scholarly journals Giant Muscle Invasive Dermatofibroma Clinically Mimicking a Malignant Tumor

2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Hideyuki Kinoshita ◽  
Takeshi Ishii ◽  
Hiroto Kamoda ◽  
Toshinori Tsukanishi ◽  
Sumihisa Orita ◽  
...  

Dermatofibromas are common benign fibrohistiocytic lesions, usually appearing as slow growing firm dermal nodules with a predilection for the extremities (mostly the lower legs). They are found mostly in middle-aged women and are usually smaller than 2 cm in diameter. Giant dermatofibromas exceeding 5 cm in diameter are rare. In recent years, reports have suggested a relationship between the primary size of dermatofibromas and rates of local recurrence and metastases after surgery. This relationship is however debated. The present report describes the case of a giant muscle invasive tumor in a 51-year-old female patient who presented with a large ulcerated mass in the right upper arm. The tumor appeared clinically malignant, measuring approximately 12 cm × 6 cm in size, with ulceration and invasion of surrounding muscle. Wide resection of the tumor was performed with myocutaneous flap-plasty. Histopathological examination showed evidence of a dermatofibroma. No recurrence, metastases, or other complications were noted at 5 years after surgery. The present case demonstrates that although dermatofibromas are essentially benign, they may present with atypical features including large size, ulceration, and muscle invasion, clinically mimicking malignant tumors.

Medicina ◽  
2021 ◽  
Vol 57 (3) ◽  
pp. 220
Author(s):  
Rasha Taha Abouelkheir ◽  
Abdalla Abdelhamid ◽  
Mohamed Abou El-Ghar ◽  
Tarek El-Diasty

The evolution in imaging has had an increasing role in the diagnosis, staging and follow up of bladder cancer. Conventional cystoscopy is crucial in the diagnosis of bladder cancer. However, a cystoscopic procedure cannot always depict carcinoma in situ (CIS) or differentiate benign from malignant tumors prior to biopsy. This review will discuss the standard application, novel imaging modalities and their additive role in patients with bladder cancer. Staging can be performed with CT, but distinguishing between T1 and T2 BCa (bladder cancer) cannot be assessed. MRI can distinguish muscle-invasive from non-muscle-invasive tumors with accurate local staging. Vesical Imaging-Reporting and Data System (VI-RADS) score is a new diagnostic modality used for the prediction of tumor aggressiveness and therapeutic response. Bone scintigraphy is recommended in patients with muscle-invasive BCa with suspected bony metastases. CT shows low sensitivity for nodal staging; however, PET (Positron Emission Tomography)/CT is superior and highly recommended for restaging and determining therapeutic effect. PET/MRI is a new imaging technique in bladder cancer imaging and its role is promising. Texture analysis has shown significant steps in discriminating low-grade from high-grade bladder cancer. Radiomics could be a reliable method for quantitative assessment of the muscle invasion of bladder cancer.


2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Shingo Morinaga ◽  
Shigeyuki Aoki ◽  
Motoi Tobiume ◽  
Genya Nishikawa ◽  
Hiroyuki Muramatsu ◽  
...  

Abstract Background Only 14 cases of leiomyoma with ureteral origin have been reported previously. Such primary leiomyomas often present as hydronephrosis, making the diagnosis difficult. Radical nephroureterectomy is often performed because of the possible diagnosis of a malignant tumor. We report the 15th case of primary leiomyoma with a ureteral origin. Case presentation A 51-year-old Japanese man presented with a chief complaint of asymptomatic gross hematuria with a history of hypertension. Enhanced computed tomography showed a tumor at the upper part of the right ureter that appeared to be the cause of hydronephrosis and contracted kidney; no retroperitoneal lymphadenopathy and distal metastasis were observed. A well-defined 20-mm (diameter) defect was identified at the upper of the right ureter on retrograde pyelogram with no bladder cancer on cystoscopy. Urine cytology and right divided renal urine cytology findings were negative. Laparoscopic nephroureterectomy was performed, and the extracted tumor measured 20 × 13 mm. Histopathological examination revealed primary leiomyoma with no recurrence 16 months after the operation. Conclusions Preoperative examination with the latest available ureteroscopic technology can help preserve renal function in the case of benign tumors by enabling preoperative ureteroscopic biopsy or intraoperative rapid resection. Moreover, nephroureterectomy is recommended in the case of preoperative suspicion of ureteral malignant tumors.


2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Rafael Parra-Medina ◽  
José Ismael Guio ◽  
Patricia López-Correa

Castleman’s disease (CD) is a rare lymphoproliferative disorder of unknown etiology. It typically occurs in adulthood but it may also develop in childhood. Clinically, this disease may be classified as localized (unicentric) or systemic (multicentric). Six cases of breast CD have been described in the literature, and all have been reported in adults. Herein we describe the case of a 15-year-old female who presented with a slow-growing tumor in the right breast. The tumor was excised and histopathological examination demonstrated hyaline vascular variant CD. After two years of follow-up, the patient was asymptomatic without evidence of cervical or axillary lymphadenopathy.


2020 ◽  
Vol 102 (4) ◽  
pp. e1-e3
Author(s):  
R Hajjar ◽  
M Plasse ◽  
F Vandenbroucke-Menu ◽  
F Schwenter ◽  
H Sebajang

Solid pseudopapillary tumours of the pancreas and giant splenic cysts are very rare entities, and their coexistence in a young female patient has not been previously reported in the literature. We present the case of a 27-year-old woman who presented with abdominal pain and two masses on abdominal imaging. A mass located in the right upper quadrant was biopsied, and histological and immunohistochemical analysis showed a solid pseudopapillary tumour of the pancreas. A giant cystic splenic lesion was also noted. The patient underwent a distal pancreatectomy and splenectomy in our referral centre. Margins were negative on histopathological examination. Negative surgical margins were achieved with distal pancreatectomy and splenectomy despite the large size of the pancreatic tumour. The management of solid pseudopapillary tumours of the pancreas is often challenging and the concomitant presence of a giant splenic cyst poses additional challenges to the surgical management of such tumours.


2013 ◽  
Vol 70 (1) ◽  
pp. 68-71
Author(s):  
Nebojsa Stojanovic ◽  
Ivan Ignjatovic ◽  
Milos Kostov ◽  
Zaklina Mijovic ◽  
Sladjana Zivkovic ◽  
...  

Background. Renal onkocytoma is a distinctive benign tumor derived from epithelial cells of the distal renal tubules. These tumors are often clinically asymptomatic, diagnosed accidentally and difficult to distinguish from renal cell carcinoma. Case report. We presented a giant renal onkocytoma in a man aged 64, without any signs or symptoms of the urogenital system disorder. The preoperative diagnosis described the tumor mass of the right kidney, size 16 x 14 cm, and indicated a malignant tumor of kidney. The patient underwent radical nephrectomy. The tumor was encapsulated at the intersection with the characteristic central hyaline scar. Microscopically, it was built of uniform polygonal cells with abundant eosinophilic cytoplasm. Immunohystochemiclly, tumor cells were immunoreactive to CK AE1/AE3 and CD 117, but showed negative immunoreactivity to CK 7, RCC marker and Vimentin. Conclusion. Giant renal oncocytomas are rare tumors with benign clinical course. As a rule, they are discovered by accident. Clinical differentiation from malignant tumors of the kidney is not possible. They are treated surgically, mainly by radical nephrectomy. A definitive diagnosis is made only by histopathological examination of tumors using immunohistochemical marker panels.


2021 ◽  
Vol 10 (34) ◽  
pp. 2939-2941
Author(s):  
Jiby Soosen Ninan ◽  
Ajithakumari K. ◽  
Tony Mathew

Primary cutaneous mucinous carcinoma (PCMC) also known as primary mucinous carcinoma of the skin (PMCS) or primary mucinous eccrine carcinoma (PMEC) is a rare malignant adnexal tumour of eccrine origin. Many visceral mucinous carcinomas especially of the breast and gastrointestinal tract can metastasize to the skin mimicking PCMC. Hence it is very important to rule out metastatic mucinous carcinomas before making a diagnosis of PCMC. Usually, PCMC presents as a slowgrowing tumour of considerably smaller size compared to our case. The large size and shorter duration are the key features of this case report. Here we report an unusually large-sized rare malignant tumour of skin appendage. Our patient was a 54-year-old lady who presented with progressive swelling of one year duration in the right frontoparietal area. Ultrasonography showed an ill-defined lesion in the subcutaneous plane with multiple cystic spaces within it. No bone involvement was noted. The excised lesion measured 13 x 7 x 2 cms and was diagnosed as primary cutaneous mucinous carcinoma on histopathological examination. The possibility of cutaneous secondaries from elsewhere was ruled out by detailed clinical and radiological investigations. The case is reported considering the unusually bigger size and shorter duration of this rare entity.


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Junita Joseph ◽  
Linda W. A. Rotty

Abstract: In general, lung cancer is all kinds of malignancy of the lung. It consists of malignancy derived from the lung itself (primary) and from out of the lung (metastasis). Clinically, primary lung cancers are malignant tumors derived from bronchial epithelium (bronchial carcinoma). Lung cancer is the main cause of death due to malignancy worldwide. We reported a male of 55-year-old male diagnosed as lung cancer. Diagnosis was based on anamnesis, physical examination, and supporting investigations. Anamnesis included smoking for 10 years ±15 cigarettes/day and complaints of shortness of breath, coughing, chest pain radiating to the back, and significant weight loss. Physical examination revealed enlargement of the right supraclavicular gland and decreased breath sounds in the right lung at the fifth intercostal space. Thorax photo, thorax CT-scan, and histopathological examination confirmed the diagnosis of lung cancer (adeno-carcinoma). Chemotherapy was administered with a combination of gemcitabine-cisplatin regimens for 12 cycles. The prognosis of this patient was poor because the disease had reached stage 4. However, the patient felt some clinical improvement after one month of chemotherapy.Keywords: lung cancer Abstrak: Kanker paru dalam arti luas adalah semua penyakit keganasan di paru, mencakup keganasan yang berasal dari paru sendiri (primer) maupun keganasan dari luar paru (metastasis). Dalam pengertian klinis yang dimaksud dengan kanker paru primer adalah tumor ganas yang berasal dari epitel bronkus (karsinoma bronkus). Kanker paru merupakan penyebab utama kematian akibat keganasan di dunia Kami melaporkan sebuah kasus kanker paru pada seorang laki-laki berusia 55 tahun. Diagnosis ditegakkan berdasarkan anamnesis, pemeriksaan fisik, dan pemeriksaan penunjang yang meliputi adanya riwayat merokok (sigaret) selama 10 tahun sebanyak ±15 batang rokok/hari, dengan sesak nafas, batuk, nyeri dada menjalar sampai ke punggung, dan penurunan berat badan yang nyata. Pada pemeriksaan fisik didapatkan pembesaran kelenjar supraklavikular kanan dan suara nafas menurun pada paru kanan setinggi sela iga V. Pada pemeriksaan penunjang foto toraks, thorax CT-scan, dan histopatologik didapatkan hasil yang menyokong diagnosis kanker paru (adenokarsinoma). Pada pasien ini, telah diberikan penata-laksanaan kemoterapi dengan kombinasi regimen gemcitabine-cisplatin selama 12 siklus. Progno-sis pasien ini buruk karena sudah sampai pada stadium 4, namun dengan kemoterapi yang dijalani sampai saat ini selama 1 bulan, pasien merasakan adanya perbaikan secara klinis.Kata kunci: kanker paru


2014 ◽  
Vol 4 (3) ◽  
pp. 46-55
Author(s):  
Vasudha Damle ◽  
Rahul Agarwal ◽  
Nitin Garg ◽  
Hanni V Gulwani

Hemangiopericytoma is a slow growing, vascular mesenchymal tumor, which may behave like a malignant tumor, leading to local recurrence, or metastasis, or both. This report is about a 32-year-old lady with non-axial proptosis and diminished vision due to a mass lesion in the superomedial quadrant of the right orbit. CT scan and MRI reports showed no intracranial extension. Surgical intervention was done through the roof of the orbit keeping hemangioma, neuroma or schwannoma as the leading differential diagnoses; however, on aspiration, it was not bleeding. It was confirmed to be a hemangiopericytoma on histopathological examination. The unique presentation, where, on tapping, no blood was found, makes this case an example of diagnostic dilemma. This lack of bleeding might be due to vascular insufficiency of the mass. Proptosis disappeared the following day after the surgery and vision also showed significant improvement to 20/20 within a week after surgery. The patient has been kept on regular follow up keeping in mind the recurrent and metastatic behavior of the tumor.


2020 ◽  
pp. 1-5
Author(s):  
Alessandro Crisci ◽  
Alessandro Crisci ◽  
Michela Crisci ◽  
Raffaele D’Adamo

Aims: Leiomyosarcomas are infrequent malignant tumors of smooth muscle, mainly derived from blood vessels or viscera. Superficial leiomyosarcomas are rare soft tissue sarcomas resulting from the dermis or subcutaneous tissue. They show a preference for proximal ends and tend to be slow-growing. They clearly show different histological and prognostic characteristics depending on whether they are cutaneous or subcutaneous. Case Report: We reported the case of subcutaneous leiomyosarcoma resulting in the medial subinguinal region of the right thigh in a 58-year-old female. Leiomyosarcoma is an entity whose clinical presentation may appear non-specific, making diagnosis difficult. We discussed the case with a brief review of the literature and the difficulties of a first approach clinical diagnosis. Conclusion: In conclusion, a long period of patient follow-up is recommended to capture a subsequent malignant progression of the disease.


Medicina ◽  
2022 ◽  
Vol 58 (1) ◽  
pp. 89
Author(s):  
Diana Bužinskienė ◽  
Vilius Rudaitis ◽  
Karolina Misevičiūtė

We report a 46-year-old patient who presented to the emergency department with complaints of acute abdominal pain, nausea, and vomiting. An abdominal CT scan revealed a large (207 × 155 × 182 mm) thin-walled inhomogeneous tumor connected to the uterus and right ovary. Emergency surgery laparotomy was performed. Inside the abdominal cavity, a 30 × 30 cm heterogenous, dark blue tumor in the right adnexa area, torsed two times, weighing 3700 g was found. Histological examination revealed right ovary clear cell carcinoma. We emphasize the rare nature of the histology and presentation of this case report. Ovarian clear cell carcinomas are relatively rare malignancies, presenting in 5 to 10% of ovarian malignant tumors in the west.


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