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Biomedical subjects

P Schoning

Publications and source records attributed to P Schoning.

5 recordsLinked to original sources
PubMed1992

Metastatic granulosa cell tumor in a mare.

A 5-year-old Quarter Horse mare was referred for evaluation of an acute non-weightbearing lameness of the left hind limb in which musculoskeletal abnormalities had not been detected. After admission, the mare had signs of colic. Exploratory laparotomy revealed the left ovary to be large, masses in the left sublumbar space, and diffuse infiltration of the mesentery, omentum, liver, and spleen with variably-sized masses. The mare was euthanatized, and granulosa cell tumor was identified on histologic examination of the left ovary, left sublumbar and cranial thoracic lymph nodes, omentum, mesentery, liver, spleen, and lung.

Animals↗
PubMed1992

Frozen cadaver. Antemortem versus postmortem.

Three categories of skin from Hanford miniature swine were examined microscopically: normal, unfrozen skin; skin exposed to -75 degrees C air for 5 min, 6 h postinjury; and skin frozen postmortem. Frostbitten skin (antemortem freezing) was characterized grossly by a purple discoloration and microscopically by dilated, blood-filled, superficial capillaries. Other changes in the frostbitten skin were vacuolated epithelial cells and dermal edema. Unfrozen skin (controls) and skin frozen postmortem were more difficult to differentiate. However, the epidermis of the latter usually was compressed and more basophilic. We concluded that skin frozen antemortem could be separated from skin frozen postmortem by its intense hyperemia, characterized grossly as a purple discoloration and microscopically by engorged capillaries.

Animals↗
PubMed1992

Canine distemper with spinal cord lesions.

A case of distemper in a 6-month-old dog is described. The dog was presented with a history of tetraparesis suggestive of trauma. Neurological examination and clinical pathology findings of lymphopenia and pleocytosis suggested a viral cause. Microscopic findings of a nonsuppurative meningoencephalomyelitis with numerous intranuclear inclusions in the cerebellum, brain stem, and all parts of the spinal cord suggested a diagnosis of distemper.

Animals↗
PubMed1990

Experimental frost-bite in Hanford Miniature Swine. III. Sweat gland changes.

Frost-bite was produced in five Hanford Miniature Swine by exposure to -75 degrees C air for 1, 3, 5, 10 or 20 min. Biopsies were taken at 0, 3, 6, 12, 24 and 48 h and 1, 2 and 15 weeks. Sweat glands were evaluated microscopically and graded: 0, no change to 5, severe change. Sweat gland changes were mild by 1 h and moderate by 24 h for all freeze groups, except the 1-min freeze group. Severe morphological changes were of two types: degeneration/necrosis and squamous metaplasia. These changes suggest that hyperhidrosis, as a sequel to frost-bite, may be more subjective than real and that squamous cell carcinoma, as a delayed sequel to frost-bite, could originate from sweat glands as well as from the epidermis.

Animals↗