An adult, female red-tailed hawk () was presented for examination after being found unable to fly on a private citizen's property. Further diagnostic testing revealed a vascular, soft tissue mass arising from the serosal surface of the proximal proventriculus. Postmortem histological and immunohistochemical examination of the mass revealed an unusual mesenchymal tumor with features consistent with a leiomyoma or low-grade gastrointestinal stromal tumor.
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http://dx.doi.org/10.1647/2018-365 | DOI Listing |
J Family Med Prim Care
December 2024
Department of Obstetrics and Gynecology, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India.
Gastrointestinal stromal tumors (GISTs) are rare mesenchymal tumors that arise from interstitial cells of Cajal. Due to vague presentation, location and confusing imaging studies, they tend to mimic gynaecological tumors. They usually diagnosed intra-operative and histopathology followed by tumor specific receptors such as KIT, CD34, CD 117 and DOG 1 are mainstay of diagnosis of GIST.
View Article and Find Full Text PDFWorld J Nucl Med
December 2024
Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe, Jerbai Wadia Road, Parel, Mumbai, Maharashtra, India.
Ewing's sarcoma (ES) is a mesenchymal origin malignant neoplasm that affects children and adolescents. It is the second most common type of bone sarcoma and accounts for approximately 1.5% of all childhood cancers with an annual incidence of 1 to 3 cases per million children under 16 years of age.
View Article and Find Full Text PDFCureus
November 2024
Department of Pediatric Dentistry, Medical University "Prof. Dr. Paraskev Stoyanov", Varna, BGR.
Cementoblastoma is a benign odontogenic mesenchymal tumor characterized by cementum production. Cementoblastoma is considered a relatively rare neoplasm with a predilection to the posterior region of the mandible. The main clinical differential diagnoses include hypercementosis, cemento-osseous dysplasia, condensing osteitis, idiopathic osteosclerosis, osteoblastoma, odontoma, and osteosarcoma.
View Article and Find Full Text PDFNeurol Sci
December 2024
Neurosurgery Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy.
Background: Non-meningothelial intracranial mesenchymal tumors are a heterogeneous group of central nervous system neoplasms endowed with great variability clinically and histologically. For this precise reason, significant difficulties exist in specifically cataloguing tumor entities with such distant characteristics and such uncertain clinical course.
Case Description: In an attempt to increase the knowledge inherent in this type of central nervous system lesions we report a case of a rare and unusual myxoid mesenchymal tumor of difficult anatomopathological classification characterized by rapid progression and optimal therapeutic response after combined surgical and radiotherapy treatment, with histo-molecular definition and DNA methylation profile.
Medicina (B Aires)
December 2024
Servicio de Patología, Hospital Interzonal General de Agudos Gral. San Martín, La Plata, Buenos Aires, Argentina.
Superficial angiomyxoma is a benign neoplasm of mesenchymal origin that affects both sexes with a slight predilection for males. It can present in a solitary or multiple form, within the framework of the Carney complex, an autosomal dominant syndrome characterized by the triad: cutaneous and cardiac myxomas, skin pigmentation and endocrine overactivity. They occur more commonly in the head and neck, trunk and lower limbs; the location in the genital region and particularly in the scrotum is very unusual.
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