A case report of sinonasal glomangiopericytoma: An important reminder to always collect specimen

OBJECTIVES

To present a case report of sinonasal glomangiopericytoma (GPC) in a female patient in her thirties and to highlight the importance of collecting pathology specimens even in routine sinus surgery cases.

METHODS

A case report detailing the diagnosis of GPC in a female in her thirties, including her initial presentation, treatment, and follow-up, along with a brief review of the literature.

RESULTS

Pathology of the collected specimen revealed sinonasal GPC along with chronic rhinosinusitis. Immunohistochemistry was positive for SMA, beta-catenin, and cyclin D1; and negative for STAT6, ERG, pankeratin, SOX10, and S100.

CONCLUSION

This diagnosis expands the knowledge around the demographic profile of GPC patients. GPC should be included in the differential diagnosis of sinonasal masses, even in younger patients. The case highlights the importance of collecting the entire pathology specimen in all cases, even of ones that seem routine and benign.

Our Experience with Sinonasal Glomangiopericytoma in North India: A Case Series

Glomangiopericytoma (GPC) is a rare benign sinonasal tumor originating from Zimmerman's Pericytes surrounding capillaries and accounting for less than 0.05% of all sinonasal tumors. Glomangiopericytoma has low malignant potential (5-10%) and is mostly diagnosed in the 6th or 7th decade of age with slight female preponderance. We presented here a case series of 5 patients with sinonasal GPC. This research was conducted at a tertiary healthcare centre in North India. In our case series, all the patients were evaluated and underwent endoscopic surgical resection. All patients underwent digital subtraction angiography (DSA) and preoperative embolization. The coblation technique used for haemostasis proved very effective and time-saving. All patients exhibited cytoplasmic SMA positivity (a marker of GPC) and CD34 negativity, while one patient exhibited a high Ki-67 index (> 10%), which is a predictor of aggressive tumor behavior. None of the patients showed any recurrence in follow-up. We recommend performing complete endoscopic surgical excision to prevent recurrence. The use of DSA, preoperative embolization, and intraoperative use of the coblation technique provides a cleaner surgical field and reduced operating time.

Pericytic Lesions: A Paradigm of Overlapping Features

Although myopericytoma and glomangiopericytoma are considered the subtypes of the group myopericytomas (MPC), they differ morphologically. Both of the tumors arise from pericytic cells. Scalp MPC are infrequent, but extranasal glomangiopericytomas are extremely rare. Herein, we report a case of a 36-year-old female presenting with slowly growing scalp swelling. Histopathology showed a dermal tumor with features of myopericytoma as well as glomangiopericytoma within the same lesion. Immunohistochemistry and reticulin staining confirmed pericytic origin but could not differentiate between the two tumors. This case report adds to the rarity and morphologic heterogeneity of the group MPC.

Unveiling a Rarity: A Case Report on Glomangiopericytoma in the nasal cavity

Sino-nasal glomangiopericytoma is a rare benign tumour comprising only about 0.5% of all sino-nasal tumours. Presenting as a bleeding nasal mass, it is among the myriad of differential diagnoses for the same. Clinical characterisation of mass becomes difficult; hence, histopathology and immunohistocytochemistry play an essential role in clenching the diagnosis. Optimal treatment includes complete tumour excision with endoscopic or open approaches with or without preoperative embolization and a long post-operative follow-up period. Here we report such a case treated with endoscopic approach.

Supplementary Information

The online version contains supplementary material available at 10.1007/s12070-023-03975-z.

Top 10 Significant Spindled Head and Neck Lesions to Scrutinze

BACKGROUND

Spindled lesions are a challenging area in head and neck pathology. This is particularly true in the sinonasal tract, where several uncommon entities with both unique and overlapping morphologic, immunophenotypic, and/or molecular features can occur.

METHODS

Review.

RESULTS

The clinicopathologic characteristics of biphenotypic sinonasal sarcoma and nine important differential diagnostic considerations with one or more overlapping feature are summarized to establish a practical framework for approaching spindled lesions of the sinonasal tract.

CONCLUSION

Morphologic evaluation is central to the work up of sinonasal spindle cell lesions-in particular, cellular morphology, tumor architecture and growth pattern, and the presence of admixed epithelial elements - however, focused immunohistochemical analysis of neural, myogenic, rhabdomyoblastic, epithelial, and/or melanocytic marker expression and/or ancillary tests for tumor-specific molecular alterations may be necessary for definitive diagnosis.

A rare case of glomangiopericytoma in the nasal cavity: A case report in light of recent literature

Introduction and importance

Glomangiopericytoma (GPC) is a rare sinonasal tumor that behaves benignly with a long overall survival rate. It accounts for fewer than 0.5% of all sinonasal tumors.

Case presentation

We report the case of a 64-year-old man who presented with recurrent episodes of epistaxis. Rhinoscopy revealed a left posterior nasal septal mass with active oozing. Computed tomography (CT) showed a well-defined soft tissue lesion in the left nasal cavity measuring 1.95 × 1.51 cm. Complete endoscopic resection was successfully performed. Histopathological findings favored the diagnosis of GPC as it revealed tumor cells positive for smooth muscle actin and β-catenin with immunopositivity for CD34.

Clinical discussion

Presenting symptoms of GPC are predominated by epistaxis and nasal obstruction. Since CT and MRI merely lead to a presumptive diagnosis, histopathological findings are indispensable. Complete surgical excision of GPC remains the treatment of choice with excellent prognosis, especially when immunohistochemistry is positive for actin and CD34 immunostaining is negative.

Conclusion

GPC is a rare indolent tumor of pericytes that has a macroscopic appearance of a nasal polyp, which may result in uncertainty in the initial diagnosis. In most cases, GPC warrants only local excision. This case report adds to the literature and helps galvanize the developing clinical guidelines for diagnosis and treatment.

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Glomangiopericytoma (GPC) is a rare sinonasal tumor that behaves benignly with a long overall survival rate.

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GPC has a macroscopic appearance of a nasal polyp, resulting in uncertainty in the initial diagnosis.

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The utilization of histopathological findings to diagnose GPC is indispensable.

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Complete surgical excision is the mainstay of treatment.

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Regular postoperative lifelong follow-up is strongly recommended.

A rare combination of tumor-induced osteomalacia caused by sinonasal glomangiopericytoma and coexisting parathyroid adenoma: case report and literature review

BACKGROUND

Tumor-induced osteomalacia (TIO) is a rare, acquired disease of renal phosphate wasting and disturbed vitamin D homeostasis as a result of the action of a phosphaturic protein - FGF-23, produced by a neoplasm. Although the clinical and biochemical profile of the syndrome is characteristic, it remains underreported and unrecognized by clinicians. Hyperparathyroidism is rarely associated with oncogenic osteomalacia, but it should be considered because of potentially life-threatening hypophosphatemia caused by both conditions.

CASE PRESENTATION

We report a case of a 42-year-old woman admitted to the Department of Otolaryngology of the Military Institute of Medicine in Warsaw for the endoscopic resection of hormonally active glomangiopericytoma extending into the anterior skull base. She presented with a 5-year history of musculoskeletal pain and progressive weakness of the extremities which finally led her to become bedridden. After the excision of the tumor her symptoms and laboratory results gradually improved except increasing PTH serum levels. Further examination revealed a parathyroid proliferative tumor, which was surgically removed. The patient walked without aids at follow-up 16 months after the surgery.

CONCLUSIONS

This case is unusual because of tumor-induced osteomalacia and parathyroid adenoma occurring concomitantly. Further investigations of FGF-23 and PTH interplay should be conducted to elucidate the pathogenesis of hyperparathyroidism and tumorigenesis in some cases of TIO. By presenting this case, we wanted to remind clinicians of a rare and misdiagnosed paraneoplastic syndrome and highlight the importance of monitoring PTH concentrations during the follow-up of patients with TIO.

Glomangiopericytoma of the inferior nasal turbinate: A case report

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Glomangiopericytomas, which arises in the nasal cavity and may extend into the paranasal sinuses, is categorized as a borderline low malignancy tumor by the WHO classification.

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Complete transnasal endoscopic excision is the optimal treatment.

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A regular postoperative follow-up is recommended for early finding of tumor recurrence.

Introduction

Glomangiopericytoma is defined as a sinonasal tumor with perivascular myoid phenotype, which was first described in 1942 by Stout and Murray as a soft tissue tumor with characteristic proliferation including branching vessels and small vessel perivascular hyalinization.

The tumor accounts for less than 0.5 % of all sinonasal neoplasms. The World Health Organization (WHO) classified this tumor as glomangiopericytoma in 2005.

Case report

A 47-year-women presented with two years history of permanent left nasal obstruction and frequent epistaxis. Rhinoscopy revealed a friable grayish pink polypoidal mass, fully occupying the left anterior naris. Computed tomography showed a lesion involving the left nasal cavity, with a soft tissue density (70 UH) measuring 50 × 16 mm, widely infiltrative.

Endoscopic surgery was performed to remove the mass, considering the size, limited expansion and the accessible location of the tumor. The immunohistochemistry examination showed positive staining b-catenin tumor cells which confirmed the diagnostic of glomangiopericytoma.

After a 2 years follow-up, the patient showed no signs of recurrence.

Conclusion

Glomangiopericytomas generally arises in the nasal cavity and may extend into the paranasal sinuses. It is categorized as a borderline low malignancy tumor by the WHO classification. Complete transnasal endoscopic excision is the optimal treatment.

A rare case of sinonasal glomangiopericytoma post operative accidental diagnosis and managment-A case report

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Glomangiopericytoma is rare sinonasal disease with very good prognosis after surgical excision.

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Prognosis is very good after surgical excision.

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As most nasal tumors our case was also an accidental diagnosis following endoscopic sinus surgery. and complete clearance was suspicious.

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Patent was referred for adjuvant radiation.

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Revision surgery was done and wide clearance was established.

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Patient was saved from radiation.

Introduction

Glomangiopericytoma is a rare neoplasm of low malignant potential. It is a rare type of haemangiopericytoma located in nasal cavity. This neoplasm has good prognosis and complete surgical excision is treatment of choice. This case report is representing one such neoplasm. This reporting is done in line with the SCARE criteria (Agha et al., 2018 [1]).

Case presentation

We presenting a case of 54 year old male patient from upper socioeconomic status who presented at our institution with history of surgery (endoscopic sinus surgery with Septoplasty) 15 days back. A Final histopathology report suggested glomangiopericytoma. Since primary surgery was not done as per oncologic principals, patient was advised for adjuvant radiation. At our institute patient was evaluated again. Revision surgery was done. Patient was discharged next day.

Discussion

Glomangiopericytoma is a rare neoplasm with incidence of less than 0.5% of all neoplasms of sinonasal cavity. Prognosis is very good after complete surgical excision. It often confuses clinicians with nasal polyps. Here also patient was operated initially considering as benign polyposis outside. Patient was re-operated again to ensure the complete clearance.

Conclusion

This is the typical case of converting dual modality treatment to single modality with the help of knowledge, communication, transparent team work. This also a rare type of neoplasm and by reporting this rare case we are contributing to data pool of nasal tumors where lack of reporting is major obstacle in the formation of uniform treatment guidelines.

Variability of CD34 Expression in Sinonasal Glomangiopericytoma: A Potential Diagnostic Pitfall

Sinonasal glomangiopericytoma (GPC) is an uncommon primary sinonasal neoplasm showing a perivascular myoid differentiation. Originally perceived as an intranasal counterpart to soft tissue hemangiopericytomas, initial immunohistochemical reports showed mostly negative to focal weak reactivity for CD34 as useful in separating GPC (almost always benign) from morphologic mimics, mainly solitary fibrous tumor (potentially aggressive). In anecdotally encountering cases of GPC with CD34 reactivity beyond the expected weak/negative immunoprofile, we sought to formally evaluate CD34 staining in 10 cases of GPC from two different vendors in conjunction with a meta-analysis of other GPC series reporting CD34 staining. Ten cases of GPC were retrieved from the authors' pathology archives (left nasal cavity = 7, right nasal cavity = 3; 5 men, 5 women; average age 59.0 years with range of 43-77 years). Follow-up showed no evidence of disease after complete resection from all 10 cases (average follow-up length of 53.3 months, range 6-106 months). All 10 GPC cases (100%) showed positivity using CD34 from Leica (QBend10 clone), with most showing moderate to diffuse staining intensity and moderate extent, while only 2 of 10 cases (20%) showed positivity using CD34 from Ventana (QBend10 clone), with both positive cases showing weak staining intensity and focal extent. Literature review of other studies (reporting ≥ 5 GPC cases) found a wide spectrum of CD34 positivity ranging from 0 to 100%; including our GPC cases, CD34 showed a cumulative positivity of 28%. Although negative CD34 reactivity has been historically regarded as prototypic for GPC, in this study we have exposed laboratory variability in CD34 expression and have shown that reliance on expected negative reactivity in GPC can be a clinically relevant diagnostic pitfall. Our findings suggest a panel approach in selecting diagnostic immunostains rather than relying on CD34 alone in the assessment of spindle cell neoplasms in the sinonasal tract with admixed prominent staghorn-like vasculature.

Glomangiopericytoma-type glomus tumour/myopericytoma of the lip

We describe the case of a 46-year-old man who presented with a four-month history of a reddish, otherwise asymptomatic, nodular lesion that involved the mucosal side of the upper lip. The lesion consisted of myoid glomus-like cells arranged around branching and thin-walled haemangiopericytoma-like vascular structures, and was classified as glomangiopericytoma. No recurrences occurred during an eight-month follow-up. To the best of our knowledge, this tumour has never previously been described in the mucosa of the lip.

Navigation-assisted endoscopic endonasal surgery of a glomangiopericytoma with intraorbital extension: A case report and literature review

A glomangiopericytoma, or sinonasal type hemangiopericytoma, is a rare lesion which accounts for <0.5% of all sinonasal tumors. The mainstay treatment is wide excision. Instead of traditional open surgical approaches, such as midfacial degloving or lateral rhinotomy, we offer a case of 21-year-old male with diagnosis of glomangiopericytoma with skull base and intraorbital invasion and received navigation-assisted endoscopic excision of a glomangiopericytoma.

Glomangiopericytoma of the Spinal Cord

Glomangiopericytoma, also referred to as a hemangiopericytoma-like tumor or sinonasal type hemangiopericytoma, is a rare tumor of the nasal cavity and paranasal sinus that has never been reported in the spinal cord. Here, we report a case of a 47-year-old man who developed glomangiopericytoma in the thoracic spine. This lesion showed a heterogeneous high signal intensity compared to the spinal cord on a T2-weighted image and an easily enhanced isointense signal on a T1-weighted image.

A Case of Glomangiopericytoma at the Nasal Septum

Glomangiopericytoma (GPC) is a rare sinonasal perivascular tumor that accounts for < 0.5-1% of all sinonasal tumors. GPC is categorized as a low-grade neoplasm with borderline malignancy and a tendency of local recurrence. GPC is a rare mesenchymal neoplasm characterized by the perivascular proliferation of tumor cells, and it requires being distinguished from solitary fibrous tumors. Here, we report a case of GPC in a 68-year-old male patient who presented at the emergency room of our hospital with a complaint of sudden epistaxis. A small, reddish, protruding tumor was observed on the right nasal septum. A biopsy revealed a possible perivascular tumor such as a GPC or solitary fibrous tumor. Thus, we performed complete resection with endoscopic surgery. The size of the resected tumor was 12 × 5 mm, and it showed a uniform proliferation of oval-to-short spindle-shaped cells with slightly branching vascular structures. The tumor cells showed minimal cytologic atypia and there were an average of 3 mitoses in 10 high power fields. Necrosis was not observed. The tumor cells showed strong and diffuse nuclear immunostaining with beta catenin and were negative with STAT6, CD34 and bcl-2. The MIB-1 labeling index was approximately 5%. Genetic testing revealed CTNNB1 mutation (p.S33C). Thus, a diagnosis of low grade GPC was made on the biopsy and the patient could be successfully treated with endoscopic resection.

Distinctive Head and Neck Bone and Soft Tissue Neoplasms

Benign and malignant primary bone and soft tissue lesions of the head and neck are rare. The uncommon nature of these tumors, combined with the complex anatomy of the head and neck, pose diagnostic challenges to pathologists. This article describes the pertinent clinical, radiographic, and pathologic features of selected bone and soft tissue tumors involving the head and neck region, including angiofibroma, glomangiopericytoma, rhabdomyosarcoma, biphenotypic sinonasal sarcoma, chordoma, chondrosarcoma, and osteosarcoma. Emphasis is placed on key diagnostic pitfalls, differential diagnosis, and the importance of correlating clinical and radiographic information, particularly for tumors involving bone.

The midfacial glomangiopericytoma - Case report

Glomangiopericytoma is classified as a borderline low malignancy tumor but recurrence rate is reported to be about 16.8%-30%, probably caused by the lack of radical resection.(1) It is a rare tumor arising from pericytes surrounding capillaries. The tumor has a predilection for the nasal cavity and paranasal sinuses. We report a case of glomangiopericytoma with an aim to present how it can invade and destroy both maxillary bones and lower part of nasal cavity. Due to its dimensions the tumor required extensive resection within tumor-free margins. On the basis of immunohistochemical staining the tumor was diagnosed as glomangiopericytoma. Strict follow-up of 16 months after radical resection revealed no recurrence of the tumor.