MD UMAR - Academia.edu (original) (raw)
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Universidade Federal de Ciências da Saúde de Porto Alegre
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Papers by MD UMAR
American Journal of Surgical Case Reports, 2020
Objective: We report two cases of cavernous hemangioma of the temporal bone and review the releva... more Objective: We report two cases of cavernous hemangioma of the temporal bone and review the relevant literature. Design: Retrospective report of two cases and review of the English literature concerning cavernous hemangiomas of the ear via PubMed. Results: A 46-year-old male was found to have a large external auditory canal vascular mass. Excision of mass with endaural approach was taken and diagnosis was confirmed with histopathology. Also, a 35-yearold female was found to have an internal auditory canal vascular mass. Retrosigmoid craniotomy was performed for resection and diagnosis was confirmed with histopathology. Less than 120 case reports of cavernous hemangiomas of the ear were identified and analyzed. Conclusion: Cavernous hemangiomas of the ear are rare vascular tumors of the head and neck that can cause symptoms requiring histopathological diagnosis and surgical treatment.
Zooplankton abundance and distribution of Pindiga Lake, Gombe State were evaluated. Four sampling... more Zooplankton abundance and distribution of Pindiga Lake, Gombe State were evaluated. Four sampling sites (A, B, C, and D) with distance of 500 meters were selected. Physico-chemical characteristic were measured in situ and zooplanktons sampled fortnightly for three months. Zooplanktons collected were identified using taxonomic keys. Simpson’s and Margalef richness indices were employed for analyses. The results showed a total of 524 individual species of zooplankton in 26 genera among the three zooplankton taxa of Cladocera, Copepoda and Rotifera. The genera abundance of Pindiga Lake arranged in lessening trend as Copepoda > Rotifera > Cladocera, with respective total zooplankton values of 47.3%, 30.0%, and 22.7%. The number of individual zooplanktons and their genera for the respective sites were: A, 150 individuals in 26 genera; B, 127 individual in 22 genera; C, 123 individuals in 22 genera; and D, 124 individuals in 24 genera. The Simpson’s species diversity index for the...
American Journal of Surgical Case Reports, 2020
Objective: We report two cases of cavernous hemangioma of the temporal bone and review the releva... more Objective: We report two cases of cavernous hemangioma of the temporal bone and review the relevant literature. Design: Retrospective report of two cases and review of the English literature concerning cavernous hemangiomas of the ear via PubMed. Results: A 46-year-old male was found to have a large external auditory canal vascular mass. Excision of mass with endaural approach was taken and diagnosis was confirmed with histopathology. Also, a 35-yearold female was found to have an internal auditory canal vascular mass. Retrosigmoid craniotomy was performed for resection and diagnosis was confirmed with histopathology. Less than 120 case reports of cavernous hemangiomas of the ear were identified and analyzed. Conclusion: Cavernous hemangiomas of the ear are rare vascular tumors of the head and neck that can cause symptoms requiring histopathological diagnosis and surgical treatment.
Zooplankton abundance and distribution of Pindiga Lake, Gombe State were evaluated. Four sampling... more Zooplankton abundance and distribution of Pindiga Lake, Gombe State were evaluated. Four sampling sites (A, B, C, and D) with distance of 500 meters were selected. Physico-chemical characteristic were measured in situ and zooplanktons sampled fortnightly for three months. Zooplanktons collected were identified using taxonomic keys. Simpson’s and Margalef richness indices were employed for analyses. The results showed a total of 524 individual species of zooplankton in 26 genera among the three zooplankton taxa of Cladocera, Copepoda and Rotifera. The genera abundance of Pindiga Lake arranged in lessening trend as Copepoda > Rotifera > Cladocera, with respective total zooplankton values of 47.3%, 30.0%, and 22.7%. The number of individual zooplanktons and their genera for the respective sites were: A, 150 individuals in 26 genera; B, 127 individual in 22 genera; C, 123 individuals in 22 genera; and D, 124 individuals in 24 genera. The Simpson’s species diversity index for the...