A Case of Sporadic Pseudohypoparathyroidism Type 1B Presented with Hypokalemia

Author(s):  
Wen-jun Yang ◽  
Qin Zhang ◽  
Ping Jin

Dear EditorLuo et al. 1 reported two cases of autosomal dominant pseudohypoparathyroidism type 1B (AD-PHP1B) and reviewed literature about the genetic and epigenetic characteristics of AD-PHP1B. Pseudohypoparathyroidism (PHP) is a cluster of heterogeneous diseases characterized by hypocalcemia and hyperphosphatemia due to resistance to parathyroid hormone (PTH). PHP1B almost results from methylation abnormalities of the maternal differentially methylated regions (DMRs) and can be divided into sporadic PHP1B and AD-PHP1B 1. As mentioned in this article 1, AD-PHP1B is caused by heterozygous maternal deletions within GNAS or STX16, which are associated with loss of methylation at the A/B DMR alone or at all maternally methylated GNAS exons. While sporadic PHP1B remains unclear at the molecular level, except for approximately 10% of the patients caused by paternal uniparental isodisomy or heterodisomy involving chromosome 20q (patUPD20q) 2. Here, we would like to present a rare case of sporadic PHP1B occurring in association with hypokalemia.

2021 ◽  
pp. 13-15
Author(s):  
Surya Rao Rao Venkata Mahipathy ◽  
Alagar Raja Durairaj ◽  
Narayanamurthy Sundaramurthy ◽  
Anand Prasath Jayachandiran ◽  
Suresh Rajendran

Neurobroma is a common benign tumour occurring as part of an autosomal dominant disorder, neurobromatosis type 1, leading to the formation of benign tumours or neurobromas of the peripheral nervous system. Large neurobromas of the brachial plexus are rare and present a difcult challenge for surgeon due to the anatomical complexity of the brachial plexus. Dermal neurobromas usually present with swelling and occasional pain, but neurobromas associated with the brachial plexus present with pain and neurological symptoms. These plexiform neurobromas of the brachial plexus are known to undergo malignant transformation. Here, we present a case of a large plexiform neurobroma affecting the left brachial plexus and extending till the elbow, conrmed with MRI and surgical debulking was done.


Author(s):  
Tivya Kulasegaran ◽  
Pranav Kumar

Familial hypocalciuric hypercalcaemia (FHH) is a rare genetic autosomal dominant disorder, with 3 variants described. An inactivating mutation in the calcium sensor receptor (CASR) gene causes the subtype 1, which represents 65% of the cases. Inactivation of Ca-sensing receptors (CaSR) can also lead to hypercalcemia associated with increased parathyroid hormone (PTH) secretion.[1] It is characterised by causes mild asymptomatic hypercalcemia[2] and hypocalciuria with normal or elevated PTH. FHH is generally asymptomatic and treatment is not needed. Differential diagnosis with primary hyperparathyroidism (PHPT) is crucial and based on calcium-creatinine clearance ratio (CCCR), which, when under 0.02 points to the diagnosis of FHH.[3] Genetic test is necessary for confirmation.[4]


2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Ruchit N. Shah ◽  
Michael Makar ◽  
Nasir Akhtar ◽  
Erin Forster

Hereditary hemorrhagic telangiectasia (HHT) is an uncommon autosomal dominant disorder characterized by telangiectasias and arteriovenous malformations. Multiple organ systems are involved including the skin, lungs, gastrointestinal tract, and brain. Hepatic encephalopathy is an extremely rare complication of HHT and early diagnosis and treatment can be life-saving. We present a rare case of hepatic encephalopathy caused by HHT-induced portosystemic shunting treated with lactulose.


2012 ◽  
Vol os19 (1) ◽  
pp. 35-38 ◽  
Author(s):  
Madiraju Gunashekhar ◽  
Mohammad Shahul Hameed ◽  
Syed Kamran Bokhari

Rubinstein-Taybi syndrome, or broad thumb-hallux syndrome, is a well-defined rare congenital disorder characterised by postnatal growth deficiency, craniofacial dysmorphism, broad thumbs and great toes, and mental retardation (intellectual disability). Occurrence may be either sporadic or through autosomal dominant inheritance. Reports of Rubinstein-Taybi syndrome are scarce in the literature. This case report describes the oral and dentofacial findings of Rubinstein-Taybi syndrome affecting a 13-year-old Indian female, including the uncommon presence of talon cusps and an unerupted supernumerary tooth.


2010 ◽  
Vol 124 (1) ◽  
pp. 57-60 ◽  
Author(s):  
T. Kampfenkel ◽  
A. Baraniskin ◽  
C. Teschendorf ◽  
W. Schmiegel ◽  
G. Massenkeil

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Ayşe Şeker Koçkara ◽  
Mansur Kayataş ◽  
Can Huzmeli ◽  
Ferhan Candan ◽  
Cesur Gümüş

Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disease and is responsible for 8–10% of patients with end-stage renal failure. The major extrarenal complications of ADPKD are cardiovascular abnormalities. Interrupted aortic arch (IAA) is a lethal congenital cardiac abnormality seen with a frequency of 3/1000000 births and is defined as a segment of the arcus aorta being atresic. In the literature, there are no any reports showing that polycystic kidney disease and interrupted aortic arch occur together. In this study, we present a rare case in which the patient has polycystic kidney disease and IAA together and discuss whether IAA is a complication of ADPKD.


Author(s):  
Anil Kumar Gupta ◽  
Kanishk Utkarsh Kaushik ◽  
Sushantika . ◽  
Shivangi Sachan

<p>Erythrokeratoderma is a rare group of disorders of autosomal dominant inheritance characterised by localised erythema and hyperkeratosis. Within a broad spectrum of phenotypes atleast two are delineated: a) Erythrokeratoderma variabilis and b) Progressive symmetric erythrokeratoderma. Here we are reporting a case of progressive symmetric erythrokeratoderma in an Indian family where five successive generations were involved.</p>


Author(s):  
Kumar Prateek ◽  
Meena Rinoo Banwarilal ◽  
Shyam Sundar Chaudhary ◽  
Meenaskhi Garg

Hailey-Hailey disease is an autosomal dominant acantholytic disorder relatively uncommon in India. It is characterized by painful, pruritic, foul smelling vesicles and bullous lesions with erosions in intertriginous areas such as the neck, axillae, inframammary areas and groin. The defect in ATPC2 gene leads to calcium channel dysfunction which results in defect in epidermis. Fungal infection, intertrigo, psoriasis, extramammary Paget's disease, acanthosis nigricans, pemphigus vegetans and Darier's disease are some of the dermatosis from which it needs to be differentiated. Histopathology has a key role in diagnosis of Hailey-Hailey disease with characteristic ‘dilapidated brick wall' appearance. Hailey-Hailey disease can be easily misdiagnosed by general physicians due to lack of knowledge of this uncommon disease as it resembles dermatosis involving intertriginous areas. Due to its relapsing and remitting course there is a need to have effective treatment options. We report a case of 45 year old middle aged female who presented with on and off itchy papules &amp; vesicles over right inframammmary region around the umbilicus &amp; medial aspect of right thigh. Skin biopsy revealed a diagnosis of Hailey-Hailey disease. This case is being reported due to its rare occurrence.


2021 ◽  
pp. 46-47
Author(s):  
Mahendar Reddy Muskula ◽  
Roshin P ◽  
Ajay J ◽  
Sanjeev Chetty

The upper limb malformations in association with congenital heart defects occurring as autosomal dominant disorder are seen in Holt-Oram syndrome. It is a very rare disorder which can be detected with early prenatal ultrasound checkups. Here we are reporting two cases of holt-oram syndrome


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