Is repeat wide excision plus radiotherapy of localized rectal melanoma another choice before abdominoperineal resection?A case report

BACKGROUND Rectal melanoma is an uncommon neoplasm that accounts for approximately 1 percent of rectal cancer cases.Abdominoperineal resection was regarded as the radical procedure for disease control.Nevertheless,it led to more postoperative complications than sphincter-sparing wide local excision(WLE)and reduced the patient’s quality of life(QOL)owing to creation of colostomy.Therefore,in this study,WLE,radiotherapy(RT),and a second WLE were conducted on a patient who had been diagnosed with localized rectal melanoma.CASE SUMMARY The patient was a 79-year-old woman who had been experiencing anal pain and bloody stool for 1 mo.Colonoscopy,magnetic resonance imaging,positron emission tomography–computed tomography,and histological analysis of tissue biopsy using the histological markers Melan-A(+),S-100(+),and Ki-67(+,50%)lead to the diagnosis of localized rectal melanoma.The patient had initially undergone WLE to resolve problem of anal bleeding,followed by RT to treat the residual lesion with partial response.Subsequently,the residual lesion was removed with margin-free resection by the second WLE.The patient’s postoperative course was smooth and uneventful.During the 2-year follow-up,no local recurrence was observed.Additionally,a good functional outcome and improved QOL were reported.CONCLUSION Combining WLE,RT,and repeat WLE is proposed as a viable alternative for treating rectal melanoma accompanied by bleeding symptoms that cannot be completely resected at the beginning.

Mucinous adenocarcinoma of the buttock associated with hidradenitis:A case report

BACKGROUND Mucinous adenocarcinomas of the buttock are rare and have an uncertain etiology and natural course.They are usually related to chronic anal fistulas,hidradenitis suppurativa,or Crohn's disease.Here,we report a case of mucinous adenocarcinoma associated with hidradenitis and contradictory immunochemistry results.CASE SUMMARY A 62-year-old man complained of recurrent abscesses of the buttock for 3 years.He had several scars and nodules in bilateral buttocks,with purulent discharge.The skin lesions did not appear to originate from the anus.The patient was diagnosed with recurrent abscesses due to hidradenitis suppurativa at the first visit.He showed purulent and subsequent mucin discharge in the first operation and was diagnosed with mucinous adenocarcinoma.Several examinations were performed to determine disease origin and staging.There were no significant findings or evidence of anal fistulas.Hence,he underwent wide local excision and V-Y advancement flap in the second operation.The final diagnosis was mucinous adenocarcinoma without any evidence of anal fistulas.Additional immunochemistry test results were negative for cytokeratin(CK)7 and positive for CK20 and CDX2,with a colorectal origin.A pathologist suggested that the disease originated from a chronic anal fistula.The patient has remained free of recurrence for 24 mo.CONCLUSION Although the patient with mucinous adenocarcinoma showed an atypical course,immunochemistry helped detect the disease origin.

The role of radiotherapy in 74 patients with dermatofibrosarcoma protuberans

Objective:To study treatment and prognostic factor in 74 patients with dermatofibrosarcoma protuberans.Meth-ods:From August 1990 to November 1999,74 patients with dermatofibrosarcoma protuberans(DFSP)confirmed by pathology were treated in Cancer Hospital of Sun Yat-sen University.72 cases were given wide excision and 2 cases were given local exci-sion.All of 74 cases,52 cases had surgical resection alone,and 22 cases had surgical resection combined with radiotherapy.Total dose of radiotherapy was 50-70 Gy.Results:The rate of recurrence was 36.1% for all patients.The 5-year recurrence-free survival(RFS)rate was 66%.The 5-year recurrence-free survival rates for resection alone and combined with radiotherapy were 58% and 90%,respectively(P=0.0187).The 5-year recurrence-free survival rates for positive microscopic margins and negative microscopic margins were 57% and 75%,respectively(P=0.0468).Conclusion:Post-operation radiotherapy is an effective treatment to decrease the recurrence rate for the patients with positive microscope,or the patients without suitable surgical treatment.

Surgical Management of Severe Hidradenitis Suppurativa in Women: Outcome and Quality of Life Assessment

Background: Hidradenitis suppurativa (HS) or Acne inversa sometimes referred to as Verneuil’s disease, is a rare and debilitating condition arising in the intertriginous folds that bear apocrine glands (axillae, groin, perineum, pubis, ano-genital area). It has a deleterious impact on the life of affected persons who tend to be more depressive and poorly socially and sexually connected because of pain, malodor and stigmatization. Methods: We conducted a retrospective study in Henri Mondor Hospital in Créteil, France, in order to assess the effectiveness of surgery as a radical treatment and also assess the factors related to recurrence and the surgical and sexual satisfaction in women operated for severe HS of perineum and genitalia. Results: Fifty-five women were included. We got a recurrence rate of 23.6%. 66.7% of recurrence occurred after localized excision. 83% of patients were satisfied with surgery results and would undergo a revision surgery or recommend it. The factors significantly associated with recurrence were overweight (p = 0.0046), location in groin (p = 0.0040), localized excision (p = 0.02), total excision (p = 0.009), healing via secondary intention (p = 0.001) and disability due to HS (p = 0.006). Assessment of sexual response thanks to the FSFI showed an alteration of all the domains of sexual response but the composite index of 18.51 was below the threshold to diagnose pathologic sexual condition.

Risk factors related to postoperative recurrence of dermatofibrosarcoma protuberans: A retrospective study and literature review

BACKGROUND Dermatofibrosarcoma protuberans(DFSP)is a rare low-grade malignant soft tissue tumor characterized by rosette-like infiltrative growth.Postoperative recurrence of this tumor is very common.AIM To evaluate the risk factors related to recurrence after wide local excision(WLE)of DFSP and to guide clinical diagnosis and treatment.METHODS The medical records of 44 DFSP patients confirmed by pathology at our hospital from 2012 to 2019 were retrospectively reviewed.The relationship between clinical features,tumor characteristics,treatment,and recurrence risk were analyzed,and the possible risk factors for postoperative tumor recurrence were evaluated.RESULTS There were 44 patients in total,including 21 males and 23 females.The median progression free survival was 36 mo(range,1-240 mo).Twenty patients were treated for the first time,while 24 had previous treatment experience.Forty-two cases were followed for 25.76±22.0 mo,among whom four(9.52%)experienced recurrence after WLE(rate was 9.52%).The recurrence rate in the recurrent group was higher than that in the patients with primary tumor(19.05%vs 0%,P=0.028).Eighteen cases had a history of misdiagnosis(rate was 40.91%).The recurrence rate among patients with previous experience of misdiagnosis was significantly higher than in patients without(68%vs 36.84%,P=0.04).The tumor diameter in patients with a history of treatment was larger than in patients treated for the first time(4.75±0.70 cm vs 2.25±0.36 cm,P=0.004).CONCLUSION To sum up,the clinical manifestations of DFSP are not specific and are easily misdiagnosed,thus commonly causing the recurrence of DFSP.After incomplete resection,the tumor may rapidly grow.Previous recurrence history may be a risk factor for postoperative recurrence,and tumor location may have an indirect effect on postoperative recurrence;however,we found no significant correlation between sex,age,course of the disease,or tumor size and postoperative recurrence.

Laparoscopic abdomino-perineal resection for patients with anorectal malignant melanoma:a report of 4 cases

Anorectal malignant melanoma is a very rare but lethal disease. Patients with anorectal malignant melanoma commonly complain for changes in bowel habits and rectal bleeding. Therefore, anorectal malignant melanoma is often misdiagnosed as hemorrhoids, polyp or rectal cancer. Surgery is the mainstay of treatment for patients with anorectal malignant melanoma. However, whether abdominoperineal resection or wide local excision is the most appropriate surgical approach is still a controversial issue. Recently, with the great development of laparoscopic techniques, more and more operations can be performed by laparoscopic techniques. However, laparoscopic abdominoperineal resection for management of anorectal malignant melanoma has been rarely reported. In this study, we reported 4 patients with anorectal malignant melanoma underwent laparoscopic abdominoperineal resection. The outcomes of these patients were relatively good during a long time follow-up. Meanwhile, we reviewed the relevant studies with particular focus surgical treatment.

Advances in penile-sparing surgical approaches

Objective:Penile cancer(PeCa)is a rare disease with a global incidence of 36068 new cases in 2020.This accounts for 0.4%of all male malignancies.The surgical management of PeCa depends on the location of the tumour and depth of invasion.Here,we review the oncological and functional outcomes of penile-preserving surgery(PPS).Methods:A PubMed search until July 2021 on PPS for PeCa was conducted;a narrative review on different penile-sparing approaches and outcomes was performed.Results:PPS is now the standard of care in specialist centres for distal tumours not involving the corpus cavernosa.Laser therapy,glans resurfacing,and wide local excision are options for superficial lesions,whilst glansectomy is required for lesions invading into the corpus spongiosum.Conclusion:PPS aims to preserve urinary and sexual function without compromising oncological outcomes.