CT characterisation of the feline os penis

2019 ◽  
Vol 22 (8) ◽  
pp. 673-677
Author(s):  
Mauricio Tobón Restrepo ◽  
Raúl Altuzarra ◽  
Yvonne Espada ◽  
Elisabet Domínguez ◽  
Claudia Mallol ◽  
...  
Keyword(s):  
Body Weight ◽  
Soft Tissue ◽  
External Genitalia ◽  
Inclusion Criteria ◽  
Post Contrast ◽  
Penis Size ◽  
Length Width ◽  
Os Penis ◽  
Attenuation Values ◽  
Ct Studies

Objectives The aim of this study was to investigate the frequency of identification and to describe the CT features of the os penis in cats without genitourinary disorders. Methods CT studies from cats that underwent an abdominal or pelvic examination between October 2013 and May 2019 were reviewed retrospectively. Cats with no signs of urinary disease and with the external genitalia included in the scan were recruited. Length, width, height and pre- and post-contrast attenuation values of the os penis in soft tissue and bone algorithms were measured independently by two observers. Results Twenty-three cats met the inclusion criteria. A cylindrical bone-attenuating structure inside the glans penis compatible with the os penis was visible in 20/23 (87%) cats. Mean length, width and height values were 3.48 mm × 1.41 mm × 1.37 mm in the soft tissue algorithm, and 3.26 mm × 1.15 mm × 1.06 mm in bone algorithm. The size of the os penis was not significantly different in neutered vs intact cats, but it was significantly larger in soft tissue vs bone algorithm. Age and body weight did not influence os penis size. Pre-contrast mean ± SD attenuation was 216.7 ± 69.5 Hounsfield units (HU) for soft tissue and 320.1 ± 135.9 HU for bone algorithms. Post-contrast attenuation was 289.1 ± 68.8 HU for soft tissue and 383.4 ± 130.9 HU for bone algorithms. A significant correlation between the attenuation in bone algorithm with body weight was noted, where the os penis was less attenuating with increased body weight (pre-contrast: r = –0.479; P = 0.038). Conclusions and relevance The feline os penis is commonly seen on CT images, being more frequently detected than on radiographs. Its presence should not be mistaken for uroliths in the penile urethra.

Comparison of clinicopathological features and outcomes in patients with primary leiomyosarcoma of bone and soft tissue.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e23526-e23526
Author(s):  
Alan T. Blank ◽  
Charles Gusho ◽  
Steven Gitelis
Keyword(s):  
Soft Tissue ◽  
Cox Regression ◽  
Prognostic Significance ◽  
Multivariable Analysis ◽  
Distant Metastases ◽  
High Grade ◽  
Seer Database ◽  
Inclusion Criteria ◽  
Rare Malignancy ◽  
Primary Leiomyosarcoma

e23526 Background: Leiomyosarcoma is a rare malignancy that may occur in bone. This investigation described the characteristics and outcomes of primary leiomyosarcoma of bone (PLB) compared to soft tissue leiomyosarcoma (SLMS). Methods: This study was a retrospective review using the Surveillance, Epidemiology, and End Results (SEER) database from 1975 to 2016. Continuous and categorial variables were described, and Cox regression were used to identify factors of prognostic significance. Results: Seven thousand five-hundred two patients met inclusion criteria. Seventy-four (1%) were PLB and 7428 (99%) were SLMS. On multivariable analysis for high-grade SLMS radiation (neoadjuvant: HR, 0.56; 95% CI, 0.4-0.8; p = 0.003, and adjuvant: HR, 0.75; 95% CI, 0.6-0.9; p = 0.008) and surgery (procedure specific) improved DSS, while age (HR, 1.013; 95% CI, 1.0-1.1; p < 0.001), tumor size greater than or equal to 5 cm (HR, 3.16; 95% CI, 2.3-4.2; p < 0.001), abdomen/pelvis/trunk/thorax tumors (HR, 1.31; 95% CI, 1.1-1.6; p = 0.006), and distant metastases at presentation (HR, 2.6; 95% CI, 2.1-3.3; p < 0.001) negatively influenced DSS. Conclusions: Radiation and surgery positively influence survival in high-grade SLMS while chemotherapy appears to have no benefit. Surgery alone appears to lower the mortality risk in PLB.

Imaging of rare appendicular non-acral soft-tissue chondromas in adults with histopathologic correlation

2017 ◽  
Vol 59 (6) ◽  
pp. 700-708
Author(s):  
Mohamed Ragab Nouh ◽  
Hanan Abd El-Aziz Amr ◽  
Rola H Ali
Keyword(s):  
Soft Tissue ◽  
Signal Intensity ◽  
Tissue Reaction ◽  
High Signal ◽  
Diagnostic Challenge ◽  
Post Contrast ◽  
Intensity Matrix ◽  
Tissue Edema ◽  
Magnetic Resonance Imaging Mri

Background Soft-tissue chondroma (STC) is a rare benign soft tissue tumor that arises primarily in acral extra-skeletal locations. Occasionally, STCs may arise in more proximal non-acral locations, accompanied by non-classic features that label them as indeterminate lesions and pose diagnostic challenge for both radiologists and pathologists alike. Purpose To explicate the potential of diagnostic imaging in the identification and characterization of appendicular non-acral STCs with emphasis on their morphologic magnetic resonance imaging (MRI) enhancement. Material and Methods Our clinical database records were searched for patients with histologically proven primary soft-tissue chondroid lesions over a five-year period. Two musculoskeletal (MSK) trained radiologists evaluated the imaging studies and an MSK pathologist revised the pathological findings. Results The study included six cases of appendicular non-acral STCs (mean age = 40.5 years). The mean size of the tumors was 5.6 cm, with four localized to the knee region, one in the thigh, and one in the sternoclavicular region. All cases showed high signal intensity matrix with low-signal intensity septa on T2-weighted MRI and post-contrast marginal/septal enhancement. The lesions were lobulated and lacked host tissue reaction except for one showing subjacent mild soft-tissue edema. Histologically, the cases lacked overt features of malignancy although one was originally misdiagnosed as chondrosarcoma. Conclusion Non-acral STCs are benign cartilaginous tumors that may pose a diagnostic challenge, both radiologically and pathologically. Collaborative imaging and pathologic workup is needed for better characterization of non-aggression of these lesions, and to avoid diagnostic pitfalls and unnecessary radical resections.

scholarly journals The diagnostic value of intravenous contrast computed tomography in addition to plain computed tomography in dogs with head trauma

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Yasamin Vali ◽  
Ingrid Gielen ◽  
Sarang Soroori ◽  
Eberhard Ludewig
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Head Trauma ◽  
Cerebral Edema ◽  
Diagnostic Value ◽  
Intravenous Contrast ◽  
Post Contrast ◽  
Traumatic Injuries ◽  
Severity Grading ◽  
History Of

Abstract Background The aim of this study is to evaluate additional findings which can be detected by post-contrast computed tomography (CCT) in relation to plain CT (PCT) findings in patients presented with head trauma. Medical records of canine patients with the history of head trauma from three institutions were reviewed. PCT- and CCT-anonymized images were evaluated by a veterinary radiologist separately. From the categorized findings the following conclusions were drawn as: abnormalities were identified on (A) PCT but missed on CCT, (B) CCT but missed on PCT, (C) both PCT and CCT. Results Thirty-two patients were included. The results showed that findings identified on CCT or PCT (category A and B) but missed on the other series were limited to mild soft tissue and sinus changes. Overall, 61 different fracture areas, 6 injuries of the temporomandibular joint (TMJ), 4 orbital injuries, 14 nasal cavities with soft tissue density filling, 13 areas of emphysema, 4 symphysis separations, 12 intracranial hemorrhages, 6 cerebral edema, 5 cerebral midline shifts, 3 intracranial aeroceles, 3 brain herniations and 6 intraparenchymal foreign bodies (defined as an abnormal structure located within the brain: e.g. bony fragments, bullet, teeth,..) were identified on both PCT and CCT separately (category C). Severity grading was different in 50% (3/6) of the reported cerebral edema using PCT and CCT images. Conclusion The results showed that PCT is valuable to identify the presence of intracranial traumatic injuries and CCT is not always essential to evaluate vital traumatic changes.

scholarly journals Mesenchymal Chondrosarcoma: A Rare Aggressive Variant of Chondrosarcoma

2020 ◽  
Vol 3 (2) ◽  
pp. 388-391
Author(s):  
Adarsh Kumar Jhunjhunwala ◽  
Arnab Ghosh ◽  
Manish Kiran Shrestha ◽  
Dilasma Ghartimagar ◽  
Sushma Thapa ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Femoral Head ◽  
Head And Neck ◽  
Left Thigh ◽  
Mesenchymal Chondrosarcoma ◽  
Post Contrast ◽  
Sclerotic Lesion ◽  
Anterior Aspect ◽  
Intensity Lesion ◽  
Cortical Irregularity

A 15-year-old boy reported a 2-month history of severe left thigh pain Physical examination revealed left thigh swelling measuring 6x5 cm. X-ray of the region showed mixed lytic and sclerotic lesion involving the femoral head and neck. A Computed Tomography scan showed mixed lytic and sclerotic lesion involving the femoral head and neck with cortical irregularity and mild periosteal reaction with associated soft tissue in the anterior aspect.  Magnetic resonance imaging demonstrated heterogeneous signal intensity lesion with areas of sclerosis involving the femoral head and neck. The large associated soft tissue in the anterior aspect appears predominantly hyperintense on T2W images. On post-contrast axial and sagittal images, heterogeneous enhancement with areas of necrosis involving soft tissue was seen. A presumptive radiological differential diagnosis of Ewing Sarcoma and Osteosarcoma was made. However, on histopathology, it was a case of mesenchymal chondrosarcoma.

scholarly journals Clinicopathological Features, Risk Factors and Predispositions, and Response to Treatment of Eosinophilic Oral Disease in 24 Dogs (2000-2016)

2019 ◽  
Vol 36 (1) ◽  
pp. 25-31
Author(s):  
Danielle Mendelsohn ◽  
John R. Lewis ◽  
Kristin Iglesias Scott ◽  
Dorothy C. Brown ◽  
Alexander M. Reiter
Keyword(s):  
Risk Factors ◽  
Body Weight ◽  
Clinicopathological Features ◽  
Response To Therapy ◽  
Oral Disease ◽  
Response To Treatment ◽  
Inclusion Criteria ◽  
Lesion Location ◽  
Referral Practice

The objectives of this study were to retrospectively describe clinicopathological features of eosinophilic oral disease in dogs, to identify possible risk factors or predispositions to the condition, and to report overall treatment response. Canine medical records from a veterinary teaching hospital and private referral practice over a 17-year period were reviewed for a diagnosis of eosinophilic oral disease. Twenty-four dogs with 26 lesions met the inclusion criteria. Patient mean age and body weight were 6.8 (3.8) years and 13.4 kg, respectively. Fifteen breeds were represented including Cavalier King Charles spaniel (16.7%), Labrador retriever (12.5%), and West Highland white terrier (12.5%). Eosinophilic lesions were found in the palate (65.4%), tongue (26.9%), and other oral locations (7.7%). Median follow-up time was 5 months. Analysis revealed statistically significant associations between lesion location and body weight (palatal and tongue lesions were more likely in smaller dogs, whereas lesions in the other category [lip or mucosa] were more likely in larger dogs). There was a correlation in lesion location and resolution (all dogs with palatal lesions became asymptomatic at their last recheck), and resolution and the use of antibiotics plus prednisone (greater likelihood of resolution without the use of this combination). Seventy percent of asymptomatic dogs resolved without medication or with allergen therapy alone, suggesting that asymptomatic dogs may respond well to conservative management. No associations were found between lesion location and breed, signalment and response to therapy, lesion resolution and the use of glucocorticoids, or significance of peripheral eosinophilia.

scholarly journals Pattern of Metabolic Syndrome in Clinical Practice

1970 ◽  
Vol 10 (2) ◽  
pp. 48-51
Author(s):  
Quazi Tarikul Islam ◽  
Md Azizul Haque ◽  
ASM Shawkat Ali ◽  
ARM Saifuddin Ekram ◽  
Sultana Monira Hussain ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Metabolic Syndrome ◽  
Body Weight ◽  
Clinical Practice ◽  
Waist Circumference ◽  
Prospective Study ◽  
Systolic Blood Pressure ◽  
Total Cholesterol ◽  
Age Group ◽  
Inclusion Criteria

1068 randomly sampled adult Bangladeshi people were studied during a period of six months from October 2004 to March 2005. It was a randomized, prospective study. Cases that fulfilled two criteria of metabolic syndrome (MetS) were evaluated to see pattern and types of MetS. Out of 1068 patients, 110 (10.3%) fulfilled the inclusion criteria. 101 (9.4%) cases were labeled as metabolic syndrome according to NCEP ATP III criteria, 09 cases had only two criteria. 40 cases were male & 70 cases were female (M:F= 1:1.8). Mean age of patients with was 44.88, ranging from the age of 20-68 years. Majority (55%) of the patients were in the age group of 30-49 years. Half of the cases had BMI 30-34.9. Mean body weight of male was 85.9 kg and of female was 78.2 kg. Mean waist circumference of male was 41.7 inches and of female 40 inches. Mean HDL for male was 38.3 mg/dL and for female is 40.2 mg/dL. Mean Triglyceride for male was 172.1 and for female was 169.3 mg/dL. Mean total cholesterol for male was 216.7 and for female was 207.6 mg/dL. Mean systolic blood pressure (SBP) for men is 162 mm Hg & diastolic blood pressure (DBP) 99 mm Hg and for female mean SBP 155 and DBP 96 mm Hg. Metabolic syndrome is more prevalent in the 3rd and 4th decade of life in both sexes. It is almost twice common in female than male. Combination of hypertension, obesity & dyslipidemia comprises nearly 40% of its presentation.    doi: 10.3329/jom.v10i2.2813 J MEDICINE 2009; 10 : 48-51

scholarly journals Allograft Augmentation of Hamstring Anterior Cruciate Ligament Grafts is Associated with Increased Graft Failure

2018 ◽  
Vol 6 (7_suppl4) ◽  
pp. 2325967118S0014
Author(s):  
Crystal Perkins ◽  
Michael T. Busch ◽  
Melissa A. Christino ◽  
S. Clifton Willimon
Keyword(s):  
Soft Tissue ◽  
Acl Reconstruction ◽  
Graft Failure ◽  
Activity Level ◽  
Population Characteristics ◽  
Hamstring Autograft ◽  
Inclusion Criteria ◽  
Graft Rupture ◽  
Graft Diameter

Objectives: ACL reconstruction in adolescents is commonly performed with hamstring autografts. In the adolescent population with very high activity levels, graft rupture is the most feared complication of ACL reconstruction. Young age, higher activity level, allografts, and small graft diameter have been shown to be predictors of graft failure. The applicability of this data to pediatric ACL reconstructions is limited due to heterogeneity of ages, graft constructs, and tunnel techniques. The purpose of this study is to evaluate the association of soft tissue graft constructs and graft rupture following pediatric transphyseal ACL reconstruction. Our hypothesis is that allograft-augmentation of grafts is associated with an increased risk of graft rupture. Methods: A single-institution retrospective review was performed of consecutive patients. Inclusion criteria were age less than 20 years and transphyseal ACL reconstruction with hamstring autograft, with or without allograft augmentation. Graft constructs included 4-strand doubled semitendinosus and gracilis (4-STG), 5-strand tripled semitendinosus and doubled gracilis (5-STG), 6-strand doubled gracilis and semitendinosus plus allograft (6-STGAllo), and 7-strand tripled semitendinosus and doubled gracilis plus allograft (7-STGAllo). Exclusion criteria included multiligament reconstruction and less than 6 months follow-up. The primary outcome was graft rupture. Results: Three hundred fifty-five patients (157 males, 198 females) with an average age of 15.3 years were identified to meet inclusion criteria. Graft constructs included 4-STG (198), 5-STG (91), 6-STGAllo (65), and 7-STGAllo (1). Average graft diameter was 8.3 mm 4-STG, 8.9 mm 5-STG, and 9.2 mm 6-STGAllo. Age and graft sizes were significantly different across groups with older patients (p <0.001) and larger graft sizes (p <0.001) being found in patients with allograft-augmented grafts. Mean duration of follow-up was 26 months (range 6-56 months). There were 51 graft ruptures (14.3%). The failure rate of each construct was 13.6% 4-STG, 11.9% 5-STG, and 19.7% 6-STGAllo. Time to graft failure was 16 months (range 2-40 months), with 49% of failures occurring before 12 months and 24% after 24 months. Twenty-four patients (6.7%) had a contralateral ACL tear during the follow-up period. Table 1 provides population characteristics by graft rupture status. This data suggests that patients who sustain a graft rupture may be slightly younger (p=0.07) and have lower BMI (p=0.07) than those patients without graft rupture. Odds ratios for graft failure by graft construct, controlling for age and graft size were calculated. Patients with 6-STGAllo grafts had an odds ratio of 2.6 (95% CI: 1.02, 6.50) of graft rupture as compared to 4-STG. Conclusion: ACL reconstruction with hamstring autograft combined with soft tissue allograft have a 2.6 times risk of graft rupture as compared to hamstring autograft without augmentation. In situations where the surgeon harvests an inadequately sized 4-strand autograft, we recommend tripling the semitendinosus to produce a larger graft diameter rather than augment with an allograft.

The Treatment of Complex Motorcycle Spoke Injuries in Children

2018 ◽  
Vol 108 (5) ◽  
pp. 409-418
Author(s):  
Jiasharete Jielile ◽  
Pengfei Li ◽  
Wulan Bahetiya ◽  
Aynaz Badelhan ◽  
Bayixiati Qianman ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Achilles Tendon ◽  
Effective Treatment ◽  
Distraction Osteogenesis ◽  
External Fixator ◽  
Soft Tissue Defects ◽  
Third Stage ◽  
Length Width ◽  
Age Range ◽  
Tissue Defects

Motorcycle spoke injuries involving the soft tissue, Achilles tendon, and calcaneal defects are rare in children. Currently, calcaneal defects are very challenging to treat. Multiple methods have been used in clinical practice; however, an effective treatment has yet to be established, especially when Achilles tendon and soft-tissue defects are also present. It is important to address this condition, because the calcaneus plays a key role in standing and gait. Unsatisfactory treatment of calcaneal defects may significantly decrease patients' quality of life (eg, by limiting mobility). In this article, we report the effective treatment of calcaneal defects in four children using distraction osteogenesis with an external fixator framework designed by the authors. From May 2014 to May 2015, four children (age range, 6–11 years) with defects of the Achilles tendon, soft tissue, and calcaneus resulting from a motorcycle accident were treated at our hospital. The Achilles tendon and soft-tissue defects were treated with second-stage reconstruction. In the third-stage surgery, osteotomy of the residual calcaneus was performed. A customized external fixator was used to lengthen the calcaneus at a rate of 1.5 mm/day in the posterior direction and reposition it by 40° in the inferior direction. In all four children, the calcaneus was lengthened by 5 cm. Distraction osteogenesis through external fixation is effective for restoring the length, width, and height of the calcaneus in children.

Antimicrobial therapy of skin and soft tissue infection in children

1993 ◽  
Vol 83 (7) ◽  
pp. 398-405 ◽  
Author(s):  
I Brook
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Infection ◽  
Antimicrobial Therapy ◽  
Anaerobic Bacteria ◽  
External Genitalia ◽  
Tissue Infection ◽  
Soft Tissue Infections ◽  
Prevotella Species ◽  
The Common ◽  
Group D

Skin and soft tissue infection and cutaneous abscesses are common in children. They may be polymicrobial in nature, especially when located proximal to mucous membranes. A general knowledge of the common causative bacterial organisms in these infections enables the physician to empirically institute antimicrobial therapy before culture results are available. This review assesses the number and types of aerobic and anaerobic bacteria that occur in skin and soft tissue infections in children. Staphylococcus aureus and Streptococcus pyogenes were recovered from infections occurring at all body sites, but predominated in infections of the leg, neck, and hand. Group D streptococci, Enterobacteriaceae, Neisseria gonorrhoeae, Bacteroides fragilis, and Prevotella species were isolated mostly from infections of the external genitalia and perirectal areas; pigmented Prevotella and Porphyromonas and Haemophilus influenzae can be isolated from infections of the head and neck. Management of skin and soft tissue infections in children should include surgical and medical therapy.

Stifle arthrodesis using a locking plate system in six dogs

2015 ◽  
Vol 28 (04) ◽  
pp. 288-293 ◽  
Author(s):  
T. Nicetto ◽  
M. Petazzoni
Keyword(s):  
Body Weight ◽  
Medical Records ◽  
Tibial Fracture ◽  
Locking Plate ◽  
Sagittal Plane ◽  
Inclusion Criteria ◽  
Radiographic Outcomes ◽  
Locking Plate System ◽  
Plate System

SummaryObjectives: To describe the use of the Fixin locking plate system for stifle arthrodesis in dogs and to retrospectively report the clinical and radiographic outcomes in six cases.[uni2028]Materials and methods: Medical records of dogs that had arthrodesis with the Fixin locking plate system were reviewed. For each patient, data pertaining to signalment and implant used were recorded. Plate series and thickness, number of screws placed, number of cortices engaged, and screw diameters were also recorded. The outcome was determined from clinical and radiographic followups. Radiographic outcomes assessed included the measurement of the postoperative femoral-tibial angle in the sagittal plane.Results: Six dogs met the inclusion criteria for the study. Mean body weight was 13 kg (range: 3 - 34 kg). Radiographic follow-up (mean: 32 weeks, range: 3 - 52 weeks) was available for all dogs. In one case, an intra-operative complication occurred. In another case, a tibial fracture occurred 20 days after surgery. All arthrodeses healed and no implant complication was detected although all cases had mechanical lameness.Clinical significance: Stifle arthrodesis can be performed successfully using a Fixin locking plate system.

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