scholarly journals Myopericytoma of the Neck Originating From the Middle Scalene: A Case Report

2019 ◽  
Vol 99 (7) ◽  
pp. NP72-NP74
Author(s):  
Mark B. Chaskes ◽  
John W. Bishop ◽  
Matthew Bobinski ◽  
D. Gregory Farwell

We report the case of a myopericytoma of the neck. A 23-year-old female noticed a small, nontender mass in her left supraclavicular fossa. The mass grew over a period of 5 months, prompting the patient to seek evaluation. There were no motor or sensory deficits. Imaging suggested a mass originating from the middle scalene muscle. Computed tomography–guided core needle biopsy demonstrated a spindle cell neoplasm with smooth muscle differentiation. Complete surgical excision was performed. Histopathological and immunohistochemical evaluation of the tissue sample suggested myopericytoma. Myopericytoma is an extremely rare tumor of the head and neck. To our knowledge, this is the first reported case of a myopericytoma originating from a scalene muscle.

2017 ◽  
Vol 96 (10-11) ◽  
pp. E5-E7 ◽  
Author(s):  
Mark B. Chaskes ◽  
John W. Bishop ◽  
Matthew Bobinski ◽  
D. Gregory Farwell

We report a case of myopericytoma of the neck. A 23-year-old woman noticed a small, nontender mass in her left supraclavicular fossa. The mass had grown over a period of 5 months, prompting her to seek evaluation. On examination, no motor or sensory deficits were present. Imaging suggested that a mass had originated in the middle scalene muscle. Computed-tomography–guided core needle biopsy demonstrated a spindle-cell neoplasm with smooth-muscle differentiation. Complete surgical excision was performed. Histopathologic and immunohistochemical evaluations of the tissue sample suggested a myopericytoma. Myopericytoma is an extremely rare tumor of the head and neck. To the best of our knowledge, this is the first reported case of a myopericytoma originating in a scalene muscle.


Author(s):  
Nithya J. ◽  
Banumathy M. ◽  
Radha A.

Solitary nerve sheath tumor such as Benign schwannomas arising in the pelvic retro peritoneum is infrequently reported. Retroperitoneal location accounts for 0.3-3.2% of primary schwannomas. We report a case of benign retroperitoneal pelvic schwannoma in pregnancy that was incidentally diagnosed when it presented with Preterm premature rupture of membranes and mechanical obstruction for labour. She underwent caesarean section and delivered a healthy baby. She was evaluated in the postoperative period by computerized tomography (CT) imaging studies and CT guided fine needle aspiration cytology (FNAC) was not diagnostic. Complete surgical excision of the tumor was achieved in the postpartum period. The adjacent vascular and urinary channels sustained no injuries and she had no neurologic deficit. Histology revealed spindle cell neoplasm composed of interlacing fascicles and sheets of spindle cell with focal areas of nuclear palisading and thick walled blood vessels. Immunohistochemistry was positive for S 100 suggesting schwannoma. Retroperitoneal location of schwannomas is rare and surgery is curative. Prognosis is good, since recurrence is rare. 


2012 ◽  
Vol 113 (3) ◽  
pp. 246-250 ◽  
Author(s):  
Stavros Sfoungaristos ◽  
M. Papatheodorou ◽  
A. Kavouras ◽  
P. Perimenis

Solitary fibrous tumor is an unusual spindle cell neoplasm that usually occurs in the pleura but has also been described in other sites. Renal presentation is rare and only 38 cases of SFT of the kidney have been described until now. Up to 90% of the tumors have benign characteristics. Local retroperitoneal recurrence is extremely rare. We report a case of a large malignant solitary fibrous tumor recurrence after the surgical excision of the primary tumor. Histological examination of the specimen confirmed the diagnosis by revealing highly positive reaction of the neoplasmatic cells for vimentin, CD34, bcl-2 and moderately positive for actin. The rate of Ki67 lied between 2–7%. No adjuvant therapy was given to the patient and he is disease-free with no imaging findings of recurrence or metastasis 9 months after the re-operation.


2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Kritika Krishnamurthy ◽  
John Alexis ◽  
Pukhraz Basra ◽  
Ana Maria Medina

Primary benign neurogenic neoplasms of the pleura are exceedingly rare. Neurofibromas rarely involve the pleura. A review of the literarture reveals only a single reported case of isolated pleural neurofibroma. Herein the authors describe another case of isolated primary pleural neurofibroma. A 39-year-old nonsmoker woman presented to the emergency room with complaints of progressively worsening chest pain of one month duration. A computed tomography of the chest revealed a crescent shaped, pleural based mass suspicious for a neurogenic tumor such as an intercostal schwannoma. A PET-CT skull base to midthigh failed to reveal any other masses or abnormalities. A surgical excision of the mass was performed due to the patient’s intractable pain. The resected specimen consisted of an ovoid fragment of soft tissue with pale yellow, smooth and glistening cut surface. Microscopic examination revealed the tumor to be composed of spindle cells with wavy nuclei arranged haphazardly in loose collagenous and pale myxoid stroma with rare interspersed mast cells. The spindle cells were diffusely positive for S100 protein and SOX-10, and focally positive for neurofilament. In the absence of any other masses in the patient and no pertinent history, a diagnosis of primary pleural neurofibroma was made. This case emphasizes the need to consider neurofibroma in any spindle cell neoplasm of the pleura irrespective of age or singularity.


2010 ◽  
Vol 120 (S3) ◽  
pp. S119-S119
Author(s):  
Joshua M Levy ◽  
Christian P Hasney ◽  
Paul L Friedlander ◽  
Michael S Ellis ◽  
Mary A Fazekas-May

2015 ◽  
Vol 35 (7) ◽  
pp. 664-670 ◽  
Author(s):  
Ezequiel D. Santos ◽  
José R. Silva Filho ◽  
Tanise P. Machado ◽  
Stefano L. Dau ◽  
Rubens Rodriguez ◽  
...  

Abstract A 4-year-old female captive-bred snake of the genus Bothrops showed swelling on the left side of the oral cavity, suggesting the development of neoplasia. The mass was removed surgically and sent for pathological examination. Two months later a new increase in volume in the same site was observed, suggesting recurrence. The lesion was completely removed and sent for pathological analysis. Histologically, the two-samples consisted of a mass with highly-cell density composed of spindle-shaped anaplastic cells arranged in interwoven bundles, distributed throughout the tissue extension and, occasionally, polygonal cells arranged in irregular fascicles. The Masson trichrome staining showed modest amount of collagen supporting the neoplastic cells. PAS-positive content was not observed in the cytoplasm of neoplastic cells. Histological and histochemical findings indicated that it was a spindle cell neoplasm, but the classification was not possible. Immunohistochemistry was requested and performed using the streptavidin-biotin-peroxidase method. The markers used were anti-vimentin, anti-PCNA, anti-EMA, anti-melan A and anti-melanosome, anti-desmin, anti-actin, anti-CD68 and anti- S100protein. The neoplastic cells were immunoreactive for vimentin and PCNA and negative for the other antibodies. The morphology characterization, histochemical and immunohistochemical analysis of neoplastic cells allowed the definitive diagnosis of oral fibrosarcoma.


Author(s):  
BF. Brasileiro ◽  
PR. Martins-Filho ◽  
MR. Piva ◽  
LC. da Silva ◽  
CF. Nonaka ◽  
...  

2009 ◽  
Vol 76 (2) ◽  
pp. 112-114 ◽  
Author(s):  
M. Marzi ◽  
M. D'Alpaos ◽  
P. Piras ◽  
A. Paiusco ◽  
M.S. Minervini ◽  
...  

Solitary Fibrous Tumors (SFT) are rare spindle cell neoplasm that typically originate from the pleura. However, cases of the SFT are described with origin in other organs, including the urinary and genital apparatus. Within the kidney, except from the renal pelvis, only 19 cases of SFT are described and such rarity of localization makes the histogenesis and the prognosis of the tumor rather unknown. We report the case of a 72-year-old lady who attended our Unit for a mass that was clinically palpable at the level of the left hemiabdomen. The tomodensitographic test indicated a 19cm-diameter mass of likely pertinence of the middle bystender of the left kidney. She had undergone left radical nephrectomy. The histological examination highlighted a solitary fibrous tumor (SFT): the presence of hypercellularity, of cellular pleiomorphism and of a high number of mitosis has led to a histological diagnosis of malignancy for the neoplasm analyzed. The SFT are of rare clinical comparison: this does not allow for a deep knowledge of the lesion histogenesis and prognosis; moreover, the clinical behavior should be more precisely defined.


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