scholarly journals Case Report: Metastatic Parosteal Osteosarcoma in a Dog

2021 ◽  
Vol 8 ◽  
Author(s):  
Sarah K. Samuels ◽  
Matthew R. Cook ◽  
Eric Green ◽  
Ryan Jennings ◽  
Roy R. Pool ◽  
...  

This case report describes a rare form of malignant bone tumor in an 8-year-old Labrador retriever. This dog initially presented for evaluation of a right distal humeral mass. Radiographs of the right elbow and thorax were performed, revealing a smooth mineralized mass adjacent to the lateral aspect of the distal humerus and a 5mm pulmonary nodule. Computed tomography (CT) of the humerus and thorax showed a smooth mineralized lesion adjacent to the lateral humeral epicondyle, and a right cranial lung lobe nodule with a thin mineral rim. Surgical biopsies of both lesions were diagnostic for parosteal osteosarcoma (POSA). The dog was then treated with stereotactic body radiation therapy (SBRT) which controlled the dog's discomfort for 14 months until he became progressively painful and subsequently had his right forelimb amputated. This case report is the first to document the CT imaging characteristics of a metastatic appendicular POSA in a dog and the first dog described with POSA treated with SBRT. The dog lived for 623 days after histopathologic diagnosis and 849 days after initial presentation with pulmonary metastatic disease.

2020 ◽  
Vol 48 (10) ◽  
pp. 030006052096648
Author(s):  
Yu Wang ◽  
Jie Liu

Bone disease is an important complication of hyperparathyroidism. We herein report a rare case of severe bone disease caused by primary hyperparathyroidism. A 33-year-old man presented with pain and restricted mobility in his right upper limb and right hip due to a fall 3 days previously. X-ray examination showed a fracture of the proximal and distal humerus. Computed tomography examination showed a supracondylar fracture of the right humerus, a fracture of the right femoral neck, a fracture of the right sciatic branch, and multiple brown tumors. Ultrasonography showed a 3.5- × 1.6-cm hypoechoic mass below the left lobe of the thyroid. The patient was diagnosed with primary hyperparathyroidism based on increased serum calcium and parathormone concentrations, pathological fractures, and multiple brown tumors. He therefore underwent bilateral lower parathyroidectomy. Pathological examination revealed a parathyroid adenoma. The patient recovered well after surgery and was followed up for 6 months with no symptoms of hyperparathyroidism. This case report suggests that clinicians should be aware of the possibility of severe bone disease secondary to primary hyperparathyroidism. Active and early diagnosis and surgical treatment are important in such cases.


2021 ◽  
pp. 875647932199235
Author(s):  
Amber R. Matuzak

Bilateral tubal pregnancy (BTP) is a very rare form of ectopic twin gestation. Many times, they occur after the use of assisted reproductive therapy. Most cases of BTP are diagnosed during laparoscopy. This case report demonstrates a rare preoperative, sonography diagnosis of a spontaneous BTP which occurred after a tubal ligation. The sonogram revealed two corpus luteal cysts, both located on the right ovary, which suggests that the left tubal pregnancy most likely occurred as a result of ovum transmigration. This case demonstrates the important role that sonography plays in the early diagnosis of ectopic pregnancies as well as the importance of thoroughly examining the entire pelvis during a pelvic sonogram.


2010 ◽  
Vol 46 (2) ◽  
pp. 138-142 ◽  
Author(s):  
Marjorie E. Milne ◽  
Christina McCowan ◽  
Ben P. Landon

Spontaneous pneumothorax is rarely reported in the cat. This case report describes the use of computed tomography (CT) to diagnose pulmonary bullae in an adult cat with recurrent spontaneous pneumothorax. A large bulla in the right middle lung lobe and several blebs in other lobes were identified by CT. Partial lobectomy of the right middle and right and left cranial lung lobes was successfully performed to remove the affected portions of lung. Histopathological examination suggested bronchopulmonary dysplasia (BPD) as the underlying cause for development of the pulmonary bulla. This is the first case report in the veterinary literature describing the use of CT to identify pulmonary bullae in the cat with BPD as a possible underlying cause.


Author(s):  
Ferdinand Nyankoue Mebouinz ◽  
Alioune Badara Diouf ◽  
Badara Dembele ◽  
Mohamed Daffe ◽  
Lamine Sarr ◽  
...  

<p>Non-union of the medial condyle of the humerus is a rare development of neglected fractures of the distal humerus. We report a case found in a 19 years old boy who consulted for relative functional impotence of the right elbow, with a functional score rated at 76 points out of 100 according to Broberg and Morrey. The elbow radiograph showed a pseudarthrosis of the medial condyle of the humerus and the computed tomography found in addition a partial filling of the olecranon and coronoid dimples. Also, a therapeutic abstention was retained this pseudarthrosis in view of its providential character.</p>


2019 ◽  
Vol 6 (5) ◽  
pp. 1806
Author(s):  
Akash Agrawal ◽  
Palak Vora

Amyand's hernia is a rare form of an inguinal hernia (less than 1% of inguinal hernias) which occurs when the appendix is a part of hernial sac. Because of anatomical position of the appendix, it is most commonly found in the right sided hernial sac and it can also be accompanied by the caecum and/or right colon. In rare case, Amyand’s hernia can appear on the left side also. Here we report a case of left sided amyand’s hernia with acute perforated appendicitis in a 58 years old male patient at GMERS hospital, Dharpur, Patan, Gujarat, India.


2020 ◽  
Vol 47 (3) ◽  
pp. 251-256 ◽  
Author(s):  
Paula Mairead Sinnott ◽  
Samantha Hodges

Dense bone islands (DBIs) are usually asymptomatic and do not require any treatment. This case report presents a DBI of an unusual presentation, which was an incidental finding on a radiograph of a 15-year-old orthodontic patient. The DBI lesion was 24 mm in size, occupying at least 50% of the alveolar process between the upper right canine and lateral incisor, extending up the lateral aspect of the anterior margin of the right nasal fossa. Generally, DBIs are 2–3 mm in size and more commonly found in the mandible in the molar and premolar region. This article further discusses the impact of DBIs on orthodontic treatment such as difficulty with achieving space closure and adequate root tip or torque. We also examine the potential medical implications of DBIs. This is clinically important, especially if multiple DBIs, or osteomas which have a similar radiographic appearance to DBIs, are found in a patient as they may be associated with adenomatous intestinal polyps, which, if not treated, have a 100% chance of becoming malignant transformation


2020 ◽  
Vol 3 (3) ◽  
pp. 33
Author(s):  
Siska Damayanti Saifuddin ◽  
Farina Pramanik ◽  
Ria Noerianingsih Firman

Objectives: This purpose of this  case report is to explain the imaging characteristics of unilocular ameloblastoma in CBCT 3D radiograph. Case Report: A 32-year-old male patient came to the dentist complaining his painful right lower jaw over the past few days. Clinical examination showed extensive swelling in the posterior region of the right mandible to cause asymmetry at the inferior border of the mandibular corpus. Panoramic radiography showed radiolucent area in periapical mesial root of 46 tooth, extending to the right angular mandibular with a clearly demarcated shape,  and there was a root resorption of 47 tooth. CBCT 3D examination showed the presence of unilocular radiolucent lesion in a regular shape and a clear borderline, extending to the inferior border of the mandible and causing buccal-lingual cortical perforation accompanied with the resorption of adjacent 47 tooth. Conclusion: CBCT is a supporting radiography that may act as a more accurate diagnostic tool for the diagnosis of unique ameloblastoma lesions.


Rare Tumors ◽  
2009 ◽  
Vol 1 (2) ◽  
pp. 153-155
Author(s):  
Ivy N Umanah ◽  
Akpan S Okpongette

We report the case of a 21-year-old Nigerian woman who presented to us with features of intracystic papillary carcinoma, a rare form of breast cancer usually seen in postmenopausal women in their sixth to eighth decades of life. To the best of our knowledge, there has been only one other case report of this lesion occurring in women in their second decade of life. Physical examination showed a well-defined mass, 54 mm in diameter, in the upper proximal quadrant of the right breast close to the areola, histologically composed of monotypic epithelial cells disposed in solid, cystic, and papillary patterns. A diagnosis of intracystic papillary carcinoma was made because of the presence of intracystic arborization of the fibrovascular stroma, a monotonous cell population, the presence of mitoses, and the lack of myoepithelial cells determined by immunohistochemistry using calponin and p63 stains. Estrogen receptor status was positive while progesterone status and HER-2-neu receptor status were negative. The patient has survived for 12 months without any sign of recurrence after the last surgical resection of the tumor.


Mastology ◽  
2020 ◽  
Vol 30 (Suppl 1) ◽  
Author(s):  
Juliana da Costa Souza ◽  
Juliana Ferreira de Lima ◽  
Aline Bortolotto Di Pace ◽  
Sandro Luiz Sayão Prior ◽  
Luiz Henrique Gebrim

Introduction: Granular cell tumor (GCT) is rare, usually benign, with less than a 2% chance of malignancy. It is usually located in the tongue, and affects the breast in only 6% of the reported cases, with incidence of 1:1000 cases of breast carcinoma. Its origin is related to the Schwann cells. It presents itself as a firm, painless, moveable mass, smaller than 3 cm. It can affect men and women in several age groups, and is more frequent among black women, from the 4th to the 6th decades of life. The image mimics malignant lesions. Mammography shows: dense, circumscribed, sometimes spiculated nodules, without associated microcalcifications. The ultrasound showed: solid, hypoechoic, heterogeneous, round, irregular nodule, with irregular halo in some cases. Histologically, there are large, polygonal cells, with eosinophilic, granular cytoplasm displayed in blades or trabeculae, with benign, atypical and malignant variants. Positive immunohistochemical (IHC) for markers such as: S00 protein, vimentin, neuron-specific enolase, CD-57, CF-68, inhibin alpha, SOX-10, calretinin, PGP9.5, Gap43. The treatment is the excision of the lesion with margins, with low risk of recurrence. Objective: To describe a case of GCT in Hospital Pérola Byington in January/2019. Method: Cross-sectional, descriptive case report obtained through a medical chart review. Results: S.R.P, 56-year old female, white patient, assisted in January, 2019, complaining of a nodule in the right breast for three months. She denies comorbidities, is not aware of family history of cancer. G1P1N, menacme from the age of 13 to 53, denies hormone therapies. At the first examination: nodule measuring 2.5x2.5cm, in the right SLQ, retracting the nipple; right axilla (RA) showing palpable lymph node. Mammography shows a nodule in the right breast (RB), with irregular shape, partially defined borders, measuring 3.8 cm, located in SLQ(B4)-. An ultrasound guided nodule core biopsy at 10hMD, measuring 2.24x1.52x1.97, RA without findings. Biopsy suggests GCT (without IHC). The choice was to perform an ultrasound guided mammotome with IHC, confirming the GCT (positive for S-100, CD-68, enolase and vimentin), submitted to sectorectomy for the excision of the residual lesion. Conclusions: GCT is rare, benign, in most cases; however, when clinical, epidemiological and imaging characteristics suggest cancer, it is necessary to make an anatomopathological confirmation with IHC and excision of the lesion.


2018 ◽  
Vol 24 (3) ◽  
pp. 167 ◽  
Author(s):  
Mohannad AbuFaza ◽  
Ibrahim A. Abdelazim

<p>Interstitial pregnancy is a rare variety of ectopic pregnancy, it can have disturbed 8-16 weeks of amenorrhea (later than the distal tubal ectopic pregnancy), due to the dispensability of the myometrium covering the interstitial segment of the fallopian tube, with subsequent massive internal hemorrhage.<br />A 29-years-old female, Gravida 3, Para 2, presented with severe abdominal pain, vomiting, and syncope 3 days after her missing period, and positive pregnancy test. Trans-vaginal ultrasound showed empty uterine cavity, free pelvic fluid with severe cervical motion tenderness. She was diagnosed with ruptured ectopic pregnancy. Ruptured ectopic pregnancy in the proximal segment of right fallopian tube was confirmed with laparotomy.<br />The ruptured pregnancy was managed by right salpingectomy, and hemostatic stitches at the right uterine corn. Her hemoglobin was 8 gr on admission, and she received 3 units of packed RBCs (one intra-operative, and two post-operative). Her post-operative hemoglobin was 10.5 gr, and she was discharged from the hospital on the 3rd post-operative day in good general condition for follow up in the outpatients` department. <br />This case report represents a rare variety of ectopic pregnancy, which is the interstitial pregnancy, because it can rupture few days or weeks after the missed period with subsequent massive internal hemorrhage. <br />Interstitial pregnancy is a rare form of ectopic pregnancy, the obstetricians should be aware of rare forms of ectopic pregnancies, it can have disturbed few days or weeks after the missed period leading to subsequent significant morbidity.</p>


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