Gamma Knife Stereotactic Radiosurgery for Conjunctival Squamous Cell Carcinoma Invading the Anterior Orbit: A Case Series

2021 ◽  
pp. 1-9
Author(s):  
Bashar M. Bata ◽  
Matthias W.R. Radatz ◽  
Sachin M. Salvi
Keyword(s):  
Squamous Cell Carcinoma ◽  
Mr Imaging ◽  
Cell Carcinoma ◽  
Stereotactic Radiosurgery ◽  
Gamma Knife ◽  
Squamous Cell ◽  
Orbital Exenteration ◽  
Conjunctival Squamous Cell Carcinoma ◽  
Gamma Knife Stereotactic Radiosurgery

<b><i>Introduction:</i></b> The aim of the study was to report our experience in the use of Gamma Knife Stereotactic Radiosurgery (GKSTRS) for conjunctival squamous cell carcinoma (SCC) invading the orbit, as an alternative to exenteration surgery. <b><i>Patients and Methods:</i></b> Patients who had GKSTRS for conjunctival SCC invading the orbit but sparing the bone (AJCC eighth ed. T4a) with a minimum of 1-year follow-up were included. Treatment failure was defined as no decrease in tumour size 3 months post-treatment, or further growth during the follow-up period. Patients were followed up 3-monthly for 2 years and 6-monthly afterwards with a minimum of yearly MR Imaging of orbit. <b><i>Results:</i></b> Six patients met the inclusion criteria. MR imaging was used to identify the extent of orbital involvement of SCC. Stereotactic radiosurgery utilizing the Leksell Gamma Knife® Perfexion was delivered in a single session in which patients received 18–20 Gy to the 45–50% isodose. The median follow-up was 29 months. Four patients responded to the treatment and had no evidence of recurrence at their most recent follow-up. The treatment failed in 2 patients, in 1 of whom the tumour was larger and extended deeper into the orbit. The other patient developed a recurrence away from the treated area at 9 months, suggesting a multifocal disease. Both patients had poorly differentiated SCC. <b><i>Conclusion:</i></b> GKSTRS is a potential alternative to orbital exenteration surgery for conjunctival SCC extending into the anterior orbit in a selected group of patients refusing orbital exenteration or has a second blind eye. Nevertheless, the disease is more likely to recur than with exenteration surgery, hence lifelong monitoring and low threshold for surgical intervention or retreatment is prudent.

Conjunctival Adenosquamous Carcinoma Lacks MAML2 Translocation: A Variant of Squamous Cell Carcinoma With Mucoepidermoid Differentiation and Aggressive Behavior?

2020 ◽  
Vol 28 (8) ◽  
pp. 893-898
Author(s):  
Allie Lee ◽  
Hunter Kwok Lai Yuen ◽  
Clement C. Y. Tham ◽  
Wah Cheuk
Keyword(s):  
Squamous Cell Carcinoma ◽  
Salivary Gland ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Adenosquamous Carcinoma ◽  
Postoperative Radiotherapy ◽  
Palpebral Conjunctiva ◽  
Conjunctival Squamous Cell Carcinoma ◽  
Gland Type

Conjunctival adenosquamous carcinoma, also known as mucoepidermoid carcinoma (MEC), is a rare tumor that preferentially affects the perilimbal area of the conjunctiva with aggressive local invasion. Consisting of infiltrative proliferation of squamous cells and mucous cells, its morphologic features are reminiscent of the salivary gland-type MEC except for the absence of intermediate cells and frequent keratin production. We reported 2 cases of conjunctival adenosquamous carcinoma and, for the first time, studied the MAML2 translocation status of this rare entity. The 2 patients were women, aged 45 and 42 years, presenting with an erythematous lesion in the left lower palpebral conjunctiva and a pigmented nodule over the left nasal conjunctiva, respectively. One tumor recurred 6 months after the initial biopsy. Excision with lid reconstruction and postoperative radiotherapy was performed for margin involvement and perineural invasion. This patient was disease free at 3-year follow-up. The other patient was lost to follow-up after tumor excision. Fluorescence in situ hybridization and reverse transcription polymerase chain reaction failed to demonstrate MAML2 translocation and CRCT1-MAML2 transcripts in both tumors. The absence of this characteristic translocation and reappraisal of the cellular composition, morphologic features, and precursor lesion suggest that conjunctival MEC may represent a variant of conjunctival squamous cell carcinoma but not related to the salivary gland-type MEC.

scholarly journals Oral findings during follow-up of nasopharyngeal squamous cell carcinoma treatment: A case report

2021 ◽  
Vol 9 ◽  
pp. 2050313X2110330
Author(s):  
Atsushi Musha ◽  
Nobuteru Kubo ◽  
Naoko Okano ◽  
Hidemasa Kawamura ◽  
Yuhei Miyasaka ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Concurrent Chemoradiotherapy ◽  
Nasopharyngeal Cancer ◽  
Inflammatory Conditions ◽  
Positron Emission ◽  
History Of ◽  
Oral Area

A 50-year-old woman with a long history of nasopharyngeal cancer (T2N2M0, squamous cell carcinoma) underwent chemoradiotherapy and surgery. In the past, to prevent tumor recurrence or metastasis, she underwent concurrent chemoradiotherapy or neck dissection. However, during a follow-up 10 years after the surgery, intense F-18 fluorodeoxyglucose uptake was detected in the oral area (SUVmax 6.0). A biopsy of the area with F-18 fluorodeoxyglucose uptake revealed pathological inflammation. Radiography showed the presence of a wisdom tooth, located at the F-18 fluorodeoxyglucose accumulation site, and pericoronitis of this tooth was detected. Our findings indicate the importance of considering the effect of inflammatory conditions, such as periodontal disease, in using F-18 fluorodeoxyglucose positron emission tomography/computed tomography during follow-up after head and neck cancer treatment.

scholarly journals Squamous cell carcinoma of the scrotum in HIV: two case reports

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Jeff John ◽  
Ken Kesner ◽  
John Lazarus
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Case Reports ◽  
Treatment Options ◽  
Punch Biopsy ◽  
Delayed Treatment ◽  
Clinical Presentations ◽  
T1 N0 M0

Abstract Background Squamous cell carcinoma (SCC) of the scrotum was the first malignancy known to be associated with exposure to an occupational carcinogen—in this case, soot trapped in the breeches of chimney sweeps. Better civil rules and regulations and the replacement of hearths with other forms of heating have rendered SCC of the scrotum a rarity. We report two cases of scrotal SCC with vastly differing clinical presentations and management. Case presentation Case 1 had T1 N0 M0 disease and presented with a small (< 2 cm), innocuous-looking, non-healing ulcer of eight years duration. A punch biopsy revealed a superficially invasive SCC confirmed on immunohistochemical profiling. A wide local excision of the lesion was subsequently performed. Follow-up at three years showed no signs of recurrence. Case 2 presented with T4 N1 M1 disease and rapidly progressing locally destructive mass. A punch biopsy of the scrotal lesion confirmed invasive moderately differentiated focally keratinising SCC. The metastatic evaluation confirmed the presence of metastatic, extensive para-aortic lymphadenopathy. He was managed with cisplatin-based chemoradiotherapy. Conclusion Early detection and management of patients with SCC of the scrotum are essential. If the diagnosis is delayed, treatment options become limited, and the prognosis is poor. Notwithstanding the rarity of this disease, multicentre trials are needed to provide more precise guidelines as to the optimal management of these patients.

Proton beam radiotherapy of locally advanced or recurrent conjunctival squamous cell carcinoma: experience of the CATANA Centre

2020 ◽  
pp. 1-8
Author(s):  
Roberto Milazzotto ◽  
Rocco Luca Emanuele Liardo ◽  
Giuseppe Privitera ◽  
Luigi Raffaele ◽  
Vincenzo Salamone ◽  
...  
Keyword(s):  
Overall Survival ◽  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Proton Beam ◽  
Squamous Cell ◽  
Locally Advanced ◽  
Disease Free Survival ◽  
Proton Beam Radiotherapy ◽  
Conjunctival Squamous Cell Carcinoma ◽  
The Impact

Abstract Aim: Conjunctival squamous cell carcinoma (SCC) is a rare tumour of the ocular region and microscopic radical surgical is difficult. There are no single guidelines for therapeutic management and the role of radiation therapy is not clearly defined although conventionally photon or electron beams are used. Proton beam radiotherapy (PBRT) is a new option for a conservative approach and allows good sparing of the organs at risk. Materials and methods: After surgical resection, we collected 15 cases treated at our institution with PBRT. The dose delivered was between 48 and 60 Gy relative biological effectiveness (RBE), with fractions of 12–15 Gy RBE. Results: After an average period of 48 months, the patients achieved excellent disease control (overall survival and disease-free survival: 86·6%), with minimal acute and late toxicity. Findings: In this work, we present our experience on the use of PBRT technique in SCC treatment. A larger sample of patients is needed to draw conclusions about the impact of this treatment on disease recurrence and overall survival.

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