneumomediastinum after fundoplication is a normal finding. However, pneumothorax has clinical significance and should be considered pathological.

Female↗
PubMedDate not supplied

Computed tomography of mediastinal collaterals in SVC syndrome.

A patient undergoing treatment for abdominal lymphoma presented with a superior vena cava (SVC) syndrome. The presence of a wide mediastinum and "nodular" mediastinal densities on CT presented a diagnostic problem, necessitating thoracotomy. The thoracotomy was negative for tumor or infection. We believe that the presence of an indwelling catheter and mediastinal lipomatosis resulted in the SVC syndrome. The "nodular" densities represented an unusual set of mediastinal collaterals that must be distinguished from adenopathy.

Catheters, Indwelling↗
PubMedDate not supplied

CT evaluation of the greater sciatic foramen in patients with sciatica.

Sciatic and lower extremity neurologic symptoms may be from pathologic involvement of the sacral plexus or sciatic nerve in the region of the greater sciatic foramen. Twenty-five patients were reviewed who presented consecutively over a 4 year period with sciatic symptoms secondary to pathologic changes in the greater sciatic foramen. Malignant neoplasm alone (18 patients) and malignant neoplasm associated with infection (two patients) account for most of these cases. Neurogenic tumors (three patients), both benign and malignant, and infection alone (three patients) were less frequent. Although sciatic symptoms usually derive from spinal abnormalities, the evaluation of sciatic symptoms should not be considered complete without CT scanning of the greater sciatic foramen.

Adult↗