Intestinal inflammatory pseudotumor caused by taeniasis: Calcareous corpuscles as a diagnostic clue

Khin, Sann Sanda; Kitazawa, Riko; Htet, Kyaw Ko Ko; Htike, Hla Min; Yee, Than Than; Aung, Myint; Haraguchi, Ryuma; Kitazawa, Sohei

doi:10.1111/pin.12046

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…In cestodes, minerals produce CCs, the function of which has been the subject of scientific speculation, with some hypotheses proposed, one of which positing that the CCs represent approximately 10 % of the parasites' body weight and that they are to be commonly found in the parenchyma of many metacestodes and adult cestodes (61,62) . Another hypotheses is that CCs play an important role in detoxification (63) , as, because they are mainly produced in the absence of oxygen, they are thought to anaerobically buffer acids and serve as a reservoir for inorganic ions (64) . It should be noted that CCs are, in part, an excretory product that serves to remove metabolic waste from the body by passing through the tegument (62) .…”

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“…It should be noted that CCs are, in part, an excretory product that serves to remove metabolic waste from the body by passing through the tegument (62) . Calcareous corpuscles are composed of an organic base coupled with inorganic substances, such as potassium, sodium, magnesium, silicate, calcium, phosphate (61) , and sulfate in different cysticercus larvae and adult cestodes (64) . Their organic base includes DNA, RNA (65) , proteins (66,67) , and glycogen (46,68) .…”

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The effects of Pyrantel-Oxantel on the Dipylidium caninum tapeworm: An in vitro study

Millán-Orozco

Betancourt-Alonso³

et al. 2021

Rev. Mex. Cienc. Pecu.

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The present study aimed to evaluate, in vitro, the cestocidal effect of Pyrantel-Oxantel on the Dipylidium caninum tapeworm. Each intestine sample was obtained by means of a transversal incision of the abdominal area of each euthanized canine subject, individually dissected via longitudinal incision, and examined for the presence of D. caninum. An optical microscope was used to identify and verify proglottid morphology and viability based on its macroscopic appearance. The cestocidal effects of Pyrantel-Oxantel (75 mg pyrantel pamoate; 75 mg oxantel pamoate) were assessed in adult tapeworms (treated group, n= 21; control group, n= 21) placed on Petri dishes and incubated at 37 °C. One-hour post-incubation, the D. caninum cestodes treated with Pyrantel-Oxantel presented a 28 % decrease (P=0.001) in motility, which rose to a 52 % (P=0.0001) decrease by the end of the second hour. The control group (P=0.0001) presented 55.7 % motility for at least the first six hours of incubation and 4.2 % (P=0.001) motility by the end of the study, while 0 % motility was observed in the treated group by the end of the study. Pyrantel-Oxantel had a lethal effect (P=0.0001) on adult D. caninum, with 100 % mortality observed 6 h after in vitro post-incubation, while the control group presented 55.7 % viability after the same time period. In addition, Pyrantel-Oxantel reduced (P=0.001) tegument thickness by 42.5 % (10.24 ± 0.21 µm), while this was 17.81 ± 0.33 µm for the control group. The results of this study indicate that Pyrantel-Oxantel has a therapeutic effect on the presence of D. caninum, inducing both a reduction of the tegument thickness and increased mortality.

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The effects of Pyrantel-Oxantel on the Dipylidium caninum tapeworm: An in vitro study

Millán-Orozco

Betancourt-Alonso³

et al. 2021

Rev. Mex. Cienc. Pecu.

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The Increase of Exotic Zoonotic Helminth Infections

Gordon

McManus

Jones

et al. 2016

Advances in Parasitology

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A Case of Inflammatory Pseudotumor of the Mesentery that was Difficult to Differentiate from Solitary Lymph Node Recurrence after Laparoscopic Anterior Resection for Rectal Cancer

Ishida

Shinozaki

Terauchi

et al. 2016

Nihon Rinsho Geka Gakkai Zasshi (J Jpn Surg Assoc)

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The patient was a 52-year-old woman who had undergone low anterior resection with D3 lymph node dissection for advanced rectal cancer. The final histopathological diagnosis was advanced lower rectal cancer, pT4a N0 M0, pStage II. An abdominal ultrasound examination performed 10 months after the surgery revealed a tumor measuring 33 mm in diameter in front of the left common iliac artery. FDG-PET showed increased uptake in the tumor. Solitary lymph node metastasis from the rectal cancer was suspected. Because abdominal CT and PET-CT showed no evidence of any other metastases, a laparotomy was performed. The nodule was located at the root of the superior rectal artery that had been resected at the initial surgery ; therefore, it was considered as recurrence in #252 lymph node. Histopathological examination of the resected specimen, which included two laparoscopic clips, however, revealed inflammatory changes and elastic fibers with no malignant cells. Thus, the tumor was diagnosed as an inflammatory pseudotumor. The patient has been followed-up for one and a half years, and has shown no evidence of recurrence.

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Intestinal inflammatory pseudotumor caused by taeniasis: Calcareous corpuscles as a diagnostic clue

Cited by 3 publications

References 7 publications

The effects of Pyrantel-Oxantel on the Dipylidium caninum tapeworm: An in vitro study

The effects of Pyrantel-Oxantel on the Dipylidium caninum tapeworm: An in vitro study

The Increase of Exotic Zoonotic Helminth Infections

A Case of Inflammatory Pseudotumor of the Mesentery that was Difficult to Differentiate from Solitary Lymph Node Recurrence after Laparoscopic Anterior Resection for Rectal Cancer

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