scholarly journals NASOPHARYNGEAL ADMANTINOMATOUS CRANIOPHARYNGIOMA IN 14 YEARS OLD BOY- A CASE REPORT STUDY

2020 ◽  
Vol 7 (2) ◽  
pp. 251-253
Author(s):  
Kshama Tiwari ◽  
Parul Gupta ◽  
Sumaiya Irfan ◽  
Noorin Zaidi ◽  
Sharique Ahmad ◽  
...  
Keyword(s):  
Sphenoid Sinus ◽  
Cystic Mass ◽  
Mass Lesion ◽  
Excision Biopsy ◽  
Imaging Characteristics ◽  
Parasellar Region ◽  
Epithelial Tumours ◽  
Well Differentiated ◽  
Microscopic Findings ◽  
Sellar Floor

Craniopharyngiomas are rare benign epithelial tumours arising from the pituitary stalk or gland. The sellar and parasellar region is the most commonly involved sites but at times tumors extend below the sellar floor involving the sphenoid sinus, invade the pharynx and reach upto the nasal cavities. Here is a case of 14 years old boy presenting with nasal cavity mass leading to bilateral obstruction and he was operated to excise the mass lesion. Grossly a grayish white cystic mass lesion was obtained after excision biopsy. On cut section, cyst contained a greyish brown thick liquid like material, with the microscopic findings of densely packed nodules of well differentiated epithelium along with stellate reticulum and wet keratin consistent with the diagnosis of craniopharyngioma. Clinical features along with imaging characteristics (except site of the lesion) and histopathological findings were all consistent with primary admantinomatous craniopharyngioma,

scholarly journals Enhancing Mass Lesion of the Sphenoid: Atypical Presentation of Ongoing Pneumatization

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Deepak Vallabhaneni ◽  
Anthony Mohamed ◽  
Zain Badar ◽  
Rajiv Mangla
Keyword(s):  
Skull Base ◽  
Complex Variable ◽  
Early Life ◽  
Sphenoid Sinus ◽  
Mass Lesion ◽  
Atypical Presentation ◽  
Diagnostic Dilemma ◽  
Imaging Characteristics ◽  
Unnecessary Testing

Sinus pneumatization is a complex variable process that begins in early life and continues for many years. We present a case of a 6-year-old boy with progressive headaches and neurologic symptoms suggestive of intracranial pathology. The presence of enhancing tissue within the sphenoid sinus created a diagnostic dilemma which leads to a transsphenoidal biopsy. Knowledge of imaging characteristics associated with incomplete pneumatization can help differentiate it from more ominous skull base pathology and prevent unnecessary testing. We describe four-year imaging follow-up in a patient with incomplete pneumatization of the sphenoid sinus presenting as an enhancing mass lesion with subsequent follow-up imaging demonstrating gradual regression and increased aeration of the sphenoid sinus.

scholarly journals Multicystic nephroma: a rare benign renal tumor with diagnostic predicament

2018 ◽  
Vol 6 (9) ◽  
pp. 3175
Author(s):  
Kusuma Venkatesh ◽  
Savithri Ravindra ◽  
Ankita Agarwal ◽  
Ankit Malhotra
Keyword(s):  
Inflammatory Cell ◽  
Malignant Lesion ◽  
Cystic Mass ◽  
Mass Lesion ◽  
Cystic Nephroma ◽  
Chronic Inflammatory Cell ◽  
Diagnostic Dilemma ◽  
Histological Criteria ◽  
Rare Benign Tumor ◽  
Well Differentiated

Multi cystic Nephroma is a rare benign tumor of kidney occurring in adults which has clinical, radiological and morphological features causing diagnostic dilemma as it mimicks other cystic renal lesions. Distinguishing it from a cystic renal carcinoma is very important. Multicystic nephroma is usually unilateral, more common in females, presenting as a well capsulated mass lesion with multiple non communicating cysts lined by hobnailing epithelium. A similar lesion occurring in children represents a well differentiated nephroblastoma. The case presented here was a female patient complaining of pain in the left flank and had a mass lesion which was diagnosed as cystic renal cell carcinoma radiologically. The nephrectomy specimen showed a multilocular cystic mass well delineated from adjacent renal parenchyma. Histopathologically the cysts were lined by hobnail type of epithelium and separated by fibrocollagenous stroma. The stroma had hyalinised areas, chronic inflammatory cell infiltration and foci of mature adipose tissue. No atypia or mitoses were seen in the epithelium or stromal cells. Based on the histological criteria a diagnosis of multicystic nephroma was made. It is important to make a diagnosis of multicystic nephroma based on histomorpholgical criteria as it relieves the patient from the burden of a malignant lesion.

scholarly journals Squamous cell carcinoma in mature cystic teratoma of the ovary

2012 ◽  
Vol 65 (9-10) ◽  
pp. 429-431 ◽  
Author(s):  
Jelena Amidzic ◽  
Matilda Djolai ◽  
Mihaela Mocko-Kacanski ◽  
Aleksandar Gluhovic ◽  
Jelena Ilic ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Malignant Transformation ◽  
Squamous Cell ◽  
Rare Complication ◽  
Cystic Teratoma ◽  
Internal Surface ◽  
Cystic Mass ◽  
Mature Cystic Teratoma ◽  
Well Differentiated

Introduction. Malignant transformation is a rare complication of mature cystic teratoma, with squamous cell carcinoma as the most common malignancy (in 75% of cases). In this article we present a case of a well-differentiated squamous cell carcinoma arising in a mature cystic teratoma and discuss the morphological and clinico-pathological features of malignant transformation in teratoma. Case Report. An 80-year-old woman with symptoms of acute abdomen underwent left salpingo-oophorectomy. Gross examination showed a cystic mass measuring 20 cm in diameter, with papillary formation on its internal surface. Histology revealed a well-differentiated squamous cell carcinoma arising in mature cystic teratoma. Squamous epithelium surrounding the tumor was dysplastic. Conclusion. Squamous cell carcinoma in mature cystic teratoma is a rare pathologic event and in most cases it is an accidental pathohistological finding.

scholarly journals Multimodal-imaging characteristics of a prolapsed ureterocele causing an acute urethral obstruction in a dog

2020 ◽  
Vol 65 (No. 8) ◽  
pp. 364-370
Author(s):  
Y Lee ◽  
H Kim ◽  
J Ko ◽  
K Eom ◽  
J Kim
Keyword(s):  
Multimodal Imaging ◽  
Excretory Urography ◽  
Cystic Mass ◽  
Surgical Removal ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Ureterovesical Junction ◽  
Imaging Characteristics ◽  
Yorkshire Terrier ◽  
Bladder Mass

A 2-year-old Yorkshire Terrier was presented with haematuria and dysuria. On the ultrasonography, an irregularly shaped, cystic, intraluminal urinary bladder mass was identified at the left ureterovesical junction. The computed tomographic excretory urography and magnetic resonance imaging revealed a pouch-like cystic mass arising from the distal ureter embedded at the ureterovesical junction. The distal portion of the mass prolapsed into the proximal urethra and obstructed the urethral lumen. The multimodal imaging findings were consistent with a prolapsed ureterocele and were further confirmed with surgery and histopathology. After surgical removal of the mass, the clinical signs clearly improved. To the best of our knowledge, this is the first report of multimodal imaging characteristics and the outcome of a prolapsed ureterocele in a dog.

scholarly journals A case report of rare location of ganglioglioma

2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Vikas Sharma ◽  
S. Bhaskar ◽  
Sumit Ramdas Hire ◽  
Arvind Ahuja
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
De Novo ◽  
Occipital Lobe ◽  
Cystic Mass ◽  
Mass Lesion ◽  
Occipital Region ◽  
Rare Tumors ◽  
Rare Location ◽  
The Central Nervous System

Abstract Background Gangliogliomas are rare tumors of the central nervous system. They can occur anywhere in the central nervous system but are most commonly located in the temporal lobe and are mainly found in children. Anaplastic ganglioglioma can result from either de novo or transformation of a pre-existing lesion. Case presentation We report a case of de novo anaplastic ganglioglioma in the parieto occipital region, which is a rare location. A 34-year-old lady presented with features of raised intracranial pressure (ICP) with right side hemiparesis. Contrast-enhanced magnetic resonance imaging (CEMRI) of the brain showed well-defined intense heterogenously enhancing solid cystic mass lesion 5.3 × 5.2 cm in the left parieto occipital region with mass effect and midline shift. Intraoperatively, a cystic mass lesion with reddish brown nodule was seen in the left occipital lobe. Complete tumor excision was done. Microscopic and IHC examination was suggestive of anaplastic ganglioglioma. The post-operative period was uneventful. The patient received 60-Gy radiotherapy with temozolamide as adjuvant therapy, and repeat imaging showed no tumor recurrence. Conclusion Anaplastic gangliogliomas are rare tumors with parieto occipital as rare location.

Mucocele of the pterygoid recess treated by laser surgery

1985 ◽  
Vol 63 (6) ◽  
pp. 970-972 ◽  
Author(s):  
James E. Wilberger ◽  
Adnan Abla ◽  
John Kennerdell ◽  
Joseph C. Maroon
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Surgical Management ◽  
Paranasal Sinuses ◽  
Laser Surgery ◽  
Sphenoid Sinus ◽  
Resonance Imaging ◽  
Content Type ◽  
Imaging Characteristics ◽  
Fine Print

✓ Mucoceles arising from accessory paranasal sinuses about the orbit are quite rare. A case is reported of a retro-orbital mucocele arising from the pterygoid recess of the sphenoid sinus. The clinical and anatomical presentations, computerized tomographic and magnetic resonance imaging characteristics, and laser surgical management of such lesions are described.

scholarly journals Intramuscular lipoma: a review of the literature

2014 ◽  
Vol 6 (4) ◽  
Author(s):  
Shane McTighe ◽  
Ivan Chernev
Keyword(s):  
Differential Diagnosis ◽  
Soft Tissue ◽  
Clinical Features ◽  
Common Type ◽  
Fatty Tissue ◽  
Review Of The Literature ◽  
Mesenchymal Tumors ◽  
Intramuscular Lipoma ◽  
Imaging Characteristics ◽  
Well Differentiated

Lipomas are the most common type of soft tissue mesenchymal tumors. They are typically located subcutaneously and consist of mature fatty tissue. When they occur under the enclosing fascia, they are called deep-seated lipomas. Infrequently, lipomas can arise inside the muscle and are called intramuscular lipomas. Intramuscular lipomas have been commonly investigated and categorized in the same group as other deep-seated and superficial lipomatous lesions. Their clinical, histological and imaging characteristics may resemble well-differentiated liposarcomas, further adding to the difficulties in the differential diagnosis. This article summarizes the available literature and describes the typical epidemiological, pathological and clinical features of intramuscular lipomas, as well as delineating their treatment and prognosis.

Microsurgical anatomy of the sellar region

1975 ◽  
Vol 43 (3) ◽  
pp. 288-298 ◽  
Author(s):  
Wade H. Renn ◽  
Albert L. Rhoton
Keyword(s):  
Sphenoid Sinus ◽  
Carotid Arteries ◽  
Sella Turcica ◽  
Acute Angle ◽  
Surgical Approaches ◽  
Microsurgical Anatomy ◽  
Optic Nerves ◽  
Content Type ◽  
Sellar Floor ◽  
Fine Print

✓ Fifty adult sellae and surrounding structures were examined under magnification with special attention given to anatomical variants important to the transfrontal and transsphenoidal surgical approaches. The discovered variants considered disadvantageous to the transsphenoidal approach were as follows: 1) large anterior intercavernous sinuses extending anterior to the gland just posterior to the anterior sellar wall in 10%; 2) a thin diaphragm in 62%, or a diaphragm with a large opening in 56%; 3) carotid arteries exposed in the sphenoid sinus with no bone over them in 4%; 4) carotid arteries that approach within 4 mm of midline within the sella in 10%; 5) optic canals with bone defects exposing the optic nerves in the sphenoid sinus in 4%; 6) a thick sellar floor in 18%; 7) sphenoid sinuses with no major septum in 28% or a sinus with the major septum well off midline in 47%; and 8) a presellar type of sphenoid sinus with no obvious bulge of the sellar floor into the sphenoid sinus in 20%. Variants considered disadvantageous to the transfrontal approach were found as follows: 1) a prefixed chiasm in 10% and a normal chiasm with 2 mm or less between the chiasm and tuberculum sellae in 14%; 2) an acute angle between the optic nerves as they entered the chiasm in 25%; 3) a prominent tuberculum sella protruding above a line connecting the optic nerves as they entered the optic canals in 44%; and 4) carotid arteries approaching within 4 mm of midline within or above the sella turcica in 12%.

scholarly journals Endoscopic Orientation of the Parasellar Region in Sphenoid Sinus with Ill-Defined Bony Landmarks: An Anatomic Study

Skull Base ◽  
2010 ◽  
Vol 20 (06) ◽  
pp. 421-428 ◽  
Author(s):  
Sameh Amin ◽  
Ashraf Nasr ◽  
Hamid Saleh ◽  
Mohamed Foad ◽  
Islam Herzallah
Keyword(s):  
Sphenoid Sinus ◽  
Anatomic Study ◽  
Bony Landmarks ◽  
Parasellar Region

scholarly journals Renal epithelial and stromal tumor with a multiple cystic lesion localized in the upper portion of the right kidney

2020 ◽  
Author(s):  
Masato Sawamura ◽  
Naoki Sawa ◽  
Masayuki Yamanouchi ◽  
Daisuke Ikuma ◽  
Akinari Sekine ◽  
...  
Keyword(s):  
Renal Tissue ◽  
Cystic Mass ◽  
Japanese Woman ◽  
Stromal Tumor ◽  
Mass Lesion ◽  
Cystic Nephroma ◽  
Surgical Specimen ◽  
Renal Cystic Disease ◽  
Old Japanese ◽  
The Right

Abstract A 60-year-old Japanese woman was admitted because of the polycystic mass with right flank pain localized in the upper portion of the right kidney. Right nephrectomy was performed because the mass lesion had continuously increased in size over the past 10 years. A surgical specimen showed histology consistent with a mixed epithelial and stromal tumor, which is closely related to multilocular cystic nephroma, and was diagnosed by a defined capsule between the cystic mass lesion and normal renal tissue by CT and MRI, and histology. Localized renal cystic disease that does not have a capsule was excluded from differential diagnosis.

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