Alireza Ghanadan; Kambiz Kamyab; Ali Nili; Hamidreza Mahmoudi; Vahidehsadat Azhari; Anahita Borzouei; Shirin Taraz Jamshidi
Abstract
Background: Pilomatricoma is a benign skin adnexal neoplasm. Various histological features are observed on microscopic examination. We aimed to evaluate this tumor’s demographic and histological features in detail.Methods: One hundred cases with a diagnosis of pilomatricoma were selected, and demographic ...
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Background: Pilomatricoma is a benign skin adnexal neoplasm. Various histological features are observed on microscopic examination. We aimed to evaluate this tumor’s demographic and histological features in detail.Methods: One hundred cases with a diagnosis of pilomatricoma were selected, and demographic and clinical data were entered into a checklist. The pathology slides were reviewed to confirm the diagnosis. The demographic profile of all patients, including age and gender, primary clinical impression, multiplicity of the tumor, microscopic features, and location of tumoral involvement, were extracted. Qualitative data were summarized using frequencies and percentages. Regarding descriptive analysis, the frequency of each histopathologic feature was calculated.Results: Two groups of patients were identified regarding age. This tumor was more common in males among adult patients, while a female preponderance was seen in those under 18. Most lesions were located on the face (40%), followed by upper (32%) and lower (10%) limbs. In addition to well-known histological features, we observed intraepidermal pilomatricoma in two cases presenting unique histopathologic features. Both showed foci of suprabasal cleft formation, while one showed the Borst-Jadassohn phenomenon. These features, in addition to sebaceous differentiation and acantholysis of ghost cells, were not addressed in previous literature.Conclusion: Understanding the diverse and new histological features of pilomatricoma is necessary for differentiating it from other adnexal and soft tissue tumors.
Alireza Ghanadan; Kambiz Kamyab; Rokhsareh Yadegar; Mehri Maghsoodi
Abstract
Background and Aim: Mycosis fungoides (MF) is the most common form of primary cutaneous lymphoma, resulting from the infiltration of malignant T cells into skin tissues. The disease has three distinct stages: patch, plaque, and tumor. In the patch and plaque stages, it can mimic the clinical features ...
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Background and Aim: Mycosis fungoides (MF) is the most common form of primary cutaneous lymphoma, resulting from the infiltration of malignant T cells into skin tissues. The disease has three distinct stages: patch, plaque, and tumor. In the patch and plaque stages, it can mimic the clinical features of benign dermatoses. However, two scoring systems facilitate diagnosis at these stages, which will be discussed in more detail in this study.Methods: In this cross-sectional study, all formalin-fixed and paraffin-embedded skin specimens highly susceptible to MF based on clinical examination at the patch and plaque stages were collected from April 2017 to August 2019. They were subjected to H&E and IHC staining tests and examined according to Guitart and Pimpinelli criteria.Results: Out of 78 samples, 76 had histological criteria for MF according to Guitart’s criteria, 54 were immunologically significant according to Pimpinelli’s criteria for MF, and 52 were classified as definitive MF according to both criteria. CD3 and CD4 markers were the most frequent markers, respectively. In contrast to previous studies, the CD7 marker was expressed at 10% or higher in 24 cases. In addition, 65 of 78 samples had a CD8 marker, and only 13 samples were CD8-.Conclusion: In the early stages of MF, a single scoring system does not have sufficient sensitivity for the diagnosis. The triad of the patient’s clinical presentation and histological and immunohistochemical features play a key role in achieving the correct diagnosis.
Kambiz Kamyab Hesari; AliReza Ghanadan; Vahidehsadat Azhari; Shirin Taraz Jamshidi; Reza Amiri; Hamidreza Mahmoudi; Ali Salehi Farid; Ali Nili; Anahita Borzouei; Maryam Daneshpazhooh
Abstract
Background: Lichen planopilaris (LPP) is the most common form of immune-mediated scarring alopecia. We evaluated the histopathologic features of LPP in vertical sections of scalp biopsies and compared findings between the scarring and nonscarring phases of the disease.Methods: From June 2019 to June ...
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Background: Lichen planopilaris (LPP) is the most common form of immune-mediated scarring alopecia. We evaluated the histopathologic features of LPP in vertical sections of scalp biopsies and compared findings between the scarring and nonscarring phases of the disease.Methods: From June 2019 to June 2020, vertically sectioned scalp biopsies of 70 new cases of LPP were examined (H&E) according to North American Hair Research Society criteria. Furthermore, patients were divided into two groups based on either the presence or the absence of vertical fibrous bands, and other histopathological features were compared between these two groups.Results: Characteristic findings of LPP were perifollicular lymphocytic infiltration (97.1%), follicular interface degeneration (60%), and perifollicular plasmacytic infiltration (21.4%). Vacuolar degeneration in the dermo-epidermal junction (38.6%), perifollicular lamellar fibroplasia (67.1%), loss of sebaceous glands (87.1%), perifollicular cleft formation (28.6%), and vertical fibrous tracts (65.7%) were also found. Furthermore, we found a significant correlation between the presence of fibrous tracts with both loss of sebaceous glands (P = 0.005) and the presence of lamellar fibroplasia (P = 0.015).Conclusion: The most common findings in the histopathological examination of LPP slides are perifollicular lymphocytic infiltration and loss of the sebaceous glands. Furthermore, sebaceous gland loss and perifollicular lamellar fibroplasia correlate with the scarring phase of LPP.
Behzad Khodaei; Simin Seyedpour; Bahareh Gholami; Kambiz Kamyab Hesari; Seyed Ahmad Seyed Alinaghi; Maryam Nasimi
Abstract
Background: Nail disorders present with a wide range of manifestations. The problems associated with nail biopsiesmake the diagnosis even more challenging. Identifying the most common features of each nail disorder can prevent unnecessary biopsies and facilitate early diagnosis.Methods: We conducted ...
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Background: Nail disorders present with a wide range of manifestations. The problems associated with nail biopsiesmake the diagnosis even more challenging. Identifying the most common features of each nail disorder can prevent unnecessary biopsies and facilitate early diagnosis.Methods: We conducted a cross-sectional study on 528 pathology reports, documented from March 2018 to March 2019 in the Razi Dermatopathology Hospital, Tehran, Iran. We extracted the demographic data and the nails’ clinical and pathologic presentations. We used Fisher’s exact test to determine the nail features’ clinicopathological correlations.Results: The mean age of the 359 included patients was 38.81 ± 18.11 years, and 50.81% were male. Benign melanonychia (12.82%), traumatic nail (11.96%), and junctional nevus (11.11%) were the most prevalent disorders. Onycholysis (P < 0.001), longitudinal ridges (P < 0.001), subungual hyperkeratosis (P = 0.003), dystrophy (P = 0.017), discoloration (P = 0.052), and pitting (P < 0.001) correlated significantly with nail psoriasis. The presence of subungual hyperkeratosis, onycholysis, and longitudinal ridges significantly increased the odds of nail lichen planus. Only 6.79% of patients with longitudinal melanonychia had malignant melanoma, while most (26.54%) correlated with benign melanonychia.Conclusions: A detailed examination can narrow the differential diagnosis and avert unnecessary biopsies. However, in high-risk cases, physicians should regularly monitor the nails’ changes and response to treatment.
Alireza Firooz; Azin Ayatollahi; Kambiz Kamyab
Reza Yaghoobi; Nader Pazyar; Hooman Kalantar; Azita Nikoo; Zahra Naraghi; Kambiz Kamyab; Alireza Ganadan; Zohre Khodashenas; Azadeh Goodarzi; Fatemeh Mohaghegh
Volume 20, Issue 1 , 2017, , Pages 21-25
Abstract
Background: Basal cell carcinomas (BCC) are the most prevalent among non-melanoma skin cancers (NMSC), which correspond to the most common skin cancers. BCC histopathological subtyping is a problem in therapeutic management. Therefore, we have decided to perform a histopathologic study for better classification ...
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Background: Basal cell carcinomas (BCC) are the most prevalent among non-melanoma skin cancers (NMSC), which correspond to the most common skin cancers. BCC histopathological subtyping is a problem in therapeutic management. Therefore, we have decided to perform a histopathologic study for better classification of BCCs based on interobserver diagnostic judgment. Methods: We conducted this cross-sectional study on 100 randomly selected pathologically confirmed BCC cases of various subtypes at Razi Hospital, Tehran, Iran during 2013 and 2014. A total of four dermatopathologists independently reviewed each pathology slide to evaluate the interobserver concordance rate. Results: The overall Fleiss’ kappa statistic (kappa) for the BCC subtypes was 0.18 (P<0.001), which indicated slight agreement. We observed moderate agreement on superficial and nodular BCC (kappa: 0.0-0.4); fair agreement on infiltrative and keratotic BCC (kappa: 0.2-0.4); and slight agreement on pigmented, micronodular, and metatypical BCC (kappa: 0.0-0.2). There was moderate agreement diagnosis for the low and high risk growth pattern categories. Conclusion: Overall, we found that the dermatopathologists had inconsistent nomenclature for the BCC subtypes, however they had better agreement for the diagnosis of superficial, nodular, and infiltrative subtypes and the high risk growth pattern.
Mona Abdolreza; Vahide Lajevardi; Kamran Balighi; Kambiz Kamyab; Zahra Naraghi; Soroush Daklan
Volume 15, Issue 1 , 2012, , Pages 26-28
Abstract
A 25-year-old woman referred to our department with a lesion in the anterior part of her neck (Figure 1) since childhood. She complained of a clear discharge from the lesion which increased with pressure. Two years ago, the lesion was treated with electrosurgery but relapsed a few months later. Examination ...
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A 25-year-old woman referred to our department with a lesion in the anterior part of her neck (Figure 1) since childhood. She complained of a clear discharge from the lesion which increased with pressure. Two years ago, the lesion was treated with electrosurgery but relapsed a few months later. Examination revealed an erythematous papule in the anteriorinferior part of the neck with a clear mucoid discharge from its orifice upon pressure. Physical exam was otherwise normal. The patient had no other medical problems. She had never taken any medications. There was no family history of a similar problem. We advised the patient to be visited for excisional biopsy of the lesion.
Maryam Ghiasi; Samaneh Jamshidi; Hamed Ghasemi; Kambiz Kamyab; Azita Nikoo
Volume 14, Issue 3 , 2011, , Pages 106-108
Abstract
Porokeratotic Eccrine Ostial and Dermal Duct Nevus (PEODDN) is a rare disorder of keratinization that clinically resembles comedo nevus but occurs on the palms and soles and is characterized by cornoid lamella in the histopathology. We hereunder report a young male with mildly itchy papules on the lateral ...
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Porokeratotic Eccrine Ostial and Dermal Duct Nevus (PEODDN) is a rare disorder of keratinization that clinically resembles comedo nevus but occurs on the palms and soles and is characterized by cornoid lamella in the histopathology. We hereunder report a young male with mildly itchy papules on the lateral surface of the left foot who was diagnosed with PEODDN upon biopsy of the lesion. We briefly reviewed the several aspects of the condition in our paper.
Maryam Akhiani; Vahideh Lajevardi; Fatemeh Moeineddin; Kambiz Kamyab
Volume 11, Issue 3 , 2008, , Pages 126-128
Abstract
Porokeratosis (PK) is an uncommon disorder of epidermal keratinization characterized by annular plaques with an atrophic center surrounded by a raised, keratotic wall, with unknown aetiology and an unpredictable outcome. It has several clinical forms including porokeratosis of Mibelli, giant porokeratosis, ...
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Porokeratosis (PK) is an uncommon disorder of epidermal keratinization characterized by annular plaques with an atrophic center surrounded by a raised, keratotic wall, with unknown aetiology and an unpredictable outcome. It has several clinical forms including porokeratosis of Mibelli, giant porokeratosis, linear porokeratosis, disseminated superficial actinic porokeratosis, palmoplantar porokeratosis and punctate porokeratosis.Genital porokeratosis is a rare and probably underestimated subset of PK that mostly affects middle-aged men. Although there are many clinical variants, coexistence of different variants of porokeratosis in a single patient has been regarded as a rare occurrence. Here we report a rare variant of porokeratosis , genital or ptychotropica porokeratosis, accompanied by superficial actinic porokeratosis in a patient and his family members.
Maryam Akhiani; Katrin Kiavash; Kambiz Kamyab; Hasan Seirafi
Volume 10, Issue 4 , 2007, , Pages 353-354
Abstract
Netherton syndrome is a rare autosomal recessive condition with variable expression. It comprises an ichthyosiform dermatitis and erythroderma of variable intensity associated with hair abnormalities and features of atopy. The pathognomic (required for diagnosis) feature is trichorrhexis invaginata identified ...
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Netherton syndrome is a rare autosomal recessive condition with variable expression. It comprises an ichthyosiform dermatitis and erythroderma of variable intensity associated with hair abnormalities and features of atopy. The pathognomic (required for diagnosis) feature is trichorrhexis invaginata identified by microscopic examination of hair shaft. Ichthyosis linearis circumflexa is another typical lesion that may not always be observed. It comprises an episodic migrating erythematous and scaling annular and polycyclic flat patch with an advancing double edge of peeling scale. Here we present two cases of Netherton syndrome with characteristic manifestations mentioned above.