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Case Reports
. 2015 Mar 21:16:164-8.
doi: 10.12659/AJCR.892843.

Is histological examination necessary when excising a pilonidal cyst?

Styliani N Parpoudi  1 , Dimitrios S Kyziridis  1 , Dimitrios Ch Patridas  1 , Apostolos N Makrantonakis  1 , Pavlos Iosifidis  1 , Ioannis G Mantzoros  1 , Konstantinos C Tsalis  1
Affiliations
Case Reports

Is histological examination necessary when excising a pilonidal cyst?

Styliani N Parpoudi et al. Am J Case Rep. .

Abstract

Background: Pilonidal disease is a common inflammatory condition mostly affecting young males. Malignant degeneration of a pilonidal cyst is rare, with incidence estimated at 0.1%. The most common type is squamous cell carcinoma and the treatment of choice remains en block resection of the lesion.

Case report: We present the case of a patient with locally advanced squamous cell carcinoma arising in a pilonidal cyst, due to misdiagnosis of the disease during his first treatment.

Conclusions: Detailed histological examination of all excised pilonidal cyst lesions is essential and any histological suspicion should prompt a wider excision.

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Figures

Figure 1.
Figure 1.
Squamous cell carcinoma in sacrococcygeal area.
Figure 2.
Figure 2.
Pelvic MRI shows the mass, which reaches the elevators ani muscles.
Figure 3.
Figure 3.
Abdominal CT scan shows the mass invading the coccyx and the elevators ani muscles.
Figure 4.
Figure 4.
Abdominal CT scan shows the mass extending to the mesorectal fat without involving the posterior wall of the rectum.
See this image and copyright information in PMC

References

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