An Ovarian Teratoma in a Cat

1998 ◽  
Vol 35 (2) ◽  
pp. 141-144 ◽  
Author(s):  
R. J. Basaraba ◽  
S. L. Kraft ◽  
G. A. Andrews ◽  
H. W. Leipold ◽  
D. Small
Keyword(s):  
Germ Cell ◽  
Abdominal Distension ◽  
Uterine Horn ◽  
Cell Tumor ◽  
Ovarian Teratoma ◽  
Intact Female ◽  
Cell Layers ◽  
Abdominal Radiographs ◽  
Well Differentiated ◽  
Mature Ovarian Teratoma

A 5-month-old, intact female, domestic shorthaired cat was presented for evaluation of abdominal distension. Abdominal radiographs revealed a midabdominal mass that contained multiple, irregular, mineralized opacities. The mass was surgically removed, and an ovariohysterectomy performed. The mass was located at the tip of the left uterine horn and was covered partially by haired skin. Histologically, the mass was diagnosed as a mature ovarian teratoma based on the presence of well-differentiated somatic structures derived from three primary embryonal germ-cell layers. Germ-cell tumor classification and feline ovarian teratomas are reviewed.

scholarly journals Mature Ovarian Teratoma: Atypical Imaging

2020 ◽  
Vol 2020 ◽  
pp. 1-3
Author(s):  
S. Wakrim ◽  
M. EL Jdid
Keyword(s):  
Magnetic Resonance Imaging ◽  
Abdominal Pain ◽  
Ovarian Neoplasms ◽  
Abdominal Ultrasound ◽  
Ovarian Teratoma ◽  
Resonance Imaging ◽  
Distended Abdomen ◽  
Cell Layers ◽  
Well Differentiated ◽  
Mature Ovarian Teratoma

The incidence of a mature ovarian teratoma ranged from 20% to 30% of pediatric ovarian tumors (Sabaa et al., 2009), which is composed of well-differentiated tissues that derive from all three germ cell layers (ectoderm, mesoderm, and endoderm); it is one of the most common benign ovarian neoplasms. In this case report, we discuss a 9-year-old female patient who presented with abdominal pain and distended abdomen, for which she had an abdominal ultrasound and magnetic resonance imaging. The histopathological exam, after a laparotomy, showed a mature ovarian teratoma.

scholarly journals Recovery from Choriocarcinoma Syndrome Associated with a Metastatic Extragonadal Germ Cell Tumor Hemorrhage

2016 ◽  
Vol 10 (1) ◽  
pp. 198-203 ◽  
Author(s):  
Koji Komori ◽  
Daisuke  Takahari ◽  
Kenya Kimura ◽  
Takashi Kinoshita ◽  
Seiji Ito ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Emergency Operation ◽  
Abdominal Distension ◽  
Massive Hemorrhage ◽  
Cell Tumor ◽  
Inferior Mesenteric Vein ◽  
Extragonadal Germ Cell Tumor ◽  
Life Threatening ◽  
Substantial Risk

A germ cell tumor is the most common form of malignancy in early male life, and can be classified as either seminomatous or nonseminomatous. Choriocarcinoma, comprised of nonseminomatous germ cells, is the most aggressive type of germ cell tumor and characteristically metastasizes to the retroperitoneal lymph nodes and less frequently to the lungs, liver, bone or brain [Shibuya et al., 2009;48: 551–554]. A 56-year-old man was admitted to another hospital complaining of abdominal distension. Symptoms included anorexia, vomiting, and diarrhea. The patient was diagnosed with an extragonadal germ cell tumor and referred to our hospital to receive chemotherapy. The day after admission, the patient’s abdominal distension gradually worsened. An emergency operation revealed venous hemorrhage from the surface of a metastatic extragonadal germ cell tumor between the ligament of Treitz and the inferior mesenteric vein in a horizontal position. Hemostatic treatment was performed with 4-0 proline thread attached to a medicated cotton sponge, rather than using a simple proline thread, and the closure area was manually compressed. Chemotherapy was initiated on postoperative day 10. A metastatic extragonadal germ cell tumor that causes massive hemorrhage and gastrointestinal hemorrhage is very rare, and represents a life-threatening emergency. If the patient’s condition carries a substantial risk of bleeding to death, it may be worthwhile to attempt abdominal operations.

scholarly journals Ovarian Germ Cell Tumor with Myasthenia Gravis: Co-incidence or a Possible link?

2021 ◽  
Vol 6 (4) ◽  
pp. 525-527
Author(s):  
Jhanzeb Iftikhar ◽  
Fareeha Sheikh ◽  
Nazish Khalid ◽  
Muhammad Abubakar Sarwar ◽  
Musa Azhar ◽  
...  
Keyword(s):  
Myasthenia Gravis ◽  
Germ Cell ◽  
Germ Cell Tumor ◽  
Mature Teratoma ◽  
Surgical Excision ◽  
Cell Tumor ◽  
Ovarian Teratoma ◽  
First Case ◽  
Complete Surgical Excision ◽  
Ovarian Teratomas

Teratomas are a common form of germ cell tumor. Teratomas are commonly found in the gonadal organs, such as the ovaries and testes. Treatment of choice for ovarian teratomas is complete surgical excision, which exhibits a good prognosis in benign teratomas; however, chemotherapy treatment is needed for malignant components. Neurological paraneoplastic presentation of gynecological tumors is rare; however, ovarian tumors account for 10% of this presentation. In literature, paraneoplastic limbic encephalitis, anti-N-methyl-D-aspartate receptor encephalitis, and paraneoplastic cerebellar degeneration have been reported in ovarian teratomas and tumors; however, myasthenia gravis has been reported only twice. In both of those cases, manifestation of myasthenia gravis was preceding the diagnosis of ovarian cancer. We describe the first case of a 21-year-old female who presented with new-onset myasthenia gravis after finishing chemotherapy for ovarian teratoma. Another unusual aspect of our case is the rare co-occurrence of gliomatosis peritonei with mature teratoma.

scholarly journals Rare Case of Immature Gastric Teratoma

2014 ◽  
Vol 60 (4) ◽  
pp. 167-170
Author(s):  
M. Ivascu ◽  
M. Bembea ◽  
Claudia Jurca ◽  
Corina Moldovan ◽  
F. Buicu
Keyword(s):  
Rare Case ◽  
Gastric Wall ◽  
Genetic Data ◽  
Abdominal Distension ◽  
Complete Resection ◽  
Pluripotent Cells ◽  
Case Presentation ◽  
Gastric Teratoma ◽  
Cell Layers ◽  
Well Differentiated

Introduction Teratomas are rare and complex tumors with components from more than one of the three germ cell layers. Teratomas range from benign, well-differentiated (mature) cystic lesions to those that are solid and malignant (immature). The incidence of all teratomas is estimated at 1:10,000-1:20,000 newborns. Gastric teratomas represent only 1-2% of all teratomas. Case presentation We report a case of gastric teratoma of a 2 month-old boy who presented with abdominal distension. Diagnosis was established by physical examination, ultrasonography and computed tomography. The tumor measured 13/10/5.5 cm and weighted 390 grams and was surgically excised. Histological examination revealed an immature gastric teratoma. We also reviewed existing clinical and genetic data on gastric teratomas. Association of gastric teratomas with other congenital anomalies or tumors is very rare. Reported cases include: Beckwith-Wiedemann syndrome (involved:11p15, IGF2), Hodgkin disease (developed 3 yrs. post-resection) and focal neuroblastoma. Recent theories include extraembryonic cells; also have been hypothesized to originate from pluripotent cells present in the gastric wall. Conclusion Gastric teratomas are extremely rare tumors. Complete resection induce a good outcome.

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