A rare case of an aldosterone secreting metastatic adrenocortical carcinoma and papillary thyroid carcinoma in a 31-year-old male

Stephen M. Wanta,1 Marina Basina,2 Steven D. Chang,2 Daniel T. Chang,2 James M. Ford,2 Ralph Greco,2 Kerry Kingham,2 Robert E. Merritt,2 Pamela L. Kunz2

1Georgetown University School of Medicine, Washington, DC; 2Stanford University School of Medicine, Stanford, CA, USA

Abstract

We report a rare synchronous presentation of adrenocortical carcinoma (ACC) and papil- lary thyroid carcinoma (PTC). A 31-year-old male first presented with a large left adrenal mass that was identified during the workup for refractory hypertension due to hyperaldostero- nism. The mass was removed surgically with pathology showing ACC. The patient was then treated with adjuvant radiation therapy and mitotane chemotherapy. Four months post ACC resection, metastatic ACC to the right upper lung and PTC in the left lobe of the thy- roid were found in surveillance imaging. He subsequently developed pulmonary, contralat- eral adrenal and brain metastases from his ACC. Li Fraumeni syndrome and Multiple Endocrine Neoplasia Type I (MEN I) were con- sidered, but testing of both P53 and menin genes showed no mutation. We also performed a review of the literature and found three sim- ilar cases, however gene mutation analysis was not performed ..

Introduction

In this report we review the case of a 31- year-old male diagnosed with an adrenocorti- cal carcinoma (ACC) and a papillary thyroid carcinoma (PTC). Adrenocortical carcinomas are an extremely rare type of cancer, with an incidence of less than 0.2 per 100,000 in the U.S.1 Thyroid cancer is more common with an incidence rate of 11.0 per 100,000 per year in the U.S .; papillary carcinoma accounts for approximately 85% of all thyroid cancers and is 3 times more common in women than men.2 Given the presentation of these rare tumors together in a young patient, their appearance is suggestive of a possible hereditary link. Of

the known syndromes caused by a hereditary predisposition to multiple endocrine tumors, none specifically include the occurrence of PTC with ACC.3 Of the hereditary conditions that present with the tumors in our case, Multiple Endocrine Neoplasia (MEN) Type 1 is known to present with more than 20 possible combinations of endocrine and non-endocrine tumors, including ACC but not PTC.4 Addi- tionally, MEN Type 2 syndromes involve pheochromocytomas and medullary thyroid cancer, but do not traditionally involve PTC or ACC in the established syndrome.3 Adreno- cortical carcinomas are also known to appear in Li-Fraumeni syndrome (LFS), which is asso- ciated with an autosomal dominant mutation in the TP53 gene that is the source of tumors at an early age.5 There are few case reports in the literature that present with ACC and PTC. The available reports attribute the concomi- tant appearance of the tumors to coincidence, but do not discount a potential genetic or hereditary link.6-8 Thus, this case represents an atypical combination of endocrine tumors with a potential hereditary component.

Case Report

A 31-year-old, previously healthy, white male presented to the emergency department with a nine-month history of intermittent fevers, headaches and muscle aches occurring in iso- lated episodes approximately a month apart, a 5-day history of back pain, and acute onset fevers to 38.9º Celsius. Past medical history included gastroesophageal reflux disease (GERD), controlled with lansoprazole. He was taking no other medications prior to his initial presentation. He was working as a construction supervisor and had smoked half of a pack of cig- arettes per day for the past 12 years. Significant family history included a father with hyperten- sion and congestive heart failure, paternal grandmother with leukemia, paternal aunt with non-Hodgkin’s lymphoma, maternal uncle with multiple myeloma, and a maternal great grand- mother with metastatic colon cancer. A physical exam revealed severe hypertension (210/110), no palpable abdominal masses and was other- wise unremarkable. He was prescribed atenolol (50 mg daily), which initially controlled the high blood pressure.

However, the hypertension proved refractory to treatment for four months, even while tak- ing three anti-hypertensive drugs simultane- ously (atenolol, valsartan and amlodipine). A more thorough work-up was initiated. An abdominal ultrasound revealed a large left adrenal mass (Figure 1A). A follow-up CT scan confirmed a 14.5×14.4×9.8cm left adrenal mass displacing the left superior pole of the kidney. It was suspected that the severe hyper-

Correspondence: Pamela Kunz, Stanford Cancer Institute, Department of Medicine/Division of Oncology, 875 Blake Wilbur Drive, Stanford, CA 94305-5826, USA.

Tel. +1.650.725.9057 - Fax: +1.650.498.5353. E-mail: pkunz@stanford.edu

Key words: adrenocortical carcinoma, papillary thyroid carcinoma, hereditary cancer syndrome.

Received for publication: 8 August 2011.

Accepted for publication: 13 September 2011.

This work is licensed under a Creative Commons Attribution NonCommercial 3.0 License (CC BY- NC 3.0).

@Copyright S.M. Wanta et al., 2011 Licensee PAGEPress, Italy Rare Tumors 2011; 3:e45 doi:10.4081/rt.2011.e45

tension was secondary to a hormone-secreting tumor, therefore cortisol and aldosterone lev- els were checked prior to surgical resection of the mass. Urine metanephrine, normeta- nephrine and serum levels were normal; aldos- terone levels were slightly elevated, while the aldosterone/renin activity ratio was above nor- mal limits at 112.5 (ref. ≤25.0), indicating hyperaldosteronism.

Surgical resection of the adrenal mass was performed; pathology revealed a 19.5 cm adrenocortical carcinoma with large vessel invasion. The tumor was less than 1 mm from the resection margin, but was surrounded by a thin fibrous capsule and demonstrated no definitive evidence of capsular extension or invasion. The tumor was staged as pT2 with no lymph nodes analyzed. The patient recovered from surgery with no major complications. Post-operative CT scan revealed a left pleural effusion, but was negative for metastatic dis- ease. Mild hypertension persisted, managed with 100 mg atenolol. Within two months fol- lowing surgery, aldosterone levels returned to normal.

Six weeks following the operation, the patient began adjuvant radiation concurrent with mitotane. He received a total dose of 54 Gy at 2 Gy/fraction given over 5.5 weeks to the resection bed and preoperative tumor vol- ume. Following completion of radiation, he continued on single agent mitotane chemo- therapy.

Four months following the original adrena- lectomy, a surveillance CT scan revealed a 1 cm nodule in the right upper lung. A subsequent PETCT showed an FDG avid nodule (SUV 3.7) in the right upper lung and a 4 mm FDG avid left thyroid nodule (SUV 13.7) (Figure 1B, 1C). The FDG avid lung nodule was thought to rep- resent metastatic disease (ACC vs thyroid). The patient underwent thoracoscopic right upper and middle pulmonary lobe wedge resec-

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tions; pathology showed a 1.5 cm tumor consis- tent with metastatic ACC with a negative resection margin. Additionally, an ultrasound guided fine needle aspiration (FNA) of the thy- roid nodule was performed; pathology showed PTC. Six months following the original adrena- lectomy and 2 months following the thoraco- scopic pulmonary wedge resection and thyroid FNA, a short interval surveillance PETCT scan showed no evidence of metastatic disease but re-confirmed an FDG avid left thyroid nodule. Given absence of further metastatic disease, the patient underwent a total thyroidectomy; pathology revealed multifocal PTC with posi- tive margins. The patient was started on syn- throid and I-131 radioactive iodine remnant ablation was performed. The patient contin- ued on single agent mitotane for a total of 8 months (6 weeks concurrent with radiation and 6 months as a single agent). The maxi- mum tolerated dose was 1500 mg daily; thera- peutic drug levels of 10-14 mg/L were not reached due to GI side effects. The medica- tion was stopped given rising creatinine and concerns for renal toxicity.

Eleven months following his original adrenalectomy and 7 months following the tho- racoscopic pulmonary wedge resection, the patient underwent a surveillance PETCT scan which demonstrated a new 1 cm nodule in the right upper lobe (SUV 5.2). The patient then underwent a redo thoracoscopic right upper lobe wedge resection; pathology was consis- tent with fibrotic scar with no evidence of car- cinoma.

Eighteen months following his original adrenalectomy and 14 months following the original pulmonary lobe wedge resection, another surveillance PETCT scan demonstrat- ed a new 4.5x5.3×4.7 cm right upper lobe mass (SUV 8.3) a hypermetabolic 1.2 cm pleural based mass, and a hypermetabolic nodular right adrenal gland. He underwent a right tho- racoscopic converted to open thoracotomy for right upper lobectomy; pathology revealed metastatic ACC 5 cm with negative margins, in addition to a pleural-based metastasis. A post- operative PETCT unfortunately showed rapid disease progression in the right hilum and right adrenal gland. The patient was started on systemic chemotherapy with 5-fluorouracil (5FU) and adriamycin. After one cycle of 5FU and adriamycin, the patient developed non- focal neurologic changes. A brain MRI showed multiple right parietal small lobulated parenchymal brain enhancing lesions with surrounding vasogenic edema (Figure 1D); there were additionally several small left tem- poral occipital metastases. A craniotomy and resection of parietal lesions were performed; pathology revealed metastatic adrenocortical carcinoma. He subsequently underwent stereotactic radiosurgery to the resection bed. The patient was then started on temozolomide

and capecitabine chemotherapy. In a matter of weeks, the patient developed recurrent brain metastases and additional metastases to bone and multimple soft tissue sites. Despite whole brain radiotherapy the patient had progessive disease, a worsening performance status and died, two years from his original diagnosis.

Genetic testing was pursued to rule out known hereditary conditions that could poten- tially cause the combination of ACC and PTC, specifically LFS and MEN I. Gene mutation analysis revealed a wild-type p53 gene. Analysis of the menin gene also revealed no mutation. No further genetic testing was obtained. Germline DNA was stored for future research based whole genome sequencing.

Literature review

We performed a Medline search for cases presenting with adrenocortical carcinomas or adenomas and papillary thyroid carcinomas. We found three cases that matched closely with our patient (Table 1).

Fukushima et al.6 reported a 45-year-old female with a virilizing adrenocortical adeno- ma, a papillary thyroid carcinoma, and a benign pancreatic nodule. The authors consid- ered the concomitant occurrence of multiple endocrine lesions to be coincidental given the lack of family history. However, the possibility for MEN was considered, yet no genetic testing was performed. Casula et al.7 reported the case of a 39-year-old male who was found to have a

Figure 1. A) Left adrenal mass, MRI; B) Right upper lobe pulmonary nodule, PETCT Scan; C) Thyroid nodule, PETCT Scan; D) R parietal brain metastases and associated edema, MRI with contrast.

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Table 1. Literature review of case reports containing papillary thyroid carcinoma and adrenal lesions.
AuthorAgeSexAdrenal pathologyThyroid pathologyOther tumorsSymptomsRecurrence
Fukushima645FAdenomaPTCPancreas noduleCushing's syndromeNo
Casula739MAdenomaPTCNone aldosteroneElevatedNo
Noordzig864FCarcinomaPTCLiver metastases from ACCNoneNo

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locally advanced papillary thyroid carcinoma and an aldosterone-secreting adrenocortical adenoma. Again, the association of the tumors was ruled to be most likely coincidental, how- ever MEN was considered despite no family history or genetic testing. Noordzig, et al.8 described four cases where a thyroid neoplasm was discovered by PETCT in the course of care for another primary lesion. One case was that of a 64-year-old woman initially found to have an adrenocortical carcinoma, who also had a papillary thyroid carcinoma discovered by PETCT imaging and biopsy. Again, genetic testing was not performed.

Discussion

In summary, we reported the case of a 31- year-old male who initially presented with severe hypertension and was found to have an aldosterone-secreting metastatic adrenocorti- cal carcinoma. After resection of the ACC, the patient was found to have a localized PTC and subsequently developed metastatic ACC to the lungs and brain. Of primary concern for this case was the appearance of two endocrine tumors within a short period of time and the possibility of an underlying hereditary cancer syndrome. Both tumors are relatively rare in the general population, and their appearance together seemed suggestive of a hereditary component, however tests for LFS and MEN I both returned negative.

Adrenocortical carcinomas are rare and typ- ically have a poor prognosis. There are varying reports on the percentage of ACCs that are functioning, with some papers indicating as many as 79% of ACCs as functioning - produc- ing one or more adrenal hormones.9 Most func- tioning ACCs produce glucocorticoids. ACC often presents with hypertension; primary hyperaldosteronism is less common. The most effective treatment for ACC is complete resec- tion ,10 which was performed in the case of our patient. In cases of incomplete resection or non-operated tumors, survival is often less than one year.11-13 Survival varies based on extent of disease, with Stage IV disease show- ing a five-year survival of 22%.12

Studies of adjuvant treatment following resection of ACCs demonstrate mixed results. A retrospective study by Terzolo et al. included 56 centers and 177 patients with ACC in Germany and Italy showed recurrence free- survival was extended to 42 months in the group receiving adjuvant mitotane chemother- apy as opposed to 10 months in the control groups.14 Other retrospective studies of adju- vant mitotane therapy have shown no advan- tage over surgical resection alone.15,16 However, these studies were primarily conducted at sin- gle centers and did not contain as many

patients compared to the Terzolo study. There is an ongoing prospective phase III study (ADI- UVO study) of patients with ACC comparing adjuvant mitotane vs. follow-up that will hope- fully offer greater clarity on the benefits of adjuvant mitotane therapy (NCT00777244).

The role of adjuvant radiation is also ill- defined, but studies have suggested that the risk of local recurrence, particularly with larg- er tumors, can be quite high. In a matched-pair analysis by Fassnacht et al., the investigators reported a 79% local control in 14 patients who received adjuvant radiotherapy compared with 12% (P<0.01) in 14 patients matched for stage, resection status, the use of adjuvant mitotane, and tumor size.17 Sabolch et al. demonstrated 4.7 times risk of local failure (P=0.03) in 58 patients treated for primary disease and recur- rent disease who did not receive adjuvant radiotherapy.18 Recommendations have been proposed by the investigators from University Hospital Wuerzberg are for adjuvant radiation for tumors ≥8 cm or for tumors with question- able margin status.19 A minimum dose of 40 Gy should be given and doses between 50-60 Gy should be considered using standard fraction- ation. Radiotherapy was given in this patient due to the large size of the tumor and the very close margin.

Papillary thyroid carcinomas are much less aggressive than ACC and therefore have a bet- ter prognosis post-resection. The primary treatment for PTC is surgical resection. Since our patient had multifocal disease, a total thy- roidectomy was performed to reduce risk of recurrence. About 15% of patients with PTC will experience relapse following surgical resection of the thyroid and approximately 5% of all PTC cases are lethal.20 Cause specific survival for patients undergoing total thy- roidectomy is reported at 100% in some studies for patients with less advanced disease.21 However, the combined presentation of PTC and ACC complicates the prognosis for our patient.

Most ACCs and PTCs are sporadic, however, given the occurrence of two different endo- crine neoplasms within a short period of time and the young age of our patient, the possibil- ity of a hereditary cancer syndrome was con- sidered. The most likely hereditary syndromes for this case associated with ACC were MEN (mutation in menin), and LFS (mutation in the TP53). While no hereditary cancer syn- dromes were identified in this case, this does not preclude the possibility of an untested or unknown disorder.

References

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approaches for endocrine malignancies. Pharmacol Ther 2009;123:117-41.

2. Howlader N, Noone A, Krapcho M, et al. SEER Cancer Statistics Review, 1975-2008, National Cancer Institute. Bethesda, MD, http://seer.cancer.gov/csr/1975_2008/, based on November 2010 SEER data sub- mission, posted to the SEER web site. 2011.

3. Offit K. Genetic Factors: Hereditary Cancer Predispostion Syndromes. Abeloff’s Clin- ical Oncology 4th Ed: Churchill Livingston; 2008.

4. Falchetti A, Marini F, Luzi E, et al. Multiple endocrine neoplasia type 1 (MEN1): not only inherited endocrine tumors. Genet Med 2009;11:825-35.

5. Ford JM, Kastan M. DNA Damage Response Pathways and Cancer. Abeloff’s Clinical Oncology 4th Ed. Philadelphia, PA: Churchill Livingston; 2008.

6. Fukushima A, Okada Y, Tanikawa T, et al. Virilizing adrenocortical adenoma with Cushing’s syndrome, thyroid papillary car- cinoma and hypergastrinemia in a middle- aged woman. Endocr J 2003;50:179-87.

7. Casula G, Angioy F, Sirigu P, Sirigu F. Carcinoma of the thyroid gland, adenoma of the adrenal cortex and peptic ulcer: an unreported association. Tumori 1976;62: 665-72.

8. Noordzij MJ, de Heide LJ, Links TP, et al. [Four patients with incidentalomas of the thyroid discovered on 18-fluoro-deoxyglu- cose positron-emission tomography (FDG- PET)]. Ned Tijdschr Geneesk 2007;151: 2337-41.

9 Roman S. Adrenocortical carcinoma. Curr Opin Oncol 2006;18:36-42.

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11. Borrelli D, Bergamini C, Borrelli A, et al. [Surgical strategy in the treatment of adrenal cortex cancer. Expanded and repeated interventions]. Ann Ital Chir 2003;74:311-7.

12. Icard P, Chapuis Y, Andreassian B, et al. Adrenocortical carcinoma in surgically treated patients: a retrospective study on 156 cases by the French Association of Endocrine Surgery. Surgery 1992;112:972- 9; discussion 9-80.

13. Lee JE, Berger DH, el-Naggar AK, et al. Surgical management, DNA content, and patient survival in adrenal cortical carci- noma. Surgery 1995;118:1090-8.

14. Terzolo M, Angeli A, Fassnacht M, et al. Adjuvant mitotane treatment for adreno- cortical carcinoma. N Engl J Med 2007;356: 2372-80.

15. Barzon L, Fallo F, Sonino N, et al. Adrenocortical carcinoma: experience in 45 patients. Oncology 1997;54:490-6.

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16. Vassilopoulou-Sellin R, Guinee VF, Klein MJ, et al. Impact of adjuvant mitotane on the clinical course of patients with adreno- cortical cancer. Cancer 1993;71:3119-23.

17. Fassnacht M, Hahner S, Polat B, et al. Efficacy of adjuvant radiotherapy of the tumor bed on local recurrence of adreno- cortical carcinoma. J Clin Endocrinol

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18. Sabolch A, Feng M, Griffith K, et al. Adjuvant and definitive radiotherapy for adrenocortical carcinoma. Int J Radiat Oncol Biol Phys 2011;80:1477-84.

19. Polat B, Fassnacht M, Pfreundner L, et al. Radiotherapy in adrenocortical carcinoma. Cancer 2009;115:2816-23.

20. Kronenberg H. Papillary Thyroid Cancer. Williams Textbook of Endocrinology, 11th Ed. Philadelpia, PA: Saunders; 2008.

21. Palme CE, Waseem Z, Raza SN, et al. Management and outcome of recurrent well-differentiated thyroid carcinoma. Arch Otolaryngol Head Neck Surg 2004; 130:819-24.

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Small intestine perforation due to metastatic uterine cervix interdigitating dendritic cell sarcoma: a rare manifestation of a rare disease

Ahmad Mahamid,1 Ricardo Alfici,1 Anton Troitsa,1 Shmuel Anderman,2 Gabriel Groisman,3 Abdel-Rauf Zeina4

1Department of General Surgery; 2Department of Obstetrics, Gynecology and Reproductive Science; 3Department of Pathology and 4Department of Radiology, Hillel Yaffe Medical Center, Hadera, Israel. Affiliated with the Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel

Abstract

Interdigitating Dendritic Cell Sarcoma (IDCS) is an infrequent dendritic cell tumor which mainly affects the lymphatic system. Intestinal metastasis from uterine IDCS is extremely rare. Here we report a case of a 76- year-old female presenting with vaginal bleed- ing and acute abdomen. The final diagnosis revealed a small bowel perforation due to metastatic involvement from uterine cervix IDCS. In this paper, we report the clinical man- ifestation, computed tomography and histopathological findings helpful for the accu- rate diagnosis of this rare tumor.

Introduction

Interdigitating Dendritic Cell Sarcoma (IDCS) is an extremely rare neoplasm. According to the World Health Organization (WHO) dendritic cell neoplasms are classified into five groups: Langerhans Cell Histiocytosis (LCH), Langerhans Cell Sarcoma (LCS), Interdigitating Dendritic cell Sarcoma/Tumor (IDCS/T), Follicular Dendritic Cell Sarcoma/Tumor (FDCS/T), and Dendritic Cell Sarcoma.1 Dendritic cells are antigen-present- ing cells and play crucial role in the immune system, especially in generating and regulat- ing the germinal cell reaction. The subtype Interdigitating Dendritic Cells stimulate T lym- phocytes and are found in the T cell areas of the lymphoid tissue. IDCS mainly occurs in the lymph nodes; however extranodal involve- ments such as nasopharynx, skin, testis, ovary, urinary bladder, tonsils, small intestine, and pleura have been previously described.2 Here we report an uncommon case of extranodal

IDCS primarily affecting the uterine cervix, associated with metastatic involvement of the small intestine which presented with vaginal bleeding and acute abdomen due to bowel per- foration.

Case Report

A 76-year-old female presented to our emer- gency room with vaginal bleeding, epigastric abdominal pain and constipation. The vaginal bleeding appeared 3 weeks before the admis- sion. Medical history was significant for essen- tial hypertension, diabetes mellitus controlled with oral drugs, cerebrovascular accident and cholecystectomy. Family history was negative for malignancy. At presentation, the patient had unremarkable vital signs. Her laboratory tests were normal except for anemia with 10.8 g/dl hemoglobin. Her physical examination revealed a soft, non-tender abdomen without a palpable abdominal mass. A small umbilical hernia without incarcerated content was also detected. There was no evidence of masses, fecal impaction, blood or melena at the digital rectal examination. Gynecologic examination detected an irregular mass originating from the uterine cervix and obliterating the upper vagina. The patient was admitted to the gyne- cology department for further evaluation.

For anatomical information and staging, thoracic, abdominal and pelvic CT scan was performed. The CT scan of thorax was normal. Abdominal CT revealed a 25×20 mm homoge- neous soft tissue mass in close proximity to a small bowel loop (jejunum) (Figure 1). In addi- tion, a large heterogeneous solid mass in the uterine cervix and vagina was noted (Figure 2). There was no evidence of ascites, intraperi- toneal dissemination or lymphadenopathy.

During the hospitalization the patient under went a colposcopy and multiple biopsies were taken from the distal cervix and proximal vagi- na, area involved with the mass. Neoplastic markers including: AFP-B, CEA-B, CA 153-B, CA 125-B and CA19.9 were within the normal limits. While waiting for the pathologic results, she was discharged with follow-up in the out- patient clinic. Four days later, and before get- ting the pathologic results the patient again presented in the emergency room with acute severe generalized abdominal pain, that was more prominent in the center and upper abdomen. She had fever, tachycardia (105 beats per minute) and normal blood pressure. Her abdominal examination revealed general- ized tenderness, rigidity, guarding and rebound. Her laboratory tests were within the normal limits except for leukocytosis and neu- trophilia. After adequate fluid resuscitation she was taken to the operation room for explo- rative laparotomy. The operation findings were

Correspondence: Abdel-Rauf Zeina, Department of Radiology, Hillel Yaffe Medical Center, P.O.B. 169, Hadera 38100, Israel. Tel. + 972.4.6304621 - Fax: +972.4.6304884. E-mail: raufzeina3@hotmail.com raufzeina@yahoo.com

Key words: interdigitatin dendritic cell sarcoma, dendritic cell neoplasm, small intestine, uterine cervix.

Contributions: AM, case report, literature research and manuscript writing; RA, AT, SA, operations performing, manuscript final approval; GG, pathology pictures; ARZ, manu- script design, data acquisition and interpretation, manuscript critical revision, manuscript final approval.

Conflict of interest: the authors report no con- flicts of interest.

Received for publication: 17 June 2011. Accepted for publication: 25 September 2011.

This work is licensed under a Creative Commons Attribution NonCommercial 3.0 License (CC BY- NC 3.0).

@Copyright A. Mahamid et al., 2011 Licensee PAGEPress, Italy Rare Tumors 2011; 3:e46 doi:10.4081/rt.2011.e46

pus in the peritoneal cavity, perforated small intestine neoplastic mass about 70 cm distally to the Treitz ligament, small uterine, tumor involving the cervix without any dissemination to the abdominal cavity. She underwent small bowel resection with about 10 cm macroscopic free margins, and hand-sewing double layer anastomosis was preformed. After adequate irrigation of the peritoneal cavity the abdomen closed by anatomical layers. Pathological examination showed homogeneous white tis- sue that infiltrates the bowel wall and forms two nodular masses within the mesentery. Microscopic examination showed a poorly dif- ferentiated malignant neoplasm with variably epithelioid or spindle cytomorphology (Figure 3). The tumor cells have elongated tapering or else plump vesicular nuclei and indistinct pale- ly eosinophilic cytoplasm. The biopsy from the region of the cervix is substantially more pleo- morphic than the one in the small bowel and there is extensive necrosis. Immunostains performed on the small bowel mass showed focally strong positivity for keratin CAM 5.2 and also pan-keratin, while CD34, SMA, LCA, CD45Ro, CD163 MART-1 and desmin are nega- tive with only some weak focal and likely non- specific positivity for MITF. Furthermore, the S-100 stain highlights the fact that many of the neoplastic cells have elongated dendritic cyto- plasmic processes (an appearance which

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