scholarly journals Nodular malignant melanoma in vulvar skin without pigmentation: a case report

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jing Nie ◽  
Yan Li ◽  
Xue Shen ◽  
Yan Liu ◽  
Haipeng Shi ◽  
...  

Abstract Background Polypoid nodule growing without apparent pigmentation on the vulvar skin usually reminds us of the diagnostic pitfall, which is commonly and mistakenly diagnosed as other types of tumors. Although there are several manifestations of amelanotic melanoma are known, these malignancies are usually pigmented because they are derived from melanocytes containing melanin. However, amelanotic melanomas are easily misdiagnosed or their diagnoses were commonly delayed due to lack of pigmentation. Therefore, a solitary polypoid nodule is worth noting and further reporting. Particularly, the clinical characteristics and outcomes of the solitary polypoid nodule are rare in Asian patients. Case presentation We presented an interesting case of a 33-year-old female with a solitary polypoid nodule without apparent pigmentation on her vulvar skin. Her medical history was unclear, no ulcer was seen in the lesion area, and dermatoscopy was indicated a possible tumorous change, which has caught the attention of clinicians, and then further examined by the pathologist. The final diagnosis was nodular malignant melanoma (NM) (Breslow thickness 9.5mm, Clark level 4). Conclusions Hence, though reviewing this case record, the relevant literature and NM-related materials, we suggest that the combination of skin imaging technology and histopathological examination could provide us a better understanding and reduce the possibility of misdiagnosis in clinic practice.

Author(s):  
Bhawana Pant ◽  
Sanjay Gaur ◽  
Prabhat Pant

F.NA.C has been used for ages as a safe and economical tool for fast preoperative diagnosis of parotid tumors. It has certain pitfall which sometimes leads to misdiagnosis and consequently it may have affect on treatment of the tumors. Keeping in view of the diverse classification of parotid tumors’ information from cytology should be combined with radiology as well as clinical diagnosis. Aim: To discuss some cases where there was discrepancy between cytological diagnosis and histopathological result and also suggest measures to improve the efficacy of F.N.A.C. Material and methods: The study includes 50 cases of parotid tumours who presented to the  department of ENT at Government medical college Haldwani which is a tertiary referral centre during 2009 to 2016. Only adult patients were included and inflammatory swelling were excluded from the study. All patients evaluated  Contrast enhanced computerized tomography(CECT) and  Magnetic resonance imaging (MRI) followed by Fine needle aspiration cytology .Preoperative diagnosis was made upon the findings of the above investigations and different types of  parotid surgeries  were done. . Final diagnosis was made on  histopathological  examination. Result :The most common tumour  came out to be pleomorphic adenoma (23 cases-46%) followed by mucoepidermoid carcinoma(12cases-24%). In ten  cases there was no clear cut  association between cytological diagnosis and final histopathological diagnosis. Conclusion: FNAC is highly sensitive and specific technique for diagnosis of many salivary gland swellings. FNAC can be used preoperatively to avoid unnecessary surgery and biopsy. Details of clinical information and radiologic features may help the pathologist to arrive at the appropriate diagnosis and reduce false interpretation. Pitfalls may also occur with improper technique of FNAC which can be overcome by proper caution.


2019 ◽  
Vol 24 (3) ◽  
Author(s):  
Ewa Krasuska-Sławińska ◽  
Izabela Królik-Elgas ◽  
Marzena Stypińska ◽  
Anna Matosek-Rutkowska

B-cell lymphoblastic lymphoma which is a type of non-Hodgkin lymphoma is rather uncommon in children. Focal changes in bones in the course of non-Hodgkin lymphoma are mostly secondary changes and their primal location in a bone is rare. PBL (primary bone lymphoma) mainly concerns a thighbone and a tibial bone; the primary location in jaw bones is quite sporadic. In diagnostics, there is mainly magnetic resonance, medical scan (tomography), and above all – histopathological test. There is also chemotherapy by choice, and primary location in a jaw or a mandible significantly advances the prognosis. The aim of the work is to introduce a patient who was definitively diagnosed B-cell lymphoblastic lymphoma from the early B-cells. The girl reported to Laryngological Clinic, Dental Surgery Clinic for Children, Oncological Clinic of Children’s Memorial Health Institute. The cause of the visit was an elevation on the right side of a nose base, present for two months and misdiagnosed by doctors as a post-traumatic swelling in this region. After introducing laboratory and scan diagnostics and taking biopsy from the lesion, a final conclusion was made. Also, a proper treatment according to the protocol for B-cell lymphoblastic lymphoma was introduced. Non-specific B-cell lymphoma picture, as mentioned in the described case, specifically due to location in a jaw bone and a slow pace of growing, may both constitute huge diagnostic problems and deteriorate prognosis. Therefore, it is important to take into account also lymphoma – in such location of a lesion. Moreover, it is worth remembering that the final diagnosis may only be passed on the basis of histopathological examination.


1987 ◽  
Vol 12 (1) ◽  
pp. 117-119
Author(s):  
P. CHAPMAN ◽  
A. BANERJEE ◽  
J. R. ANDERSON ◽  
B. G. H. LAMBERTY

Malignant melanoma in childhood is rare. An unusual case of amelanotic melanoma of the volar thumb in a fourteen-year-old boy which posed problems of recognition and management is presented.


2018 ◽  
Vol 63 (1) ◽  
pp. 32-34 ◽  
Author(s):  
B Finlay ◽  
T Ramachandren ◽  
K Hussey ◽  
S Parkyn ◽  
K Meyer ◽  
...  

Despite being recognised and reported in the literature for decades, subungual melanoma of the foot remains a diagnostic pitfall, with it commonly being mistaken for benign conditions. We present an interesting case of delayed diagnosis of subungual melanoma of the hallux that was misdiagnosed in the community for over one year. With melanoma being the fourth most commonly diagnosed cancer in Australia in 2013, this case serves as a reminder to all clinicians about the importance of maintaining a high index of suspicion for melanoma of the foot.


2022 ◽  
pp. 541-543
Author(s):  
Nidha Gaffoor ◽  
Hima Sree Edupuganti ◽  
Jessica Minal ◽  
Archana Shetty ◽  
Supriya T R ◽  
...  

Calcinosis cutis is an uncommon soft tissue lesion characterized by the deposition of calcium salts in the skin or subcutaneous tissue attributed to a wide variety of causes. We present a case of idiopathic calcinosis cutis in an adult male, who presented with a swelling in the right iliac region. Chalky white aspirate and amorphous basophilic granular material on microscopy suggestive of calcium deposits were noted. Histopathological examination of the excised mass coupled with appropriate clinical background led to the final diagnosis of idiopathic calcinosis cutis. We present this case with a complete diagnostic workup to undermine the importance of considering this lesion in the differential diagnoses of a subcutaneous hard lump in an otherwise healthy patient.


Author(s):  
Nikhil Sanjay Deshpande ◽  
Aditi Mittal ◽  
Anil B Munemane ◽  
Ravindra Raosaheb Karle

Cervical melanosis is a rare entity in the spectrum of melanocytic lesions of uterine cervix. Melanosis is defined as presence of melanocytes in the basal layer of squamous epithelium causing hyperpigmentation. Authors here by report a case of 57-year-old female who underwent vaginal hysterectomy for third degree utero-vaginal prolapse, showed an incidental gross pathological finding of brownish macular lesion. Histopathological examination showed hyperpigmentation of basal layer without increase in melanocytes. On immunohistochemical examination, basal melanocytes were highlighted by S-100 and HMB 45 immunostains. Thus final diagnosis of cervical melanosis was made. Clinical differentials of cervical pigmented melanocytic lesions include cervical melanomas, blue nevi, congenital or traumatic lesions and melanosis, hence vigilant clinical, gross pathological examination and biopsy is warranted.


Author(s):  
Kastanis G ◽  
Kapsetakis P ◽  
Magarakis G ◽  
Bachlitzanaki M ◽  
Christoforidis C ◽  
...  

Schwannomas or neurilemmomas are the most common benign tumors of the neural sheaths of the peripheral nerves. Incidence of these tumors in the hand accounts to 0.8-2%. The majority of them appear as an isolated grown mass along the route of the nerves. Peripheral nerves benign tumors present many difficulties concerning the clinical diagnosis and only histopathological evidence provides the final diagnosis. In this case study, we present a 45 year old man with a grown asymptomatic mass on the volar surface of right hand (hypothenar) remained for two years and impinging the skin of the hand only the last months. Initial MRI results diagnosed the mass as gaglion cyst. Histopathological examination revealed a schwannoma. We present this case as a rare manifestation of a schwannoma in hypothenar area of the hand. A literature review of diagnoses and therapeutic management is also presented.


Author(s):  
Mukesh Rawat ◽  
Archana Lall ◽  
Kavita Sachdeva

<p class="abstract"><strong>Background:  </strong>A wide spectrum of lesions may present as nasomaxillary swellings ranges from benign to malignant lesions including fungal sinusitis and fibro vascular lesions example: JNA (Juvenile nasopharyngeal angiofibroma) and Inverted papilloma. Many Pathologies ranging from benign to malignant tumors may mimic a simple Nasomaxillary mass. It is diagnostic challenge to determine pathology behind it. A detailed clinical evaluation with nasal endoscopy and relevant pre-operative investigations including radiological imaging and histopathological examination is essential to reach up to final diagnosis. The aim of the study was to do clinicopathological evaluation of patients presenting with nasomaxillary swelling and correlation of clinical, radiological and Histopathological findings.</p><p class="abstract"><strong>Methods: </strong>This was a prospective observational study on 50 nasomaxillary swelling patients who are presented in the Department of ENT and Head and Neck Surgery of N.S.C.B. MCH Jabalpur, a tertiary care Hospital, between March 2018 to August 2019. A detailed history taking and clinical examination with nasal endoscopy and relevant preoperative investigations including CECT Nose and PNS and histopathological examination was done in all patients.</p><p class="abstract"><strong>Results: </strong>50 Nasomaxillary swelling patients were selected for this study. 30 patients were male and 20 were females. Ages of patients were varied from 12 years to 72 years. 23 patients (46%) were malignant and 27 (54%) were benign. Histopathological examination results shows benign lesions like JNA (6 cases), fungal sinusitis (6 cases), dermoid cyst (1 case), inverted papilloma (3 cases), sebaceous cyst (1 case), jaw lesions (10 cases), (odontogenic like radicular/ infected cyst, dentigerous cyst, cystic ameloblastoma and non-odontogenic like fibrous dysplasia) and malignant lesions like SCC (squamous cell carcinoma) (12 cases), spindle cell sarcoma (2 cases), undifferentiated carcinoma (3 cases), adenocarcinoma (3 cases), adenoid cystic carcinoma (1 case), Invasive pleomorphic sarcoma (1 case) and malignant melanoma (1 case). SCC was most common lesion f/b JNA and fungal sinusitis. Well differentiated SCC was most common histological type (10 out of 12 cases of SCC). Most common symptom was nasal obstruction (66% cases) f/b epistaxis (52% cases) but epitasis was most common symptom among malignant and JNA cases. In 6 cases (3 JNA, 1 inverted papilloma, 1 malignancy and 1 radicular cyst) radiological diagnosis were not correlated with histological findings.</p><p class="abstract"><strong>Conclusions: </strong>Most our cases were malignant nasomaxillary lesions followed by fungal sinusitis and JNA. Most patients presented in advanced stage of disease so rapidly evaluation including nasal endoscopy should be done. CECT scan is essential to determine tumors extent and bony lesions. All patients should undergo hisotopatholigical examination. The final diagnosis should be made on the basis of clinical, radiological and histopathological findings.</p>


2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Abbas Darjani ◽  
Hojat Eftekhari ◽  
Seyedeh Rojin Amini Rad ◽  
Narges Alizadeh ◽  
Rana Rafiee ◽  
...  

Background: Skin diseases are the fourth most common cause of human illness, and blisters with different clinical manifestations make a diagnostic challenge. Objectives: This study aimed to evaluate the frequency and causes of subepidermal gaps or blisters, as well as the compliance rate between the initial and final clinical diagnoses based on pathology reports. Methods: In this cross-sectional study, pathology reports of subepidermal blisters or gaps were evaluated in the patients referred to the Razi Laboratory of Rasht from 2015 to 2019. The samples were examined by a pathologist after hematoxylin and eosin staining. The reports included demographic information, clinical differential diagnoses, final diagnosis, direct immunofluorescence findings, and salt split results. Finally, the compliance rate of clinical diagnosis with pathology reports was determined. Results: A total of 183 pathology reports were evaluated, 170 of which contained the final diagnosis. Females were more frequently affected by the disease, and pemphigoid bolus and lichen planus were the most prevalent final diagnoses. The compliance rate between the initial and final diagnoses was 94%. About 37.2% of the reports lacked direct immunofluorescence (DIF) and salt split, and only 42.6% of the samples had undergone DIF examination, while 20.2% had both DIF and salt split. There was no significant association between the compliance rate of the final diagnosis with age, sex, and undergoing diagnostic tests. Conclusions: A high incidence of subepidermal gaps or blisters was seen in middle-aged individuals and females. The compliance rate of the initial clinical diagnosis with the final diagnosis based on pathological reports was high. Our findings emphasize the importance of histopathological examination and the complementary role of direct immunofluorescence and salt split in diagnosis.


Cancer ◽  
1996 ◽  
Vol 78 (3) ◽  
pp. 383-389 ◽  
Author(s):  
Scott E. Kilpatrick ◽  
Wain L. White ◽  
J. Dale Browne

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