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Reineking W, Seehusen F, Lehmbecker A, Wohlsein P. Predominance of Granular Cell Tumours among Testicular Tumours of Rabbits (Oryctolagus cuniculi f. dom.). J Comp Pathol 2019; 173:24-29. [PMID: 31812170 DOI: 10.1016/j.jcpa.2019.09.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/17/2019] [Accepted: 09/25/2019] [Indexed: 11/19/2022]
Abstract
Testicular neoplasms are reported rarely in pet and laboratory rabbits (Oryctolagus cuniculi f. dom.), with interstitial cell tumours being the most commonly described testicular neoplasm. In this retrospective study, paraffin wax-embedded testicles with neoplastic changes from 52 rabbits were investigated. Five out of 52 animals exhibited more than one tumour type, resulting in a total of 57 tumours. Granular cell tumours were the most prevalent neoplasm with 36 examples (63%) out of the 57 testicular tumours. Interstitial cell tumours, Sertoli cell tumours and seminomas occurred less frequently. Granular cell tumours of the testis are rare in rabbits. Histological similarities between granular cell and interstitial cell (Leydig cell) tumours in haematoxylin and eosin-stained tissue sections may lead to misdiagnoses. The periodic acid-Schiff reaction or immunohistochemistry for periaxin and S100 protein, as well as ultrastructural analysis, are useful methods to confirm the diagnosis.
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Affiliation(s)
- W Reineking
- Department of Pathology, University of Veterinary Medicine, Hannover, Germany
| | - F Seehusen
- Department of Pathology, University of Veterinary Medicine, Hannover, Germany
| | - A Lehmbecker
- Department of Pathology, University of Veterinary Medicine, Hannover, Germany
| | - P Wohlsein
- Department of Pathology, University of Veterinary Medicine, Hannover, Germany.
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Dimov D, Dikov T, Dimitrova L, Filipov C, Raychev I. First report of canine mammary gland granular cell tumour: case description and review of the literature. BULGARIAN JOURNAL OF VETERINARY MEDICINE 2019. [DOI: 10.15547/bjvm.2111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The case of a 5-year-old intact female Pitbull Terrier with a granular cell tumour (GCT) of the mammary gland is presented. The dog was admitted for surgical removal of a non-painful lump assumed to be a fibroadenoma. Histological and immunohistochemical findings leading to the diagnosis consisted of polygonal tumour cells with well-defined cell borders and granular cytoplasm, staining positively with neuron-specific enolase (NSE) and protein S100 and negatively for cytokeratin AE1-AE3. Some important points in the diagnostic and therapeutic approach to this uncommon neoplasm are discussed. To our best knowledge this is the first case of such tumour in the mammary gland described in the veterinary literature.
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Granular Cell Tumor in a Horse: Multifocal Pulmonary Distribution and Evidence of Autophagy in Tumorigenesis. J Equine Vet Sci 2019; 79:23-29. [PMID: 31405495 DOI: 10.1016/j.jevs.2019.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/27/2019] [Accepted: 05/09/2019] [Indexed: 11/20/2022]
Abstract
Granular cell tumor (GCT) is a soft tissue neoplasm characterized by abundant intracellular eosinophilic granules. The majority of GCTs are benign, although some display malignant behavior. Furthermore, GCTs may mimic other neoplasms. The clinical course and biology of GCTs are poorly understood. Regarding the histogenesis of GCT, a Schwann cell origin is currently favored in light of immunohistochemical and ultrastructural analyses. However, based on literature data, some of the primitive GCTs show non-neural origin; therefore, the histogenesis of this tumor has remained enigmatic. Granular cell tumors can arise in almost any location of the body and typically present as solitary lesions. This study illustrates equine primary GCT with multifocal pulmonary distribution. The presence of GCT in the respiratory tract becomes a diagnostic challenge on initial presentation. The morphologic details of this case are presented. Immunohistochemical evaluation confirmed the neuronal origin of equine GCT and the relation of intracytoplasmic granules formation to an autophagy phenomenon. Most of the discussion is related to GCT nature to help characterize molecular aspects associated with the biological behavior of this tumor and its heterogeneity.
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Abstract
Respiratory and cardiac diseases are common in older horses. Advancing age is a specific risk factor for cardiac murmurs and these are more likely in males and small horses. Airway inflammation is the most common respiratory diagnosis. Recurrent airway obstruction can lead to irreversible structural change and bronchiectasis; with chronic hypoxia, right heart dysfunction and failure can develop. Valvular heart disease most often affects the aortic and/or the mitral valve. Management of comorbidity is an essential element of the therapeutic approach to cardiac and respiratory disease in older equids.
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Hernández V, Carrera E, Méndez A, Morales JC, Morales E, Sánchez FD. Histopathologic, immunohistochemical and ultrastructural features of a granular cell tumour in an Australian parakeet (Melopsittacus undulatus). Avian Pathol 2012; 41:437-40. [DOI: 10.1080/03079457.2012.711463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Quist CF, Latimer KS, Goldade SL, Rivera A, Dein FJ. Granular cell tumour in an endangered Puerto Rican Amazon parrot (Amazon vittata ). Avian Pathol 2010; 28:345-8. [DOI: 10.1080/03079459994597] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Rossi G, Tarantino C, Taccini E, Renzoni G, Magi GE, Bottero E. Granular Cell Tumour Affecting the Left Vocal Cord in a Dog. J Comp Pathol 2007; 136:74-8. [PMID: 17258228 DOI: 10.1016/j.jcpa.2006.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2006] [Accepted: 10/05/2006] [Indexed: 10/23/2022]
Abstract
Granular cell tumours (GCTs) have been described in human vocal cords, but not in those of the dog. A single polyp in the left vocal cord, associated with laryngeal oedema and monolateral hyperplasia of the tonsil, was observed endoscopically in a 6-year-old male dog. Cytologically, the mass was characterized by well-defined polygonal cells, with granular cytoplasm and an eccentric nucleus. Histologically, the mass showed sheets of globoid to polygonal cells, filled with numerous diastase-resistant, periodic acid-Schiff-positive granules, and scanty stroma. Ultrastructurally, the granules were represented by heterogeneous lysosomes of variable size, suggesting a diagnosis of GCT. As reported in man, hyperplasia of the laryngeal and tonsillar epithelium and the presence of foci of pearl-like epithelial cells, mimicking invasive squamous cell carcinoma, were observed. Immunohistochemical examination revealed labelling of neoplastic cells for S-100 protein, CD68, collagen IV, and, focally, for glial fibrillary acidic protein, neuron-specific enolase and vimentin. These findings suggested a Schwann cell origin of the GCT.
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Affiliation(s)
- G Rossi
- Department of Animal Science, University of Camerino, Via Circonvallazione 93/95, 62024 Matelica, Italy.
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Liu CH, Liu CI, Liang SL, Cheng CH, Huang SC, Lee CC, Hsu WC, Lin YC. Intracranial Granular Cell Tumor in a Dog. J Vet Med Sci 2004; 66:77-9. [PMID: 14960817 DOI: 10.1292/jvms.66.77] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 12-year-old female miniature poodle showed a 3-month history of neurological signs. Magnetic resonance imaging disclosed a high intensity tumor mass in the right cerebral hemisphere with compression of the lateral ventricle. At necropsy, a 2 x 3 cm white, friable mass was found in the right ventral pyriform lobe. Microscopically, the tumor cells were large, polygonal to round cells supported by a sparse fibrovascular stroma. The tumor cells typically possessed finely granular, pale eosinophilic cytoplasm with strongly positive periodic acid-Schiff (PAS) reaction. The tumor cells were immunopositive for vimentin, NSE and S-100. Ultrastructurally, the tumor cells showed large amounts of granules in the cytoplasm, and absence of basement membrane. Based on the above-mentioned findings, the intracranial granular cell tumor was diagnosed.
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Affiliation(s)
- Chen-Hsuan Liu
- Department of Veterinary Medicine, National Taiwan University, Taipei 106, Taiwan, ROC
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Pusterla N, Norris AJ, Stacy BA, Smith P, Fielding CL, Moore PF, Watson JL. Granular cell tumours in the lungs of three horses. Vet Rec 2003; 153:530-2. [PMID: 14620554 DOI: 10.1136/vr.153.17.530] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- N Pusterla
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis 95616, USA
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Abstract
Lower airway problems of the adult horse are commonly encountered by the practitioner. Particularly susceptible populations include horses transported for any significant distance and young horses grouped together for training and/or competition. This article presents some of the commonly encountered problems of this patient population, including bacterial pneumonia/pleuropneumonia and influenza, and some uncommon ones, including pulmonary edema, pneumothorax/hemothorax, and acuterespiratory distress syndrome. Information is presented that should allow the practitioner to diagnose these problems accurately and initiate rational treatment plans.
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Affiliation(s)
- Pamela A Wilkins
- Large Animal Internal Medicine, School of Veterinary Medicine, University of Pennsylvania, New Bolton Center, 382 West Street Road, Kennett Square, PA 19348, USA.
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Ohnesorge B, Gehlen H, Wohlsein P. Transendoscopic electrosurgery of an equine pulmonary granular cell tumor. Vet Surg 2002; 31:375-8. [PMID: 12094352 DOI: 10.1053/jvet.2002.33592] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Description of transendoscopic electrosurgical treatment of a pulmonary granular cell tumor in a horse. STUDY DESIGN Case report. ANIMALS A 12-year-old Standardbred mare. METHODS After endoscopic examination and transendoscopic biopsy, a granular cell tumor nodule was removed transendoscopically from the right principal bronchus of the sedated horse (0.02 mg/kg detomide intravenous) with a monopolar electrosurgical wire snare. Two days later, the surgical area was irradiated transendoscopically using a Nd-YAG laser. RESULTS After surgery, the horse had no further signs of respiratory disease. Clinical and endoscopic examination and radiography performed 4 times during the following 2 years showed no evidence of recurrence. CONCLUSIONS Transendoscopic electrosurgical removal of nodular masses located intraluminally in the principal bronchi is possible on the sedated standing horse. CLINICAL RELEVANCE Granular tumors are rare lung neoplasms that lead to unspecific signs of a low airway disease. Diagnosis requires endoscopic examination of the large bronchi. Early intraluminal stages can be treated transendoscopically.
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Affiliation(s)
- Bernhard Ohnesorge
- Clinic for Horses and Department of Pathology, School of Veterinary Medicine, Hannover, Germany
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Rallis TS, Tontis DK, Soubasis NH, Patsiaura KK, Papazoglou LG, Adamama-Moraitou KK. Immunohistochemical study of a granular cell tumor on the tongue of a dog. Vet Clin Pathol 2002; 30:62-66. [PMID: 12024318 DOI: 10.1111/j.1939-165x.2001.tb00260.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A granular cell tumor (GCT; myoblastoma) was diagnosed on the tongue of a 12-year-old English Pointer with clinical signs of mild oral dysphagia. The diagnosis was confirmed by histopathologic examination and immunohistochemistry. The tumor was positive for S-100 protein, but also was positive for desmin, and was only weakly positive for PAS, which is unusual for GCTs. An epithelioid type of leiomyoma (leiomyoblastoma) was considered less likely on the basis of negative staining for smooth muscle actin. Treatment consisted of surgical resection of the tumor. The animal was in excellent clinical condition 1 year after surgery. Although GCT of the tongue has been reported previously in the dog, determining the cell of origin is still problematic. Immunohistochemistry is helpful for histogenetic classification and necessary for differentiation from leiomyoblastoma.
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Affiliation(s)
- T. S. Rallis
- Companion Animal Clinic, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 11 St. Voutyra Str, 546 27, Thessaloniki, Greece.
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Heinola T, Heikkilä M, Ruohoniemi M, Sukura A. Hypertrophic pulmonary osteopathy associated with granular cell tumour in a mare. Vet Rec 2001; 149:307-8. [PMID: 11570794 DOI: 10.1136/vr.149.10.307] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- T Heinola
- Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, University of Helsinki, Finland
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Tarrant J, Stokol T, Bartol J, Wakshlag J, Blue J. Diagnosis of malignant melanoma in a horse from cytology of body cavity fluid and blood. Equine Vet J 2001; 33:531-4. [PMID: 11558753 DOI: 10.2746/042516401776254899] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- J Tarrant
- Department of Population Medicine and Diagnostic Sciences, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853, USA
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Kagawa Y, Hirayama K, Tagami M, Tsunoda N, Yoshino T, Matsui T, Furuoka H, Taniyama H. Immunohistochemical analysis of equine pulmonary granular cell tumours. J Comp Pathol 2001; 124:122-7. [PMID: 11222008 DOI: 10.1053/jcpa.2000.0439] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Histopathological and immunohistochemical examinations were made on four female horses aged 9-12 years with pulmonary granular cell tumours (GCTs). The tumours, which were multiple, of varying size, firm and off-white in colour, surrounded the bronchi and bronchioles. Metastatic lesions were not detected. The tumour cells had abundant eosinophilic cytoplasm filled with prominent coarse eosinophilic granules. Immunohistochemically, these tumour cells reacted uniformly with vimentin and S100 antibodies. Most were immunolabelled by antibodies against glial fibrillary acidic protein (GFAP), myelin basic protein (MBP) and protein gene product 9.5 (PGP9.5), and a few cells were positive with Leu7 antibody. However, the tumour cells did not react with antibodies against neurofilament protein (NF), cytokeratin (CK), chromogranin, alpha1 antichymotrypsin (AACT), myoglobin, desmin, alpha-actin or alpha-smooth muscle actin (alpha-SMA). These immunohistochemical properties of tumour cells support the hypothesis that equine pulmonary GCTs are derived from Schwann cells of the peripheral nervous system in peribronchial and peribronchiolar tissues. GFAP, MBP, Leu7 and PGP9.5 antibodies should help to distinguish equine granular cell tumours from other tumours.
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Affiliation(s)
- Y Kagawa
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Bunkyodai-Midorimachi 582-1, Ebetsu, Hokkaido 069-8501, Japan
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Abstract
Tumors of the equine respiratory tract occur infrequently. An accurate diagnosis of neoplasia of the respiratory tract is critical because the prognosis is usually grave. The clinical signs and diagnostic procedures are discussed for tumors of the nasal and paranasal sinuses, nasopharynx/larynx, guttural pouch and thorax including lung, pleura, and thymus.
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Affiliation(s)
- W K Scarratt
- Department of Large Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, USA
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Clercx C, Desmecht D, Michiels L, McEntee K, Hardy N, Henroteaux M. Laryngeal rhabdomyoma in a golden retriever. Vet Rec 1998; 143:196-8. [PMID: 9762761 DOI: 10.1136/vr.143.7.196] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
A three-year-old male golden retriever had had progressive dyspnoea, exercise intolerance, stridor, and a modified bark for five months. A mass 2 cm in diameter was present dorsal to the right side of the larynx. Histological examination revealed cross-striations in some elongated cells, consistent with a diagnosis of rhabdomyoma, a diagnosis which was confirmed by positive immunohistochemical staining for myoglobin and desmin. The mass could not be removed without total laryngectomy and a permanent tracheostomy and the dog was euthanased.
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Affiliation(s)
- C Clercx
- Faculty of Veterinary Medicine, University of Liège, Belgium
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