Page 42 - TD-2-3
P. 42

Tumor Discovery                                                       Surgical implantation of malignant cells



            to match the incidence of abdominal scar recurrences in   on surrounding organs), in which eight of 15 reports had
            open colectomy .                                   been published between 2004 and 2009. Eleven out of
                        [25]
                                                               16 patients had a past history of surgery, which involved
            4.7. Cutaneous metastasis                          electric morcellator in six cases and some unspecified
            Cutaneous metastasis of internal malignancy is a rare   form of morcellation in the other five cases. The majority
                                                        [44]
            event with incidence rates ranging from 1.0% to 4.6% .   of the parasitic myomas were found in the pelvis but three
            Metastasis usually develops at the umbilicus, in surgical   were located in the upper right quadrant near the liver
            scars, at laparoscopic port sites, and near metastatic lymph   and gallbladder. Nezhat and Kho also recorded at least five
            nodes. However, the most common source of dermal   reports of leiomyomatosis peritonealis disseminata (LPD)
            metastasis in the face and neck is oral cavity cancer .   occurring in association with laparoscopic myomectomy
                                                        [45]
            A retrospective study on patients who had been subjected   and the use of morcellators. LPD is a rare benign condition
            to excision of primary tumor and neck dissection and   characterized  by  multiple  smooth  muscle  myofibroblastic
            then developed skin metastasis revealed that previous   and fibroblastic nodules on the peritoneal surfaces of pelvic
            skin involvement, extracapsular extension of metastatic   and abdominal cavities on the surface of the uterus, intestines
            nodes, and indication for chemotherapy are predictors of   and abdominal walls. Based on the findings of these reports,
            dermal metastasis, irrespective of stage . These cutaneous   the parasitic myomas are christened “iatrogenic myomas.”
                                          [46]
                                                                                        [53]
            metastasis are painless, solitary, or multiple nodules   The Clinical Practice Guidelines  reviewed by Gynecology
            separate from the overlying epidermis and distinct from   Guideline Management and Oversight Committees and
            direct skin invasion . Other cutaneous metastasis can   the Executive of the Society of Gynaecologic Oncology of
                            [47]
            be divided into metastatic umbilical tumors or Sister   Canada (GOC) recommend that:
            Mary Joseph nodules (SJNs) and non-SJN metastasis. The   (1)  Morcellation is contraindicated in established cancer,
            non-SJN metastases are further subdivided into those   pre-cancerous lesions, or suspected cancer.
            occurring due to  surgery,  injury, or  lymphadenopathy.   (2)  Patients should be counseled about the risks (malignant
            In non-SJNs, direct implantation, hematogenous spread,   and non-malignant), benefits, and alternatives as part
            and extranodal extension play a key role. Thereafter, the   of informed consent.
            tumor cells hinge on the factors involved in wound healing   (3)  Morcellation should be avoided in hereditary cancer
            and inflammation for proliferation . An  unusual  case   syndromes that predispose to uterine malignancies.
                                         [44]
            of metastasis of adenocarcinoma of the colon to the skin   4.9. Present-day beliefs and practices
            of the right groin, scrotum, and perineum presenting as
            erythema, papules, and fake blisters has been reported ,   Early in 1937, an editorial published in The New England
                                                        [48]
            stating that Koebner phenomena maybe involved.     Journal of Medicine made a mention regarding the search
                                                               for tumor cells on surgical knives used for the surgery
            4.8. Iatrogenic myoma                              of malignant tumors . This had then been reiterated by
                                                                                [8]
                                                                                [20]
            When uterine leiomyomas (“fibroids”) are treated with   Curran et al. in 1996 . A prospective study of the gloves
            laparoscopic myomectomy or sub-total hysterectomy, the   and instruments used in head-and-neck cancer surgeries
            tumor must be cut into pieces or morcellated to enable   found cells in all washings.
            extraction. If a power morcellator, which cuts the tumor into   Yu  et  al. attempted to study each surgical supply
            cores of 1 cm diameter, is used, there will be intraperitoneal   separately in patients undergoing D2 resection for gastric
            dispersal of microscopic tumor fragments. The first few   cancers . Surgical supplies were divided into five groups:
                                                                     [54]
            cases regarding this have been reported in 2003  and   (i) Surgical instruments; (ii) surgical gloves of the surgeon,
                                                    [49]
            2005 , documenting intraperitoneal dissemination of   first assistant, and second assistant; (iii) surgical gloves
                [50]
            endometrial tissue visualized by means of post-operative   and gauze used by the scrub nurse; (iv) gauze used to clear
            histopathology. Seidman  et al.  investigated  1091   operative field; and (v) stapler devices. The immersion
                                        [51]
            instances of morcellation and found leiomyoma variants   fluid was centrifuged and the precipitate was cultured in
            or atypical and malignant smooth muscle tumors in 1.2%   20% bovine fetal serum with 5% carbon dioxide. Although
            cases, including endometrial stromal sarcoma, cellular   exfoliated cells were found in all five groups of supplies,
            leiomyoma, atypical leiomyoma, smooth muscle tumor   they were most frequent in the gloves and gauze used by
            of  uncertain  potential  (STUMP),  and  leiomyosarcoma.   the scrub nurse and the gauze used to clear the operative
            Moreover, they documented disseminated disease in   field. Many authors have recommended that surgical
            64.3% of all tumors. Nezhat and Kho  reviewed reports   instruments and drapes be changed when moving from
                                          [52]
            of  parasitic  myomas  (pedunculated  myomas  that have   one anatomical field to another, for example, from site of
            lost their attachment to the uterus and become parasitic   resection to site of harvest of flap. They also suggested that


            Volume 2 Issue 3 (2023)                         6                          https://doi.org/10.36922/td.1411
   37   38   39   40   41   42   43   44   45   46   47