Surgery Plus Intraoperative Radiotherapy as Treatment for Squamous Cell Carcinoma Over Pilonidal Disease.

NCT ID: NCT04201002

Last Updated: 2019-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

1 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-02-01

Study Completion Date

2019-11-01

Brief Summary

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Background: Pilonidal sinus is a very common disease. Malignant transformation occurs in 0,1% of patients. The investigators present a case of squamous cell carcinoma arised from recurrent pilonidal disease, managed by multimodal treatment.

Case presentation: The investigators present a 70-year-old man with chronic pilonidal sinus. Inflammation had worsened in previous months and exploration revealed a large ulcerative mass which biopsy showed a squamous cell carcinoma. CT scan and MRI imaging showed tumoral invasion of the coccyx and both gluteus major muscles. Neoadjuvant radiotherapy, chemotherapy as radiosensitizer and surgery with intraoperative radiotherapy was decided in the multidisciplinary tumor committee. Post neoadjuvant therapy MRI showed partial response with a decrease of the mass but persistence of the coccyx infiltration.

Surgery consisted in en-bloc resection of the tumor with presacral tissues, coccyx and partial gluteal resection. Intraoperative radiotherapy was administered over the sacrum and in the bed of the coccyx resection. One week later, reconstructive surgery was practiced using a latissimus dorsi free flap, advancement of gluteal flaps and skin graft. Histological examination showed no residual tumor. The patient is currently asymptomatic and he has a satisfactory quality of life.

Conclusions: Although squamous cell carcinoma is rare, it must be suspected in patients with recurrent pilonidal disease. Diagnosis is done by histological examination of biopsies. This type of tumors have a high local recurrence rate. The investigators propose a multimodal treatment that includes neoadjuvant radiotherapy and chemotherapy as radiosensitizer and surgery plus intraoperative radiotherapy with the aim to decrease local recurrence rate.

Detailed Description

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Conditions

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Squamous Cell Carcinoma Pilonidal; Cyst, Malignant Surgery

Keywords

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Pilonidal sinus Squamous cell carcinoma Surgery Intraoperative radiotherapy Chemotherapy

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Interventions

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Resection plus intraoperative radiotherapy

En-bloc resection plus intraoperative radiotherapy

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Squamous cell carcinoma over pilonidal disease

Exclusion Criteria

* Distant Metastases
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hospital Provincial de Castellon

OTHER

Sponsor Role lead

Responsible Party

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Araceli Mayol Oltra

General Surgeon

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Araceli Mayol Oltra

Role: PRINCIPAL_INVESTIGATOR

Consultant

Locations

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Hospital Provincial Castellon

Castellon, Castellon, Spain

Site Status

Hospital Provincial Castellon

Castellon, , Spain

Site Status

Countries

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Spain

Other Identifiers

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HPCastellon

Identifier Type: -

Identifier Source: org_study_id