Metastatic colon carcinoma found within an inguinal hernia sac: report of a case

A Rare Case of Sigmoid Colon Carcinoma in Incarcerated Inguinal Hernia

Incarcerated inguinal hernia is a common diagnosis in patients presenting a painful and nonreducible groin mass. Although the diagnosis is usually made by physical examination, the content of the hernia sac and the extent of the surgical operation may vary and can require multimodal imaging integration (e.g., ultrasonography, computed tomography); the usual finding is a segment of small bowel and, less commonly, large bowel. We present an extremely rare case of a sigmoid cancer incarcerated in a left inguinal hernia and infiltrating the spermatic cord. The patient underwent whole-body computed tomography (CT) with contrast agent injection for staging, followed by a left hemicolectomy paralleled by a unilateral orchiectomy.

A rare case of ascending colon adenocarcinoma incarcerated in an inguinoscrotal hernia: case report and literature review

Background

Inguinal hernias and colorectal cancers are common conditions, but the presentation of a loop of bowel containing cancer within a hernia is rare. Principles of surgery include oncological resection of the involved colonic segment as well as lymphatic drainage. Based on case reports of the last several decades, there have been no reports of a case where the reduction of an inguinoscrotal hernia and oncological colectomy were performed completely laparoscopically. We present the first instance of a completely laparoscopically assisted resection and hernia repair on a patient with T4 ascending colon cancer. A literature search on recent case reports over the last 30 years has also been presented with a focus on trends in treatment.

Case presentation

An 83-year-old man presented for further investigation of his iron deficiency anaemia and was diagnosed with adenocarcinoma of the ascending colon. This was demonstrated radiologically to be found within a large right inguinoscrotal hernia. He underwent a laparoscopically assisted right hemicolectomy and laparoscopic closure of the internal ring and recovered well.

Conclusions

Colorectal cancers within inguinal hernias are rare and can often present with complications such as perforation. As such, treatment has mostly involved an open operation. The last few years have shown feasibility of a laparoscopic approach and can be attempted safely when indicated.

Small bowel lymphoma presenting as inguinal hernia: case report and literature review

Background

Inguinal hernia is one of the most common benign pathologies that primarily affects men. Primary gastrointestinal non-Hodgkin’s lymphoma (PGI NHL) is the most common type of extranodal lymphoma. This study reports a rare case in which these two conditions co-exist.

Case presentation

An 85-year-old male complained of bowel movement pattern change, abdominal distension and loss of weight, without vomiting but with nausea. A computed tomographic scan of the abdomen showed a small bowel obstruction caused by a migration of a small bowel loop in the right inguinal canal, with a clinically non-reducible inguinal hernia. The patient underwent surgery. The histopathological report showed small bowel large B cell non-Hodgkin’s lymphoma.

Conclusion

When the diagnosis of the contents of an inguinal hernia is not well-established, surgery should be performed as soon as possible to ensure the cure of the disease and the correct diagnosis of the contents.

Localized peritoneal carcinomatosis mimicking an irreducible left inguinal hernia

Perforated colonic cancers are not rare and leave patients at risk of developing peritoneal carcinomatosis. We present a 68-year-old male patient with a perforated transverse colonic tumour who underwent emergency extended right hemicolectomy. He made an uneventful postoperative recovery, and received adjuvant chemotherapy. Unfortunately, a routine positron emission tomography-computed tomography scan 16 months later demonstrated an fluorodeoxyglucose-avid nodule in the left scrotum associated with an irreducible left inguinal hernia that contained sigmoid colon. At laparotomy, the discovery of isolated peritoneal recurrence in the hernia sac was unexpected, given the absence of local recurrence in the region of the original transverse colon cancer perforation. The etiology therefore remains uncertain, but one may speculate that cell implantation occurred within the hernia sac at the initial emergency laparotomy.

Usefulness of (18)F-FDG PET/CT to Detect Metastatic Mucinous Adenocarcinoma Within an Inguinal Hernia

Metastatic mucinous adenocarcinoma in an inguinal hernia is a rare disease and the image findings of (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography (PET)/computed tomography (CT) are little known. Here, we introduce a 57-year-old man with metastatic mucinous adenocarcinoma in an inguinal hernia. On initial (18)F-FDG PET/CT, hypermetabolism was observed in mucinous adenocarcinoma of the cecum, and adenocarcinomas of the transverse and ascending colon, respectively. Follow-up (18)F-FDG PET/CT revealed newly developed multiple hypermetabolism in peritoneal seeding masses and nodules in the pelvic cavity and scrotum. Peritoneal carcinomatosis in the right pelvic side wall was extended to the incarcerated peritoneum and mesentery in the right inguinoscrotal hernia.(18)F-FDG PET/CT was useful to reveal unexpected peritoneal seeding within the inguinal hernia. Also, this case demonstrated that metastatic mucinous adenocarcinomas had variably intense FDG uptake.

Locally advanced carcinoma of the cecum presenting as a right inguinal hernia: a case report and review of the literature

Introduction

An inguinal hernia is a common surgical disease in elderly patients, but an association with intra-abdominal malignancies is rare.

Case presentation

We report a case of a 78-year-old Caucasian woman presenting with a right inguinal mass suspected to be an irreducible hernia. A computed tomography scan showed the presence of the cecum in her inguinal canal, with an irregular thickening of the cecal wall suggesting a neoplasm within the inguinal hernia. A colonoscopy was not completed owing to the huge involvement of the cecum into the hernia sac. A laparotomy was performed, at which time the cecum was herniated through her right inguinal canal and the cecal tumor had infiltrated her abdominal wall and femoral artery. A right inguinal incision was necessary for good vascular control and to carry out an en bloc resection of the tumor with the inguinal wall. A right colectomy was performed and the inguinal wall repaired. The postoperative course was uneventful and our patient received adjuvant radiochemotherapy.

Conclusion

We describe a rare case of a locally advanced cecal tumor presenting as a right inguinal hernia. Both diagnosis and surgical treatment in elderly patients represent a challenge for the surgeon in cases of aggressive tumors as reported in this paper.

Spermatic cord metastasis from colon cancer: report of a case

We herein report an extremely rare case of a solitary metastasis to the spermatic cord from colon cancer. A 71-year-old man who had undergone a right hemicolectomy for stage II cecal cancer 12 months prior, and who had not received adjuvant chemotherapy, was found to have a mass in the right groin region. Computed tomography (CT) revealed that the right spermatic cord was involved in a heterogeneously enhanced mass that measured 37 mm in diameter. A right high orchiectomy was performed. Histological examination of the resected tumor revealed well-differentiated adenocarcinoma compatible with a metastasis from colon cancer. The patient has been doing well, without recurrence, for 15 months postoperatively. To our knowledge, this is the 9th case of a solitary metastasis to the spermatic cord from colon cancer to be reported in the Japanese literature. The survival data of the collected cases suggest that resection of the solitary metastasis to the spermatic cord from colon cancer improves the patient prognosis.

Cardiac metastasis from colorectal cancer: A case report

The heart is an unusual site of metastasis from any malignancy. We report a case of cardiac metastasis from colorectal cancer. A 70-year-old woman was referred with a presumptive diagnosis of sigmoid colon cancer with cardiac myxoma. Two-dimensional echocardiography showed a 4 cm × 4.5 cm mobile mass on the lateral right atrial wall, and computed tomography revealed a low attenuated lobulating mass in the right atrium. The patient underwent anterior resection for sigmoid colon cancer (T4N2). Thereafter, she experienced progressive shortness of breath. Therefore, a cardiac operation was performed 2 wk after the colorectal operation. Histological examination revealed adenocarcinoma, which was identical to the primary lesion. Although two-dimensional echocardiography has become the diagnostic test of choice for detecting cardiac tumors, in patients with colorectal cancer showing a cardiac mass, further diagnostic evaluation such as a magnetic resonance imaging might be necessary.

Colonic carcinoma presenting as strangulated inguinal hernia: report of two cases and review of the literature

Inguinal hernia and colonic carcinoma are common surgical conditions, yet carcinoma of the colon occurring within an inguinal hernia sac is rare. Of 25 reported cases, only one was a perforated sigmoid colon carcinoma in an inguinal hernia. We report two cases of sigmoid colon carcinoma, one of which had locally perforated. Each presented within a strangulated inguinal hernia. Oncologically correct surgery in these patients presents a technical challenge.

Synchronous colonic carcinomas presenting as an inguinoscrotal hernial mass: a case report

Background

A carcinoma within a hernia in the groin is uncommon, with an incidence of less than 0.5 percent of all excised sacs. This article describes a case of synchronous colonic carcinomas, one of which presented as an inguinoscrotal mass.

Case presentation

A 69-year old man presented with a large, irreducible left inguinoscrotal hernia and symptoms of obstruction. On examination, there was an 8 cm palpable mass within the hernia sac. CT scan revealed small and proximal large bowel obstruction secondary to a large ingunoscrotal sac and synchronous colonic tumours of the transverse colon and the ascending colon. The former presented as an inguinoscrotal mass. Laparotomy revealed a large tumour mass arising from the transverse colon in the hernia sac. The procedure was followed by an extended right hemicolectomy, during which the second tumour in the ascending colon was also resected.

Conclusion

This case demonstrates a rare but interesting occurrence of primary transverse colon carcinoma presenting in a hernia sac, in conjunction with a synchronous tumour of the ascending colon. Prognosis is comparable to patients with a solitary tumour of similar pathological staging when the resection is curative. The presence of an inguinal hernia itself does not signify an increased risk of colorectal malignancy. However, in the presence of obstruction, incarceration, and weight loss, malignancy should be suspected. Thorough clinical examination, flexible sigmoidoscopy or radiographic evaluation is necessary preoperatively in such patients. Surgical resection, with or without adjuvant oncological treatment, should be performed as soon as possible, using established techniques with modifications according to involvement of local structures.

Primary peritoneal adenocarcinoma detected within a femoral hernia sac

We report on a case of primary peritoneal adenocarcinoma diagnosed after histological examination of a femoral hernia sac. To the best of our knowledge, this is the first reported case of primary peritoneal adenocarcinoma detected incidentally during repair of a femoral hernia.

Metastatic colon carcinoma found within an enterocele sac: a case report

The incidental finding of cancer in a hernial sac is rare, but there are many case reports in the literature. There has never been a report of carcinoma found in an enterocele sac. We present the case of a 77-year-old female with symptomatic pelvic organ prolapse who presented for reconstructive pelvic surgery and was found to have metastatic adenocarcinoma contained within an enterocele sac. Incidental diagnosis of asymptomatic carcinoma found on typically discarded tissue from surgical procedures is rare. However, routine pathologic review of all tissue removed from a patient may save a life if carcinoma is found early.