Retroperitoneal pelvic schwannoma in pregnancy: a case report

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.

Download Full-text

Myopericytoma of the Neck Originating in the Middle Scalene Muscle: A Case Report

Ear Nose & Throat Journal ◽

10.1177/0145561317096010-1102 ◽

2017 ◽

Vol 96 (10-11) ◽

pp. E5-E7 ◽

Cited By ~ 1

Author(s):

Mark B. Chaskes ◽

John W. Bishop ◽

Matthew Bobinski ◽

D. Gregory Farwell

Keyword(s):

Needle Biopsy ◽

Spindle Cell ◽

Tissue Sample ◽

Surgical Excision ◽

Scalene Muscle ◽

Spindle Cell Neoplasm ◽

Sensory Deficits ◽

Complete Surgical Excision ◽

Supraclavicular Fossa ◽

Cell Neoplasm

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.

Download Full-text

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

Ear Nose & Throat Journal ◽

10.1177/0145561319839821 ◽

2019 ◽

Vol 99 (7) ◽

pp. NP72-NP74

Author(s):

Mark B. Chaskes ◽

John W. Bishop ◽

Matthew Bobinski ◽

D. Gregory Farwell

Keyword(s):

Needle Biopsy ◽

Spindle Cell ◽

Tissue Sample ◽

Surgical Excision ◽

Scalene Muscle ◽

Spindle Cell Neoplasm ◽

Sensory Deficits ◽

Complete Surgical Excision ◽

Supraclavicular Fossa ◽

Cell Neoplasm

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.

Download Full-text

Recurrence of acoustic neurilemoma as a malignant spindle-cell neoplasm

Journal of Neurosurgery ◽

10.3171/jns.1990.73.6.0946 ◽

1990 ◽

Vol 73 (6) ◽

pp. 946-950 ◽

Cited By ~ 35

Author(s):

Catriona A. McLean ◽

John D. Laidlaw ◽

David S. B. Brownbill ◽

Michael F. Gonzales

Keyword(s):

Cerebellopontine Angle ◽

Spindle Cell ◽

Positive Staining ◽

Nerve Sheath Tumor ◽

Content Type ◽

Spindle Cell Neoplasm ◽

Nerve Sheath ◽

Cell Neoplasm ◽

Acoustic Nerve ◽

S 100

✓ A 75-year-old man presented with a right cerebellopontine angle tumor 11 months after complete macroscopic resection of a right acoustic neurilemoma. Histological examination of the recurrent tumor showed a malignant spindle-cell neoplasm with positive staining for S-100 protein. The patient had no stigmata of von Recklinghausen's disease. It is proposed that this recurrence represents progression from a benign to a malignant acoustic nerve-sheath tumor, an event that is extremely rare outside the clinicopathological context of neurofibromatosis.

Download Full-text

A rare presentation of orbital dermoid: A case study

International Journal of Clinical and Experimental Ophthalmology ◽

10.29328/journal.ijceo.1001037 ◽

2021 ◽

Vol 5 (2) ◽

pp. 016-018

Author(s):

Girimallanavar Sheetal V ◽

Channabasappa Seema ◽

Aluri Balasubrahmanyam ◽

Cyriac Divya Rose ◽

Jose Aiswarya Ann

Keyword(s):

Dermoid Cyst ◽

Surgical Excision ◽

Needle Aspiration ◽

Rare Presentation ◽

Cyst Excision ◽

Lacrimal System ◽

Complete Surgical Excision ◽

Silicone Intubation ◽

Needle Aspiration Cytology

Introduction: A dermoid cyst is a developmental choristoma lined with epithelium and filled with keratinized material arising from ectodermal rests pinched off at suture lines. These are the most common orbital tumors in childhood. They are categorized into superficial and deep. Superficial orbital dermoid tumors usually occur in the area of the lateral brow adjacent to the frontozygomatic suture. Infrequently a tumor may be encountered in the medial canthal area [1], which is the second most common site of orbital dermoids. We report a case where a swelling presented in the medial canthal area without involving the lacrimal system. Case report: A 43 year old lady presented with complaint of swelling near the (RE; Right eye) since 2 years duration. She presented with a solitary 1.5 cm x 1 cm ovoid, non-tender, non-pulsatile, firm, non-compressible mobile swelling with smooth surface over the medial canthus of right eye. (MRI; Magnetic Resonance Imaging) brain and orbit showed right periorbital extraconal lesion and the (FNAC; Fine Needle Aspiration Cytology) suggested of Dermoid Cyst. RE canthal dermoid cyst excision was done under Local Anasthesia. Conclusion: Complete surgical excision in to be treatment of choice for dermoids. Since medial canthal mass can involve the lacrimal system, it becomes necessary to perform preoperative assessments using (CT; Computed Tomography), MRI or dacryocystography while planning the surgical approach. Silicone intubation at the beginning of the surgery is an easy and effective way of identifying canaliculi and of preventing canalicular laceration during dermoid excision if the lacrimal system is found to be involved.

Download Full-text

A Unique Case of a Sublingual-Space Schwannoma Arising from the Mylohyoid Nerve

Ear Nose & Throat Journal ◽

10.1177/014556131008900707 ◽

2010 ◽

Vol 89 (7) ◽

pp. E31-E33 ◽

Cited By ~ 2

Author(s):

Kavita Malhotra Pattani ◽

Kevin Dowden ◽

Cherie-Ann O. Nathan

Keyword(s):

Spindle Cell ◽

Needle Aspiration ◽

Mylohyoid Muscle ◽

Unique Case ◽

Aspiration Cytology ◽

Spindle Cell Neoplasm ◽

Cell Neoplasm ◽

Mylohyoid Nerve ◽

Needle Aspiration Cytology ◽

The Right

We describe a unique case of a sublingual-space schwannoma presenting as a painless, 3 × 2-cm enlarging mass in the oral cavity of a 63-year-old man. Computed tomography demonstrated a distinct, well-encapsulated mass in the right side of the floor of the mouth. Findings on fine-needle aspiration cytology were consistent with a pleomorphic adenoma. Transoral excision was performed. Intraoperatively, the mass appeared to involve the nerve to the mylohyoid muscle. Upon removal, the gross tumor measured 4.4 × 3.5 × 2.5 cm. On microscopic examination, the spindle-cell neoplasm was found to be consistent with a schwannoma. Schwannomas of the sublingual space are exceedingly rare. Moreover, to the best of our knowledge, this case represents the first published occurrence of a schwannoma that arose from the mylohyoid nerve.

Download Full-text

Synovial Sarcoma of the Floor of the Mouth: A Rare Clinical Entity with Review of Literature

International Journal of Head and Neck Surgery ◽

10.5005/jp-journals-10001-1221 ◽

2015 ◽

Vol 6 (2) ◽

pp. 49-52

Author(s):

Sudhir Naik ◽

Rajshekar Halkud ◽

KT Siddappa ◽

A Nanjundappa ◽

Siddharth Biswas ◽

...

Keyword(s):

Synovial Sarcoma ◽

Surgical Excision ◽

Needle Aspiration ◽

Clinical Entity ◽

Rare Clinical Entity ◽

Review Of Literature ◽

Spindle Cell Neoplasm ◽

Food Residue ◽

Floor Of The Mouth ◽

Needle Aspiration Cytology

ABSTRACT Background Head and neck synovial sarcoma (SS) amounts to 6.8% of all total body SS, with high incidences in the hypopharynx, postpharyngeal region and the parapharyngeal space. Also, incidences of SS in the tongue, soft palate, mandible, buccal mucosa, floor of the mouth, lungs, thymus, trunk and posterior peritoneum are reported. Case report We report a case of 12-year-old girl with swelling in the floor of the mouth for 2 months. The patient had difficulty in speech, tongue movements, poor oral hygiene due to food residue collecting around the tumor in the floor of the mouth. A smooth 4 × 4 cm globular mass arising from the floor of the mouth with the fine needle aspiration cytology (FNAC) as spindle cell neoplasm. Wide excision and immunohistology confirmed it as calcified synovial sarcoma, hence postoperative chemotherapy was given. There is no recurrence for the past 3 years. Conclusion Synovial sarcoma is a rare tumor in the oral cavity, which is slow growing and of variable aggressiveness. Immunohistological analysis confirming the diagnosis and wide surgical excision with adjuvant chemotherapy is the modality preferred in these cases. Recurrence is common in the first 2 years of therapy but can occur later also. How to cite this article Nanjundappa A, Naik SM, Halkud R, Chavan P, Siddappa KT, Biswas S. Synovial Sarcoma of the Floor of the Mouth: A Rare Clinical Entity with Review of Literature. Int J Head Neck Surg 2015;6(2):49-52.

Download Full-text

COMPUTED TOMOGRAPHY CORRELATION OF THORACIC LESIONS WITH TRANSTHORACIC FINE NEEDLE ASPIRATION CYTOLOGY AND BIOPSY

SRMS Journal of Medical Science ◽

10.21761/jms.v2i02.2 ◽

2019 ◽

Vol 2 (2) ◽

Author(s):

Rajneesh Madhok ◽

Ashish Gupta ◽

Lalit Singh ◽

Tanu Agarwal

Keyword(s):

Fine Needle Aspiration ◽

Predictive Value ◽

Fine Needle Aspiration Cytology ◽

Needle Aspiration ◽

Aspiration Cytology ◽

Ct Guided ◽

Fine Needle ◽

Malignant Lesions ◽

Needle Aspiration Cytology ◽

Adequate Tissue

INTRODUCTION: The study is an attempt to evaluate the sensitivity, specificity, positive predictive value, negative predictive value, p Value and complications of CT guided thoracic interventions fine needle aspiration cytology and core biopsy which are used for diagnosing benign and malignant thoracic lesions. MATERIAL AND METHODS: Study included 102 Patients (87 males and 15 females) with age group ranged from 15 to 87 years.A total of 143 CT guided interventions (84 FNAC’s and 59 core biopsies) were performed in 102 patients. The tissue obtained was sent to the laboratory for histopathological and cytological analysis for a final diagnosis which would contribute to patient management. RESULTS: All( 59) core biopsies were successful in procuring adequate tissue for histopathological analysis and the yield of core biopsies was 100% .However out of 84 FNAC’s only 4 were unsuccessful in procuring adequate tissue with a failure rate of 4.8%. Post procedural biopsy complications were only three (2.1%) which were small pneumothorax. There were 75 malignant lesions and 23 benign lesions based on cytology and histopathology (4 were excluded due to inadequate sample). There was good agreement between benign and malignant lesions diagnosed on CT and that diagnosed by pathology. The most common benign and malignant lesions were granulomatous lesion and squamous cell carcinoma. CONCLUSION: Percutaneous CT guided interventions like core biopsy and fine needle aspirations cytology are simple minimal invasive procedures with good patient acceptance and low morbidity and almost negligible mortality. CT guided interventions should be performed early for diagnosis of thoracic lesions.

Download Full-text

RARE-20. MALIGNANT PERIPHERAL NERVE SHEATH TUMOR OF A CRANIAL NERVE IN AN INFANT WITH NEUROCUTANEOUS MELANOSIS

Neuro-Oncology ◽

10.1093/neuonc/noaa222.731 ◽

2020 ◽

Vol 22 (Supplement_3) ◽

pp. iii446-iii446

Author(s):

Lacey Carter ◽

Naina Gross ◽

Rene McNall-Knapp ◽

,and Jo Elle Peterson

Keyword(s):

Peripheral Nerve ◽

Cranial Nerve ◽

Leptomeningeal Disease ◽

Nerve Sheath Tumor ◽

Peripheral Nerve Sheath Tumor ◽

Neurocutaneous Melanosis ◽

Spindle Cell Neoplasm ◽

Lower Back ◽

Nerve Sheath ◽

S 100

Abstract At one month of age, a female presented with a giant congenital nevus along lower back and thighs and hydrocephalus. A ventriculoperitoneal shunt was placed. An MRI was done at six months, initially reported as normal. At eleven months of age, five months after original MRI, patient presented with dysconjugate gaze and lethargy. MRI showed new 3.8 x 3.7 x 3.4 cm right cerebellopontine angle mass extending into Meckel’s cave and foramen ovale along with leptomeningeal disease extending from the mass along the entire length of the spinal cord. Retrospective review of prior MRI revealed subtle leptomeningeal enhancement concerning for neurocutaneous melanosis (NCM). Given the leptomeningeal disease, family elected for open biopsy and debulking of lesion instead of aggressive resection. Histologically, the mass showed hypercellular spindle cell neoplasm with mitotic activity and necrosis mixed with remnants of normal cranial nerve. GFAP was negative, excluding a glioma. HMB-45, MITF, panmelanoma, and Melan-A were negative, excluding melanoma. A negative myogenin stain ruled out ectomesenchymoma. S-100 protein and SOX-10 positivity with variable loss of staining for trimethylation of histone H3 K27 were indicative of malignant peripheral nerve sheath tumor (MPNST). Given the course of the mass, trigeminal nerve MPNST was presumed. Given the poor prognosis of intracranial MPNST and NCM, family elected to forgo treatment and was discharged with hospice. She died 25 days after surgery. Cranial nerve MPNST is rare. MPNST in patients with NCM has not previously been reported to our knowledge.

Download Full-text